import 'dart:developer';

import 'package:fluffychat/pangea/constants/language_keys.dart';
import 'package:fluffychat/pangea/controllers/language_list_controller.dart';
import 'package:fluffychat/pangea/controllers/pangea_controller.dart';
import 'package:fluffychat/pangea/extensions/pangea_room_extension/pangea_room_extension.dart';
import 'package:fluffychat/pangea/models/class_model.dart';
import 'package:fluffychat/pangea/models/language_model.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:matrix/matrix.dart';
import 'package:sentry_flutter/sentry_flutter.dart';

import '../widgets/user_settings/p_language_dialog.dart';

class LanguageController {
  late PangeaController _pangeaController;

  LanguageController(PangeaController pangeaController) {
    _pangeaController = pangeaController;
  }
  //show diloag when user does not have languages selected
  showDialogOnEmptyLanguage(BuildContext dialogContext, Function callback) {
    if (_pangeaController.userController.userModel?.profile == null) {
      debugger(when: kDebugMode);
      Sentry.addBreadcrumb(
        Breadcrumb(
          message: 'calling showDialogOnEmptyLanguagae with empty user',
        ),
      );
      return;
    }
    if (!languagesSet) {
      pLanguageDialog(dialogContext, callback);
    }
  }

  bool get languagesSet =>
      _userL1Code != null &&
      _userL2Code != null &&
      _userL1Code!.isNotEmpty &&
      _userL2Code!.isNotEmpty &&
      _userL1Code != LanguageKeys.unknownLanguage &&
      _userL2Code != LanguageKeys.unknownLanguage;

  String? get _userL1Code {
    final source =
        _pangeaController.userController.userModel?.profile?.sourceLanguage;
    return source == null || source.isEmpty ? null : source;
  }

  String? get _userL2Code {
    final target =
        _pangeaController.userController.userModel?.profile?.targetLanguage;
    return target == null || target.isEmpty ? null : target;
  }

  LanguageModel? get userL1 {
    return _userL1Code != null ? PangeaLanguage.byLangCode(_userL1Code!) : null;
  }

  LanguageModel? get userL2 {
    return _userL2Code != null ? PangeaLanguage.byLangCode(_userL2Code!) : null;
  }

  String? activeL1Code({String? roomID}) {
    final String? activeL2 = activeL2Code(roomID: roomID);
    if (roomID == null || activeL2 != _userL1Code) {
      return _userL1Code;
    }
    final ClassSettingsModel? classContext = _pangeaController
        .matrixState.client
        .getRoomById(roomID)
        ?.firstLanguageSettings;
    final String? classL1 = classContext?.dominantLanguage;
    if (classL1 == LanguageKeys.mixedLanguage ||
        classL1 == LanguageKeys.multiLanguage ||
        classL1 == null) {
      if (_userL2Code != _userL1Code) {
        return _userL2Code;
      }
      return LanguageKeys.unknownLanguage;
    }
    return classL1;
  }

  /// Class languages override user languages within a class context
  String? activeL2Code({String? roomID}) {
    if (roomID == null) {
      return _userL2Code;
    }
    final ClassSettingsModel? classContext = _pangeaController
        .matrixState.client
        .getRoomById(roomID)
        ?.firstLanguageSettings;
    return classContext?.targetLanguage ?? _userL2Code;
  }

  LanguageModel? activeL1Model({String? roomID}) {
    final activeL1 = activeL1Code(roomID: roomID);
    return activeL1 != null ? PangeaLanguage.byLangCode(activeL1) : null;
  }

  LanguageModel? activeL2Model({String? roomID}) {
    final activeL2 = activeL2Code(roomID: roomID);
    final model = activeL2 != null ? PangeaLanguage.byLangCode(activeL2) : null;
    return model;
  }

  bool equalActiveL1AndActiveL2({Room? room}) =>
      activeL1Code() == activeL2Code(roomID: room?.id);
}