import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:tm_app/data/repositories/auth_repository.dart';
import 'package:tm_app/data/services/model/company_profile_data/company_profile_data.dart';
import 'package:tm_app/data/services/model/company_profile_response/company_profile_response.dart';
import 'package:tm_app/data/services/model/profile_data/profile_data.dart';

import '../core/utils/result.dart';
import '../data/repositories/profile_repository.dart';
import '../data/services/model/logout_response/logout_response.dart';
import '../data/services/model/profile_response/profile_response.dart';
import 'auth_view_model.dart';

class ProfileViewModel with ChangeNotifier {
  final ProfileRepository _profileRepository;
  final AuthRepository _authRepository;
  final AuthViewModel _authViewModel;

  ProfileViewModel({
    required ProfileRepository profileRepository,
    required AuthRepository authRepository,
    required AuthViewModel authViewModel,
  }) : _profileRepository = profileRepository,
       _authRepository = authRepository,
       _authViewModel = authViewModel;

  bool _isLoading = false;
  String? _errorMessage;
  ProfileData? _profileData;
  CompanyProfileData? _companyProfileData;
  bool _loggedOut = false;

  // Notification info saved from FCM message in SharedPreferences
  String? _notifData;
  String? _notifFrom;
  String? _notifType;
  String? _notifKeys;
  String? _notifTitle;
  String? _notifBody;
  String? _notifWebLink;
  String? _notifAndroidLink;
  String? _notifWebImage;
  String? _notifAndroidImage;
  String? _notifWebClickAction;

  bool get isLoading => _isLoading;
  bool get loggedOut => _loggedOut;
  String? get errorMessage => _errorMessage;
  ProfileData? get profileData => _profileData;
  CompanyProfileData? get companyProfileData => _companyProfileData;

  // Expose notification info
  String? get notifData => _notifData;
  String? get notifFrom => _notifFrom;
  String? get notifType => _notifType;
  String? get notifKeys => _notifKeys;
  String? get notifTitle => _notifTitle;
  String? get notifBody => _notifBody;
  String? get notifWebLink => _notifWebLink;
  String? get notifAndroidLink => _notifAndroidLink;
  String? get notifWebImage => _notifWebImage;
  String? get notifAndroidImage => _notifAndroidImage;
  String? get notifWebClickAction => _notifWebClickAction;

  String get notifSummaryText {
    final parts = <String>[];
    if (_notifTitle != null && _notifTitle!.isNotEmpty)
      parts.add('Title: ${_notifTitle!}');
    if (_notifBody != null && _notifBody!.isNotEmpty)
      parts.add('Body: ${_notifBody!}');
    if (_notifType != null && _notifType!.isNotEmpty)
      parts.add('Type: ${_notifType!}');
    if (_notifFrom != null && _notifFrom!.isNotEmpty)
      parts.add('From: ${_notifFrom!}');
    if (_notifKeys != null && _notifKeys!.isNotEmpty)
      parts.add('Keys: ${_notifKeys!}');
    if (_notifWebLink != null && _notifWebLink!.isNotEmpty)
      parts.add('Web: ${_notifWebLink!}');
    if (_notifAndroidLink != null && _notifAndroidLink!.isNotEmpty)
      parts.add('Android: ${_notifAndroidLink!}');
    if (_notifWebImage != null && _notifWebImage!.isNotEmpty)
      parts.add('WebImg: ${_notifWebImage!}');
    if (_notifAndroidImage != null && _notifAndroidImage!.isNotEmpty)
      parts.add('AndroidImg: ${_notifAndroidImage!}');
    if (_notifWebClickAction != null && _notifWebClickAction!.isNotEmpty)
      parts.add('Click: ${_notifWebClickAction!}');
    if (_notifData != null && _notifData!.isNotEmpty)
      parts.add('Data: ${_notifData!}');
    return parts.isEmpty ? '-' : parts.join(' | ');
  }

  Future<void> getProfile() async {
    _isLoading = true;
    _errorMessage = null;
    notifyListeners();

    final result = await _profileRepository.getProfile();

    switch (result) {
      case Ok<ProfileResponse>():
        _profileData = result.value.data;
        break;
      case Error<ProfileResponse>():
        _errorMessage = result.error.toString();
        break;
    }
    _isLoading = false;
    notifyListeners();
    _errorMessage = null;
    notifyListeners();
  }

  Future<void> getCompanyProfile() async {
    _isLoading = true;
    _errorMessage = null;
    notifyListeners();

    final result = await _profileRepository.getCompanyProfile();

    switch (result) {
      case Ok<CompanyProfileResponse>():
        _companyProfileData = result.value.data;
        break;
      case Error<CompanyProfileResponse>():
        _errorMessage = result.error.toString();
        break;
    }
    _isLoading = false;
    notifyListeners();
    _errorMessage = null;
    notifyListeners();
  }

  Future<void> logout() async {
    _errorMessage = null;
    notifyListeners();

    final result = await _authRepository.logout();

    switch (result) {
      case Ok<LogoutResponse>():
        await _authViewModel.localLogout();
        _loggedOut = true;
        break;
      case Error<LogoutResponse>():
        _errorMessage = result.error.toString();
        break;
    }

    notifyListeners();
    _errorMessage = null;
    _loggedOut = false;
    notifyListeners();
  }

  Future<void> loadNotificationInfoFromPrefs() async {
    // Do not toggle global loading; this is a lightweight local load
    try {
      final prefs = await SharedPreferences.getInstance();
      _notifData = prefs.getString('notif_data');
      _notifFrom = prefs.getString('notif_from');
      _notifType = prefs.getString('notif_type');
      _notifKeys = prefs.getString('notif_keys');
      _notifTitle = prefs.getString('notif_title');
      _notifBody = prefs.getString('notif_body');
      _notifWebLink = prefs.getString('notif_web_link');
      _notifAndroidLink = prefs.getString('notif_android_link');
      _notifWebImage = prefs.getString('notif_web_image');
      _notifAndroidImage = prefs.getString('notif_android_image');
      _notifWebClickAction = prefs.getString('notif_web_click_action');
    } catch (e) {
      // Non-fatal; surface as errorMessage so UI can toast if listening
      _errorMessage = e.toString();
    }
    notifyListeners();
    _errorMessage = null;
    notifyListeners();
  }
}