TF-4265 Additional config for include and exclude keywords

configurations/attachment_keywords.json

@@ -0,0 +1,4 @@
+{
+  "includeList": [],
+  "excludeList": []
+}

docs/configuration/attachment_keywords_configuration.md

@@ -0,0 +1,77 @@
+## Configuration for Attachment Keyword Detection
+
+### Context
+
+* When a user composes an email, the system detects if the content implies an attachment (e.g., "Please find attached...") but no file is attached.
+* We need a flexible way to add specific keywords (Include) or ignore specific tokens (Exclude) without modifying the source code.
+
+### How to config
+
+1. Configuration File Location
+
+   * The configuration is managed in the JSON file: `configurations\attachment_keywords.json`
+   * This file must be declared in `pubspec.yaml` under `assets`.
+
+2. JSON Structure
+
+The file consists of two main arrays:
+
+```json
+{
+  "includeList": [
+    "invoice",
+    "estimate",
+    "báo giá"
+  ],
+  "excludeList": [
+    "signature-logo",
+    "no-reply",
+    "icon-app"
+  ]
+}
+
+```
+
+* `includeList`: List of keywords to **add** to the detection dictionary.
+  * Used when the default dictionary (hardcoded in app) is missing specific business terms.
+  * Matches are case-insensitive.
+  * Example: Adding `"cv"` will trigger the alert for "Attached is my CV".
+
+
+* `excludeList`: List of tokens to **ignore/block** from detection.
+  * Used to prevent false positives where a keyword exists but is part of a system string or signature.
+  * The filter checks the full surrounding token (e.g., if you exclude `"signature-logo"`, the text `"check signature-logo"` will be ignored even if it contains "signature").
+
+
+
+3. Application Logic
+
+* **Loading:** The file is loaded lazily and cached in memory upon the first request (Singleton pattern).
+* **Execution Flow:**
+  1. User clicks "Send".
+  2. App loads `includeList` and merges it with the default multi-language dictionary.
+  3. Regex scans the text.
+  4. Matches are filtered against the `excludeList`.
+  5. If valid keywords remain and no file is attached, a warning dialog is shown.
+
+
+
+4. Example Customization
+
+If you want to support a new document type called "Blueprints" and ignore a specific CSS class in the email body:
+
+**Modify `configurations\attachment_keywords.json`:**
+
+```json
+{
+  "includeList": [
+    "blueprints",
+    "bản vẽ"
+  ],
+  "excludeList": [
+    "css-class-attachment",
+    "div-id-file"
+  ]
+}
+
+```

lib/features/composer/presentation/composer_controller.dart

@@ -890,6 +890,12 @@ class ComposerController extends BaseController
       emailSubject: subjectEmail.value ?? '',
       emailContent: emailContent,
     );
+
+    if (!context.mounted) {
+      logWarning('ComposerController::_prepareToSendMessages: CONTEXT IS NOT MOUNTED');
+      return;
+    }
+
     if (attachmentKeywords.isNotEmpty &&
         uploadController.attachmentsUploaded.isEmpty) {
       showAttachmentReminderModal(

lib/features/composer/presentation/extensions/attachment_detection_extension.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:tmail_ui_user/features/base/mixin/message_dialog_action_manager.dart';
 import 'package:tmail_ui_user/features/composer/presentation/composer_controller.dart';
 import 'package:tmail_ui_user/features/composer/presentation/manager/attachment_text_detector.dart';
+import 'package:tmail_ui_user/features/composer/presentation/manager/keyword_config_manager.dart';
 import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
 import 'package:tmail_ui_user/main/routes/route_navigation.dart';
 
@@ -16,8 +17,12 @@ extension AttachmentDetectionExtension on ComposerController {
     try {
       final fullContent = '$emailSubject $emailContent';
       final plainText = HtmlUtils.extractPlainText(fullContent);
-      final keywords =
-          await AttachmentTextDetector.matchedKeywordsUnique(plainText);
+      final keywordConfig = await KeywordConfigManager().getConfig();
+      final keywords = await AttachmentTextDetector.matchedKeywordsUnique(
+        plainText,
+        includeList: keywordConfig.includeList,
+        excludeList: keywordConfig.excludeList,
+      );
       if (keywords.isEmpty) {
         return [];
       } else {

lib/features/composer/presentation/manager/attachment_keywords_configuration_parser.dart

@@ -0,0 +1,26 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:core/utils/app_logger.dart';
+import 'package:core/utils/config/app_config_parser.dart';
+import 'package:tmail_ui_user/features/composer/presentation/model/keyword_config.dart';
+
+class AttachmentKeywordsConfigurationParser
+    extends AppConfigParser<KeywordConfig> {
+  @override
+  Future<KeywordConfig> parse(String value) async {
+    try {
+      final jsonObject = jsonDecode(value);
+      return KeywordConfig.fromJson(jsonObject);
+    } catch (e) {
+      logWarning('AttachmentKeywordsConfigurationParser::parse(): $e');
+      rethrow;
+    }
+  }
+
+  @override
+  Future<KeywordConfig> parseData(ByteData data) {
+    throw UnimplementedError();
+  }
+}

lib/features/composer/presentation/manager/keyword_config_manager.dart

@@ -0,0 +1,43 @@
+import 'package:core/utils/app_logger.dart';
+import 'package:core/utils/config/app_config_loader.dart';
+import 'package:tmail_ui_user/features/composer/presentation/manager/attachment_keywords_configuration_parser.dart';
+import 'package:tmail_ui_user/features/composer/presentation/model/keyword_config.dart';
+import 'package:tmail_ui_user/main/utils/app_config.dart';
+
+class KeywordConfigManager {
+  static final KeywordConfigManager _instance = KeywordConfigManager._();
+
+  factory KeywordConfigManager() => _instance;
+
+  KeywordConfigManager._();
+
+  KeywordConfig? _cachedConfig;
+  AppConfigLoader? _appConfigLoader;
+
+  static const String _configPath =
+      AppConfig.attachmentKeywordsConfigurationPath;
+
+  Future<KeywordConfig> getConfig() async {
+    if (_cachedConfig != null) {
+      return _cachedConfig!;
+    }
+
+    try {
+      _appConfigLoader ??= AppConfigLoader();
+      _cachedConfig = await _appConfigLoader?.load<KeywordConfig>(
+        _configPath,
+        AttachmentKeywordsConfigurationParser(),
+      );
+    } catch (e) {
+      logWarning(
+          "KeywordConfigManager::getConfig:Error loading keyword config: $e");
+      _cachedConfig = const KeywordConfig();
+    }
+
+    return _cachedConfig!;
+  }
+
+  void clearCache() {
+    _cachedConfig = null;
+  }
+}

lib/features/composer/presentation/model/keyword_config.dart

@@ -0,0 +1,23 @@
+import 'package:equatable/equatable.dart';
+import 'package:json_annotation/json_annotation.dart';
+
+part 'keyword_config.g.dart';
+
+@JsonSerializable(includeIfNull: false, explicitToJson: true)
+class KeywordConfig with EquatableMixin {
+  final List<String> includeList;
+  final List<String> excludeList;
+
+  const KeywordConfig({
+    this.includeList = const [],
+    this.excludeList = const [],
+  });
+
+  factory KeywordConfig.fromJson(Map<String, dynamic> json) =>
+      _$KeywordConfigFromJson(json);
+
+  Map<String, dynamic> toJson() => _$KeywordConfigToJson(this);
+
+  @override
+  List<Object?> get props => [includeList, excludeList];
+}

lib/main/utils/app_config.dart

@@ -12,6 +12,7 @@ class AppConfig {
   static const int defaultLimitAutocomplete = 8;
 
   static const String appDashboardConfigurationPath = "configurations/app_dashboard.json";
+  static const String attachmentKeywordsConfigurationPath = "configurations/attachment_keywords.json";
   static const String iOSKeychainSharingGroupId = 'KUT463DS29.com.linagora.ios.teammail.shared';
   static const String iOSKeychainSharingService = 'com.linagora.ios.teammail.sessions';
   static const String saasPlatform = 'saas';