import 'dart:developer';

import 'package:flutter/foundation.dart';

import 'package:collection/collection.dart';
import 'package:sentry_flutter/sentry_flutter.dart';

import 'package:fluffychat/pangea/analytics_misc/client_analytics_extension.dart';
import 'package:fluffychat/pangea/analytics_misc/construct_type_enum.dart';
import 'package:fluffychat/pangea/analytics_misc/construct_use_model.dart';
import 'package:fluffychat/pangea/common/utils/error_handler.dart';
import 'package:fluffychat/pangea/extensions/pangea_room_extension.dart';
import 'package:fluffychat/pangea/learning_settings/constants/language_constants.dart';
import 'package:fluffychat/pangea/lemmas/lemma_info_repo.dart';
import 'package:fluffychat/pangea/lemmas/lemma_info_request.dart';
import 'package:fluffychat/pangea/lemmas/lemma_info_response.dart';
import 'package:fluffychat/pangea/lemmas/user_set_lemma_info.dart';
import 'package:fluffychat/pangea/morphs/morph_features_enum.dart';
import 'package:fluffychat/pangea/morphs/parts_of_speech_enum.dart';
import 'package:fluffychat/widgets/matrix.dart';

class ConstructIdentifier {
  final String lemma;
  final ConstructTypeEnum type;
  final String _category;

  ConstructIdentifier({
    required this.lemma,
    required this.type,
    required String category,
  }) : _category = category {
    if (type == ConstructTypeEnum.morph &&
        MorphFeaturesEnumExtension.fromString(category) ==
            MorphFeaturesEnum.Unknown) {
      debugger(when: kDebugMode);
      ErrorHandler.logError(
        e: Exception("Morph feature not found"),
        data: {
          "category": category,
          "lemma": lemma,
          "type": type,
        },
      );
    }
  }

  factory ConstructIdentifier.fromJson(Map<String, dynamic> json) {
    final categoryEntry = json['cat'] ?? json['categories'];
    String? category;
    if (categoryEntry != null) {
      if (categoryEntry is String) {
        category = categoryEntry;
      } else if (categoryEntry is List) {
        category = categoryEntry.first;
      }
    }

    final type = ConstructTypeEnum.values.firstWhereOrNull(
      (e) => e.string == json['type'],
    );

    if (type == null) {
      Sentry.addBreadcrumb(Breadcrumb(message: "type is: ${json['type']}"));
      Sentry.addBreadcrumb(Breadcrumb(data: json));
      throw Exception("Matching construct type not found");
    }

    try {
      return ConstructIdentifier(
        lemma: json['lemma'] as String,
        type: type,
        category: category ?? "",
      );
    } catch (e, s) {
      debugger(when: kDebugMode);
      ErrorHandler.logError(e: e, s: s, data: json);
      rethrow;
    }
  }

  String get category {
    if (_category.isEmpty) return "other";
    return _category.toLowerCase();
  }

  Map<String, dynamic> toJson() {
    return {
      'lemma': lemma,
      'type': type.string,
      'cat': category,
    };
  }

  // override operator == and hashCode
  @override
  bool operator ==(Object other) {
    if (identical(this, other)) return true;

    return other is ConstructIdentifier &&
        other.lemma == lemma &&
        other.type == type &&
        (category == other.category ||
            category.toLowerCase() == "other" ||
            other.category.toLowerCase() == "other");
  }

  @override
  int get hashCode {
    return lemma.hashCode ^ type.hashCode ^ category.hashCode;
  }

  String get string {
    return "$lemma:${type.string}-$category".toLowerCase();
  }

  static ConstructIdentifier? fromString(String s) {
    final parts = s.split(':');
    if (parts.length != 2) return null;
    final lemma = parts[0];
    final typeAndCategory = parts[1].split('-');
    if (typeAndCategory.length != 2) return null;
    final typeString = typeAndCategory[0];
    final category = typeAndCategory[1];

    final type = ConstructTypeEnum.values.firstWhereOrNull(
      (e) => e.string == typeString,
    );

    if (type == null) return null;

    return ConstructIdentifier(
      lemma: lemma,
      type: type,
      category: category,
    );
  }

  bool get isContentWord =>
      PartOfSpeechEnumExtensions.fromString(category)?.isContentWord ?? false;

  ConstructUses get constructUses =>
      MatrixState.pangeaController.getAnalytics.constructListModel
          .getConstructUses(
        this,
      ) ??
      ConstructUses(
        lemma: lemma,
        constructType: ConstructTypeEnum.morph,
        category: category,
        uses: [],
      );

  LemmaInfoRequest get _lemmaInfoRequest => LemmaInfoRequest(
        partOfSpeech: category,
        lemmaLang: MatrixState
                .pangeaController.languageController.userL2?.langCodeShort ??
            LanguageKeys.defaultLanguage,
        userL1: MatrixState
                .pangeaController.languageController.userL1?.langCodeShort ??
            LanguageKeys.defaultLanguage,
        lemma: lemma,
      );

  /// [lemmmaLang] if not set, assumed to be userL2
  Future<LemmaInfoResponse> getLemmaInfo() => LemmaInfoRepo.get(
        _lemmaInfoRequest,
      );

  List<String> get userSetEmoji => userLemmaInfo.emojis ?? [];

  UserSetLemmaInfo get userLemmaInfo {
    switch (type) {
      case ConstructTypeEnum.vocab:
        return MatrixState.pangeaController.matrixState.client
                .analyticsRoomLocal()
                ?.getUserSetLemmaInfo(this) ??
            UserSetLemmaInfo();
      case ConstructTypeEnum.morph:
        debugger(when: kDebugMode);
        ErrorHandler.logError(
          e: Exception("Morphs should not have userSetEmoji"),
          data: toJson(),
        );
        return UserSetLemmaInfo();
    }
  }

  Future<void> setUserLemmaInfo(UserSetLemmaInfo newLemmaInfo) async {
    final client = MatrixState.pangeaController.matrixState.client;
    final l2 = MatrixState.pangeaController.languageController.userL2;
    if (l2 == null) return;

    final analyticsRoom = await client.getMyAnalyticsRoom(l2);
    if (analyticsRoom == null) return;
    if (userLemmaInfo == newLemmaInfo) return;

    try {
      await analyticsRoom.setUserSetLemmaInfo(this, newLemmaInfo);
    } catch (err, s) {
      debugger(when: kDebugMode);
      ErrorHandler.logError(
        e: err,
        data: newLemmaInfo.toJson(),
        s: s,
      );
    }
  }
}