Release v34 (app)

Closes #119
Closes #159

.idea/.gitignore

@@ -1,5 +1,9 @@
-/inspectionProfiles/
+/codeStyles
+/dataSources.local.xml
+/deployment.xml
 /httpRequests/
-/shelf/
+/inspectionProfiles
 /misc.xml
+/shelf/
+/webServers.xml
 /workspace.xml

.idea/php.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PhpProjectSharedConfiguration" php_language_level="7.4" />
+</project>

app/.gitignore

@@ -0,0 +1,7 @@
+.vscode/
+.vs/
+
+bin/
+obj/
+
+*.user

app/.idea/.idea.DiscordHistoryTracker/.idea/.gitignore

@@ -0,0 +1,11 @@
+/.idea.DiscordHistoryTracker.iml
+/contentModel.xml
+/dataSources
+/dataSources.local.xml
+/dictionaries
+/httpRequests/
+/misc.xml
+/modules.xml
+/projectSettingsUpdater.xml
+/shelf/
+/workspace.xml

app/.idea/.idea.DiscordHistoryTracker/.idea/.name

@@ -0,0 +1 @@
+DiscordHistoryTracker

app/.idea/.idea.DiscordHistoryTracker/.idea/avalonia.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AvaloniaProject">
+    <option name="projectPerEditor">
+      <map>
+        <entry key="Desktop/App.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Dialogs/CheckBox/CheckBoxDialog.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Dialogs/Message/MessageDialog.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Dialogs/Progress/ProgressDialog.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/AboutWindow.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Controls/FilterPanel.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Controls/ServerConfigurationPanel.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Controls/StatusBar.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/MainWindow.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Pages/AdvancedPage.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Pages/DatabasePage.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Pages/TrackingPage.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Pages/ViewerPage.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Screens/MainContentScreen.axaml" value="Desktop/Desktop.csproj" />
+        <entry key="Desktop/Main/Screens/WelcomeScreen.axaml" value="Desktop/Desktop.csproj" />
+      </map>
+    </option>
+  </component>
+</project>

app/.idea/.idea.DiscordHistoryTracker/.idea/codeStyles/Project.xml

@@ -0,0 +1,448 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <option name="AUTODETECT_INDENTS" value="false" />
+    <option name="OTHER_INDENT_OPTIONS">
+      <value>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+      </value>
+    </option>
+    <option name="LINE_SEPARATOR" value="&#10;" />
+    <option name="RIGHT_MARGIN" value="999" />
+    <option name="FORMATTER_TAGS_ENABLED" value="true" />
+    <CssCodeStyleSettings>
+      <option name="HEX_COLOR_LOWER_CASE" value="true" />
+    </CssCodeStyleSettings>
+    <DB2CodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </DB2CodeStyleSettings>
+    <DerbyCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </DerbyCodeStyleSettings>
+    <GoCodeStyleSettings>
+      <option name="MOVE_ALL_STDLIB_IMPORTS_IN_ONE_GROUP" value="true" />
+      <option name="GROUP_STDLIB_IMPORTS" value="true" />
+      <option name="WRAP_COMP_LIT" value="5" />
+      <option name="WRAP_FUNC_PARAMS" value="5" />
+      <option name="WRAP_FUNC_RESULT" value="5" />
+    </GoCodeStyleSettings>
+    <H2CodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </H2CodeStyleSettings>
+    <H2CodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </H2CodeStyleSettings>
+    <HSQLCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </HSQLCodeStyleSettings>
+    <HTMLCodeStyleSettings>
+      <option name="HTML_ALIGN_TEXT" value="true" />
+      <option name="HTML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+      <option name="HTML_ELEMENTS_TO_REMOVE_NEW_LINE_BEFORE" value="" />
+      <option name="HTML_DO_NOT_INDENT_CHILDREN_OF" value="" />
+    </HTMLCodeStyleSettings>
+    <JSCodeStyleSettings version="0">
+      <option name="FORCE_SEMICOLON_STYLE" value="true" />
+      <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACKETS" value="true" />
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="FORCE_QUOTE_STYlE" value="true" />
+      <option name="SPACES_WITHIN_OBJECT_LITERAL_BRACES" value="true" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+      <option name="USE_CHAINED_CALLS_GROUP_INDENTS" value="true" />
+      <option name="SPACE_BEFORE_ASYNC_ARROW_LPAREN" value="false" />
+    </JSCodeStyleSettings>
+    <JSON>
+      <option name="OBJECT_WRAPPING" value="5" />
+      <option name="ARRAY_WRAPPING" value="5" />
+    </JSON>
+    <JavaCodeStyleSettings>
+      <option name="INSERT_INNER_CLASS_IMPORTS" value="true" />
+      <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
+      <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
+      <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
+        <value />
+      </option>
+      <option name="IMPORT_LAYOUT_TABLE">
+        <value>
+          <package name="" withSubpackages="true" static="false" />
+          <package name="javax" withSubpackages="true" static="false" />
+          <package name="java" withSubpackages="true" static="false" />
+          <package name="" withSubpackages="true" static="true" />
+        </value>
+      </option>
+    </JavaCodeStyleSettings>
+    <JetCodeStyleSettings>
+      <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+        <value>
+          <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+        </value>
+      </option>
+      <option name="ALIGN_IN_COLUMNS_CASE_BRANCH" value="true" />
+      <option name="NAME_COUNT_TO_USE_STAR_IMPORT" value="2147483647" />
+      <option name="NAME_COUNT_TO_USE_STAR_IMPORT_FOR_MEMBERS" value="2147483647" />
+      <option name="IMPORT_NESTED_CLASSES" value="true" />
+      <option name="WRAP_ELVIS_EXPRESSIONS" value="0" />
+      <option name="ALLOW_TRAILING_COMMA" value="true" />
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </JetCodeStyleSettings>
+    <LessCodeStyleSettings>
+      <option name="HEX_COLOR_LOWER_CASE" value="true" />
+    </LessCodeStyleSettings>
+    <MSSQLCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </MSSQLCodeStyleSettings>
+    <MySQLCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </MySQLCodeStyleSettings>
+    <Objective-C>
+      <option name="INDENT_DIRECTIVE_AS_CODE" value="true" />
+      <option name="KEEP_STRUCTURES_IN_ONE_LINE" value="true" />
+      <option name="KEEP_CASE_EXPRESSIONS_IN_ONE_LINE" value="true" />
+      <option name="SPACE_BEFORE_INIT_LIST" value="true" />
+      <option name="SPACE_AFTER_DICTIONARY_LITERAL_COLON" value="false" />
+    </Objective-C>
+    <OracleCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </OracleCodeStyleSettings>
+    <PHPCodeStyleSettings>
+      <option name="ALIGN_KEY_VALUE_PAIRS" value="true" />
+      <option name="CONCAT_SPACES" value="false" />
+      <option name="COMMA_AFTER_LAST_ARRAY_ELEMENT" value="true" />
+      <option name="PHPDOC_BLANK_LINE_BEFORE_TAGS" value="true" />
+      <option name="LOWER_CASE_BOOLEAN_CONST" value="true" />
+      <option name="LOWER_CASE_NULL_CONST" value="true" />
+      <option name="ELSE_IF_STYLE" value="COMBINE" />
+      <option name="VARIABLE_NAMING_STYLE" value="SNAKE_CASE" />
+      <option name="KEEP_BLANK_LINES_AFTER_LBRACE" value="0" />
+      <option name="SPACE_BEFORE_CLOSURE_LEFT_PARENTHESIS" value="false" />
+      <option name="FORCE_SHORT_DECLARATION_ARRAY_STYLE" value="true" />
+      <option name="NEW_LINE_AFTER_PHP_OPENING_TAG" value="true" />
+      <option name="SPACE_AROUND_ASSIGNMENT_IN_DECLARE" value="true" />
+    </PHPCodeStyleSettings>
+    <PostgresCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </PostgresCodeStyleSettings>
+    <Properties>
+      <option name="KEEP_BLANK_LINES" value="true" />
+    </Properties>
+    <Python>
+      <option name="SPACE_AROUND_EQ_IN_NAMED_PARAMETER" value="true" />
+      <option name="SPACE_AROUND_EQ_IN_KEYWORD_ARGUMENT" value="true" />
+      <option name="NEW_LINE_AFTER_COLON" value="true" />
+      <option name="DICT_WRAPPING" value="5" />
+      <option name="DICT_NEW_LINE_AFTER_LEFT_BRACE" value="true" />
+      <option name="DICT_NEW_LINE_BEFORE_RIGHT_BRACE" value="true" />
+    </Python>
+    <RsCodeStyleSettings>
+      <option name="ALIGN_RET_TYPE" value="false" />
+      <option name="ALIGN_TYPE_PARAMS" value="true" />
+      <option name="ALLOW_ONE_LINE_MATCH" value="true" />
+      <option name="SPACE_AROUND_ASSOC_TYPE_BINDING" value="true" />
+    </RsCodeStyleSettings>
+    <Ruby>
+      <option name="INDENT_PRIVATE_METHODS" value="true" />
+      <option name="INDENT_PROTECTED_METHODS" value="true" />
+      <option name="INDENT_PUBLIC_METHODS" value="true" />
+      <option name="INDENT_WHEN_CASES" value="true" />
+      <option name="CHAIN_CALLS_ALIGNMENT" value="2" />
+    </Ruby>
+    <SQLiteCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </SQLiteCodeStyleSettings>
+    <ScssCodeStyleSettings>
+      <option name="HEX_COLOR_LOWER_CASE" value="true" />
+    </ScssCodeStyleSettings>
+    <SqlCodeStyleSettings version="6">
+      <option name="KEYWORD_CASE" value="2" />
+      <option name="TYPE_CASE" value="2" />
+      <option name="CUSTOM_TYPE_CASE" value="2" />
+      <option name="SUBQUERY_CONTENT" value="1" />
+      <option name="SUBQUERY_CLOSING" value="1" />
+      <option name="INSERT_TABLE_EL_LINE" value="0" />
+      <option name="INSERT_EL_WRAP" value="2" />
+      <option name="SET_EL_WRAP" value="2" />
+      <option name="SET_ALIGN_EQUAL_SIGN" value="false" />
+      <option name="FROM_EL_WRAP" value="2" />
+      <option name="FROM_ALIGN_JOIN_TABLES" value="true" />
+      <option name="FROM_INDENT_JOIN" value="false" />
+      <option name="FROM_ONLY_JOIN_INDENT" value="2" />
+      <option name="WHERE_EL_WRAP" value="2" />
+      <option name="TABLE_OPENING" value="1" />
+      <option name="TABLE_CONTENT" value="2" />
+      <option name="TABLE_CLOSING" value="3" />
+      <option name="TABLE_DEFAULTS_ALIGN" value="false" />
+      <option name="TABLE_NULLABILITIES_ALIGN" value="false" />
+      <option name="CONSTRAINT_WRAP_1" value="false" />
+      <option name="CONSTRAINT_WRAP_3" value="true" />
+      <option name="CONSTRAINT_WRAP_4" value="true" />
+      <option name="VIEW_INDENT_QUERY" value="true" />
+      <option name="EXPR_CASE_WHEN_WRAP" value="false" />
+    </SqlCodeStyleSettings>
+    <SybaseCodeStyleSettings version="6">
+      <option name="USE_GENERIC_STYLE" value="true" />
+    </SybaseCodeStyleSettings>
+    <TypeScriptCodeStyleSettings version="0">
+      <option name="SPACE_BEFORE_FUNCTION_LEFT_PARENTH" value="false" />
+      <option name="ENFORCE_TRAILING_COMMA" value="WhenMultiline" />
+      <option name="SPACES_WITHIN_IMPORTS" value="true" />
+      <option name="USE_CHAINED_CALLS_GROUP_INDENTS" value="true" />
+      <option name="SPACE_BEFORE_ASYNC_ARROW_LPAREN" value="false" />
+    </TypeScriptCodeStyleSettings>
+    <XML>
+      <option name="XML_SPACE_INSIDE_EMPTY_TAG" value="true" />
+    </XML>
+    <codeStyleSettings language="CMake">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="CSS">
+      <indentOptions>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Groovy">
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="HTML">
+      <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false" />
+      <option name="BLOCK_COMMENT_AT_FIRST_COLUMN" value="false" />
+      <indentOptions>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JAVA">
+      <option name="RIGHT_MARGIN" value="999" />
+      <option name="BLANK_LINES_AFTER_PACKAGE" value="0" />
+      <option name="BLANK_LINES_BEFORE_IMPORTS" value="0" />
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
+      <option name="SPACE_AFTER_TYPE_CAST" value="false" />
+      <option name="SPACE_BEFORE_SYNCHRONIZED_PARENTHESES" value="false" />
+      <option name="KEEP_SIMPLE_METHODS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_LAMBDAS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_CLASSES_IN_ONE_LINE" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JSON">
+      <option name="KEEP_BLANK_LINES_IN_CODE" value="1" />
+      <option name="SPACE_WITHIN_BRACKETS" value="true" />
+      <option name="SPACE_WITHIN_BRACES" value="true" />
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="JavaScript">
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="ALIGN_MULTILINE_TERNARY_OPERATION" value="true" />
+      <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="LESS">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Lua">
+      <indentOptions>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="ObjectiveC">
+      <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false" />
+      <option name="BLOCK_COMMENT_AT_FIRST_COLUMN" value="false" />
+      <option name="LINE_COMMENT_ADD_SPACE" value="true" />
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="PHP">
+      <option name="LINE_COMMENT_AT_FIRST_COLUMN" value="false" />
+      <option name="KEEP_FIRST_COLUMN_COMMENT" value="false" />
+      <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false" />
+      <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="1" />
+      <option name="KEEP_BLANK_LINES_IN_CODE" value="1" />
+      <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="0" />
+      <option name="CLASS_BRACE_STYLE" value="1" />
+      <option name="METHOD_BRACE_STYLE" value="1" />
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="SPECIAL_ELSE_IF_TREATMENT" value="true" />
+      <option name="ALIGN_MULTILINE_CHAINED_METHODS" value="true" />
+      <option name="ALIGN_MULTILINE_PARAMETERS_IN_CALLS" value="true" />
+      <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true" />
+      <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true" />
+      <option name="KEEP_SIMPLE_METHODS_IN_ONE_LINE" value="true" />
+      <option name="KEEP_SIMPLE_CLASSES_IN_ONE_LINE" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
+        <option name="INDENT_SIZE" value="2" />
+        <option name="TAB_SIZE" value="2" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Puppet">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Python">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="RHTML">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Rust">
+      <option name="RIGHT_MARGIN" value="140" />
+      <option name="ALIGN_MULTILINE_CHAINED_METHODS" value="true" />
+      <indentOptions>
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="SASS">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="SCSS">
+      <indentOptions>
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="SQL">
+      <indentOptions>
+        <option name="USE_TAB_CHARACTER" value="true" />
+        <option name="SMART_TABS" value="true" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="Shell Script">
+      <indentOptions>
+        <option name="INDENT_SIZE" value="4" />
+        <option name="TAB_SIZE" value="4" />
+        <option name="USE_TAB_CHARACTER" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="TOML">
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+        <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+      </indentOptions>
+    </codeStyleSettings>
+    <codeStyleSettings language="TypeScript">
+      <option name="ELSE_ON_NEW_LINE" value="true" />
+      <option name="ALIGN_MULTILINE_TERNARY_OPERATION" value="true" />
+      <option name="ALIGN_MULTILINE_ARRAY_INITIALIZER_EXPRESSION" value="true" />
+      <option name="IF_BRACE_FORCE" value="3" />
+      <option name="DOWHILE_BRACE_FORCE" value="3" />
+      <option name="WHILE_BRACE_FORCE" value="3" />
+      <option name="FOR_BRACE_FORCE" value="3" />
+      <indentOptions>
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app/.idea/.idea.DiscordHistoryTracker/.idea/codeStyles/codeStyleConfig.xml

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app/.idea/.idea.DiscordHistoryTracker/.idea/dataSources.xml

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+    <data-source source="LOCAL" name="empty.dht" read-only="true" uuid="e01b8deb-489e-470a-9011-f6548927191e">
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+      <working-dir>$ProjectFileDir$</working-dir>
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app/.idea/.idea.DiscordHistoryTracker/.idea/indexLayout.xml

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+    <explicitExcludes />
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app/.idea/.idea.DiscordHistoryTracker/.idea/inspectionProfiles/Project_Default.xml

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app/.idea/.idea.DiscordHistoryTracker/.idea/inspectionProfiles/profiles_settings.xml

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app/.idea/.idea.DiscordHistoryTracker/.idea/jsonSchemas.xml

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+  <component name="JsonSchemaMappingsProjectConfiguration">
+    <state>
+      <map>
+        <entry key="track-channel">
+          <value>
+            <SchemaInfo>
+              <option name="name" value="track-channel" />
+              <option name="relativePathToSchema" value="Resources/Schemas/track-channel.yml" />
+              <option name="schemaVersion" value="JSON Schema version 7" />
+            </SchemaInfo>
+          </value>
+        </entry>
+        <entry key="track-messages">
+          <value>
+            <SchemaInfo>
+              <option name="name" value="track-messages" />
+              <option name="relativePathToSchema" value="Resources/Schemas/track-messages.yml" />
+              <option name="schemaVersion" value="JSON Schema version 7" />
+            </SchemaInfo>
+          </value>
+        </entry>
+        <entry key="track-users">
+          <value>
+            <SchemaInfo>
+              <option name="name" value="track-users" />
+              <option name="relativePathToSchema" value="Resources/Schemas/track-users.yml" />
+              <option name="schemaVersion" value="JSON Schema version 7" />
+            </SchemaInfo>
+          </value>
+        </entry>
+      </map>
+    </state>
+  </component>
+</project>

app/.idea/.idea.DiscordHistoryTracker/.idea/libraries/Generated_files.xml

@@ -0,0 +1,22 @@
+<component name="libraryTable">
+  <library name="Generated files" type="javaScript">
+    <properties>
+      <sourceFilesUrls>
+        <item url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/discord.js" />
+        <item url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/dom.js" />
+        <item url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/gui.js" />
+        <item url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/settings.js" />
+        <item url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/state.js" />
+      </sourceFilesUrls>
+    </properties>
+    <CLASSES>
+      <root url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/discord.js" />
+      <root url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/dom.js" />
+      <root url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/gui.js" />
+      <root url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/settings.js" />
+      <root url="file://$PROJECT_DIR$/Resources/Tracker/scripts.min/state.js" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
+</component>

app/.idea/.idea.DiscordHistoryTracker/.idea/runConfigurations/Desktop.xml

@@ -0,0 +1,20 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Desktop" type="DotNetProject" factoryName=".NET Project">
+    <option name="EXE_PATH" value="$PROJECT_DIR$/Desktop/bin/Debug/net5.0/DiscordHistoryTracker.exe" />
+    <option name="PROGRAM_PARAMETERS" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/Desktop/bin/Debug/net5.0" />
+    <option name="PASS_PARENT_ENVS" value="1" />
+    <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="USE_MONO" value="0" />
+    <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="PROJECT_PATH" value="$PROJECT_DIR$/Desktop/Desktop.csproj" />
+    <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
+    <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
+    <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
+    <option name="PROJECT_KIND" value="DotNetCore" />
+    <option name="PROJECT_TFM" value="net5.0" />
+    <method v="2">
+      <option name="Build" />
+    </method>
+  </configuration>
+</component>

app/.idea/.idea.DiscordHistoryTracker/.idea/runConfigurations/Minify.xml

@@ -0,0 +1,23 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Minify" type="PythonConfigurationType" factoryName="Python">
+    <module name="rider.module" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+    <option name="IS_MODULE_SDK" value="false" />
+    <option name="ADD_CONTENT_ROOTS" value="false" />
+    <option name="ADD_SOURCE_ROOTS" value="false" />
+    <option name="SCRIPT_NAME" value="$PROJECT_DIR$/minify.py" />
+    <option name="PARAMETERS" value="" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="false" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>

app/.idea/.idea.DiscordHistoryTracker/.idea/scopes/Resources.xml

@@ -0,0 +1,3 @@
+<component name="DependencyValidationManager">
+  <scope name="Resources" pattern="file:Tracker/scripts/*" />
+</component>

app/.idea/.idea.DiscordHistoryTracker/.idea/sqldialects.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="PROJECT" dialect="SQLite" />
+  </component>
+</project>

app/.idea/.idea.DiscordHistoryTracker/.idea/vcs.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitSharedSettings">
+    <option name="FORCE_PUSH_PROHIBITED_PATTERNS">
+      <list />
+    </option>
+  </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

app/Desktop/App.axaml

@@ -0,0 +1,167 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:common="clr-namespace:DHT.Desktop.Common"
+             xmlns:system="clr-namespace:System;assembly=System.Runtime"
+             x:Class="DHT.Desktop.App">
+
+    <Application.Styles>
+
+        <FluentTheme Mode="Light" />
+
+        <Style Selector="Button, CheckBox, RadioButton, Expander /template/ ToggleButton#ExpanderHeader">
+            <Setter Property="Cursor" Value="Hand" />
+        </Style>
+
+        <Style Selector="Button">
+            <Setter Property="Padding" Value="10 7 10 6" />
+            <Setter Property="BorderThickness" Value="1" />
+            <Setter Property="HorizontalContentAlignment" Value="Center" />
+            <Setter Property="VerticalContentAlignment" Value="Center" />
+        </Style>
+        <Style Selector="Button:pressed">
+            <Setter Property="RenderTransform" Value="none" />
+        </Style>
+
+        <Style Selector="TextBox">
+            <Setter Property="Padding" Value="6 0" />
+            <Setter Property="VerticalContentAlignment" Value="Center" />
+        </Style>
+        <Style Selector="TextBox /template/ TextBlock#PART_Watermark">
+            <Setter Property="VerticalAlignment" Value="Center" />
+        </Style>
+        <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
+            <Setter Property="BorderThickness" Value="1" />
+        </Style>
+        <Style Selector="TextBox:disabled"><!-- TODO bug in Avalonia (https://github.com/AvaloniaUI/Avalonia/pull/7792) -->
+            <Setter Property="Foreground" Value="{DynamicResource TextControlForegroundDisabled}" />
+        </Style>
+
+        <Style Selector="Expander /template/ ToggleButton#ExpanderHeader">
+            <Setter Property="HorizontalContentAlignment" Value="Left" />
+            <Setter Property="Template">
+                <ControlTemplate>
+                    <Border x:Name="ToggleButtonBackground">
+                        <Grid ColumnDefinitions="Auto,*" RowDefinitions="35">
+                            <Border x:Name="ExpandCollapseChevronBorder"
+                                    Grid.Column="0"
+                                    Width="35"
+                                    Height="35"
+                                    Margin="2,0"
+                                    RenderTransformOrigin="50%,50%">
+                                <Path x:Name="ExpandCollapseChevron"
+                                      HorizontalAlignment="Center"
+                                      VerticalAlignment="Center"
+                                      RenderTransformOrigin="50%,50%"
+                                      Stretch="None"
+                                      Stroke="{DynamicResource ExpanderChevronForeground}"
+                                      StrokeThickness="1" />
+                                <Border.RenderTransform>
+                                    <RotateTransform />
+                                </Border.RenderTransform>
+                            </Border>
+                            <ContentPresenter x:Name="PART_ContentPresenter"
+                                              Grid.Column="1"
+                                              Margin="0"
+                                              HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
+                                              VerticalContentAlignment="Center"
+                                              Background="Transparent"
+                                              BorderBrush="Transparent"
+                                              BorderThickness="0"
+                                              Content="{TemplateBinding Content}"
+                                              ContentTemplate="{TemplateBinding ContentTemplate}"
+                                              TextBlock.Foreground="{DynamicResource ExpanderForeground}" />
+                        </Grid>
+                    </Border>
+                </ControlTemplate>
+            </Setter>
+        </Style>
+        <Style Selector="Expander:expanded /template/ ToggleButton#ExpanderHeader /template/ Border#ExpandCollapseChevronBorder">
+            <Style.Animations>
+                <Animation FillMode="Both" Duration="0:0:0.0625">
+                    <KeyFrame Cue="0%">
+                        <Setter Property="RotateTransform.Angle" Value="180" />
+                    </KeyFrame>
+                    <KeyFrame Cue="100%">
+                        <Setter Property="RotateTransform.Angle" Value="180" />
+                    </KeyFrame>
+                </Animation>
+            </Style.Animations>
+        </Style>
+        <Style Selector="Expander:not(:expanded) /template/ ToggleButton#ExpanderHeader /template/ Border#ExpandCollapseChevronBorder">
+            <Style.Animations>
+                <Animation FillMode="Both" Duration="0:0:0.0625">
+                    <KeyFrame Cue="0%">
+                        <Setter Property="RotateTransform.Angle" Value="0" />
+                    </KeyFrame>
+                    <KeyFrame Cue="100%">
+                        <Setter Property="RotateTransform.Angle" Value="0" />
+                    </KeyFrame>
+                </Animation>
+            </Style.Animations>
+        </Style>
+
+    </Application.Styles>
+
+    <Application.Resources>
+
+        <common:NumberValueConverter x:Key="NumberValueConverter" />
+
+        <system:Double x:Key="ControlContentThemeFontSize">14</system:Double>
+        <CornerRadius x:Key="ControlCornerRadius">0</CornerRadius>
+
+        <Color x:Key="SystemAccentColor">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorDark1">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorDark2">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorDark3">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorLight1">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorLight2">#3C5F95</Color>
+        <Color x:Key="SystemAccentColorLight3">#3C5F95</Color>
+
+        <system:Double x:Key="ScrollBarSize">14</system:Double>
+        <TransformOperations x:Key="VerticalSmallScrollThumbScaleTransform">scaleX(0.5) translateX(-3px)</TransformOperations>
+        <TransformOperations x:Key="HorizontalSmallScrollThumbScaleTransform">scaleY(0.5) translateY(-3px)</TransformOperations>
+        <SolidColorBrush x:Key="ScrollBarPanningThumbBackground" Color="#8F8F8F" />
+
+        <SolidColorBrush x:Key="ButtonBorderBrush" Color="#3C5F95" />
+        <SolidColorBrush x:Key="ButtonBorderBrushPointerOver" Color="#0E2B59" />
+        <SolidColorBrush x:Key="ButtonBorderBrushPressed" Color="#061742" />
+        <SolidColorBrush x:Key="ButtonBorderBrushDisabled" Color="#9B9B9B" />
+        <SolidColorBrush x:Key="ButtonBackground" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="ButtonBackgroundPointerOver" Color="#F6F9FD" />
+        <SolidColorBrush x:Key="ButtonBackgroundPressed" Color="#EDF3FD" />
+        <SolidColorBrush x:Key="ButtonBackgroundDisabled" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="ButtonForeground" Color="#112961" />
+        <SolidColorBrush x:Key="ButtonForegroundPointerOver" Color="#050E41" />
+        <SolidColorBrush x:Key="ButtonForegroundPressed" Color="#010320" />
+        <SolidColorBrush x:Key="ButtonForegroundDisabled" Color="#8C8C8C" />
+
+        <SolidColorBrush x:Key="TextControlBorderBrush" Color="#515151" />
+        <SolidColorBrush x:Key="TextControlBorderBrushPointerOver" Color="#000000" />
+        <SolidColorBrush x:Key="TextControlBorderBrushFocused" Color="#3C5F95" />
+        <SolidColorBrush x:Key="TextControlBorderBrushDisabled" Color="#9B9B9B" />
+        <SolidColorBrush x:Key="TextControlBackground" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="TextControlBackgroundPointerOver" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="TextControlBackgroundFocused" Color="#F8FCFF" />
+        <SolidColorBrush x:Key="TextControlBackgroundDisabled" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="TextControlForeground" Color="#000000" />
+        <SolidColorBrush x:Key="TextControlForegroundPointerOver" Color="#000000" />
+        <SolidColorBrush x:Key="TextControlForegroundFocused" Color="#000000" />
+        <SolidColorBrush x:Key="TextControlForegroundDisabled" Color="#8C8C8C" />
+        <SolidColorBrush x:Key="TextControlSelectionHighlightColor" Color="#DEE9F8" />
+        <SolidColorBrush x:Key="TextControlPlaceholderForeground" Color="#AAAAAA" />
+        <SolidColorBrush x:Key="TextControlPlaceholderForegroundPointerOver" Color="#AAAAAA" />
+        <SolidColorBrush x:Key="TextControlPlaceholderForegroundFocused" Color="#AAAAAA" />
+        <SolidColorBrush x:Key="TextControlPlaceholderForegroundDisabled" Color="#AAAAAA" />
+
+        <Thickness x:Key="ExpanderHeaderPadding">15,0</Thickness>
+        <Thickness x:Key="ExpanderContentPadding">15</Thickness>
+        <SolidColorBrush x:Key="ExpanderBorderBrush" Color="#697DAB" />
+        <SolidColorBrush x:Key="ExpanderBackground" Color="#697DAB" />
+        <SolidColorBrush x:Key="ExpanderForeground" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="ExpanderChevronForeground" Color="#FFFFFF" />
+        <SolidColorBrush x:Key="ExpanderDropDownBorderBrush" Color="#697DAB" />
+        <SolidColorBrush x:Key="ExpanderDropDownBackground" Color="#FFFFFF" />
+
+    </Application.Resources>
+
+</Application>

app/Desktop/App.axaml.cs

@@ -0,0 +1,20 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+using DHT.Desktop.Main;
+
+namespace DHT.Desktop {
+	sealed class App : Application {
+		public override void Initialize() {
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public override void OnFrameworkInitializationCompleted() {
+			if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop) {
+				desktop.MainWindow = new MainWindow(new Arguments(desktop.Args));
+			}
+
+			base.OnFrameworkInitializationCompleted();
+		}
+	}
+}

app/Desktop/Arguments.cs

@@ -0,0 +1,65 @@
+using System;
+using DHT.Utils.Logging;
+
+namespace DHT.Desktop {
+	sealed class Arguments {
+		private static readonly Log Log = Log.ForType<Arguments>();
+
+		public static Arguments Empty => new(Array.Empty<string>());
+
+		public string? DatabaseFile { get; }
+		public ushort? ServerPort { get; }
+		public string? ServerToken { get; }
+
+		public Arguments(string[] args) {
+			for (int i = 0; i < args.Length; i++) {
+				string key = args[i];
+
+				switch (key) {
+					case "-debug":
+						Log.IsDebugEnabled = true;
+						continue;
+				}
+
+				string value;
+
+				if (i == 0 && !key.StartsWith('-')) {
+					value = key;
+					key = "-db";
+				}
+				else if (i >= args.Length - 1) {
+					Log.Warn("Missing value for command line argument: " + key);
+					continue;
+				}
+				else {
+					value = args[++i];
+				}
+
+				switch (key) {
+					case "-db":
+						DatabaseFile = value;
+						continue;
+
+					case "-port": {
+						if (ushort.TryParse(value, out var port)) {
+							ServerPort = port;
+						}
+						else {
+							Log.Warn("Invalid port number: " + value);
+						}
+
+						continue;
+					}
+
+					case "-token":
+						ServerToken = value;
+						continue;
+
+					default:
+						Log.Warn("Unknown command line argument: " + key);
+						break;
+				}
+			}
+		}
+	}
+}

app/Desktop/Common/DatabaseGui.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Server.Database;
+using DHT.Server.Database.Exceptions;
+using DHT.Server.Database.Sqlite;
+using DHT.Utils.Logging;
+
+namespace DHT.Desktop.Common {
+	static class DatabaseGui {
+		private static readonly Log Log = Log.ForType(typeof(DatabaseGui));
+
+		private const string DatabaseFileInitialName = "archive.dht";
+
+		private static readonly List<FileDialogFilter> DatabaseFileDialogFilter = new() {
+			new FileDialogFilter {
+				Name = "Discord History Tracker Database",
+				Extensions = { "dht" }
+			}
+		};
+
+		public static OpenFileDialog NewOpenDatabaseFileDialog() {
+			return new OpenFileDialog {
+				Title = "Open Database File",
+				InitialFileName = DatabaseFileInitialName,
+				Filters = DatabaseFileDialogFilter
+			};
+		}
+
+		public static SaveFileDialog NewOpenOrCreateDatabaseFileDialog() {
+			return new SaveFileDialog {
+				Title = "Open or Create Database File",
+				InitialFileName = DatabaseFileInitialName,
+				Filters = DatabaseFileDialogFilter
+			};
+		}
+
+		public static async Task<IDatabaseFile?> TryOpenOrCreateDatabaseFromPath(string path, Window window, Func<Task<bool>> checkCanUpgradeDatabase) {
+			IDatabaseFile? file = null;
+
+			try {
+				file = await SqliteDatabaseFile.OpenOrCreate(path, checkCanUpgradeDatabase);
+			} catch (InvalidDatabaseVersionException ex) {
+				await Dialog.ShowOk(window, "Database Error", "Database '" + Path.GetFileName(path) + "' appears to be corrupted (invalid version: " + ex.Version + ").");
+			} catch (DatabaseTooNewException ex) {
+				await Dialog.ShowOk(window, "Database Error", "Database '" + Path.GetFileName(path) + "' was opened in a newer version of DHT (database version " + ex.DatabaseVersion + ", app version " + ex.CurrentVersion + ").");
+			} catch (Exception ex) {
+				Log.Error(ex);
+				await Dialog.ShowOk(window, "Database Error", "Database '" + Path.GetFileName(path) + "' could not be opened:" + ex.Message);
+			}
+
+			return file;
+		}
+
+		public static async Task<DialogResult.YesNo> ShowCanUpgradeDatabaseDialog(Window window) {
+			return await Dialog.ShowYesNo(window, "Database Upgrade", "This database was created with an older version of DHT. If you proceed, the database will be upgraded and will no longer open in previous versions of DHT.\n\nPlease ensure you have a backup of the database. Do you want to proceed with the upgrade?");
+		}
+
+		public static async Task<DialogResult.YesNo> ShowCanUpgradeMultipleDatabaseDialog(Window window) {
+			return await Dialog.ShowYesNo(window, "Database Upgrade", "One or more databases were created with an older version of DHT. If you proceed, these databases will be upgraded and will no longer open in previous versions of DHT. Otherwise, these databases will be skipped.\n\nPlease ensure you have a backup of the databases. Do you want to proceed with the upgrade?");
+		}
+	}
+}

app/Desktop/Common/NumberValueConverter.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Globalization;
+using Avalonia.Data.Converters;
+
+namespace DHT.Desktop.Common {
+	sealed class NumberValueConverter : IValueConverter {
+		public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture) {
+			return string.Format(Program.Culture, "{0:n0}", value);
+		}
+
+		public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture) {
+			throw new NotSupportedException();
+		}
+	}
+}

app/Desktop/Common/TextFormat.cs

@@ -0,0 +1,19 @@
+namespace DHT.Desktop.Common {
+	static class TextFormat {
+		public static string Format(this int number) {
+			return number.ToString("N0", Program.Culture);
+		}
+
+		public static string Format(this long number) {
+			return number.ToString("N0", Program.Culture);
+		}
+
+		public static string Pluralize(this int number, string singular) {
+			return number.Format() + "\u00A0" + (number == 1 ? singular : singular + "s");
+		}
+
+		public static string Pluralize(this long number, string singular) {
+			return number.Format() + "\u00A0" + (number == 1 ? singular : singular + "s");
+		}
+	}
+}

app/Desktop/Desktop.csproj

@@ -0,0 +1,69 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <AssemblyName>DiscordHistoryTracker</AssemblyName>
+    <RootNamespace>DHT.Desktop</RootNamespace>
+    <PackageId>DiscordHistoryTracker</PackageId>
+    <Authors>chylex</Authors>
+    <Company>DiscordHistoryTracker</Company>
+    <Product>DiscordHistoryTracker</Product>
+    <ApplicationIcon>./Resources/icon.ico</ApplicationIcon>
+    <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
+    <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
+    <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>none</DebugType>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="0.10.13" />
+    <PackageReference Include="Avalonia.Desktop" Version="0.10.13" />
+    <PackageReference Include="Avalonia.Diagnostics" Version="0.10.13" Condition=" '$(Configuration)' == 'Debug' " />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Server\Server.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\Version.cs" Link="Version.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <AvaloniaResource Include="Resources/icon.ico" />
+    <EmbeddedResource Include="../Resources/Tracker/bootstrap.js">
+      <LogicalName>Tracker\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="../Resources/Tracker/scripts/**" Condition=" '$(Configuration)' == 'Debug' ">
+      <LogicalName>Tracker\scripts\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/scripts/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="$(ProjectDir)bin/.res/scripts/**" Condition=" '$(Configuration)' == 'Release' ">
+      <LogicalName>Tracker\scripts\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/scripts/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="../Resources/Tracker/styles/**">
+      <LogicalName>Tracker\styles\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Tracker/styles/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+    <EmbeddedResource Include="../Resources/Viewer/**">
+      <LogicalName>Viewer\%(RecursiveDir)%(Filename)%(Extension)</LogicalName>
+      <Link>Resources/Viewer/%(RecursiveDir)%(Filename)%(Extension)</Link>
+      <Visible>false</Visible>
+    </EmbeddedResource>
+  </ItemGroup>
+  <Target Name="MinifyResources" BeforeTargets="PrepareForBuild" Condition=" '$(Configuration)' == 'Release' ">
+    <ItemGroup>
+      <UpToDateCheckInput Include="$(ProjectDir)../Resources/Tracker/scripts/**" Visible="false" />
+    </ItemGroup>
+    <RemoveDir Directories="$(ProjectDir)bin/.res/scripts" />
+    <Exec Command="$(ProjectDir)../Resources/minify.py" WorkingDirectory="$(ProjectDir)../Resources" IgnoreExitCode="false" />
+  </Target>
+</Project>

app/Desktop/Dialogs/CheckBox/CheckBoxDialog.axaml

@@ -0,0 +1,61 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.CheckBox"
+        mc:Ignorable="d" d:DesignWidth="500"
+        x:Class="DHT.Desktop.Dialogs.CheckBox.CheckBoxDialog"
+        Title="{Binding Title}"
+        Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
+        Width="500" SizeToContent="Height" CanResize="False"
+        WindowStartupLocation="CenterOwner">
+
+    <Window.DataContext>
+        <namespace:CheckBoxDialogModel />
+    </Window.DataContext>
+
+    <Window.Styles>
+        <Style Selector="Panel.buttons">
+            <Setter Property="Margin" Value="0 20 0 0" />
+        </Style>
+        <Style Selector="Panel.buttons > WrapPanel.right">
+            <Setter Property="HorizontalAlignment" Value="Right" />
+        </Style>
+        <Style Selector="Panel.buttons Button">
+            <Setter Property="MinWidth" Value="80" />
+        </Style>
+        <Style Selector="Panel.buttons > WrapPanel.left Button">
+            <Setter Property="Margin" Value="0 0 8 0" />
+        </Style>
+        <Style Selector="Panel.buttons > WrapPanel.right Button">
+            <Setter Property="Margin" Value="8 0 0 0" />
+        </Style>
+    </Window.Styles>
+
+    <StackPanel Margin="20">
+        <ScrollViewer MaxHeight="400">
+            <ItemsControl Items="{Binding Items}">
+                <ItemsControl.ItemTemplate>
+                    <DataTemplate>
+                        <CheckBox IsChecked="{Binding Checked}">
+                            <Label>
+                                <TextBlock Text="{Binding Title}" TextWrapping="Wrap" />
+                            </Label>
+                        </CheckBox>
+                    </DataTemplate>
+                </ItemsControl.ItemTemplate>
+            </ItemsControl>
+        </ScrollViewer>
+        <Panel Classes="buttons">
+            <WrapPanel Classes="left">
+                <Button Command="{Binding SelectAll}" IsEnabled="{Binding !AreAllSelected}">Select All</Button>
+                <Button Command="{Binding SelectNone}" IsEnabled="{Binding !AreNoneSelected}">Select None</Button>
+            </WrapPanel>
+            <WrapPanel Classes="right">
+                <Button Click="ClickOk">OK</Button>
+                <Button Click="ClickCancel">Cancel</Button>
+            </WrapPanel>
+        </Panel>
+    </StackPanel>
+
+</Window>

app/Desktop/Dialogs/CheckBox/CheckBoxDialog.axaml.cs

@@ -0,0 +1,31 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using DHT.Desktop.Dialogs.Message;
+
+namespace DHT.Desktop.Dialogs.CheckBox {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class CheckBoxDialog : Window {
+		public CheckBoxDialog() {
+			InitializeComponent();
+			#if DEBUG
+			this.AttachDevTools();
+			#endif
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public void ClickOk(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.OkCancel.Ok);
+		}
+
+		public void ClickCancel(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.OkCancel.Cancel);
+		}
+	}
+}
+

app/Desktop/Dialogs/CheckBox/CheckBoxDialogModel.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Dialogs.CheckBox {
+	class CheckBoxDialogModel : BaseModel {
+		public string Title { get; init; } = "";
+
+		private IReadOnlyList<CheckBoxItem> items = Array.Empty<CheckBoxItem>();
+
+		public IReadOnlyList<CheckBoxItem> Items {
+			get => items;
+
+			protected set {
+				foreach (var item in items) {
+					item.PropertyChanged -= OnItemPropertyChanged;
+				}
+
+				items = value;
+
+				foreach (var item in items) {
+					item.PropertyChanged += OnItemPropertyChanged;
+				}
+			}
+		}
+
+		private bool pauseCheckEvents = false;
+
+		public bool AreAllSelected => Items.All(static item => item.Checked);
+		public bool AreNoneSelected => Items.All(static item => !item.Checked);
+
+		public void SelectAll() => SetAllChecked(true);
+		public void SelectNone() => SetAllChecked(false);
+
+		private void SetAllChecked(bool isChecked) {
+			pauseCheckEvents = true;
+
+			foreach (var item in Items) {
+				item.Checked = isChecked;
+			}
+
+			pauseCheckEvents = false;
+			UpdateBulkButtons();
+		}
+
+		private void UpdateBulkButtons() {
+			OnPropertyChanged(nameof(AreAllSelected));
+			OnPropertyChanged(nameof(AreNoneSelected));
+		}
+
+		private void OnItemPropertyChanged(object? sender, PropertyChangedEventArgs e) {
+			if (!pauseCheckEvents && e.PropertyName == nameof(CheckBoxItem.Checked)) {
+				UpdateBulkButtons();
+			}
+		}
+	}
+
+	sealed class CheckBoxDialogModel<T> : CheckBoxDialogModel {
+		public new IReadOnlyList<CheckBoxItem<T>> Items { get; }
+
+		public IEnumerable<CheckBoxItem<T>> SelectedItems => Items.Where(static item => item.Checked);
+
+		public CheckBoxDialogModel(IEnumerable<CheckBoxItem<T>> items) {
+			this.Items = new List<CheckBoxItem<T>>(items);
+			base.Items = this.Items;
+		}
+	}
+}

app/Desktop/Dialogs/CheckBox/CheckBoxItem.cs

@@ -0,0 +1,24 @@
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Dialogs.CheckBox {
+	class CheckBoxItem : BaseModel {
+		public string Title { get; init; } = "";
+		public object? Item { get; init; } = null;
+
+		private bool isChecked = false;
+
+		public bool Checked {
+			get => isChecked;
+			set => Change(ref isChecked, value);
+		}
+	}
+
+	sealed class CheckBoxItem<T> : CheckBoxItem {
+		public new T Item { get; }
+
+		public CheckBoxItem(T item) {
+			this.Item = item;
+			base.Item = item;
+		}
+	}
+}

app/Desktop/Dialogs/Message/Dialog.cs

@@ -0,0 +1,74 @@
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Threading;
+
+namespace DHT.Desktop.Dialogs.Message {
+	static class Dialog {
+		public static async Task ShowOk(Window owner, string title, string message) {
+			if (!Dispatcher.UIThread.CheckAccess()) {
+				await Dispatcher.UIThread.InvokeAsync(() => ShowOk(owner, title, message));
+				return;
+			}
+
+			await new MessageDialog {
+				DataContext = new MessageDialogModel {
+					Title = title,
+					Message = message,
+					IsOkVisible = true
+				}
+			}.ShowDialog<DialogResult.All>(owner);
+		}
+
+		public static async Task<DialogResult.OkCancel> ShowOkCancel(Window owner, string title, string message) {
+			if (!Dispatcher.UIThread.CheckAccess()) {
+				return await Dispatcher.UIThread.InvokeAsync(() => ShowOkCancel(owner, title, message));
+			}
+
+			var result = await new MessageDialog {
+				DataContext = new MessageDialogModel {
+					Title = title,
+					Message = message,
+					IsOkVisible = true,
+					IsCancelVisible = true
+				}
+			}.ShowDialog<DialogResult.All?>(owner);
+
+			return result.ToOkCancel();
+		}
+
+		public static async Task<DialogResult.YesNo> ShowYesNo(Window owner, string title, string message) {
+			if (!Dispatcher.UIThread.CheckAccess()) {
+				return await Dispatcher.UIThread.InvokeAsync(() => ShowYesNo(owner, title, message));
+			}
+
+			var result = await new MessageDialog {
+				DataContext = new MessageDialogModel {
+					Title = title,
+					Message = message,
+					IsYesVisible = true,
+					IsNoVisible = true
+				}
+			}.ShowDialog<DialogResult.All?>(owner);
+
+			return result.ToYesNo();
+		}
+
+		public static async Task<DialogResult.YesNoCancel> ShowYesNoCancel(Window owner, string title, string message) {
+			if (!Dispatcher.UIThread.CheckAccess()) {
+				return await Dispatcher.UIThread.InvokeAsync(() => ShowYesNoCancel(owner, title, message));
+			}
+
+			var result = await new MessageDialog {
+				DataContext = new MessageDialogModel {
+					Title = title,
+					Message = message,
+					IsYesVisible = true,
+					IsNoVisible = true,
+					IsCancelVisible = true
+				}
+			}.ShowDialog<DialogResult.All?>(owner);
+
+			return result.ToYesNoCancel();
+		}
+	}
+}

app/Desktop/Dialogs/Message/DialogResult.cs

@@ -0,0 +1,59 @@
+using System;
+
+namespace DHT.Desktop.Dialogs.Message {
+	static class DialogResult {
+		public enum All {
+			Ok,
+			Yes,
+			No,
+			Cancel
+		}
+
+		public enum OkCancel {
+			Closed,
+			Ok,
+			Cancel
+		}
+
+		public enum YesNo {
+			Closed,
+			Yes,
+			No
+		}
+
+		public enum YesNoCancel {
+			Closed,
+			Yes,
+			No,
+			Cancel
+		}
+
+		public static OkCancel ToOkCancel(this All? result) {
+			return result switch {
+				null       => OkCancel.Closed,
+				All.Ok     => OkCancel.Ok,
+				All.Cancel => OkCancel.Cancel,
+				_          => throw new ArgumentException("Cannot convert dialog result " + result + " to ok/cancel.")
+			};
+		}
+
+		public static YesNo ToYesNo(this All? result) {
+			return result switch {
+				null    => YesNo.Closed,
+				All.Yes => YesNo.Yes,
+				All.No  => YesNo.No,
+				_       => throw new ArgumentException("Cannot convert dialog result " + result + " to yes/no.")
+			};
+		}
+
+		public static YesNoCancel ToYesNoCancel(this All? result) {
+			return result switch {
+				null       => YesNoCancel.Closed,
+				All.Yes    => YesNoCancel.Yes,
+				All.No     => YesNoCancel.No,
+				All.Cancel => YesNoCancel.Cancel,
+				_          => throw new ArgumentException("Cannot convert dialog result " + result + " to yes/no/cancel.")
+			};
+		}
+	}
+}

app/Desktop/Dialogs/Message/MessageDialog.axaml

@@ -0,0 +1,42 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Message"
+        mc:Ignorable="d" d:DesignWidth="500"
+        x:Class="DHT.Desktop.Dialogs.Message.MessageDialog"
+        Title="{Binding Title}"
+        Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
+        Width="500" SizeToContent="Height" CanResize="False"
+        WindowStartupLocation="CenterOwner">
+
+    <Window.DataContext>
+        <namespace:MessageDialogModel />
+    </Window.DataContext>
+
+    <Window.Styles>
+        <Style Selector="TextBlock">
+            <Setter Property="FontSize" Value="15" />
+            <Setter Property="TextWrapping" Value="Wrap" />
+        </Style>
+        <Style Selector="WrapPanel">
+            <Setter Property="HorizontalAlignment" Value="Right" />
+            <Setter Property="Margin" Value="0 8 0 0" />
+        </Style>
+        <Style Selector="Button">
+            <Setter Property="Margin" Value="8 0 0 0" />
+            <Setter Property="MinWidth" Value="80" />
+        </Style>
+    </Window.Styles>
+
+    <StackPanel Margin="20">
+        <TextBlock Text="{Binding Message}" />
+        <WrapPanel>
+            <Button Click="ClickOk" IsVisible="{Binding IsOkVisible}">OK</Button>
+            <Button Click="ClickYes" IsVisible="{Binding IsYesVisible}">Yes</Button>
+            <Button Click="ClickNo" IsVisible="{Binding IsNoVisible}">No</Button>
+            <Button Click="ClickCancel" IsVisible="{Binding IsCancelVisible}">Cancel</Button>
+        </WrapPanel>
+    </StackPanel>
+
+</Window>

app/Desktop/Dialogs/Message/MessageDialog.axaml.cs

@@ -0,0 +1,37 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Dialogs.Message {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class MessageDialog : Window {
+		public MessageDialog() {
+			InitializeComponent();
+			#if DEBUG
+			this.AttachDevTools();
+			#endif
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public void ClickOk(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.All.Ok);
+		}
+
+		public void ClickYes(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.All.Yes);
+		}
+
+		public void ClickNo(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.All.No);
+		}
+
+		public void ClickCancel(object? sender, RoutedEventArgs e) {
+			Close(DialogResult.All.Cancel);
+		}
+	}
+}

app/Desktop/Dialogs/Message/MessageDialogModel.cs

@@ -0,0 +1,11 @@
+namespace DHT.Desktop.Dialogs.Message {
+	sealed class MessageDialogModel {
+		public string Title { get; init; } = "";
+		public string Message { get; init; } = "";
+
+		public bool IsOkVisible { get; init; } = false;
+		public bool IsYesVisible { get; init; } = false;
+		public bool IsNoVisible { get; init; } = false;
+		public bool IsCancelVisible { get; init; } = false;
+	}
+}

app/Desktop/Dialogs/Progress/IProgressCallback.cs

@@ -0,0 +1,7 @@
+using System.Threading.Tasks;
+
+namespace DHT.Desktop.Dialogs.Progress {
+	interface IProgressCallback {
+		Task Update(string message, int finishedItems, int totalItems);
+	}
+}

app/Desktop/Dialogs/Progress/ProgressDialog.axaml

@@ -0,0 +1,42 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:namespace="clr-namespace:DHT.Desktop.Dialogs.Progress"
+        mc:Ignorable="d" d:DesignWidth="500"
+        x:Class="DHT.Desktop.Dialogs.Progress.ProgressDialog"
+        Title="{Binding Title}"
+        Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
+        Opened="Loaded"
+        Closing="OnClosing"
+        Width="500" SizeToContent="Height" CanResize="False"
+        WindowStartupLocation="CenterOwner">
+
+    <Window.DataContext>
+        <namespace:ProgressDialogModel />
+    </Window.DataContext>
+
+    <Window.Styles>
+        <Style Selector="TextBlock">
+            <Setter Property="FontSize" Value="15" />
+            <Setter Property="TextWrapping" Value="Wrap" />
+        </Style>
+        <Style Selector="TextBlock.items">
+            <Setter Property="Margin" Value="10 0 0 0" />
+            <Setter Property="TextAlignment" Value="Right" />
+            <Setter Property="TextWrapping" Value="NoWrap" />
+        </Style>
+        <Style Selector="ProgressBar">
+            <Setter Property="Margin" Value="0 15 0 0" />
+        </Style>
+    </Window.Styles>
+
+    <StackPanel Margin="20">
+        <DockPanel>
+            <TextBlock DockPanel.Dock="Right" Text="{Binding Items}" Classes="items" />
+            <TextBlock DockPanel.Dock="Left" Text="{Binding Message}" />
+        </DockPanel>
+        <ProgressBar Value="{Binding Progress}" />
+    </StackPanel>
+
+</Window>

app/Desktop/Dialogs/Progress/ProgressDialog.axaml.cs

@@ -0,0 +1,40 @@
+using System;
+using System.ComponentModel;
+using System.Diagnostics.CodeAnalysis;
+using System.Threading.Tasks;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Dialogs.Progress {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class ProgressDialog : Window {
+		private bool isFinished = false;
+
+		public ProgressDialog() {
+			InitializeComponent();
+			#if DEBUG
+			this.AttachDevTools();
+			#endif
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public void OnClosing(object? sender, CancelEventArgs e) {
+			e.Cancel = !isFinished;
+		}
+
+		public void Loaded(object? sender, EventArgs e) {
+			if (DataContext is ProgressDialogModel model) {
+				Task.Run(model.StartTask).ContinueWith(OnFinished, TaskScheduler.FromCurrentSynchronizationContext());
+			}
+		}
+
+		private void OnFinished(Task task) {
+			isFinished = true;
+			Close();
+		}
+	}
+}

app/Desktop/Dialogs/Progress/ProgressDialogModel.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Threading.Tasks;
+using Avalonia.Threading;
+using DHT.Desktop.Common;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Dialogs.Progress {
+	sealed class ProgressDialogModel : BaseModel {
+		public string Title { get; init; } = "";
+
+		private string message = "";
+
+		public string Message {
+			get => message;
+			private set => Change(ref message, value);
+		}
+
+		private string items = "";
+
+		public string Items {
+			get => items;
+			private set => Change(ref items, value);
+		}
+
+		private int progress = 0;
+
+		public int Progress {
+			get => progress;
+			private set => Change(ref progress, value);
+		}
+
+		private readonly TaskRunner? task;
+
+		[Obsolete("Designer")]
+		public ProgressDialogModel() {}
+
+		public ProgressDialogModel(TaskRunner task) {
+			this.task = task;
+		}
+
+		internal async Task StartTask() {
+			if (task != null) {
+				await task(new Callback(this));
+			}
+		}
+
+		public delegate Task TaskRunner(IProgressCallback callback);
+
+		private sealed class Callback : IProgressCallback {
+			private readonly ProgressDialogModel model;
+
+			public Callback(ProgressDialogModel model) {
+				this.model = model;
+			}
+
+			async Task IProgressCallback.Update(string message, int finishedItems, int totalItems) {
+				await Dispatcher.UIThread.InvokeAsync(() => {
+					model.Message = message;
+					model.Items = finishedItems.Format() + " / " + totalItems.Format();
+					model.Progress = 100 * finishedItems / totalItems;
+				});
+			}
+		}
+	}
+}

app/Desktop/Discord/DiscordAppSettings.cs

@@ -0,0 +1,119 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text.Json;
+using System.Threading.Tasks;
+using DHT.Utils.Logging;
+using static System.Environment.SpecialFolder;
+using static System.Environment.SpecialFolderOption;
+
+namespace DHT.Desktop.Discord {
+	static class DiscordAppSettings {
+		private static readonly Log Log = Log.ForType(typeof(DiscordAppSettings));
+
+		private const string JsonKeyDevTools = "DANGEROUS_ENABLE_DEVTOOLS_ONLY_ENABLE_IF_YOU_KNOW_WHAT_YOURE_DOING";
+
+		public static string JsonFilePath { get; }
+		private static string JsonBackupFilePath { get; }
+
+		[SuppressMessage("ReSharper", "ConvertIfStatementToConditionalTernaryExpression")]
+		static DiscordAppSettings() {
+			string rootFolder;
+
+			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
+				rootFolder = Path.Combine(Environment.GetFolderPath(ApplicationData, DoNotVerify), "Discord");
+			}
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+				rootFolder = Path.Combine(Environment.GetFolderPath(UserProfile, DoNotVerify), "Library", "Application Support", "Discord");
+			}
+			else {
+				rootFolder = Path.Combine(Environment.GetFolderPath(ApplicationData, DoNotVerify), "discord");
+			}
+
+			JsonFilePath = Path.Combine(rootFolder, "settings.json");
+			JsonBackupFilePath = JsonFilePath + ".bak";
+		}
+
+		public static async Task<bool?> AreDevToolsEnabled() {
+			try {
+				return AreDevToolsEnabled(await ReadSettingsJson());
+			} catch (Exception) {
+				return null;
+			}
+		}
+
+		private static bool AreDevToolsEnabled(Dictionary<string, object?> json) {
+			return json.TryGetValue(JsonKeyDevTools, out var value) && value is JsonElement { ValueKind: JsonValueKind.True };
+		}
+
+		public static async Task<SettingsJsonResult> ConfigureDevTools(bool enable) {
+			Dictionary<string, object?> json;
+
+			try {
+				json = await ReadSettingsJson();
+			} catch (FileNotFoundException) {
+				return SettingsJsonResult.FileNotFound;
+			} catch (JsonException) {
+				return SettingsJsonResult.InvalidJson;
+			} catch (Exception e) {
+				Log.Error(e);
+				return SettingsJsonResult.ReadError;
+			}
+
+			if (enable == AreDevToolsEnabled(json)) {
+				return SettingsJsonResult.AlreadySet;
+			}
+
+			if (enable) {
+				json[JsonKeyDevTools] = true;
+			}
+			else {
+				json.Remove(JsonKeyDevTools);
+			}
+
+			try {
+				if (!File.Exists(JsonBackupFilePath)) {
+					File.Copy(JsonFilePath, JsonBackupFilePath);
+				}
+
+				await WriteSettingsJson(json);
+			} catch (Exception e) {
+				Log.Error("An error occurred when writing settings file.");
+				Log.Error(e);
+
+				if (File.Exists(JsonBackupFilePath)) {
+					try {
+						File.Move(JsonBackupFilePath, JsonFilePath, true);
+						Log.Info("Restored settings file from backup.");
+					} catch (Exception e2) {
+						Log.Error("Cannot restore settings file from backup.");
+						Log.Error(e2);
+					}
+				}
+
+				return SettingsJsonResult.WriteError;
+			}
+
+			try {
+				File.Delete(JsonBackupFilePath);
+			} catch (Exception e) {
+				Log.Error("Cannot delete backup file.");
+				Log.Error(e);
+			}
+
+			return SettingsJsonResult.Success;
+		}
+
+		private static async Task<Dictionary<string, object?>> ReadSettingsJson() {
+			await using var stream = new FileStream(JsonFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
+			return await JsonSerializer.DeserializeAsync<Dictionary<string, object?>?>(stream) ?? throw new JsonException();
+		}
+
+		private static async Task WriteSettingsJson(Dictionary<string, object?> json) {
+			await using var stream = new FileStream(JsonFilePath, FileMode.Truncate, FileAccess.Write, FileShare.None);
+			await JsonSerializer.SerializeAsync(stream, json, new JsonSerializerOptions { WriteIndented = true });
+		}
+	}
+}

app/Desktop/Discord/SettingsJsonResult.cs

@@ -0,0 +1,10 @@
+namespace DHT.Desktop.Discord {
+	enum SettingsJsonResult {
+		Success,
+		AlreadySet,
+		FileNotFound,
+		ReadError,
+		InvalidJson,
+		WriteError
+	}
+}

app/Desktop/Main/AboutWindow.axaml

@@ -0,0 +1,67 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:main="clr-namespace:DHT.Desktop.Main"
+        mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="295"
+        x:Class="DHT.Desktop.Main.AboutWindow"
+        Title="About Discord History Tracker"
+        Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
+        Width="480" Height="295" CanResize="False"
+        WindowStartupLocation="CenterOwner">
+
+    <Design.DataContext>
+        <main:AboutWindowModel />
+    </Design.DataContext>
+
+    <Window.Styles>
+        <Style Selector="StackPanel">
+            <Setter Property="Orientation" Value="Horizontal" />
+            <Setter Property="Spacing" Value="5" />
+        </Style>
+        <Style Selector="TextBlock">
+            <Setter Property="TextWrapping" Value="Wrap" />
+            <Setter Property="VerticalAlignment" Value="Center" />
+        </Style>
+        <Style Selector="Grid > Button">
+            <Setter Property="Margin" Value="0 4" />
+            <Setter Property="Padding" Value="8 4" />
+            <Setter Property="HorizontalAlignment" Value="Stretch" />
+        </Style>
+    </Window.Styles>
+
+    <StackPanel Orientation="Vertical" Margin="20" Spacing="12">
+
+        <TextBlock VerticalAlignment="Center">
+            Discord History Tracker was created by chylex and released under the MIT license.
+        </TextBlock>
+
+        <StackPanel>
+            <Button Command="{Binding ShowOfficialWebsite}">Official Website</Button>
+            <Button Command="{Binding ShowSourceCode}">Source Code</Button>
+        </StackPanel>
+
+        <Grid RowDefinitions="Auto,5,Auto,Auto,Auto,Auto,Auto,Auto" ColumnDefinitions="175,125,*" Margin="0 10 0 0">
+            <TextBlock Grid.Row="0" Grid.Column="0" FontWeight="Bold">Third-Party Software</TextBlock>
+            <TextBlock Grid.Row="0" Grid.Column="1" FontWeight="Bold">License</TextBlock>
+            <TextBlock Grid.Row="0" Grid.Column="2" FontWeight="Bold">Link</TextBlock>
+
+            <TextBlock Grid.Row="2" Grid.Column="0">.NET 5</TextBlock>
+            <TextBlock Grid.Row="2" Grid.Column="1">MIT</TextBlock>
+            <Button Grid.Row="2" Grid.Column="2" Command="{Binding ShowLibraryNetCore}">GitHub</Button>
+
+            <TextBlock Grid.Row="3" Grid.Column="0">Avalonia</TextBlock>
+            <TextBlock Grid.Row="3" Grid.Column="1">MIT</TextBlock>
+            <Button Grid.Row="3" Grid.Column="2" Command="{Binding ShowLibraryAvalonia}">NuGet</Button>
+
+            <TextBlock Grid.Row="4" Grid.Column="0">SQLite</TextBlock>
+            <TextBlock Grid.Row="4" Grid.Column="1">Public Domain</TextBlock>
+            <Button Grid.Row="4" Grid.Column="2" Command="{Binding ShowLibrarySqlite}">Official Website</Button>
+
+            <TextBlock Grid.Row="5" Grid.Column="0">Microsoft.Data.Sqlite</TextBlock>
+            <TextBlock Grid.Row="5" Grid.Column="1">Apache-2.0</TextBlock>
+            <Button Grid.Row="5" Grid.Column="2" Command="{Binding ShowLibrarySqliteAdoNet}">NuGet</Button>
+        </Grid>
+
+    </StackPanel>
+</Window>

app/Desktop/Main/AboutWindow.axaml.cs

@@ -0,0 +1,20 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class AboutWindow : Window {
+		public AboutWindow() {
+			InitializeComponent();
+			#if DEBUG
+			this.AttachDevTools();
+			#endif
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/AboutWindowModel.cs

@@ -0,0 +1,33 @@
+using System.Diagnostics;
+
+namespace DHT.Desktop.Main {
+	sealed class AboutWindowModel {
+		public void ShowOfficialWebsite() {
+			OpenUrl("https://dht.chylex.com");
+		}
+
+		public void ShowSourceCode() {
+			OpenUrl("https://github.com/chylex/Discord-History-Tracker");
+		}
+
+		public void ShowLibraryAvalonia() {
+			OpenUrl("https://www.nuget.org/packages/Avalonia");
+		}
+
+		public void ShowLibrarySqlite() {
+			OpenUrl("https://www.sqlite.org");
+		}
+
+		public void ShowLibrarySqliteAdoNet() {
+			OpenUrl("https://www.nuget.org/packages/Microsoft.Data.Sqlite");
+		}
+
+		public void ShowLibraryNetCore() {
+			OpenUrl("https://github.com/dotnet/core");
+		}
+
+		private static void OpenUrl(string url) {
+			Process.Start(new ProcessStartInfo { FileName = url, UseShellExecute = true });
+		}
+	}
+}

app/Desktop/Main/Controls/FilterPanel.axaml

@@ -0,0 +1,60 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             mc:Ignorable="d"
+             x:Class="DHT.Desktop.Main.Controls.FilterPanel">
+
+    <Design.DataContext>
+        <controls:FilterPanelModel />
+    </Design.DataContext>
+
+    <UserControl.Styles>
+        <Style Selector="WrapPanel > StackPanel">
+            <Setter Property="Margin" Value="0 20 40 0" />
+            <Setter Property="Spacing" Value="4" />
+        </Style>
+        <Style Selector="WrapPanel > StackPanel:nth-last-child(1)">
+            <Setter Property="Margin" Value="0 20 0 0" />
+        </Style>
+        <Style Selector="Grid > Label">
+            <Setter Property="VerticalAlignment" Value="Center" />
+        </Style>
+        <Style Selector="Grid > CalendarDatePicker">
+            <Setter Property="CornerRadius" Value="0" />
+            <Setter Property="HorizontalAlignment" Value="Stretch" />
+            <Setter Property="HorizontalContentAlignment" Value="Center" />
+            <Setter Property="VerticalAlignment" Value="Center" />
+            <Setter Property="VerticalContentAlignment" Value="Center" />
+            <Setter Property="IsTodayHighlighted" Value="True" />
+            <Setter Property="SelectedDateFormat" Value="Short" />
+        </Style>
+        <Style Selector="Button">
+            <Setter Property="Margin" Value="0 0 0 8" />
+        </Style>
+    </UserControl.Styles>
+
+    <WrapPanel>
+        <StackPanel>
+            <CheckBox IsChecked="{Binding FilterByDate}">Filter by Date</CheckBox>
+            <Grid ColumnDefinitions="Auto, 4, 125" RowDefinitions="Auto, 4, Auto" Margin="4 0">
+                <Label Grid.Row="0" Grid.Column="0">From:</Label>
+                <CalendarDatePicker Grid.Row="0" Grid.Column="2" x:Name="StartDatePicker" IsEnabled="{Binding FilterByDate}" SelectedDateChanged="CalendarDatePicker_OnSelectedDateChanged" />
+                <Label Grid.Row="2" Grid.Column="0">To:</Label>
+                <CalendarDatePicker Grid.Row="2" Grid.Column="2" x:Name="EndDatePicker" IsEnabled="{Binding FilterByDate}" SelectedDateChanged="CalendarDatePicker_OnSelectedDateChanged" />
+            </Grid>
+        </StackPanel>
+        <StackPanel>
+            <CheckBox IsChecked="{Binding FilterByChannel}">Filter by Channel</CheckBox>
+            <Button Command="{Binding OpenChannelFilterDialog}" IsEnabled="{Binding FilterByChannel}">Select Channels...</Button>
+            <TextBlock Text="{Binding ChannelFilterLabel}" />
+        </StackPanel>
+        <StackPanel>
+            <CheckBox IsChecked="{Binding FilterByUser}">Filter by User</CheckBox>
+            <Button Command="{Binding OpenUserFilterDialog}" IsEnabled="{Binding FilterByUser}">Select Users...</Button>
+            <TextBlock Text="{Binding UserFilterLabel}" />
+        </StackPanel>
+    </WrapPanel>
+
+</UserControl>

app/Desktop/Main/Controls/FilterPanel.axaml.cs

@@ -0,0 +1,34 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Controls {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class FilterPanel : UserControl {
+		private CalendarDatePicker StartDatePicker => this.FindControl<CalendarDatePicker>("StartDatePicker");
+		private CalendarDatePicker EndDatePicker => this.FindControl<CalendarDatePicker>("EndDatePicker");
+
+		public FilterPanel() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+
+			var culture = Program.Culture;
+			foreach (var picker in new CalendarDatePicker[] { StartDatePicker, EndDatePicker }) {
+				picker.FirstDayOfWeek = culture.DateTimeFormat.FirstDayOfWeek;
+				picker.SelectedDateFormat = CalendarDatePickerFormat.Custom;
+				picker.CustomDateFormatString = culture.DateTimeFormat.ShortDatePattern;
+				picker.Watermark = culture.DateTimeFormat.ShortDatePattern;
+			}
+		}
+
+		public void CalendarDatePicker_OnSelectedDateChanged(object? sender, SelectionChangedEventArgs e) {
+			if (DataContext is FilterPanelModel model) {
+				model.StartDate = StartDatePicker.SelectedDate;
+				model.EndDate = EndDatePicker.SelectedDate;
+			}
+		}
+	}
+}

app/Desktop/Main/Controls/FilterPanelModel.cs

@@ -0,0 +1,241 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Common;
+using DHT.Desktop.Dialogs.CheckBox;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Server.Data;
+using DHT.Server.Data.Filters;
+using DHT.Server.Database;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Controls {
+	sealed class FilterPanelModel : BaseModel, IDisposable {
+		private static readonly HashSet<string> FilterProperties = new () {
+			nameof(FilterByDate),
+			nameof(StartDate),
+			nameof(EndDate),
+			nameof(FilterByChannel),
+			nameof(IncludedChannels),
+			nameof(FilterByUser),
+			nameof(IncludedUsers)
+		};
+
+		public event PropertyChangedEventHandler? FilterPropertyChanged;
+
+		public bool HasAnyFilters => FilterByDate || FilterByChannel || FilterByUser;
+
+		private bool filterByDate = false;
+		private DateTime? startDate = null;
+		private DateTime? endDate = null;
+		private bool filterByChannel = false;
+		private HashSet<ulong>? includedChannels = null;
+		private bool filterByUser = false;
+		private HashSet<ulong>? includedUsers = null;
+
+		public bool FilterByDate {
+			get => filterByDate;
+			set => Change(ref filterByDate, value);
+		}
+
+		public DateTime? StartDate {
+			get => startDate;
+			set => Change(ref startDate, value);
+		}
+
+		public DateTime? EndDate {
+			get => endDate;
+			set => Change(ref endDate, value);
+		}
+
+		public bool FilterByChannel {
+			get => filterByChannel;
+			set => Change(ref filterByChannel, value);
+		}
+
+		public HashSet<ulong> IncludedChannels {
+			get => includedChannels ?? db.GetAllChannels().Select(static channel => channel.Id).ToHashSet();
+			set => Change(ref includedChannels, value);
+		}
+
+		public bool FilterByUser {
+			get => filterByUser;
+			set => Change(ref filterByUser, value);
+		}
+
+		public HashSet<ulong> IncludedUsers {
+			get => includedUsers ?? db.GetAllUsers().Select(static user => user.Id).ToHashSet();
+			set => Change(ref includedUsers, value);
+		}
+
+		private string channelFilterLabel = "";
+
+		public string ChannelFilterLabel {
+			get => channelFilterLabel;
+			set => Change(ref channelFilterLabel, value);
+		}
+
+		private string userFilterLabel = "";
+
+		public string UserFilterLabel {
+			get => userFilterLabel;
+			set => Change(ref userFilterLabel, value);
+		}
+
+		private readonly Window window;
+		private readonly IDatabaseFile db;
+
+		[Obsolete("Designer")]
+		public FilterPanelModel() : this(null!, DummyDatabaseFile.Instance) {}
+
+		public FilterPanelModel(Window window, IDatabaseFile db) {
+			this.window = window;
+			this.db = db;
+
+			UpdateChannelFilterLabel();
+			UpdateUserFilterLabel();
+
+			PropertyChanged += OnPropertyChanged;
+			db.Statistics.PropertyChanged += OnDbStatisticsChanged;
+		}
+
+		public void Dispose() {
+			db.Statistics.PropertyChanged -= OnDbStatisticsChanged;
+		}
+
+		private void OnPropertyChanged(object? sender, PropertyChangedEventArgs e) {
+			if (e.PropertyName != null && FilterProperties.Contains(e.PropertyName)) {
+				FilterPropertyChanged?.Invoke(sender, e);
+			}
+
+			if (e.PropertyName is nameof(FilterByChannel) or nameof(IncludedChannels)) {
+				UpdateChannelFilterLabel();
+			}
+			else if (e.PropertyName is nameof(FilterByUser) or nameof(IncludedUsers)) {
+				UpdateUserFilterLabel();
+			}
+		}
+
+		private void OnDbStatisticsChanged(object? sender, PropertyChangedEventArgs e) {
+			if (e.PropertyName == nameof(DatabaseStatistics.TotalChannels)) {
+				UpdateChannelFilterLabel();
+			}
+			else if (e.PropertyName == nameof(DatabaseStatistics.TotalUsers)) {
+				UpdateUserFilterLabel();
+			}
+		}
+
+		public async void OpenChannelFilterDialog() {
+			var servers = db.GetAllServers().ToDictionary(static server => server.Id);
+			var items = new List<CheckBoxItem<ulong>>();
+			var included = IncludedChannels;
+
+			foreach (var channel in db.GetAllChannels()) {
+				var channelId = channel.Id;
+				var channelName = channel.Name;
+
+				string title;
+				if (servers.TryGetValue(channel.Server, out var server)) {
+					var titleBuilder = new StringBuilder();
+					var serverType = server.Type;
+
+					titleBuilder.Append('[')
+					            .Append(ServerTypes.ToString(serverType))
+					            .Append("] ");
+
+					if (serverType == ServerType.DirectMessage) {
+						titleBuilder.Append(channelName);
+					}
+					else {
+						titleBuilder.Append(server.Name)
+						            .Append(" - ")
+						            .Append(channelName);
+					}
+
+					title = titleBuilder.ToString();
+				}
+				else {
+					title = channelName;
+				}
+
+				items.Add(new CheckBoxItem<ulong>(channelId) {
+					Title = title,
+					Checked = included.Contains(channelId)
+				});
+			}
+
+			var result = await OpenIdFilterDialog(window, "Included Channels", items);
+			if (result != null) {
+				IncludedChannels = result;
+			}
+		}
+
+		public async void OpenUserFilterDialog() {
+			var items = new List<CheckBoxItem<ulong>>();
+			var included = IncludedUsers;
+
+			foreach (var user in db.GetAllUsers()) {
+				var name = user.Name;
+				var discriminator = user.Discriminator;
+
+				items.Add(new CheckBoxItem<ulong>(user.Id) {
+					Title = discriminator == null ? name : name + " #" + discriminator,
+					Checked = included.Contains(user.Id)
+				});
+			}
+
+			var result = await OpenIdFilterDialog(window, "Included Users", items);
+			if (result != null) {
+				IncludedUsers = result;
+			}
+		}
+
+		private void UpdateChannelFilterLabel() {
+			long total = db.Statistics.TotalChannels;
+			long included = FilterByChannel ? IncludedChannels.Count : total;
+			ChannelFilterLabel = "Selected " + included.Format() + " / " + total.Pluralize("channel") + ".";
+		}
+
+		private void UpdateUserFilterLabel() {
+			long total = db.Statistics.TotalUsers;
+			long included = FilterByUser ? IncludedUsers.Count : total;
+			UserFilterLabel = "Selected " + included.Format() + " / " + total.Pluralize("user") + ".";
+		}
+
+		public MessageFilter CreateFilter() {
+			MessageFilter filter = new();
+
+			if (FilterByDate) {
+				filter.StartDate = StartDate;
+				filter.EndDate = EndDate;
+			}
+
+			if (FilterByChannel) {
+				filter.ChannelIds = new HashSet<ulong>(IncludedChannels);
+			}
+
+			if (FilterByUser) {
+				filter.UserIds = new HashSet<ulong>(IncludedUsers);
+			}
+
+			return filter;
+		}
+
+		private static async Task<HashSet<ulong>?> OpenIdFilterDialog(Window window, string title, List<CheckBoxItem<ulong>> items) {
+			items.Sort(static (item1, item2) => item1.Title.CompareTo(item2.Title));
+
+			var model = new CheckBoxDialogModel<ulong>(items) {
+				Title = title
+			};
+
+			var dialog = new CheckBoxDialog { DataContext = model };
+			var result = await dialog.ShowDialog<DialogResult.OkCancel>(window);
+
+			return result == DialogResult.OkCancel.Ok ? model.SelectedItems.Select(static item => item.Item).ToHashSet() : null;
+		}
+	}
+}

app/Desktop/Main/Controls/ServerConfigurationPanel.axaml

@@ -0,0 +1,50 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             mc:Ignorable="d"
+             x:Class="DHT.Desktop.Main.Controls.ServerConfigurationPanel">
+
+    <Design.DataContext>
+        <controls:ServerConfigurationPanelModel />
+    </Design.DataContext>
+
+    <UserControl.Styles>
+        <Style Selector="TextBox">
+            <Setter Property="FontFamily" Value="Consolas,Courier" />
+            <Setter Property="FontSize" Value="15" />
+        </Style>
+        <Style Selector="WrapPanel > StackPanel">
+            <Setter Property="Orientation" Value="Vertical" />
+            <Setter Property="Margin" Value="0 0 10 10" />
+        </Style>
+    </UserControl.Styles>
+
+    <StackPanel>
+        <Button Command="{Binding OnClickToggleServerButton}" Content="{Binding ToggleServerButtonText}" IsEnabled="{Binding IsToggleServerButtonEnabled}" />
+        <TextBlock TextWrapping="Wrap" Margin="0 15">
+            The following settings determine how the tracking script communicates with this application. If you change them, you will have to copy and apply the tracking script again.
+        </TextBlock>
+        <WrapPanel>
+            <StackPanel>
+                <Label Target="Port">Port</Label>
+                <TextBox x:Name="Port" Width="70" Text="{Binding InputPort}" />
+            </StackPanel>
+            <StackPanel>
+                <Label Target="Token">Token</Label>
+                <StackPanel Orientation="Horizontal">
+                    <TextBox x:Name="Token" Width="200" Text="{Binding InputToken}" />
+                </StackPanel>
+            </StackPanel>
+            <StackPanel VerticalAlignment="Bottom">
+                <Button Command="{Binding OnClickRandomizeToken}">Randomize Token</Button>
+            </StackPanel>
+        </WrapPanel>
+        <StackPanel Orientation="Horizontal" Spacing="10">
+            <Button IsEnabled="{Binding HasMadeChanges}" Command="{Binding OnClickApplyChanges}">Apply &amp; Restart</Button>
+            <Button IsEnabled="{Binding HasMadeChanges}" Command="{Binding OnClickCancelChanges}">Cancel</Button>
+        </StackPanel>
+    </StackPanel>
+
+</UserControl>

app/Desktop/Main/Controls/ServerConfigurationPanel.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Controls {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class ServerConfigurationPanel : UserControl {
+		public ServerConfigurationPanel() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Controls/ServerConfigurationPanelModel.cs

@@ -0,0 +1,116 @@
+using System;
+using Avalonia.Controls;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Server;
+using DHT.Server.Database;
+using DHT.Server.Service;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Controls {
+	sealed class ServerConfigurationPanelModel : BaseModel, IDisposable {
+		private string inputPort;
+
+		public string InputPort {
+			get => inputPort;
+			set {
+				Change(ref inputPort, value);
+				OnPropertyChanged(nameof(HasMadeChanges));
+			}
+		}
+
+		private string inputToken;
+
+		public string InputToken {
+			get => inputToken;
+			set {
+				Change(ref inputToken, value);
+				OnPropertyChanged(nameof(HasMadeChanges));
+			}
+		}
+
+		public bool HasMadeChanges => ServerManager.Port.ToString() != InputPort || ServerManager.Token != InputToken;
+
+		private bool isToggleServerButtonEnabled = true;
+
+		public bool IsToggleServerButtonEnabled {
+			get => isToggleServerButtonEnabled;
+			set => Change(ref isToggleServerButtonEnabled, value);
+		}
+
+		public string ToggleServerButtonText => serverManager.IsRunning ? "Stop Server" : "Start Server";
+
+		public event EventHandler<StatusBarModel.Status>? ServerStatusChanged;
+
+		private readonly Window window;
+		private readonly ServerManager serverManager;
+
+		[Obsolete("Designer")]
+		public ServerConfigurationPanelModel() : this(null!, new ServerManager(DummyDatabaseFile.Instance)) {}
+
+		public ServerConfigurationPanelModel(Window window, ServerManager serverManager) {
+			this.window = window;
+			this.serverManager = serverManager;
+			this.inputPort = ServerManager.Port.ToString();
+			this.inputToken = ServerManager.Token;
+		}
+
+		public void Initialize() {
+			ServerLauncher.ServerStatusChanged += ServerLauncherOnServerStatusChanged;
+		}
+
+		public void Dispose() {
+			ServerLauncher.ServerStatusChanged -= ServerLauncherOnServerStatusChanged;
+		}
+
+		private void ServerLauncherOnServerStatusChanged(object? sender, EventArgs e) {
+			ServerStatusChanged?.Invoke(this, serverManager.IsRunning ? StatusBarModel.Status.Ready : StatusBarModel.Status.Stopped);
+			OnPropertyChanged(nameof(ToggleServerButtonText));
+			IsToggleServerButtonEnabled = true;
+		}
+
+		private void BeforeServerStart() {
+			IsToggleServerButtonEnabled = false;
+			ServerStatusChanged?.Invoke(this, StatusBarModel.Status.Starting);
+		}
+
+		private void StartServer() {
+			BeforeServerStart();
+			serverManager.Launch();
+		}
+
+		private void StopServer() {
+			IsToggleServerButtonEnabled = false;
+			ServerStatusChanged?.Invoke(this, StatusBarModel.Status.Stopping);
+			serverManager.Stop();
+		}
+
+		public void OnClickToggleServerButton() {
+			if (serverManager.IsRunning) {
+				StopServer();
+			}
+			else {
+				StartServer();
+			}
+		}
+
+		public void OnClickRandomizeToken() {
+			InputToken = ServerUtils.GenerateRandomToken(20);
+		}
+
+		public async void OnClickApplyChanges() {
+			if (!ushort.TryParse(InputPort, out ushort port)) {
+				await Dialog.ShowOk(window, "Invalid Port", "Port must be a number between 0 and 65535.");
+				return;
+			}
+
+			BeforeServerStart();
+			serverManager.Relaunch(port, InputToken);
+			OnPropertyChanged(nameof(HasMadeChanges));
+		}
+
+		public void OnClickCancelChanges() {
+			InputPort = ServerManager.Port.ToString();
+			InputToken = ServerManager.Token;
+		}
+	}
+}

app/Desktop/Main/Controls/StatusBar.axaml

@@ -0,0 +1,61 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             mc:Ignorable="d"
+             x:Class="DHT.Desktop.Main.Controls.StatusBar">
+
+    <Design.DataContext>
+        <controls:StatusBarModel />
+    </Design.DataContext>
+
+    <UserControl.Background>
+        <SolidColorBrush>#3C4F79</SolidColorBrush>
+    </UserControl.Background>
+
+    <UserControl.Styles>
+        <Style Selector="StackPanel > TextBlock">
+            <Setter Property="Foreground" Value="#E7E7E7" />
+        </Style>
+        <Style Selector="StackPanel > TextBlock.label">
+            <Setter Property="FontSize" Value="15" />
+            <Setter Property="FontWeight" Value="SemiLight" />
+        </Style>
+        <Style Selector="StackPanel > TextBlock.value">
+            <Setter Property="FontSize" Value="16" />
+            <Setter Property="FontWeight" Value="SemiLight" />
+            <Setter Property="TextAlignment" Value="Right" />
+            <Setter Property="Margin" Value="0 1" />
+        </Style>
+        <Style Selector="StackPanel > Rectangle">
+            <Setter Property="Margin" Value="14 1" />
+            <Setter Property="Stroke" Value="#697899" />
+            <Setter Property="StrokeThickness" Value="2" />
+            <Setter Property="VerticalAlignment" Value="Stretch" />
+        </Style>
+    </UserControl.Styles>
+
+    <StackPanel Orientation="Horizontal" Margin="6 3">
+        <StackPanel Orientation="Vertical" Width="65">
+            <TextBlock Classes="label">Status</TextBlock>
+            <TextBlock FontSize="12" Margin="0 3 0 0" Text="{Binding StatusText}" />
+        </StackPanel>
+        <Rectangle />
+        <StackPanel Orientation="Vertical">
+            <TextBlock Classes="label">Servers</TextBlock>
+            <TextBlock Classes="value" Text="{Binding DatabaseStatistics.TotalServers, Converter={StaticResource NumberValueConverter}}" />
+        </StackPanel>
+        <Rectangle />
+        <StackPanel Orientation="Vertical">
+            <TextBlock Classes="label">Channels</TextBlock>
+            <TextBlock Classes="value" Text="{Binding DatabaseStatistics.TotalChannels, Converter={StaticResource NumberValueConverter}}" />
+        </StackPanel>
+        <Rectangle />
+        <StackPanel Orientation="Vertical">
+            <TextBlock Classes="label">Messages</TextBlock>
+            <TextBlock Classes="value" Text="{Binding DatabaseStatistics.TotalMessages, Converter={StaticResource NumberValueConverter}}" />
+        </StackPanel>
+    </StackPanel>
+
+</UserControl>

app/Desktop/Main/Controls/StatusBar.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Controls {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class StatusBar : UserControl {
+		public StatusBar() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Controls/StatusBarModel.cs

@@ -0,0 +1,45 @@
+using System;
+using DHT.Server.Database;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Controls {
+	sealed class StatusBarModel : BaseModel {
+		public DatabaseStatistics DatabaseStatistics { get; }
+
+		private Status status = Status.Stopped;
+
+		public Status CurrentStatus {
+			get => status;
+			set {
+				status = value;
+				OnPropertyChanged(nameof(StatusText));
+			}
+		}
+
+		public string StatusText {
+			get {
+				return CurrentStatus switch {
+					Status.Starting => "STARTING",
+					Status.Ready    => "READY",
+					Status.Stopping => "STOPPING",
+					Status.Stopped  => "STOPPED",
+					_               => ""
+				};
+			}
+		}
+
+		[Obsolete("Designer")]
+		public StatusBarModel() : this(new DatabaseStatistics()) {}
+
+		public StatusBarModel(DatabaseStatistics databaseStatistics) {
+			this.DatabaseStatistics = databaseStatistics;
+		}
+
+		public enum Status {
+			Starting,
+			Ready,
+			Stopping,
+			Stopped
+		}
+	}
+}

app/Desktop/Main/MainWindow.axaml

@@ -0,0 +1,22 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:main="clr-namespace:DHT.Desktop.Main"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="DHT.Desktop.Main.MainWindow"
+        Title="{Binding Title}"
+        Icon="avares://DiscordHistoryTracker/Resources/icon.ico"
+        Width="800" Height="500"
+        MinWidth="500" MinHeight="275"
+        WindowStartupLocation="CenterScreen"
+        Closed="OnClosed">
+
+    <Design.DataContext>
+        <main:MainWindowModel />
+    </Design.DataContext>
+
+    <Panel>
+        <ContentPresenter Content="{Binding CurrentScreen}" />
+    </Panel>
+</Window>

app/Desktop/Main/MainWindow.axaml.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+using JetBrains.Annotations;
+
+namespace DHT.Desktop.Main {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class MainWindow : Window {
+		[UsedImplicitly]
+		public MainWindow() {
+			InitializeComponent(Arguments.Empty);
+		}
+
+		internal MainWindow(Arguments args) {
+			InitializeComponent(args);
+		}
+
+		private void InitializeComponent(Arguments args) {
+			AvaloniaXamlLoader.Load(this);
+			DataContext = new MainWindowModel(this, args);
+
+			#if DEBUG
+			this.AttachDevTools();
+			#endif
+		}
+
+		public void OnClosed(object? sender, EventArgs e) {
+			if (DataContext is IDisposable disposable) {
+				disposable.Dispose();
+			}
+		}
+	}
+}

app/Desktop/Main/MainWindowModel.cs

@@ -0,0 +1,116 @@
+using System;
+using System.ComponentModel;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Main.Screens;
+using DHT.Desktop.Server;
+using DHT.Server.Database;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main {
+	sealed class MainWindowModel : BaseModel, IDisposable {
+		private const string DefaultTitle = "Discord History Tracker";
+
+		public string Title { get; private set; } = DefaultTitle;
+
+		public UserControl CurrentScreen { get; private set; }
+		
+		private readonly WelcomeScreen welcomeScreen;
+		private readonly WelcomeScreenModel welcomeScreenModel;
+
+		private MainContentScreen? mainContentScreen;
+		private MainContentScreenModel? mainContentScreenModel;
+
+		private readonly Window window;
+
+		private IDatabaseFile? db;
+
+		[Obsolete("Designer")]
+		public MainWindowModel() : this(null!, Arguments.Empty) {}
+
+		public MainWindowModel(Window window, Arguments args) {
+			this.window = window;
+
+			welcomeScreenModel = new WelcomeScreenModel(window);
+			welcomeScreen = new WelcomeScreen { DataContext = welcomeScreenModel };
+			CurrentScreen = welcomeScreen;
+
+			welcomeScreenModel.PropertyChanged += WelcomeScreenModelOnPropertyChanged;
+
+			var dbFile = args.DatabaseFile;
+			if (!string.IsNullOrWhiteSpace(dbFile)) {
+				async void OnWindowOpened(object? o, EventArgs eventArgs) {
+					window.Opened -= OnWindowOpened;
+
+					// https://github.com/AvaloniaUI/Avalonia/issues/3071
+					if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
+						await Task.Delay(500);
+					}
+
+					if (File.Exists(dbFile)) {
+						await welcomeScreenModel.OpenOrCreateDatabaseFromPath(dbFile);
+					}
+					else {
+						await Dialog.ShowOk(window, "Database Error", "Database file not found:\n" + dbFile);
+					}
+				}
+
+				window.Opened += OnWindowOpened;
+			}
+
+			if (args.ServerPort != null) {
+				ServerManager.Port = args.ServerPort.Value;
+			}
+
+			if (args.ServerToken != null) {
+				ServerManager.Token = args.ServerToken;
+			}
+		}
+
+		private async void WelcomeScreenModelOnPropertyChanged(object? sender, PropertyChangedEventArgs e) {
+			if (e.PropertyName == nameof(welcomeScreenModel.Db)) {
+				if (mainContentScreenModel != null) {
+					mainContentScreenModel.DatabaseClosed -= MainContentScreenModelOnDatabaseClosed;
+					mainContentScreenModel.Dispose();
+				}
+
+				db?.Dispose();
+				db = welcomeScreenModel.Db;
+
+				if (db == null) {
+					Title = DefaultTitle;
+					mainContentScreenModel = null;
+					mainContentScreen = null;
+					CurrentScreen = welcomeScreen;
+				}
+				else {
+					Title = Path.GetFileName(db.Path) + " - " + DefaultTitle;
+					mainContentScreenModel = new MainContentScreenModel(window, db);
+					await mainContentScreenModel.Initialize();
+					mainContentScreenModel.DatabaseClosed += MainContentScreenModelOnDatabaseClosed;
+					mainContentScreen = new MainContentScreen { DataContext = mainContentScreenModel };
+					CurrentScreen = mainContentScreen;
+				}
+
+				OnPropertyChanged(nameof(CurrentScreen));
+				OnPropertyChanged(nameof(Title));
+
+				window.Focus();
+			}
+		}
+
+		private void MainContentScreenModelOnDatabaseClosed(object? sender, EventArgs e) {
+			welcomeScreenModel.CloseDatabase();
+		}
+
+		public void Dispose() {
+			welcomeScreenModel.Dispose();
+			mainContentScreenModel?.Dispose();
+			db?.Dispose();
+			db = null;
+		}
+	}
+}

app/Desktop/Main/Pages/AdvancedPage.axaml

@@ -0,0 +1,19 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Pages.AdvancedPage">
+
+    <Design.DataContext>
+        <pages:AdvancedPageModel />
+    </Design.DataContext>
+
+    <StackPanel Orientation="Vertical" Spacing="10">
+        <Expander Header="Internal Server Configuration" IsExpanded="True">
+            <controls:ServerConfigurationPanel DataContext="{Binding ServerConfigurationModel}" />
+        </Expander>
+    </StackPanel>
+</UserControl>

app/Desktop/Main/Pages/AdvancedPage.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Pages {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class AdvancedPage : UserControl {
+		public AdvancedPage() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Pages/AdvancedPageModel.cs

@@ -0,0 +1,27 @@
+using System;
+using Avalonia.Controls;
+using DHT.Desktop.Main.Controls;
+using DHT.Desktop.Server;
+using DHT.Server.Database;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Pages {
+	sealed class AdvancedPageModel : BaseModel, IDisposable {
+		public ServerConfigurationPanelModel ServerConfigurationModel { get; }
+
+		[Obsolete("Designer")]
+		public AdvancedPageModel() : this(null!, new ServerManager(DummyDatabaseFile.Instance)) {}
+
+		public AdvancedPageModel(Window window, ServerManager serverManager) {
+			ServerConfigurationModel = new ServerConfigurationPanelModel(window, serverManager);
+		}
+
+		public void Initialize() {
+			ServerConfigurationModel.Initialize();
+		}
+		
+		public void Dispose() {
+			ServerConfigurationModel.Dispose();
+		}
+	}
+}

app/Desktop/Main/Pages/DatabasePage.axaml

@@ -0,0 +1,30 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Pages.DatabasePage">
+
+    <Design.DataContext>
+        <pages:DatabasePageModel />
+    </Design.DataContext>
+
+    <UserControl.Styles>
+        <Style Selector="WrapPanel > Button">
+            <Setter Property="Margin" Value="0 0 10 10" />
+        </Style>
+    </UserControl.Styles>
+
+    <StackPanel Spacing="10">
+        <DockPanel>
+            <Button Command="{Binding CloseDatabase}" DockPanel.Dock="Right">Close Database</Button>
+            <TextBox Text="{Binding Db.Path}" Width="NaN" Margin="0 0 10 0" IsReadOnly="True" />
+        </DockPanel>
+        <WrapPanel>
+            <Button Command="{Binding OpenDatabaseFolder}">Open Database Folder</Button>
+            <Button Command="{Binding MergeWithDatabase}">Merge with Database(s)...</Button>
+        </WrapPanel>
+    </StackPanel>
+
+</UserControl>

app/Desktop/Main/Pages/DatabasePage.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Pages {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class DatabasePage : UserControl {
+		public DatabasePage() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Pages/DatabasePageModel.cs

@@ -0,0 +1,155 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Common;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Dialogs.Progress;
+using DHT.Server.Database;
+using DHT.Utils.Logging;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Pages {
+	sealed class DatabasePageModel : BaseModel {
+		private static readonly Log Log = Log.ForType<DatabasePageModel>();
+
+		public IDatabaseFile Db { get; }
+
+		public event EventHandler? DatabaseClosed;
+
+		private readonly Window window;
+
+		[Obsolete("Designer")]
+		public DatabasePageModel() : this(null!, DummyDatabaseFile.Instance) {}
+
+		public DatabasePageModel(Window window, IDatabaseFile db) {
+			this.window = window;
+			this.Db = db;
+		}
+
+		public async void OpenDatabaseFolder() {
+			string file = Db.Path;
+			string? folder = Path.GetDirectoryName(file);
+
+			if (folder == null) {
+				return;
+			}
+
+			switch (Environment.OSVersion.Platform) {
+				case PlatformID.Win32NT:
+					Process.Start("explorer.exe", "/select,\"" + file + "\"");
+					break;
+
+				case PlatformID.Unix:
+					Process.Start("xdg-open", new string[] { folder });
+					break;
+
+				case PlatformID.MacOSX:
+					Process.Start("open", new string[] { folder });
+					break;
+
+				default:
+					await Dialog.ShowOk(window, "Feature Not Supported", "This feature is not supported for your operating system.");
+					break;
+			}
+		}
+
+		public async void MergeWithDatabase() {
+			var fileDialog = DatabaseGui.NewOpenDatabaseFileDialog();
+			fileDialog.Directory = Path.GetDirectoryName(Db.Path);
+			fileDialog.AllowMultiple = true;
+
+			string[]? paths = await fileDialog.ShowAsync(window);
+			if (paths == null || paths.Length == 0) {
+				return;
+			}
+
+			ProgressDialog progressDialog = new ProgressDialog();
+			progressDialog.DataContext = new ProgressDialogModel(async callback => await MergeWithDatabaseFromPaths(Db, paths, progressDialog, callback)) {
+				Title = "Database Merge"
+			};
+
+			await progressDialog.ShowDialog(window);
+		}
+
+		public void CloseDatabase() {
+			DatabaseClosed?.Invoke(this, EventArgs.Empty);
+		}
+
+		private static async Task MergeWithDatabaseFromPaths(IDatabaseFile target, string[] paths, ProgressDialog dialog, IProgressCallback callback) {
+			int total = paths.Length;
+
+			DialogResult.YesNo? upgradeResult = null;
+
+			async Task<bool> CheckCanUpgradeDatabase() {
+				upgradeResult ??= total > 1
+					                  ? await DatabaseGui.ShowCanUpgradeMultipleDatabaseDialog(dialog)
+					                  : await DatabaseGui.ShowCanUpgradeDatabaseDialog(dialog);
+
+				return DialogResult.YesNo.Yes == upgradeResult;
+			}
+
+			var oldStatistics = target.Statistics.Clone();
+			int successful = 0;
+			int finished = 0;
+
+			foreach (string path in paths) {
+				await callback.Update(Path.GetFileName(path), finished, total);
+				++finished;
+
+				if (!File.Exists(path)) {
+					await Dialog.ShowOk(dialog, "Database Error", "Database '" + Path.GetFileName(path) + "' no longer exists.");
+					continue;
+				}
+
+				IDatabaseFile? db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, dialog, CheckCanUpgradeDatabase);
+				if (db == null) {
+					continue;
+				}
+
+				try {
+					target.AddFrom(db);
+				} catch (Exception ex) {
+					Log.Error(ex);
+					await Dialog.ShowOk(dialog, "Database Error", "Database '" + Path.GetFileName(path) + "' could not be merged: " + ex.Message);
+					continue;
+				} finally {
+					db.Dispose();
+				}
+
+				++successful;
+			}
+
+			await callback.Update("Done", finished, total);
+
+			if (successful == 0) {
+				await Dialog.ShowOk(dialog, "Database Merge", "Nothing was merged.");
+				return;
+			}
+
+			var newStatistics = target.Statistics;
+			long newServers = newStatistics.TotalServers - oldStatistics.TotalServers;
+			long newChannels = newStatistics.TotalChannels - oldStatistics.TotalChannels;
+			long newMessages = newStatistics.TotalMessages - oldStatistics.TotalMessages;
+
+			StringBuilder message = new StringBuilder();
+			message.Append("Processed ");
+
+			if (successful == total) {
+				message.Append(successful.Pluralize("database file"));
+			}
+			else {
+				message.Append(successful.Format()).Append(" out of ").Append(total.Pluralize("database file"));
+			}
+
+			message.Append(" and added:\n\n  \u2022 ");
+			message.Append(newServers.Pluralize("server")).Append("\n  \u2022 ");
+			message.Append(newChannels.Pluralize("channel")).Append("\n  \u2022 ");
+			message.Append(newMessages.Pluralize("message"));
+
+			await Dialog.ShowOk(dialog, "Database Merge", message.ToString());
+		}
+	}
+}

app/Desktop/Main/Pages/TrackingPage.axaml

@@ -0,0 +1,26 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Pages.TrackingPage">
+
+    <Design.DataContext>
+        <pages:TrackingPageModel />
+    </Design.DataContext>
+
+    <StackPanel Spacing="10">
+        <TextBlock TextWrapping="Wrap">
+            To start tracking messages, copy the tracking script and paste it into the console of either the Discord app, or your browser. The console is usually opened by pressing Ctrl+Shift+I.
+        </TextBlock>
+        <StackPanel DockPanel.Dock="Left" Orientation="Horizontal" Spacing="10">
+            <Button x:Name="CopyTrackingScript" Click="CopyTrackingScriptButton_OnClick">Copy Tracking Script</Button>
+        </StackPanel>
+        <TextBlock TextWrapping="Wrap" Margin="0 5 0 0">
+            By default, the Discord app does not allow opening the console. The button below will change a hidden setting in the Discord app that controls whether the Ctrl+Shift+I shortcut is enabled.
+        </TextBlock>
+        <Button DockPanel.Dock="Right" Command="{Binding OnClickToggleAppDevTools}" Content="{Binding ToggleAppDevToolsButtonText}" IsEnabled="{Binding IsToggleAppDevToolsButtonEnabled}" />
+    </StackPanel>
+
+</UserControl>

app/Desktop/Main/Pages/TrackingPage.axaml.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Pages {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class TrackingPage : UserControl {
+		private bool isCopyingScript;
+
+		public TrackingPage() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+
+		public async void CopyTrackingScriptButton_OnClick(object? sender, RoutedEventArgs e) {
+			if (DataContext is TrackingPageModel model) {
+				var button = this.FindControl<Button>("CopyTrackingScript");
+				var originalText = button.Content;
+				button.MinWidth = button.Bounds.Width;
+
+				if (await model.OnClickCopyTrackingScript() && !isCopyingScript) {
+					isCopyingScript = true;
+					button.Content = "Script Copied!";
+
+					await Task.Delay(TimeSpan.FromSeconds(2));
+					button.Content = originalText;
+					isCopyingScript = false;
+				}
+			}
+		}
+	}
+}

app/Desktop/Main/Pages/TrackingPageModel.cs

@@ -0,0 +1,117 @@
+using System;
+using System.Threading.Tasks;
+using System.Web;
+using Avalonia;
+using Avalonia.Controls;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Discord;
+using DHT.Desktop.Server;
+using DHT.Utils.Models;
+using static DHT.Desktop.Program;
+
+namespace DHT.Desktop.Main.Pages {
+	sealed class TrackingPageModel : BaseModel {
+		private bool areDevToolsEnabled;
+
+		private bool AreDevToolsEnabled {
+			get => areDevToolsEnabled;
+			set {
+				Change(ref areDevToolsEnabled, value);
+				OnPropertyChanged(nameof(ToggleAppDevToolsButtonText));
+			}
+		}
+
+		public bool IsToggleAppDevToolsButtonEnabled { get; private set; } = true;
+
+		public string ToggleAppDevToolsButtonText {
+			get {
+				if (!IsToggleAppDevToolsButtonEnabled) {
+					return "Unavailable";
+				}
+
+				return AreDevToolsEnabled ? "Disable Ctrl+Shift+I" : "Enable Ctrl+Shift+I";
+			}
+		}
+
+		private readonly Window window;
+
+		[Obsolete("Designer")]
+		public TrackingPageModel() : this(null!) {}
+
+		public TrackingPageModel(Window window) {
+			this.window = window;
+		}
+
+		public async Task Initialize() {
+			bool? devToolsEnabled = await DiscordAppSettings.AreDevToolsEnabled();
+			if (devToolsEnabled.HasValue) {
+				AreDevToolsEnabled = devToolsEnabled.Value;
+			}
+			else {
+				IsToggleAppDevToolsButtonEnabled = false;
+				OnPropertyChanged(nameof(IsToggleAppDevToolsButtonEnabled));
+			}
+		}
+
+		public async Task<bool> OnClickCopyTrackingScript() {
+			string bootstrap = await Resources.ReadTextAsync("Tracker/bootstrap.js");
+			string script = bootstrap.Replace("= 0; /*[PORT]*/", "= " + ServerManager.Port + ";")
+			                         .Replace("/*[TOKEN]*/", HttpUtility.JavaScriptStringEncode(ServerManager.Token))
+			                         .Replace("/*[IMPORTS]*/", await Resources.ReadJoinedAsync("Tracker/scripts/", '\n'))
+			                         .Replace("/*[CSS-CONTROLLER]*/", await Resources.ReadTextAsync("Tracker/styles/controller.css"))
+			                         .Replace("/*[CSS-SETTINGS]*/", await Resources.ReadTextAsync("Tracker/styles/settings.css"));
+
+			var clipboard = Application.Current?.Clipboard;
+			if (clipboard == null) {
+				await Dialog.ShowOk(window, "Copy Tracking Script", "Clipboard is not available on this system.");
+				return false;
+			}
+
+			try {
+				await clipboard.SetTextAsync(script);
+				return true;
+			} catch {
+				await Dialog.ShowOk(window, "Copy Tracking Script", "An error occurred while copying to clipboard.");
+				return false;
+			}
+		}
+
+		public async void OnClickToggleAppDevTools() {
+			const string DialogTitle = "Discord App Settings File";
+
+			bool oldState = AreDevToolsEnabled;
+			bool newState = !oldState;
+
+			switch (await DiscordAppSettings.ConfigureDevTools(newState)) {
+				case SettingsJsonResult.Success:
+					AreDevToolsEnabled = newState;
+					await Dialog.ShowOk(window, DialogTitle, "Ctrl+Shift+I was " + (newState ? "enabled." : "disabled.") + " Restart the Discord app for the change to take effect.");
+					break;
+
+				case SettingsJsonResult.AlreadySet:
+					await Dialog.ShowOk(window, DialogTitle, "Ctrl+Shift+I is already " + (newState ? "enabled." : "disabled."));
+					AreDevToolsEnabled = newState;
+					break;
+
+				case SettingsJsonResult.FileNotFound:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot find the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.ReadError:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot read the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.InvalidJson:
+					await Dialog.ShowOk(window, DialogTitle, "Unknown format of the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				case SettingsJsonResult.WriteError:
+					await Dialog.ShowOk(window, DialogTitle, "Cannot save the settings file:\n" + DiscordAppSettings.JsonFilePath);
+					break;
+
+				default:
+					throw new ArgumentOutOfRangeException();
+			}
+		}
+	}
+}

app/Desktop/Main/Pages/ViewerPage.axaml

@@ -0,0 +1,38 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:pages="clr-namespace:DHT.Desktop.Main.Pages"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Pages.ViewerPage">
+
+    <Design.DataContext>
+        <pages:ViewerPageModel />
+    </Design.DataContext>
+
+    <UserControl.Styles>
+        <Style Selector="Expander">
+            <Setter Property="Margin" Value="0 25 0 0" />
+        </Style>
+    </UserControl.Styles>
+
+    <StackPanel Orientation="Vertical">
+        <StackPanel Orientation="Horizontal" VerticalAlignment="Top">
+            <Button Command="{Binding OnClickOpenViewer}" Margin="0 0 5 0">Open Viewer</Button>
+            <Button Command="{Binding OnClickSaveViewer}" Margin="5 0 0 0">Save Viewer</Button>
+        </StackPanel>
+        <TextBlock Text="{Binding ExportedMessageText}" Margin="0 20 0 0" />
+        <controls:FilterPanel DataContext="{Binding FilterModel}" />
+        <Expander Header="Database Tools">
+            <StackPanel Orientation="Vertical" Spacing="10">
+                <StackPanel Orientation="Vertical" Spacing="4">
+                    <RadioButton GroupName="DatabaseToolFilterMode" IsEnabled="{Binding HasFilters}" IsChecked="{Binding DatabaseToolFilterModeKeep}">Keep Only Messages Matching Filters</RadioButton>
+                    <RadioButton GroupName="DatabaseToolFilterMode" IsEnabled="{Binding HasFilters}" IsChecked="{Binding DatabaseToolFilterModeRemove}">Remove Messages Matching Filters</RadioButton>
+                </StackPanel>
+                <Button IsEnabled="{Binding HasFilters}" Command="{Binding OnClickApplyFiltersToDatabase}">Apply Filters to Database</Button>
+            </StackPanel>
+        </Expander>
+    </StackPanel>
+
+</UserControl>

app/Desktop/Main/Pages/ViewerPage.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Pages {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class ViewerPage : UserControl {
+		public ViewerPage() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Pages/ViewerPageModel.cs

@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.IO;
+using System.Threading.Tasks;
+using System.Web;
+using Avalonia.Controls;
+using DHT.Desktop.Common;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Main.Controls;
+using DHT.Server.Data.Filters;
+using DHT.Server.Database;
+using DHT.Server.Database.Export;
+using DHT.Utils.Models;
+using static DHT.Desktop.Program;
+
+namespace DHT.Desktop.Main.Pages {
+	sealed class ViewerPageModel : BaseModel, IDisposable {
+		public string ExportedMessageText { get; private set; } = "";
+
+		public bool DatabaseToolFilterModeKeep { get; set; } = true;
+		public bool DatabaseToolFilterModeRemove { get; set; } = false;
+
+		private bool hasFilters = false;
+
+		public bool HasFilters {
+			get => hasFilters;
+			set => Change(ref hasFilters, value);
+		}
+
+		private FilterPanelModel FilterModel { get; }
+
+		private readonly Window window;
+		private readonly IDatabaseFile db;
+
+		[Obsolete("Designer")]
+		public ViewerPageModel() : this(null!, DummyDatabaseFile.Instance) {}
+
+		public ViewerPageModel(Window window, IDatabaseFile db) {
+			this.window = window;
+			this.db = db;
+
+			FilterModel = new FilterPanelModel(window, db);
+			FilterModel.FilterPropertyChanged += OnFilterPropertyChanged;
+			db.Statistics.PropertyChanged += OnDbStatisticsChanged;
+			UpdateStatistics();
+		}
+
+		public void Dispose() {
+			db.Statistics.PropertyChanged -= OnDbStatisticsChanged;
+			FilterModel.Dispose();
+		}
+
+		private void OnFilterPropertyChanged(object? sender, PropertyChangedEventArgs e) {
+			UpdateStatistics();
+			HasFilters = FilterModel.HasAnyFilters;
+		}
+
+		private void OnDbStatisticsChanged(object? sender, PropertyChangedEventArgs e) {
+			if (e.PropertyName == nameof(DatabaseStatistics.TotalMessages)) {
+				UpdateStatistics();
+			}
+		}
+
+		private void UpdateStatistics() {
+			ExportedMessageText = "Will export " + db.CountMessages(FilterModel.CreateFilter()).Format() + " out of " + db.Statistics.TotalMessages.Format() + " message(s).";
+			OnPropertyChanged(nameof(ExportedMessageText));
+		}
+
+		private async Task<string> GenerateViewerContents() {
+			string json = ViewerJsonExport.Generate(db, FilterModel.CreateFilter());
+			
+			string index = await Resources.ReadTextAsync("Viewer/index.html");
+			string viewer = index.Replace("/*[JS]*/", await Resources.ReadJoinedAsync("Viewer/scripts/", '\n'))
+			                     .Replace("/*[CSS]*/", await Resources.ReadJoinedAsync("Viewer/styles/", '\n'))
+			                     .Replace("/*[ARCHIVE]*/", HttpUtility.JavaScriptStringEncode(json));
+			return viewer;
+		}
+
+		public async void OnClickOpenViewer() {
+			string rootPath = Path.Combine(Path.GetTempPath(), "DiscordHistoryTracker");
+			string filenameBase = Path.GetFileNameWithoutExtension(db.Path) + "-" + DateTime.Now.ToString("yyyy-MM-dd");
+			string fullPath = Path.Combine(rootPath, filenameBase + ".html");
+			int counter = 0;
+
+			while (File.Exists(fullPath)) {
+				++counter;
+				fullPath = Path.Combine(rootPath, filenameBase + "-" + counter + ".html");
+			}
+
+			Directory.CreateDirectory(rootPath);
+			await File.WriteAllTextAsync(fullPath, await GenerateViewerContents());
+
+			Process.Start(new ProcessStartInfo(fullPath) { UseShellExecute = true });
+		}
+
+		public async void OnClickSaveViewer() {
+			var dialog = new SaveFileDialog {
+				Title = "Save Viewer",
+				InitialFileName = "archive.html",
+				Directory = Path.GetDirectoryName(db.Path),
+				Filters = new List<FileDialogFilter> {
+					new() {
+						Name = "Discord History Viewer",
+						Extensions = { "html" }
+					}
+				}
+			}.ShowAsync(window);
+
+			string? path = await dialog;
+			if (!string.IsNullOrEmpty(path)) {
+				await File.WriteAllTextAsync(path, await GenerateViewerContents());
+			}
+		}
+
+		public async void OnClickApplyFiltersToDatabase() {
+			var filter = FilterModel.CreateFilter();
+
+			if (DatabaseToolFilterModeKeep) {
+				if (DialogResult.YesNo.Yes == await Dialog.ShowYesNo(window, "Keep Matching Messages in This Database", db.CountMessages(filter).Pluralize("message") + " will be kept, and the rest will be removed from this database. This action cannot be undone. Proceed?")) {
+					db.RemoveMessages(filter, MessageFilterRemovalMode.KeepMatching);
+				}
+			}
+			else if (DatabaseToolFilterModeRemove) {
+				if (DialogResult.YesNo.Yes == await Dialog.ShowYesNo(window, "Remove Matching Messages in This Database", db.CountMessages(filter).Pluralize("message") + " will be removed from this database. This action cannot be undone. Proceed?")) {
+					db.RemoveMessages(filter, MessageFilterRemovalMode.RemoveMatching);
+				}
+			}
+		}
+	}
+}

app/Desktop/Main/Screens/MainContentScreen.axaml

@@ -0,0 +1,109 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:controls="clr-namespace:DHT.Desktop.Main.Controls"
+             xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Screens.MainContentScreen">
+
+    <Design.DataContext>
+        <screens:MainContentScreenModel />
+    </Design.DataContext>
+
+    <UserControl.Styles>
+        <Style Selector="Border.statusBar">
+            <Setter Property="Background" Value="#3C4F79" />
+        </Style>
+        <Style Selector="TextBlock.invisibleTabItem">
+            <Setter Property="FontSize" Value="20" />
+            <Setter Property="FontWeight" Value="SemiLight" />
+            <Setter Property="Margin" Value="17 0" />
+            <Setter Property="Opacity" Value="0" />
+        </Style>
+        <Style Selector="TabControl ItemsPresenter > Grid">
+            <Setter Property="Background" Value="#546A9F" />
+        </Style>
+        <Style Selector="TabItem">
+            <Setter Property="Cursor" Value="Hand" />
+            <Setter Property="Foreground" Value="#E9E9E9" />
+            <Setter Property="FontSize" Value="20" />
+        </Style>
+        <Style Selector="TabItem[TabStripPlacement=Left] /template/ ContentPresenter#PART_ContentPresenter">
+            <Setter Property="Margin" Value="5 0" />
+        </Style>
+        <Style Selector="TabItem:pointerover">
+            <Setter Property="Cursor" Value="Hand" />
+            <Setter Property="Background" Value="#455785" />
+        </Style>
+        <Style Selector="TabItem:pointerover /template/ Border">
+            <Setter Property="Background" Value="#455785" />
+        </Style>
+        <Style Selector="TabItem:pointerover > TextBlock">
+            <Setter Property="Foreground" Value="#E9E9E9" />
+        </Style>
+        <Style Selector="TabItem:selected:pointerover /template/ Border">
+            <Setter Property="Background" Value="#FFFFFF" />
+        </Style>
+        <Style Selector="TabItem:selected:pointerover > TextBlock">
+            <Setter Property="Foreground" Value="#1A2234" />
+        </Style>
+        <Style Selector="TabItem:selected">
+            <Setter Property="Foreground" Value="#1A2234" />
+            <Setter Property="Background" Value="#FFFFFF" />
+        </Style>
+        <Style Selector="TabItem:selected /template/ Border#PART_SelectedPipe">
+            <Setter Property="IsVisible" Value="False" />
+        </Style>
+        <Style Selector="TabItem:disabled > TextBlock">
+            <Setter Property="Foreground" Value="#B2B2B2" />
+            <Setter Property="TextDecorations" Value="Strikethrough" />
+        </Style>
+        <Style Selector="TabItem.first">
+            <Setter Property="Margin" Value="0 13 0 0" />
+        </Style>
+        <Style Selector="TabControl">
+            <Setter Property="Padding" Value="0" />
+        </Style>
+        <Style Selector="ContentPresenter.page">
+            <Setter Property="Margin" Value="15 21 20 21" />
+        </Style>
+    </UserControl.Styles>
+
+    <DockPanel>
+        <Border Classes="statusBar" DockPanel.Dock="Bottom">
+            <DockPanel>
+                <TextBlock Classes="invisibleTabItem" DockPanel.Dock="Left">Advanced</TextBlock>
+                <controls:StatusBar DataContext="{Binding StatusBarModel}" DockPanel.Dock="Right" />
+            </DockPanel>
+        </Border>
+        <TabControl x:Name="TabControl" TabStripPlacement="Left" DockPanel.Dock="Top">
+            <TabControl.ItemsPanel>
+                <ItemsPanelTemplate>
+                    <Grid ColumnDefinitions="Auto" RowDefinitions="Auto,Auto,Auto,*,Auto" />
+                </ItemsPanelTemplate>
+            </TabControl.ItemsPanel>
+            <TabItem x:Name="TabDatabase" Header="Database" Classes="first" Grid.Row="0">
+                <ScrollViewer>
+                    <ContentPresenter Content="{Binding DatabasePage}" Classes="page" />
+                </ScrollViewer>
+            </TabItem>
+            <TabItem x:Name="TabTracking" Header="Tracking" DockPanel.Dock="Top" Grid.Row="1">
+                <ScrollViewer>
+                    <ContentPresenter Content="{Binding TrackingPage}" Classes="page" />
+                </ScrollViewer>
+            </TabItem>
+            <TabItem x:Name="TabViewer" Header="Viewer" DockPanel.Dock="Top" Grid.Row="2">
+                <ScrollViewer>
+                    <ContentPresenter Content="{Binding ViewerPage}" Classes="page" />
+                </ScrollViewer>
+            </TabItem>
+            <TabItem x:Name="TabAdvanced" Header="Advanced" DockPanel.Dock="Bottom" Grid.Row="4">
+                <ScrollViewer>
+                    <ContentPresenter Content="{Binding AdvancedPage}" Classes="page" />
+                </ScrollViewer>
+            </TabItem>
+        </TabControl>
+    </DockPanel>
+
+</UserControl>

app/Desktop/Main/Screens/MainContentScreen.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Screens {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class MainContentScreen : UserControl {
+		public MainContentScreen() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Screens/MainContentScreenModel.cs

@@ -0,0 +1,96 @@
+using System;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Desktop.Main.Controls;
+using DHT.Desktop.Main.Pages;
+using DHT.Desktop.Server;
+using DHT.Server.Database;
+using DHT.Server.Service;
+using DHT.Utils.Logging;
+
+namespace DHT.Desktop.Main.Screens {
+	sealed class MainContentScreenModel : IDisposable {
+		private static readonly Log Log = Log.ForType<MainContentScreenModel>();
+
+		public DatabasePage DatabasePage { get; }
+		private DatabasePageModel DatabasePageModel { get; }
+
+		public TrackingPage TrackingPage { get; }
+		private TrackingPageModel TrackingPageModel { get; }
+
+		public ViewerPage ViewerPage { get; }
+		private ViewerPageModel ViewerPageModel { get; }
+
+		public AdvancedPage AdvancedPage { get; }
+		private AdvancedPageModel AdvancedPageModel { get; }
+
+		public StatusBarModel StatusBarModel { get; }
+
+		public event EventHandler? DatabaseClosed {
+			add {
+				DatabasePageModel.DatabaseClosed += value;
+			}
+			remove {
+				DatabasePageModel.DatabaseClosed -= value;
+			}
+		}
+		
+		private readonly Window window;
+		private readonly ServerManager serverManager;
+
+		[Obsolete("Designer")]
+		public MainContentScreenModel() : this(null!, DummyDatabaseFile.Instance) {}
+
+		public MainContentScreenModel(Window window, IDatabaseFile db) {
+			this.window = window;
+			this.serverManager = new ServerManager(db);
+			
+			ServerLauncher.ServerManagementExceptionCaught += ServerLauncherOnServerManagementExceptionCaught;
+			
+			DatabasePageModel = new DatabasePageModel(window, db);
+			DatabasePage = new DatabasePage { DataContext = DatabasePageModel };
+
+			TrackingPageModel = new TrackingPageModel(window);
+			TrackingPage = new TrackingPage { DataContext = TrackingPageModel };
+
+			ViewerPageModel = new ViewerPageModel(window, db);
+			ViewerPage = new ViewerPage { DataContext = ViewerPageModel };
+			
+			AdvancedPageModel = new AdvancedPageModel(window, serverManager);
+			AdvancedPage = new AdvancedPage { DataContext = AdvancedPageModel };
+
+			StatusBarModel = new StatusBarModel(db.Statistics);
+			
+			AdvancedPageModel.ServerConfigurationModel.ServerStatusChanged += OnServerStatusChanged;
+			DatabaseClosed += OnDatabaseClosed;
+			
+			StatusBarModel.CurrentStatus = serverManager.IsRunning ? StatusBarModel.Status.Ready : StatusBarModel.Status.Stopped;
+		}
+
+		public async Task Initialize() {
+			await TrackingPageModel.Initialize();
+			AdvancedPageModel.Initialize();
+			serverManager.Launch();
+		}
+
+		public void Dispose() {
+			ServerLauncher.ServerManagementExceptionCaught -= ServerLauncherOnServerManagementExceptionCaught;
+			ViewerPageModel.Dispose();
+			serverManager.Dispose();
+		}
+
+		private void OnServerStatusChanged(object? sender, StatusBarModel.Status e) {
+			StatusBarModel.CurrentStatus = e;
+		}
+
+		private void OnDatabaseClosed(object? sender, EventArgs e) {
+			serverManager.Stop();
+		}
+
+		private async void ServerLauncherOnServerManagementExceptionCaught(object? sender, Exception ex) {
+			Log.Error(ex);
+			await Dialog.ShowOk(window, "Internal Server Error", ex.Message);
+		}
+	}
+}

app/Desktop/Main/Screens/WelcomeScreen.axaml

@@ -0,0 +1,40 @@
+<UserControl xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:screens="clr-namespace:DHT.Desktop.Main.Screens"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="DHT.Desktop.Main.Screens.WelcomeScreen">
+
+    <Design.DataContext>
+        <screens:WelcomeScreenModel />
+    </Design.DataContext>
+
+    <UserControl.Background>
+        <SolidColorBrush>#546A9F</SolidColorBrush>
+    </UserControl.Background>
+
+    <UserControl.Styles>
+        <Style Selector="Panel#RootPanel">
+            <Setter Property="Background" Value="#FFFFFF" />
+            <Setter Property="Margin" Value="20" />
+            <Setter Property="HorizontalAlignment" Value="Center" />
+            <Setter Property="VerticalAlignment" Value="Center" />
+        </Style>
+        <Style Selector="Button">
+            <Setter Property="Margin" Value="5 0" />
+        </Style>
+    </UserControl.Styles>
+
+    <Panel Name="RootPanel">
+        <StackPanel Margin="42">
+            <TextBlock Text="{Binding Version, StringFormat=Discord History Tracker v{0}}" FontSize="25" Margin="0 0 0 30" HorizontalAlignment="Center" />
+
+            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
+                <Button Command="{Binding OpenOrCreateDatabase}">Open or Create Database</Button>
+                <Button Command="{Binding ShowAboutDialog}">About</Button>
+                <Button Command="{Binding Exit}">Exit</Button>
+            </StackPanel>
+        </StackPanel>
+    </Panel>
+</UserControl>

app/Desktop/Main/Screens/WelcomeScreen.axaml.cs

@@ -0,0 +1,16 @@
+using System.Diagnostics.CodeAnalysis;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace DHT.Desktop.Main.Screens {
+	[SuppressMessage("ReSharper", "MemberCanBeInternal")]
+	public sealed class WelcomeScreen : UserControl {
+		public WelcomeScreen() {
+			InitializeComponent();
+		}
+
+		private void InitializeComponent() {
+			AvaloniaXamlLoader.Load(this);
+		}
+	}
+}

app/Desktop/Main/Screens/WelcomeScreenModel.cs

@@ -0,0 +1,73 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+using DHT.Desktop.Common;
+using DHT.Desktop.Dialogs.Message;
+using DHT.Server.Database;
+using DHT.Utils.Models;
+
+namespace DHT.Desktop.Main.Screens {
+	sealed class WelcomeScreenModel : BaseModel, IDisposable {
+		public string Version => Program.Version;
+
+		public IDatabaseFile? Db { get; private set; }
+		public bool HasDatabase => Db != null;
+
+		private readonly Window window;
+
+		private string? dbFilePath;
+
+		[Obsolete("Designer")]
+		public WelcomeScreenModel() : this(null!) {}
+
+		public WelcomeScreenModel(Window window) {
+			this.window = window;
+		}
+
+		public async void OpenOrCreateDatabase() {
+			var dialog = DatabaseGui.NewOpenOrCreateDatabaseFileDialog();
+			dialog.Directory = Path.GetDirectoryName(dbFilePath);
+
+			string? path = await dialog.ShowAsync(window);
+			if (!string.IsNullOrWhiteSpace(path)) {
+				await OpenOrCreateDatabaseFromPath(path);
+			}
+		}
+
+		public async Task OpenOrCreateDatabaseFromPath(string path) {
+			if (Db != null) {
+				Db = null;
+			}
+
+			dbFilePath = path;
+			Db = await DatabaseGui.TryOpenOrCreateDatabaseFromPath(path, window, CheckCanUpgradeDatabase);
+
+			OnPropertyChanged(nameof(Db));
+			OnPropertyChanged(nameof(HasDatabase));
+		}
+
+		private async Task<bool> CheckCanUpgradeDatabase() {
+			return DialogResult.YesNo.Yes == await DatabaseGui.ShowCanUpgradeDatabaseDialog(window);
+		}
+
+		public void CloseDatabase() {
+			Dispose();
+			OnPropertyChanged(nameof(Db));
+			OnPropertyChanged(nameof(HasDatabase));
+		}
+
+		public async void ShowAboutDialog() {
+			await new AboutWindow { DataContext = new AboutWindowModel() }.ShowDialog(this.window);
+		}
+
+		public void Exit() {
+			window.Close();
+		}
+
+		public void Dispose() {
+			Db?.Dispose();
+			Db = null;
+		}
+	}
+}

app/Desktop/Program.cs

@@ -0,0 +1,39 @@
+using System.Globalization;
+using System.Reflection;
+using Avalonia;
+using DHT.Utils.Resources;
+
+namespace DHT.Desktop {
+	static class Program {
+		public static string Version { get; }
+		public static CultureInfo Culture { get; }
+		public static ResourceLoader Resources { get; }
+
+		static Program() {
+			var assembly = Assembly.GetExecutingAssembly();
+			
+			Version = assembly.GetName().Version?.ToString() ?? "";
+			while (Version.EndsWith(".0")) {
+				Version = Version[..^2];
+			}
+
+			Culture = CultureInfo.CurrentCulture;
+			CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
+			CultureInfo.CurrentUICulture = CultureInfo.InvariantCulture;
+			CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
+			CultureInfo.DefaultThreadCurrentUICulture = CultureInfo.InvariantCulture;
+			
+			Resources = new ResourceLoader(assembly);
+		}
+
+		public static void Main(string[] args) {
+			BuildAvaloniaApp().StartWithClassicDesktopLifetime(args);
+		}
+
+		private static AppBuilder BuildAvaloniaApp() {
+			return AppBuilder.Configure<App>()
+			                 .UsePlatformDetect()
+			                 .LogToTrace();
+		}
+	}
+}

app/Desktop/Server/ServerManager.cs

@@ -0,0 +1,50 @@
+using System;
+using DHT.Server.Database;
+using DHT.Server.Service;
+
+namespace DHT.Desktop.Server {
+	sealed class ServerManager : IDisposable {
+		public static ushort Port { get; set; } = ServerUtils.FindAvailablePort(50000, 60000);
+		public static string Token { get; set; } = ServerUtils.GenerateRandomToken(20);
+
+		private static ServerManager? instance;
+
+		public bool IsRunning => ServerLauncher.IsRunning;
+		
+		private readonly IDatabaseFile db;
+		
+		public ServerManager(IDatabaseFile db) {
+			if (db != DummyDatabaseFile.Instance) {
+				if (instance != null) {
+					throw new InvalidOperationException("Only one instance of ServerManager can exist at the same time!");
+				}
+
+				instance = this;
+			}
+
+			this.db = db;
+		}
+
+		public void Launch() {
+			ServerLauncher.Relaunch(Port, Token, db);
+		}
+
+		public void Relaunch(ushort port, string token) {
+			Port = port;
+			Token = token;
+			Launch();
+		}
+
+		public void Stop() {
+			ServerLauncher.Stop();
+		}
+
+		public void Dispose() {
+			Stop();
+			
+			if (instance == this) {
+				instance = null;
+			}
+		}
+	}
+}

app/DiscordHistoryTracker.sln

@@ -0,0 +1,28 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Desktop", "Desktop\Desktop.csproj", "{6E7E573B-B13E-4F45-B3E3-1BE722DCAACD}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Server", "Server\Server.csproj", "{7F94B470-B06F-43C0-9655-6592A9AE2D92}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Utils", "Utils\Utils.csproj", "{7EEC1C05-1D21-4B39-B1D6-CF51F3795629}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6E7E573B-B13E-4F45-B3E3-1BE722DCAACD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6E7E573B-B13E-4F45-B3E3-1BE722DCAACD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6E7E573B-B13E-4F45-B3E3-1BE722DCAACD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6E7E573B-B13E-4F45-B3E3-1BE722DCAACD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7F94B470-B06F-43C0-9655-6592A9AE2D92}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7F94B470-B06F-43C0-9655-6592A9AE2D92}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7F94B470-B06F-43C0-9655-6592A9AE2D92}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7F94B470-B06F-43C0-9655-6592A9AE2D92}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7EEC1C05-1D21-4B39-B1D6-CF51F3795629}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7EEC1C05-1D21-4B39-B1D6-CF51F3795629}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7EEC1C05-1D21-4B39-B1D6-CF51F3795629}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7EEC1C05-1D21-4B39-B1D6-CF51F3795629}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

app/Resources/Schemas/track-channel.yml

@@ -0,0 +1,42 @@
+$schema: http://json-schema.org/draft-07/schema
+type: object
+properties:
+  server:
+    type: object
+    properties:
+      id:
+        type: string
+        pattern: "^[0-9]+$"
+      name:
+        type: string
+      type:
+        type: string
+        enum:
+          - SERVER
+          - GROUP
+          - DM
+    required:
+      - id
+      - name
+      - type
+  channel:
+    type: object
+    properties:
+      id:
+        type: string
+        pattern: "^[0-9]+$"
+      name:
+        type: string
+      position:
+        type: number
+        minimum: 0
+      topic:
+        type: string
+      nsfw:
+        type: boolean
+    required:
+      - id
+      - name
+required:
+  - server
+  - channel

app/Resources/Schemas/track-messages.yml

@@ -0,0 +1,81 @@
+$schema: http://json-schema.org/draft-07/schema
+type: array
+items:
+  anyOf:
+    - type: object
+      properties:
+        id:
+          type: string
+          pattern: "^[0-9]+$"
+        sender:
+          type: string
+          pattern: "^[0-9]+$"
+        channel:
+          type: string
+          pattern: "^[0-9]+$"
+        text:
+          type: string
+        timestamp:
+          type: string
+          pattern: "^[0-9]+$"
+        editTimestamp:
+          type: string
+          pattern: "^[0-9]+$"
+        repliedToId:
+          type: string
+          pattern: "^[0-9]+$"
+        attachments:
+          type: array
+          items:
+            type: object
+            properties:
+              id:
+                type: string
+                pattern: "^[0-9]+$"
+              name:
+                type: string
+              type:
+                type: string
+              size:
+                type: number
+                minimum: 0
+              url:
+                type: string
+            required:
+              - id
+              - name
+              - size
+              - url
+        embeds:
+          type: array
+          items:
+            type: string
+            pattern: "^\{.*\}$"
+        reactions:
+          type: array
+          items:
+            type: object
+            properties:
+              id:
+                type: string
+                pattern: "^[0-9]+$"
+              name:
+                type: string
+              isAnimated:
+                type: boolean
+              count:
+                type: number
+                minimum: 1
+            anyOf:
+              - required:
+                  - id
+                  - count
+              - required:
+                  - name
+                  - count
+      required:
+        - id
+        - sender
+        - channel
+        - text
+        - timestamp

app/Resources/Schemas/track-users.yml

@@ -0,0 +1,19 @@
+$schema: http://json-schema.org/draft-07/schema
+type: array
+items:
+  anyOf:
+    - type: object
+      properties:
+        id:
+          type: string
+          pattern: "^[0-9]+$"
+        name:
+          type: string
+        avatar:
+          type: string
+        discriminator:
+          type: string
+          pattern: "^[0-9]{4}$"
+      required:
+        - id
+        - name

app/Resources/Tracker/bootstrap.js

@@ -0,0 +1,158 @@
+(function() {
+	const url = window.location.href;
+	
+	if (!url.includes("discord.com/") && !url.includes("discordapp.com/") && !confirm("Could not detect Discord in the URL, do you want to run the script anyway?")) {
+		return;
+	}
+	
+	if (window.DHT_LOADED) {
+		alert("Discord History Tracker is already loaded.");
+		return;
+	}
+	
+	window.DHT_LOADED = true;
+	window.DHT_ON_UNLOAD = [];
+	
+	/*[IMPORTS]*/
+	
+	const port = 0; /*[PORT]*/
+	const token = "/*[TOKEN]*/";
+	STATE.setup(port, token);
+	
+	let delayedStopRequests = 0;
+	const stopTrackingDelayed = function(callback) {
+		delayedStopRequests++;
+		
+		window.setTimeout(() => {
+			STATE.setIsTracking(false);
+			delayedStopRequests--;
+			
+			if (callback) {
+				callback();
+			}
+		}, 200); // give the user visual feedback after clicking the button before switching off
+	};
+	
+	let hasJustStarted = false;
+	let isSending = false;
+	
+	const onError = function(e) {
+		console.log(e);
+		GUI.setStatus(e.status === "DISCONNECTED" ? "Disconnected" : "Error");
+		stopTrackingDelayed(() => isSending = false);
+	};
+	
+	const isNoAction = function(action) {
+		return action === null || action === CONSTANTS.AUTOSCROLL_ACTION_NOTHING;
+	};
+	
+	const onTrackingContinued = function(anyNewMessages) {
+		if (!STATE.isTracking()) {
+			return;
+		}
+		
+		GUI.setStatus("Tracking");
+		
+		if (hasJustStarted) {
+			anyNewMessages = true;
+			hasJustStarted = false;
+		}
+		
+		isSending = false;
+		
+		if (SETTINGS.autoscroll) {
+			let action = null;
+			
+			if (!DISCORD.hasMoreMessages()) {
+				action = SETTINGS.afterFirstMsg;
+			}
+			if (isNoAction(action) && !anyNewMessages) {
+				action = SETTINGS.afterSavedMsg;
+			}
+			
+			if (isNoAction(action)) {
+				DISCORD.loadOlderMessages();
+			}
+			else if (action === CONSTANTS.AUTOSCROLL_ACTION_PAUSE || (action === CONSTANTS.AUTOSCROLL_ACTION_SWITCH && !DISCORD.selectNextTextChannel())) {
+				GUI.setStatus("Reached End");
+				STATE.setIsTracking(false);
+			}
+		}
+	};
+	
+	let waitUntilSendingFinishedTimer = null;
+	
+	const onMessagesUpdated = async messages => {
+		if (!STATE.isTracking() || delayedStopRequests > 0) {
+			return;
+		}
+		
+		if (isSending) {
+			window.clearTimeout(waitUntilSendingFinishedTimer);
+			
+			waitUntilSendingFinishedTimer = window.setTimeout(() => {
+				waitUntilSendingFinishedTimer = null;
+				onMessagesUpdated(messages);
+			}, 100);
+			
+			return;
+		}
+		
+		const info = DISCORD.getSelectedChannel();
+		
+		if (!info) {
+			GUI.setStatus("Error (Unknown Channel)");
+			stopTrackingDelayed();
+			return;
+		}
+		
+		isSending = true;
+		
+		try {
+			await STATE.addDiscordChannel(info.server, info.channel);
+		} catch (e) {
+			onError(e);
+			return;
+		}
+		
+		try {
+			if (!messages.length) {
+				isSending = false;
+				onTrackingContinued(false);
+			}
+			else {
+				const anyNewMessages = await STATE.addDiscordMessages(info.id, messages);
+				onTrackingContinued(anyNewMessages);
+			}
+		} catch (e) {
+			onError(e);
+		}
+	};
+	
+	DISCORD.setupMessageCallback(onMessagesUpdated);
+	
+	STATE.onTrackingStateChanged(enabled => {
+		if (enabled) {
+			const messages = DISCORD.getMessages();
+			
+			if (messages.length === 0) {
+				stopTrackingDelayed(() => alert("Cannot see any messages."));
+				return;
+			}
+			
+			GUI.setStatus("Starting");
+			hasJustStarted = true;
+			// noinspection JSIgnoredPromiseFromCall
+			onMessagesUpdated(messages);
+		}
+		else {
+			isSending = false;
+		}
+	});
+	
+	GUI.showController();
+	
+	if (IS_FIRST_RUN) {
+		GUI.showSettings();
+	}
+})();

app/Resources/Tracker/scripts/discord.js

@@ -0,0 +1,285 @@
+// noinspection JSUnresolvedVariable
+class DISCORD {
+	static getMessageOuterElement() {
+		return DOM.queryReactClass("messagesWrapper");
+	}
+	
+	static getMessageScrollerElement() {
+		return DOM.queryReactClass("scroller", this.getMessageOuterElement());
+	}
+	
+	static getMessageElements() {
+		return this.getMessageOuterElement().querySelectorAll("[class*='message-']");
+	}
+	
+	static hasMoreMessages() {
+		return document.querySelector("#messagesNavigationDescription + [class^=container]") === null;
+	}
+	
+	static loadOlderMessages() {
+		const view = this.getMessageScrollerElement();
+		
+		if (view.scrollTop > 0) {
+			view.scrollTop = 0;
+		}
+	}
+	
+	/**
+	 * Calls the provided function with a list of messages whenever the currently loaded messages change.
+	 */
+	static setupMessageCallback(callback) {
+		let skipsLeft = 0;
+		let waitForCleanup = false;
+		const previousMessages = new Set();
+		
+		const timer = window.setInterval(() => {
+			if (skipsLeft > 0) {
+				--skipsLeft;
+				return;
+			}
+			
+			const view = this.getMessageOuterElement();
+			
+			if (!view) {
+				skipsLeft = 2;
+				return;
+			}
+			
+			const anyMessage = DOM.queryReactClass("message", this.getMessageOuterElement());
+			const messageCount = anyMessage ? anyMessage.parentElement.children.length : 0;
+			
+			if (messageCount > 300) {
+				if (waitForCleanup) {
+					return;
+				}
+				
+				skipsLeft = 3;
+				waitForCleanup = true;
+				
+				window.setTimeout(() => {
+					const view = this.getMessageScrollerElement();
+					// noinspection JSUnusedGlobalSymbols
+					view.scrollTop = view.scrollHeight / 2;
+				}, 1);
+			}
+			else {
+				waitForCleanup = false;
+			}
+			
+			const messages = this.getMessages();
+			const hasChanged = messages.some(message => !previousMessages.has(message.id)) || !this.hasMoreMessages();
+			
+			if (!hasChanged) {
+				return;
+			}
+			
+			previousMessages.clear();
+			for (const message of messages) {
+				previousMessages.add(message.id);
+			}
+			
+			callback(messages);
+		}, 200);
+		
+		window.DHT_ON_UNLOAD.push(() => window.clearInterval(timer));
+	}
+	
+	/**
+	 * Returns the property object of a message element.
+	 * @returns { null | { message: DiscordMessage, channel: Object } }
+	 */
+	static getMessageElementProps(ele) {
+		const props = DOM.getReactProps(ele);
+		
+		if (props.children && props.children.length >= 4) {
+			const childProps = props.children[3].props;
+			
+			if ("message" in childProps && "channel" in childProps) {
+				return childProps;
+			}
+		}
+		
+		return null;
+	}
+	
+	/**
+	 * Returns an array containing currently loaded messages.
+	 */
+	static getMessages() {
+		try {
+			const messages = [];
+			
+			for (const ele of this.getMessageElements()) {
+				const props = this.getMessageElementProps(ele);
+				
+				if (props != null) {
+					messages.push(props.message);
+				}
+			}
+			
+			return messages;
+		} catch (e) {
+			console.error(e);
+			return [];
+		}
+	}
+	
+	/**
+	 * Returns an object containing the selected server and channel information.
+	 * For types DM and GROUP, the server and channel ids and names are identical.
+	 * @returns { {} | null }
+	 */
+	static getSelectedChannel() {
+		try {
+			let obj;
+			
+			try {
+				for (const child of DOM.getReactProps(DOM.queryReactClass("chatContent")).children) {
+					if (child && child.props && child.props.channel) {
+						obj = child.props.channel;
+						break;
+					}
+				}
+			} catch (e) {
+				console.error("[DHT] Error retrieving selected channel from 'chatContent' element.", e);
+				
+				for (const ele of this.getMessageElements()) {
+					const props = this.getMessageElementProps(ele);
+					
+					if (props != null) {
+						obj = props.channel;
+						break;
+					}
+				}
+			}
+			
+			if (!obj || typeof obj.id !== "string") {
+				return null;
+			}
+			
+			const dms = DOM.queryReactClass("privateChannels");
+			
+			if (dms) {
+				let name;
+				
+				for (const ele of dms.querySelectorAll("[class*='channel-'] [class*='selected-'] [class^='name-'] *, [class*='channel-'][class*='selected-'] [class^='name-'] *")) {
+					const node = Array.prototype.find.call(ele.childNodes, node => node.nodeType === Node.TEXT_NODE);
+					
+					if (node) {
+						name = node.nodeValue;
+						break;
+					}
+				}
+				
+				if (!name) {
+					return null;
+				}
+				
+				let type;
+				
+				// https://discord.com/developers/docs/resources/channel#channel-object-channel-types
+				switch (obj.type) {
+					case 1: type = "DM"; break;
+					case 3: type = "GROUP"; break;
+					default: return null;
+				}
+				
+				const id = obj.id;
+				const server = { id, name, type };
+				const channel = { id, name };
+				
+				return { server, channel };
+			}
+			else if (obj.guild_id) {
+				const server = {
+					"id": obj.guild_id,
+					"name": document.querySelector("nav header > h1").innerText,
+					"type": "SERVER"
+				};
+				
+				const channel = {
+					"id": obj.id,
+					"name": obj.name,
+					"extra": {
+						"nsfw": obj.nsfw
+					}
+				};
+				
+				if (obj.parent_id) {
+					channel["extra"]["parent"] = obj.parent_id;
+				}
+				else {
+					channel["extra"]["position"] = obj.position;
+					channel["extra"]["topic"] = obj.topic;
+				}
+				
+				return { server, channel };
+			}
+			else {
+				return null;
+			}
+		} catch (e) {
+			console.error("[DHT] Error retrieving selected channel.", e);
+			return null;
+		}
+	}
+	
+	/**
+	 * Selects the next text channel and returns true, otherwise returns false if there are no more channels.
+	 */
+	static selectNextTextChannel() {
+		const dms = DOM.queryReactClass("privateChannels");
+		
+		if (dms) {
+			const currentChannel = DOM.queryReactClass("selected", dms);
+			const currentChannelContainer = currentChannel && currentChannel.closest("[class*='channel-']");
+			const nextChannel = currentChannelContainer && currentChannelContainer.nextElementSibling;
+			
+			if (!nextChannel || !nextChannel.getAttribute("class").includes("channel-")) {
+				return false;
+			}
+			
+			const nextChannelLink = nextChannel.querySelector("a[href*='/@me/']");
+			if (!nextChannelLink) {
+				return false;
+			}
+			
+			nextChannelLink.click();
+			nextChannelLink.scrollIntoView(true);
+			return true;
+		}
+		else {
+			const channelListEle = document.getElementById("channels");
+			if (!channelListEle) {
+				return false;
+			}
+			
+			function getLinkElement(channel) {
+				return channel.querySelector("a[href^='/channels/'][role='link']");
+			}
+			
+			const allTextChannels = Array.prototype.filter.call(channelListEle.querySelectorAll("[class*='containerDefault']"), ele => getLinkElement(ele) !== null);
+			let nextChannel = null;
+			
+			for (let index = 0; index < allTextChannels.length - 1; index++) {
+				if (allTextChannels[index].className.includes("selected-")) {
+					nextChannel = allTextChannels[index + 1];
+					break;
+				}
+			}
+			
+			if (nextChannel === null) {
+				return false;
+			}
+			
+			const nextChannelLink = getLinkElement(nextChannel);
+			if (!nextChannelLink) {
+				return false;
+			}
+			
+			nextChannelLink.click();
+			nextChannel.scrollIntoView(true);
+			return true;
+		}
+	}
+}

app/Resources/Tracker/scripts/dom.js

@@ -0,0 +1,74 @@
+class DOM {
+	/**
+	 * Returns a child element by its ID. Parent defaults to the entire document.
+	 * @returns {HTMLElement}
+	 */
+	static id(id, parent) {
+		return (parent || document).getElementById(id);
+	}
+	
+	/**
+	 * Returns the first child element containing the specified obfuscated class. Parent defaults to the entire document.
+	 */
+	static queryReactClass(cls, parent) {
+		return (parent || document).querySelector(`[class*="${cls}-"]`);
+	}
+	
+	/**
+	 * Creates an element, adds it to the DOM, and returns it.
+	 */
+	static createElement(tag, parent, id, html) {
+		/** @type HTMLElement */
+		const ele = document.createElement(tag);
+		ele.id = id || "";
+		ele.innerHTML = html || "";
+		parent.appendChild(ele);
+		return ele;
+	}
+	
+	/**
+	 * Removes an element from the DOM.
+	 */
+	static removeElement(ele) {
+		return ele.parentNode.removeChild(ele);
+	}
+	
+	/**
+	 * Creates a new style element with the specified CSS and returns it.
+	 */
+	static createStyle(styles) {
+		return this.createElement("style", document.head, "", styles);
+	}
+	
+	/**
+	 * Utility function to save an object into a cookie.
+	 */
+	static saveToCookie(name, obj, expiresInSeconds) {
+		const expires = new Date(Date.now() + 1000 * expiresInSeconds).toUTCString();
+		document.cookie = name + "=" + encodeURIComponent(JSON.stringify(obj)) + ";path=/;expires=" + expires;
+	}
+	
+	/**
+	 * Utility function to load an object from a cookie.
+	 */
+	static loadFromCookie(name) {
+		const value = document.cookie.replace(new RegExp("(?:(?:^|.*;\\s*)" + name + "\\s*\\=\\s*([^;]*).*$)|^.*$"), "$1");
+		return value.length ? JSON.parse(decodeURIComponent(value)) : null;
+	}
+	
+	/**
+	 * Returns internal React state object of an element.
+	 */
+	static getReactProps(ele) {
+		const keys = Object.keys(ele || {});
+		let key = keys.find(key => key.startsWith("__reactInternalInstance"));
+		
+		if (key) {
+			// noinspection JSUnresolvedVariable
+			return ele[key].memoizedProps;
+		}
+		
+		key = keys.find(key => key.startsWith("__reactProps$"));
+		return key ? ele[key] : null;
+	}
+}

app/Resources/Tracker/scripts/gui.js

@@ -0,0 +1,157 @@
+// noinspection FunctionWithInconsistentReturnsJS
+const GUI = (function() {
+	let controller = null;
+	let settings = null;
+	
+	const stateChangedEvent = () => {
+		if (settings) {
+			settings.ui.cbAutoscroll.checked = SETTINGS.autoscroll;
+			settings.ui.optsAfterFirstMsg[SETTINGS.afterFirstMsg].checked = true;
+			settings.ui.optsAfterSavedMsg[SETTINGS.afterSavedMsg].checked = true;
+			
+			const autoscrollDisabled = !SETTINGS.autoscroll;
+			Object.values(settings.ui.optsAfterFirstMsg).forEach(ele => ele.disabled = autoscrollDisabled);
+			Object.values(settings.ui.optsAfterSavedMsg).forEach(ele => ele.disabled = autoscrollDisabled);
+		}
+	};
+	
+	return {
+		showController() {
+			if (controller) {
+				return;
+			}
+			
+			const html = `
+<button id='dht-ctrl-close'>X</button>
+<button id='dht-ctrl-settings'>Settings</button>
+<button id='dht-ctrl-track'></button>
+<p id='dht-ctrl-status'>Waiting</p>`;
+			
+			controller = {
+				styles: DOM.createStyle(`/*[CSS-CONTROLLER]*/`),
+				ele: DOM.createElement("div", document.body, "dht-ctrl", html)
+			};
+			
+			controller.ui = {
+				btnSettings: DOM.id("dht-ctrl-settings"),
+				btnTrack: DOM.id("dht-ctrl-track"),
+				btnClose: DOM.id("dht-ctrl-close"),
+				textStatus: DOM.id("dht-ctrl-status")
+			};
+			
+			controller.ui.btnSettings.addEventListener("click", () => {
+				this.showSettings();
+			});
+			
+			controller.ui.btnTrack.addEventListener("click", () => {
+				const isTracking = !STATE.isTracking();
+				STATE.setIsTracking(isTracking);
+				
+				if (!isTracking) {
+					controller.ui.textStatus.innerText = "Stopped";
+				}
+			});
+			
+			controller.ui.btnClose.addEventListener("click", () => {
+				this.hideController();
+				window.DHT_ON_UNLOAD.forEach(f => f());
+				delete window.DHT_ON_UNLOAD;
+				delete window.DHT_LOADED;
+			});
+			
+			STATE.onTrackingStateChanged(isTracking => {
+				controller.ui.btnTrack.innerText = isTracking ? "Pause Tracking" : "Start Tracking";
+				controller.ui.btnSettings.disabled = isTracking;
+			});
+			
+			SETTINGS.onSettingsChanged(stateChangedEvent);
+			stateChangedEvent();
+		},
+		
+		hideController() {
+			if (controller) {
+				DOM.removeElement(controller.ele);
+				DOM.removeElement(controller.styles);
+				controller = null;
+			}
+		},
+		
+		showSettings() {
+			if (settings) {
+				return;
+			}
+			
+			const radio = (type, id, label) => "<label><input id='dht-cfg-" + type + "-" + id + "' name='dht-" + type + "' type='radio'> " + label + "</label><br>";
+			const html = `
+<label><input id='dht-cfg-autoscroll' type='checkbox'> Autoscroll</label><br>
+<br>
+<label>After reaching the first message in channel...</label><br>
+${radio("afm", "nothing", "Do Nothing")}
+${radio("afm", "pause", "Pause Tracking")}
+${radio("afm", "switch", "Switch to Next Channel")}
+<br>
+<label>After reaching a previously saved message...</label><br>
+${radio("asm", "nothing", "Do Nothing")}
+${radio("asm", "pause", "Pause Tracking")}
+${radio("asm", "switch", "Switch to Next Channel")}
+<p id='dht-cfg-note'>It is recommended to disable link and image previews to avoid putting unnecessary strain on your browser.</p>`;
+			
+			settings = {
+				styles: DOM.createStyle(`/*[CSS-SETTINGS]*/`),
+				overlay: DOM.createElement("div", document.body, "dht-cfg-overlay"),
+				ele: DOM.createElement("div", document.body, "dht-cfg", html)
+			};
+			
+			settings.overlay.addEventListener("click", () => {
+				this.hideSettings();
+			});
+			
+			settings.ui = {
+				cbAutoscroll: DOM.id("dht-cfg-autoscroll"),
+				optsAfterFirstMsg: {},
+				optsAfterSavedMsg: {}
+			};
+			
+			settings.ui.optsAfterFirstMsg[CONSTANTS.AUTOSCROLL_ACTION_NOTHING] = DOM.id("dht-cfg-afm-nothing");
+			settings.ui.optsAfterFirstMsg[CONSTANTS.AUTOSCROLL_ACTION_PAUSE] = DOM.id("dht-cfg-afm-pause");
+			settings.ui.optsAfterFirstMsg[CONSTANTS.AUTOSCROLL_ACTION_SWITCH] = DOM.id("dht-cfg-afm-switch");
+			
+			settings.ui.optsAfterSavedMsg[CONSTANTS.AUTOSCROLL_ACTION_NOTHING] = DOM.id("dht-cfg-asm-nothing");
+			settings.ui.optsAfterSavedMsg[CONSTANTS.AUTOSCROLL_ACTION_PAUSE] = DOM.id("dht-cfg-asm-pause");
+			settings.ui.optsAfterSavedMsg[CONSTANTS.AUTOSCROLL_ACTION_SWITCH] = DOM.id("dht-cfg-asm-switch");
+			
+			settings.ui.cbAutoscroll.addEventListener("change", () => {
+				SETTINGS.autoscroll = settings.ui.cbAutoscroll.checked;
+			});
+			
+			Object.keys(settings.ui.optsAfterFirstMsg).forEach(key => {
+				settings.ui.optsAfterFirstMsg[key].addEventListener("click", () => {
+					SETTINGS.afterFirstMsg = key;
+				});
+			});
+			
+			Object.keys(settings.ui.optsAfterSavedMsg).forEach(key => {
+				settings.ui.optsAfterSavedMsg[key].addEventListener("click", () => {
+					SETTINGS.afterSavedMsg = key;
+				});
+			});
+			
+			stateChangedEvent();
+		},
+		
+		hideSettings() {
+			if (settings) {
+				DOM.removeElement(settings.overlay);
+				DOM.removeElement(settings.ele);
+				DOM.removeElement(settings.styles);
+				settings = null;
+			}
+		},
+		
+		setStatus(state) {
+			if (controller) {
+				controller.ui.textStatus.innerText = state;
+			}
+		}
+	};
+})();

app/Resources/Tracker/scripts/settings.js

@@ -0,0 +1,65 @@
+const CONSTANTS = {
+	AUTOSCROLL_ACTION_NOTHING: "optNothing",
+	AUTOSCROLL_ACTION_PAUSE: "optPause",
+	AUTOSCROLL_ACTION_SWITCH: "optSwitch"
+};
+
+let IS_FIRST_RUN = false;
+
+const SETTINGS = (function() {
+	const settingsChangedEvents = [];
+	
+	const saveSettings = function() {
+		DOM.saveToCookie("DHT_SETTINGS", root, 60 * 60 * 24 * 365 * 5);
+	};
+	
+	const triggerSettingsChanged = function(property) {
+		for (const callback of settingsChangedEvents) {
+			callback(property);
+		}
+		
+		saveSettings();
+	};
+	
+	const defineTriggeringProperty = function(obj, property, value) {
+		const name = "_" + property;
+		
+		Object.defineProperty(obj, property, {
+			get: (() => obj[name]),
+			set: (value => {
+				obj[name] = value;
+				triggerSettingsChanged(property);
+			})
+		});
+		
+		obj[name] = value;
+	};
+	
+	let loaded = DOM.loadFromCookie("DHT_SETTINGS");
+	
+	if (!loaded) {
+		loaded = {
+			"_autoscroll": true,
+			"_afterFirstMsg": CONSTANTS.AUTOSCROLL_ACTION_PAUSE,
+			"_afterSavedMsg": CONSTANTS.AUTOSCROLL_ACTION_PAUSE
+		};
+		
+		IS_FIRST_RUN = true;
+	}
+	
+	const root = {
+		onSettingsChanged(callback) {
+			settingsChangedEvents.push(callback);
+		}
+	};
+	
+	defineTriggeringProperty(root, "autoscroll", loaded._autoscroll);
+	defineTriggeringProperty(root, "afterFirstMsg", loaded._afterFirstMsg);
+	defineTriggeringProperty(root, "afterSavedMsg", loaded._afterSavedMsg);
+	
+	if (IS_FIRST_RUN) {
+		saveSettings();
+	}
+	
+	return root;
+})();

app/Resources/Tracker/scripts/state.js

@@ -0,0 +1,314 @@
+// noinspection FunctionWithInconsistentReturnsJS
+const STATE = (function() {
+	let serverPort = -1;
+	let serverToken = "";
+	
+	const post = function(endpoint, json) {
+		const aborter = new AbortController();
+		const timeout = window.setTimeout(() => aborter.abort(), 5000);
+		
+		return new Promise(async (resolve, reject) => {
+			let r;
+			try {
+				r = await fetch("http://127.0.0.1:" + serverPort + endpoint, {
+					method: "POST",
+					headers: {
+						"Content-Type": "application/json",
+						"X-DHT-Token": serverToken
+					},
+					credentials: "omit",
+					redirect: "error",
+					body: JSON.stringify(json),
+					signal: aborter.signal
+				});
+			} catch (e) {
+				if (e.name === "AbortError") {
+					reject({ status: "DISCONNECTED" });
+					return;
+				}
+				else {
+					reject({ status: "ERROR", message: e.message });
+					return;
+				}
+			} finally {
+				window.clearTimeout(timeout);
+			}
+			
+			if (r.status === 200) {
+				resolve(r);
+				return;
+			}
+			
+			try {
+				const message = await r.text();
+				reject({ status: "ERROR", message });
+			} catch (e) {
+				reject({ status: "ERROR", message: e.message });
+			}
+		});
+	};
+	
+	const trackingStateChangedListeners = [];
+	let isTracking = false;
+	
+	const addedChannels = new Set();
+	const addedUsers = new Set();
+	
+	/**
+	 * @name DiscordUser
+	 * @property {String} id
+	 * @property {String} username
+	 * @property {String} discriminator
+	 * @property {String} [avatar]
+	 * @property {Boolean} [bot]
+	 */
+	
+	/**
+	 * @name DiscordMessage
+	 * @property {String} id
+	 * @property {String} channel_id
+	 * @property {DiscordUser} author
+	 * @property {String} content
+	 * @property {Timestamp} timestamp
+	 * @property {Timestamp|null} editedTimestamp
+	 * @property {DiscordAttachment[]} attachments
+	 * @property {Object[]} embeds
+	 * @property {DiscordMessageReaction[]} [reactions]
+	 * @property {DiscordMessageReference} [messageReference]
+	 * @property {Number} type
+	 * @property {String} state
+	 */
+	
+	/**
+	 * @name DiscordAttachment
+	 * @property {String} id
+	 * @property {String} filename
+	 * @property {String} [content_type]
+	 * @property {String} size
+	 * @property {String} url
+	 */
+	
+	/**
+	 * @name DiscordMessageReaction
+	 * @property {DiscordEmoji} emoji
+	 * @property {Number} count
+	 */
+	
+	/**
+	 * @name DiscordMessageReference
+	 * @property {String} [message_id]
+	 */
+	
+	/**
+	 * @name DiscordEmoji
+	 * @property {String|null} id
+	 * @property {String|null} name
+	 * @property {Boolean} animated
+	 */
+	
+	/**
+	 * @name Timestamp
+	 * @property {Function} toDate
+	 */
+	
+	return {
+		setup(port, token) {
+			serverPort = port;
+			serverToken = token;
+		},
+		
+		onTrackingStateChanged(callback) {
+			trackingStateChangedListeners.push(callback);
+			callback(isTracking);
+		},
+		
+		isTracking() {
+			return isTracking;
+		},
+		
+		setIsTracking(state) {
+			if (isTracking !== state) {
+				isTracking = state;
+				
+				if (isTracking) {
+					addedChannels.clear();
+					addedUsers.clear();
+				}
+				
+				for (const callback of trackingStateChangedListeners) {
+					callback(isTracking);
+				}
+			}
+		},
+		
+		async addDiscordChannel(serverInfo, channelInfo) {
+			if (addedChannels.has(channelInfo.id)) {
+				return;
+			}
+			
+			const server = {
+				id: serverInfo.id,
+				name: serverInfo.name,
+				type: serverInfo.type
+			};
+			
+			const channel = {
+				id: channelInfo.id,
+				name: channelInfo.name
+			};
+			
+			if ("extra" in channelInfo) {
+				const extra = channelInfo.extra;
+				
+				if ("parent" in extra) {
+					channel.parent = extra.parent;
+				}
+				
+				channel.position = extra.position;
+				channel.topic = extra.topic;
+				channel.nsfw = extra.nsfw;
+			}
+			
+			await post("/track-channel", { server, channel });
+			addedChannels.add(channelInfo.id);
+		},
+		
+		/**
+		 * @param {String} channelId
+		 * @param {DiscordMessage[]} discordMessageArray
+		 */
+		async addDiscordMessages(channelId, discordMessageArray) {
+			// https://discord.com/developers/docs/resources/channel#message-object-message-types
+			discordMessageArray = discordMessageArray.filter(msg => (msg.type === 0 || msg.type === 19 || msg.type === 21) && msg.state === "SENT");
+			
+			if (discordMessageArray.length === 0) {
+				return false;
+			}
+			
+			const userInfo = {};
+			let hasNewUsers = false;
+			
+			for (const msg of discordMessageArray) {
+				const user = msg.author;
+				
+				if (!addedUsers.has(user.id)) {
+					const obj = {
+						id: user.id,
+						name: user.username
+					};
+					
+					if (user.avatar) {
+						obj.avatar = user.avatar;
+					}
+					
+					if (!user.bot) {
+						// noinspection JSUnusedGlobalSymbols
+						obj.discriminator = user.discriminator;
+					}
+					
+					userInfo[user.id] = obj;
+					hasNewUsers = true;
+				}
+			}
+			
+			if (hasNewUsers) {
+				await post("/track-users", Object.values(userInfo));
+				
+				for (const id of Object.keys(userInfo)) {
+					addedUsers.add(id);
+				}
+			}
+			
+			const response = await post("/track-messages", discordMessageArray.map(msg => {
+				const obj = {
+					id: msg.id,
+					sender: msg.author.id,
+					channel: msg.channel_id,
+					text: msg.content,
+					timestamp: msg.timestamp.toDate().getTime()
+				};
+				
+				if (msg.editedTimestamp !== null) {
+					// noinspection JSUnusedGlobalSymbols
+					obj.editTimestamp = msg.editedTimestamp.toDate().getTime();
+				}
+				
+				if (msg.messageReference !== null) {
+					// noinspection JSUnusedGlobalSymbols
+					obj.repliedToId = msg.messageReference.message_id;
+				}
+				
+				if (msg.attachments.length > 0) {
+					obj.attachments = msg.attachments.map(attachment => {
+						const mapped = {
+							id: attachment.id,
+							name: attachment.filename,
+							size: attachment.size,
+							url: attachment.url
+						};
+						
+						if (attachment.content_type) {
+							mapped.type = attachment.content_type;
+						}
+						
+						return mapped;
+					});
+				}
+				
+				if (msg.embeds.length > 0) {
+					obj.embeds = msg.embeds.map(embed => {
+						const mapped = {};
+						
+						for (const key of Object.keys(embed)) {
+							if (key === "id") {
+								continue;
+							}
+							
+							if (key === "rawTitle") {
+								mapped["title"] = embed[key];
+							}
+							else if (key === "rawDescription") {
+								mapped["description"] = embed[key];
+							}
+							else {
+								mapped[key] = embed[key];
+							}
+						}
+						
+						return JSON.stringify(mapped);
+					});
+				}
+				
+				if (msg.reactions.length > 0) {
+					obj.reactions = msg.reactions.map(reaction => {
+						const emoji = reaction.emoji;
+						
+						const mapped = {
+							count: reaction.count
+						};
+						
+						if (emoji.id) {
+							mapped.id = emoji.id;
+						}
+						
+						if (emoji.name) {
+							mapped.name = emoji.name;
+						}
+						
+						if (emoji.animated) {
+							// noinspection JSUnusedGlobalSymbols
+							mapped.isAnimated = emoji.animated;
+						}
+						
+						return mapped;
+					});
+				}
+				
+				return obj;
+			}));
+			
+			const anyNewMessages = await response.text();
+			return anyNewMessages === "1";
+		}
+	};
+})();

app/Resources/Tracker/styles/controller.css

@@ -0,0 +1,31 @@
+#app-mount > div[class*="app-"] {
+  margin-bottom: 48px !important;
+}
+
+#dht-ctrl {
+  position: absolute;
+  bottom: 0;
+  width: 100%;
+  height: 48px;
+  background-color: #fff;
+}
+
+#dht-ctrl button {
+  height: 32px;
+  margin: 8px 0 8px 8px;
+  font-size: 16px;
+  padding: 0 12px;
+  background-color: #7289da;
+  color: #fff;
+  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.75);
+}
+
+#dht-ctrl button:disabled {
+  background-color: #7a7a7a;
+  cursor: default;
+}
+
+#dht-ctrl p {
+  display: inline-block;
+  margin: 14px 12px;
+}

app/Resources/Tracker/styles/settings.css

@@ -0,0 +1,28 @@
+#dht-cfg-overlay {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  background-color: #000;
+  opacity: 0.5;
+  display: block;
+  z-index: 1000;
+}
+
+#dht-cfg {
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  width: 800px;
+  height: 262px;
+  margin-left: -400px;
+  margin-top: -131px;
+  padding: 8px;
+  background-color: #fff;
+  z-index: 1001;
+}
+
+#dht-cfg-note {
+  margin-top: 22px;
+}

app/Resources/Viewer/index.html

@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title>Discord Offline History</title>
+    
+    <script type="text/javascript">
+		window.DHT_EMBEDDED = "/*[ARCHIVE]*/";
+		/*[JS]*/
+    </script>
+    <style>
+      /*[CSS]*/
+    </style>
+  </head>
+  <body>
+    <div id="menu">
+      <button id="btn-settings">Settings</button>
+      
+      <div> <!-- needed to stop the select from messing up -->
+        <select id="opt-messages-per-page">
+          <option value="50">50 messages per page&nbsp;</option>
+          <option value="100">100 messages per page&nbsp;</option>
+          <option value="250">250 messages per page&nbsp;</option>
+          <option value="500">500 messages per page&nbsp;</option>
+          <option value="1000">1000 messages per page&nbsp;</option>
+          <option value="0">All messages&nbsp;</option>
+        </select>
+      </div>
+      
+      <div class="nav">
+        <button id="nav-first" data-nav="first" class="icon">&laquo;</button>
+        <button id="nav-prev" data-nav="prev" class="icon">&lsaquo;</button>
+        <button id="nav-pick" data-nav="pick">Page <span id="nav-page-current">1</span>/<span id="nav-page-total">?</span></button>
+        <button id="nav-next" data-nav="next" class="icon">&rsaquo;</button>
+        <button id="nav-last" data-nav="last" class="icon">&raquo;</button>
+      </div>
+      
+      <div class="splitter"></div>
+      
+      <div> <!-- needed to stop the select from messing up -->
+        <select id="opt-messages-filter">
+          <option value="">No filter&nbsp;</option>
+          <option value="user">Filter messages by user&nbsp;</option>
+          <option value="contents">Filter messages by contents&nbsp;</option>
+          <option value="withimages">Only messages with images&nbsp;</option>
+          <option value="withdownloads">Only messages with downloads&nbsp;</option>
+          <option value="edited">Only edited messages&nbsp;</option>
+        </select>
+      </div>
+      
+      <div id="opt-filter-list">
+        <select id="opt-filter-user" data-filter-type="user">
+          <option value="">Select user...</option>
+        </select>
+        <input id="opt-filter-contents" type="text" data-filter-type="contents" placeholder="Messages containing...">
+        <input type="hidden" data-filter-type="withimages" value="1">
+        <input type="hidden" data-filter-type="withdownloads" value="1">
+        <input type="hidden" data-filter-type="edited" value="1">
+      </div>
+      
+      <div class="separator"></div>
+      
+      <button id="btn-about">About</button>
+    </div>
+    
+    <div id="app">
+      <div id="channels"></div>
+      <div id="messages"></div>
+    </div>
+    
+    <div id="modal">
+      <div id="overlay"></div>
+      <div id="dialog"></div>
+    </div>
+  </body>
+</html>

app/Resources/Viewer/scripts/bootstrap.js

@@ -0,0 +1,39 @@
+document.addEventListener("DOMContentLoaded", () => {
+	DISCORD.setup();
+	GUI.setup();
+	
+	GUI.onOptionMessagesPerPageChanged(() => {
+		STATE.setMessagesPerPage(GUI.getOptionMessagesPerPage());
+	});
+	
+	STATE.setMessagesPerPage(GUI.getOptionMessagesPerPage());
+	
+	GUI.onOptMessageFilterChanged(filter => {
+		STATE.setActiveFilter(filter);
+	});
+	
+	GUI.onNavigationButtonClicked(action => {
+		STATE.updateCurrentPage(action);
+	});
+	
+	STATE.onUsersRefreshed(users => {
+		GUI.updateUserList(users);
+	});
+	
+	STATE.onChannelsRefreshed((channels, selected) => {
+		GUI.updateChannelList(channels, selected, STATE.selectChannel);
+	});
+	
+	STATE.onMessagesRefreshed(messages => {
+		GUI.updateNavigation(STATE.getCurrentPage(), STATE.getPageCount());
+		GUI.updateMessageList(messages);
+		GUI.scrollMessagesToTop();
+	});
+	
+	try {
+		STATE.uploadFile(JSON.parse(window.DHT_EMBEDDED));
+	} catch (e) {
+		console.error(e);
+		alert("Could not parse embedded file, see console for details.");
+	}
+});

app/Resources/Viewer/scripts/discord.js

@@ -0,0 +1,257 @@
+const DISCORD = (function() {
+	const regex = {
+		formatBold: /\*\*([\s\S]+?)\*\*(?!\*)/g,
+		formatItalic: /(.)?\*([\s\S]+?)\*(?!\*)/g,
+		formatUnderline: /__([\s\S]+?)__(?!_)/g,
+		formatStrike: /~~([\s\S]+?)~~(?!~)/g,
+		formatCodeInline: /(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/g,
+		formatCodeBlock: /```(?:([A-z0-9\-]+?)\n+)?\n*([^]+?)\n*```/g,
+		formatUrl: /(\b(?:https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,
+		formatUrlNoEmbed: /<(\b(?:https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])>/ig,
+		specialEscapedBacktick: /\\`/g,
+		specialEscapedSingle: /\\([*\\])/g,
+		specialEscapedDouble: /\\__|_\\_|\\_\\_|\\~~|~\\~|\\~\\~/g,
+		specialUnescaped: /([*_~\\])/g,
+		mentionRole: /&lt;@&(\d+?)&gt;/g,
+		mentionUser: /&lt;@!?(\d+?)&gt;/g,
+		mentionChannel: /&lt;#(\d+?)&gt;/g,
+		customEmojiStatic: /&lt;:([^:]+):(\d+?)&gt;/g,
+		customEmojiAnimated: /&lt;a:([^:]+):(\d+?)&gt;/g
+	};
+	
+	let templateChannelServer;
+	let templateChannelPrivate;
+	let templateMessageNoAvatar;
+	let templateMessageWithAvatar;
+	let templateUserAvatar;
+	let templateAttachmentDownload;
+	let templateEmbedImage;
+	let templateEmbedRich;
+	let templateEmbedRichNoDescription;
+	let templateEmbedUrl;
+	let templateEmbedUnsupported;
+	let templateReaction;
+	let templateReactionCustom;
+	
+	const processMessageContents = function(contents) {
+		let processed = DOM.escapeHTML(contents.replace(regex.formatUrlNoEmbed, "$1"));
+		
+		if (SETTINGS.enableFormatting) {
+			const escapeHtmlMatch = (full, match) => "&#" + match.charCodeAt(0) + ";";
+			
+			processed = processed
+				.replace(regex.specialEscapedBacktick, "&#96;")
+				.replace(regex.formatCodeBlock, (full, ignore, match) => "<code class='block'>" + match.replace(regex.specialUnescaped, escapeHtmlMatch) + "</code>")
+				.replace(regex.formatCodeInline, (full, ignore, match) => "<code class='inline'>" + match.replace(regex.specialUnescaped, escapeHtmlMatch) + "</code>")
+				.replace(regex.specialEscapedSingle, escapeHtmlMatch)
+				.replace(regex.specialEscapedDouble, full => full.replace(/\\/g, "").replace(/(.)/g, escapeHtmlMatch))
+				.replace(regex.formatBold, "<b>$1</b>")
+				.replace(regex.formatItalic, (full, pre, match) => pre === "\\" ? full : (pre || "") + "<i>" + match + "</i>")
+				.replace(regex.formatUnderline, "<u>$1</u>")
+				.replace(regex.formatStrike, "<s>$1</s>");
+		}
+		
+		const animatedEmojiExtension = SETTINGS.enableAnimatedEmoji ? "gif" : "png";
+		
+		// noinspection HtmlUnknownTarget
+		processed = processed
+			.replace(regex.formatUrl, "<a href='$1' target='_blank' rel='noreferrer'>$1</a>")
+			.replace(regex.mentionChannel, (full, match) => "<span class='link mention-chat'>#" + STATE.getChannelName(match) + "</span>")
+			.replace(regex.mentionUser, (full, match) => "<span class='link mention-user' title='#" + (STATE.getUserTag(match) || "????") + "'>@" + STATE.getUserName(match) + "</span>")
+			.replace(regex.customEmojiStatic, "<img src='https://cdn.discordapp.com/emojis/$2.png' alt=':$1:' title=':$1:' class='emoji'>")
+			.replace(regex.customEmojiAnimated, "<img src='https://cdn.discordapp.com/emojis/$2." + animatedEmojiExtension + "' alt=':$1:' title=':$1:' class='emoji'>");
+		
+		return "<p>" + processed + "</p>";
+	};
+	
+	return {
+		setup() {
+			templateChannelServer = new TEMPLATE([
+				"<div data-channel='{id}'>",
+				"<div class='info' title='{topic}'><strong class='name'>#{name}</strong>{nsfw}<span class='tag'>{msgcount}</span></div>",
+				"<span class='server'>{server.name} ({server.type})</span>",
+				"</div>"
+			].join(""));
+			
+			templateChannelPrivate = new TEMPLATE([
+				"<div data-channel='{id}'>",
+				"<div class='info'><strong class='name'>{name}</strong><span class='tag'>{msgcount}</span></div>",
+				"<span class='server'>({server.type})</span>",
+				"</div>"
+			].join(""));
+			
+			templateMessageNoAvatar = new TEMPLATE([
+				"<div>",
+				"<div class='reply-message'>{reply}</div>",
+				"<h2><strong class='username' title='#{user.tag}'>{user.name}</strong><span class='info time'>{timestamp}</span>{edit}{jump}</h2>",
+				"<div class='message'>{contents}{embeds}{attachments}</div>",
+				"{reactions}",
+				"</div>"
+			].join(""));
+			
+			templateMessageWithAvatar = new TEMPLATE([
+				"<div>",
+				"<div class='reply-message reply-message-with-avatar'>{reply}</div>",
+				"<div class='avatar-wrapper'>",
+				"<div class='avatar'>{avatar}</div>",
+				"<div>",
+				"<h2><strong class='username' title='#{user.tag}'>{user.name}</strong><span class='info time'>{timestamp}</span>{edit}{jump}</h2>",
+				"<div class='message'>{contents}{embeds}{attachments}</div>",
+				"{reactions}",
+				"</div>",
+				"</div>",
+				"</div>"
+			].join(""));
+			
+			templateUserAvatar = new TEMPLATE([
+				"<img src='https://cdn.discordapp.com/avatars/{id}/{path}.webp?size=128' alt=''>"
+			].join(""));
+			
+			// noinspection HtmlUnknownTarget
+			templateAttachmentDownload = new TEMPLATE([
+				"<a href='{url}' class='embed download'>Download {filename}</a>"
+			].join(""));
+			
+			// noinspection HtmlUnknownTarget
+			templateEmbedImage = new TEMPLATE([
+				"<a href='{url}' class='embed thumbnail'><img src='{src}' alt='(image attachment not found)'></a><br>"
+			].join(""));
+			
+			// noinspection HtmlUnknownTarget
+			templateEmbedRich = new TEMPLATE([
+				"<div class='embed download'><a href='{url}' class='title'>{title}</a><p class='desc'>{description}</p></div>"
+			].join(""));
+			
+			// noinspection HtmlUnknownTarget
+			templateEmbedRichNoDescription = new TEMPLATE([
+				"<div class='embed download'><a href='{url}' class='title'>{title}</a></div>"
+			].join(""));
+			
+			// noinspection HtmlUnknownTarget
+			templateEmbedUrl = new TEMPLATE([
+				"<a href='{url}' class='embed download'>{url}</a>"
+			].join(""));
+			
+			templateEmbedUnsupported = new TEMPLATE([
+				"<div class='embed download'><p>(Unsupported embed)</p></div>"
+			].join(""));
+			
+			templateReaction = new TEMPLATE([
+				"<span class='reaction-wrapper'><span class='reaction-emoji'>{n}</span><span class='count'>{c}</span></span>"
+			].join(""));
+			
+			templateReactionCustom = new TEMPLATE([
+				"<span class='reaction-wrapper'><img src='https://cdn.discordapp.com/emojis/{id}.{ext}' alt=':{n}:' title=':{n}:' class='reaction-emoji-custom'><span class='count'>{c}</span></span>"
+			].join(""));
+		},
+		
+		isImageAttachment(attachment) {
+			const dot = attachment.url.lastIndexOf(".");
+			const ext = dot === -1 ? "" : attachment.url.substring(dot).toLowerCase();
+			return ext === ".png" || ext === ".gif" || ext === ".jpg" || ext === ".jpeg";
+		},
+		
+		getChannelHTML(channel) { // noinspection FunctionWithInconsistentReturnsJS
+			return (channel.server.type === "server" ? templateChannelServer : templateChannelPrivate).apply(channel, (property, value) => {
+				if (property === "nsfw") {
+					return value ? "<span class='tag'>NSFW</span>" : "";
+				}
+			});
+		},
+		
+		getMessageHTML(message) { // noinspection FunctionWithInconsistentReturnsJS
+			return (SETTINGS.enableUserAvatars ? templateMessageWithAvatar : templateMessageNoAvatar).apply(message, (property, value) => {
+				if (property === "avatar") {
+					return value ? templateUserAvatar.apply(value) : "";
+				}
+				else if (property === "user.tag") {
+					return value ? value : "????";
+				}
+				else if (property === "timestamp") {
+					return DOM.getHumanReadableTime(value);
+				}
+				else if (property === "contents") {
+					return value && value.length > 0 ? processMessageContents(value) : "";
+				}
+				else if (property === "embeds") {
+					if (!value) {
+						return "";
+					}
+					
+					return value.map(embed => {
+						if (!embed.url) {
+							return templateEmbedUnsupported.apply(embed);
+						}
+						else if ("image" in embed && embed.image.url) {
+							return SETTINGS.enableImagePreviews ? templateEmbedImage.apply({ url: embed.url, src: embed.image.url }) : "";
+						}
+						else if ("thumbnail" in embed && embed.thumbnail.url) {
+							return SETTINGS.enableImagePreviews ? templateEmbedImage.apply({ url: embed.url, src: embed.thumbnail.url }) : "";
+						}
+						else if ("title" in embed && "description" in embed) {
+							return templateEmbedRich.apply(embed);
+						}
+						else if ("title" in embed) {
+							return templateEmbedRichNoDescription.apply(embed);
+						}
+						else {
+							return templateEmbedUrl.apply(embed);
+						}
+					}).join("");
+				}
+				else if (property === "attachments") {
+					if (!value) {
+						return "";
+					}
+					
+					return value.map(attachment => {
+						if (this.isImageAttachment(attachment) && SETTINGS.enableImagePreviews) {
+							return templateEmbedImage.apply({ url: attachment.url, src: attachment.url });
+						}
+						else {
+							const sliced = attachment.url.split("/");
+							
+							return templateAttachmentDownload.apply({
+								"url": attachment.url,
+								"filename": sliced[sliced.length - 1]
+							});
+						}
+					}).join("");
+				}
+				else if (property === "edit") {
+					return value ? "<span class='info edited'>Edited " + DOM.getHumanReadableTime(value) + "</span>" : "";
+				}
+				else if (property === "jump") {
+					return STATE.hasActiveFilter ? "<span class='info jump' data-jump='" + value + "'>Jump to message</span>" : "";
+				}
+				else if (property === "reply") {
+					if (!value) {
+						return value === null ? "<span class='reply-contents reply-missing'>(replies to an unknown message)</span>" : "";
+					}
+					
+					const user = "<span class='reply-username' title='#" + (value.user.tag ? value.user.tag : "????") + "'>" + value.user.name + "</span>";
+					const avatar = SETTINGS.enableUserAvatars && value.avatar ? "<span class='reply-avatar'>" + templateUserAvatar.apply(value.avatar) + "</span>" : "";
+					const contents = value.contents ? "<span class='reply-contents'>" + processMessageContents(value.contents) + "</span>" : "";
+					
+					return "<span class='jump' data-jump='" + value.id + "'>Jump to reply</span><span class='user'>" + avatar + user + "</span>" + contents;
+				}
+				else if (property === "reactions"){
+					if (!value){
+						return "";
+					}
+					
+					return "<div class='reactions'>" + value.map(reaction => {
+						if ("id" in reaction){
+							// noinspection JSUnusedGlobalSymbols, JSUnresolvedVariable
+							reaction.ext = reaction.a && SETTINGS.enableAnimatedEmoji ? "gif" : "png";
+							return templateReactionCustom.apply(reaction);
+						}
+						else {
+							return templateReaction.apply(reaction);
+						}
+					}).join("") + "</div>";
+				}
+			});
+		}
+	};
+})();