import 'package:google_sign_in/google_sign_in.dart';
import 'package:stacked/stacked.dart';
import 'package:stacked_services/stacked_services.dart';
import 'package:yimaru_app/app/app.router.dart';
import '../../../app/app.locator.dart';
import '../../../services/google_auth_service.dart';

class OnboardingViewModel extends ReactiveViewModel
    with FormStateHelper
    implements FormViewModel {
  // Dependency injection

  final _navigationService = locator<NavigationService>();

  final _googleAuthService = locator<GoogleAuthService>();

  @override
  List<ListenableServiceMixin> get listenableServices => [_googleAuthService];

  // Google user
  GoogleSignInAccount? get _googleUser => _googleAuthService.googleUser;

  GoogleSignInAccount? get googleUser => _googleUser;

  // Navigation
  int _currentPage = 0;

  int get currentPage => _currentPage;

  int _previousPage = 0;

  int get previousPage => _previousPage;

  // Full name
  bool _focusFullName = false;

  bool get focusFullName => _focusFullName;

  // Educational background
  final List<String> _educationalBackgrounds = [
    'No formal education',
    'Primary school',
    'Secondary /High school',
    'College / Diploma',
    'Bachelor’s and above',
  ];

  List<String> get educationalBackgrounds => _educationalBackgrounds;

  String? _selectedEducationalBackground;

  String? get selectedEducationalBackground => _selectedEducationalBackground;

  // Gender
  final List<String> _genders = [
    'Male',
    'Female',
  ];

  List<String> get genders => _genders;

  String? _selectedGender;

  String? get selectedGender => _selectedGender;

  // Age group
  final List<Map<String, dynamic>> _ageGroups = [
    {
      'Under 13': 'UNDER_13',
    },
    {'13-17': '13_17'},
    {
      '18-24': '18_24',
    },
    {
      '25-34': '25_34',
    },
    {
      '35-44': '35_44',
    },
    {
      '45-54': '45_54',
    },
    {'55-Plus': '55_PLUS'},
  ];

  List<Map<String, dynamic>> get ageGroups => _ageGroups;

  Map<String, dynamic>? _selectedAgeGroup;

  Map<String, dynamic>? get selectedAgeGroup => _selectedAgeGroup;

  // Occupation
  bool _focusOccupation = false;

  bool get focusOccupation => _focusOccupation;

  // Country
  String _selectedCountry = 'Ethiopia';

  String get selectedCountry => _selectedCountry;

  // Region
  bool _focusRegion = false;

  bool get focusRegion => _focusRegion;

  // Learning goal
  String? _selectedLearningGoal;

  String? get selectedLearningGoal => _selectedLearningGoal;

  final List<Map<String, dynamic>> _learningGoals = [
    {
      'icon': 0,
      'title': 'Learn to Speak English',
      'subtitle': 'I know some English, but i want to learn to speak it',
    },
    {
      'icon': 1,
      'title': 'Practice Speaking English',
      'subtitle': 'I already speak English, but I want more practice.',
    },
    {
      'icon': 2,
      'title': 'Skill-based Courses',
      'subtitle': 'I want courses for IELTS, TOEFL, Duolingo, or work.',
    },
  ];

  List<Map<String, dynamic>> get learningGoals => _learningGoals;

  // Learning reason
  bool _showLanguageGoalTextBox = false;

  bool get showLanguageGoalTextBox => _showLanguageGoalTextBox;

  bool _focusLanguageGoal = false;

  bool get focusLanguageGoal => _focusLanguageGoal;

  String? _selectedLanguageGoal;

  String? get selectedLanguageGoal => _selectedLanguageGoal;

  final List<String> _languageGoals = [
    'Speak confidently at work or school',
    'Travel or handle daily situations',
    'Connect with family or friends',
    'General skills expansion',
    'Other'
  ];

  List<String> get languageGoals => _languageGoals;

  // Challenges
  bool _showChallengeTextBox = false;

  bool get showChallengeTextBox => _showChallengeTextBox;

  bool _focusChallenge = false;

  bool get focusChallenge => _focusChallenge;

  String? _selectedChallenge;

  String? get selectedChallenge => _selectedChallenge;

  final List<String> _challenges = [
    'Pronunciation',
    'Finding words or grammar quickly',
    'Feeling nervous or lacking confidence',
    'Understanding accents or fast speech',
    'Other'
  ];

  List<String> get challenges => _challenges;

  // Topic
  bool _showTopicTextBox = false;

  bool get showTopicTextBox => _showTopicTextBox;

  bool _focusTopic = false;

  bool get focusTopic => _focusTopic;

  String? _selectedTopic;

  String? get selectedTopic => _selectedTopic;

  final List<String> _topics = [
    'Food & Cooking',
    ' Hobbies, Sports, Music',
    'Tech, News, Business',
    'Travel, Places, Culture',
    'Other'
  ];

  List<String> get topics => _topics;

  // Languages
  final List<Map<String, dynamic>> _languages = [
    {'code': 'አማ', 'language': 'አማርኛ'},
    {'code': 'EN', 'language': 'English'},
  ];

  List<Map<String, dynamic>> get languages => _languages;

  Map<String, dynamic> _selectedLanguage = {
    'code': 'EN',
    'language': 'English'
  };

  Map<String, dynamic> get selectedLanguage => _selectedLanguage;

  // User data
  final Map<String, dynamic> _userData = {};

  Map<String, dynamic> get userData => _userData;

  // Full name
  void setFullNameFocus() {
    _focusFullName = true;
    rebuildUi();
  }

  // Education background
  void setSelectedEducationalBackground(String value) {
    _selectedEducationalBackground = value;
    rebuildUi();
  }

  bool isSelectedEducationalBackground(String value) =>
      _selectedEducationalBackground == value;

  // Gender
  void setSelectedGender(String gender) {
    _selectedGender = gender;
    rebuildUi();
  }

  bool isSelectedGender(String value) => _selectedGender == value;

  // Age group
  void setSelectedAgeGroup(Map<String, dynamic> value) {
    _selectedAgeGroup = value;

    rebuildUi();
  }

  bool isSelectedAgeGroup(Map<String, dynamic> value) =>
      _selectedAgeGroup == value;

  // Occupation
  void setOccupationFocus() {
    _focusOccupation = true;
    rebuildUi();
  }

  // Country
  List<String> getCountries() => [
        "Afghanistan",
        "Albania",
        "Algeria",
        "Andorra",
        "Angola",
        "Argentina",
        "Armenia",
        "Australia",
        "Austria",
        "Azerbaijan",
        "Bahrain",
        "Bangladesh",
        "Belarus",
        "Belgium",
        "Belize",
        "Benin",
        "Bhutan",
        "Bolivia",
        "Bosnia and Herzegovina",
        "Botswana",
        "Brazil",
        "Brunei",
        "Bulgaria",
        "Burkina Faso",
        "Burundi",
        "Cambodia",
        "Cameroon",
        "Canada",
        "Chad",
        "Chile",
        "China",
        "Colombia",
        "Comoros",
        "Congo",
        "Costa Rica",
        "Croatia",
        "Cuba",
        "Cyprus",
        "Czech Republic",
        "Denmark",
        "Djibouti",
        "Dominican Republic",
        "Ecuador",
        "Egypt",
        "El Salvador",
        "Eritrea",
        "Estonia",
        "Eswatini",
        "Ethiopia",
        "Finland",
        "France",
        "Gabon",
        "Gambia",
        "Georgia",
        "Germany",
        "Ghana",
        "Greece",
        "Guatemala",
        "Guinea",
        "Haiti",
        "Honduras",
        "Hungary",
        "Iceland",
        "India",
        "Indonesia",
        "Iran",
        "Iraq",
        "Ireland",
        "Israel",
        "Italy",
        "Jamaica",
        "Japan",
        "Jordan",
        "Kazakhstan",
        "Kenya",
        "Kuwait",
        "Kyrgyzstan",
        "Laos",
        "Latvia",
        "Lebanon",
        "Liberia",
        "Libya",
        "Lithuania",
        "Luxembourg",
        "Madagascar",
        "Malawi",
        "Malaysia",
        "Maldives",
        "Mali",
        "Malta",
        "Mexico",
        "Moldova",
        "Monaco",
        "Mongolia",
        "Morocco",
        "Mozambique",
        "Myanmar",
        "Namibia",
        "Nepal",
        "Netherlands",
        "New Zealand",
        "Nicaragua",
        "Niger",
        "Nigeria",
        "North Korea",
        "Norway",
        "Oman",
        "Pakistan",
        "Panama",
        "Paraguay",
        "Peru",
        "Philippines",
        "Poland",
        "Portugal",
        "Qatar",
        "Romania",
        "Russia",
        "Rwanda",
        "Saudi Arabia",
        "Senegal",
        "Serbia",
        "Singapore",
        "Slovakia",
        "Slovenia",
        "Somalia",
        "South Africa",
        "South Korea",
        "Spain",
        "Sri Lanka",
        "Sudan",
        "Sweden",
        "Switzerland",
        "Syria",
        "Taiwan",
        "Tajikistan",
        "Tanzania",
        "Thailand",
        "Tunisia",
        "Turkey",
        "Uganda",
        "Ukraine",
        "United Arab Emirates",
        "United Kingdom",
        "United States",
        "Uruguay",
        "Uzbekistan",
        "Venezuela",
        "Vietnam",
        "Yemen",
        "Zambia",
        "Zimbabwe"
      ];

  void setSelectedCountry(String value) {
    _selectedCountry = value;
    rebuildUi();
  }

  // Region
  void setRegionFocus() {
    _focusRegion = true;
    rebuildUi();
  }

  // Learning goal
  void setSelectedLearningGoal(String value) {
    _selectedLearningGoal = value;
    rebuildUi();
  }

  bool isSelectedLearningGoal(String value) => _selectedLearningGoal == value;

  // Learning reason
  void setLanguageGoalFocus() {
    _focusLanguageGoal = true;
    rebuildUi();
  }

  void setSelectedLanguageGoal(String value) {
    _selectedLanguageGoal = value;
    if (value.toLowerCase() == 'other') {
      _showLanguageGoalTextBox = true;
    } else {
      if (_showLanguageGoalTextBox) {
        _showLanguageGoalTextBox = false;
        _focusLanguageGoal = false;
      }
    }
    rebuildUi();
  }

  bool isSelectedLanguageGoal(String value) => _selectedLanguageGoal == value;

  // Challenges
  void setChallengesFocus() {
    _focusChallenge = true;
    rebuildUi();
  }

  void setSelectedChallenge(String value) {
    _selectedChallenge = value;
    if (value.toLowerCase() == 'other') {
      _showChallengeTextBox = true;
    } else {
      if (_showChallengeTextBox) {
        _showChallengeTextBox = false;
        _focusChallenge = false;
      }
    }
    rebuildUi();
  }

  bool isSelectedChallenge(String value) => _selectedChallenge == value;

  // Topics
  void setTopicsFocus() {
    _focusTopic = true;
    rebuildUi();
  }

  void setSelectedTopic(String value) {
    _selectedTopic = value;
    if (value.toLowerCase() == 'other') {
      _showTopicTextBox = true;
    } else {
      if (_showTopicTextBox) {
        _showTopicTextBox = false;
        _focusTopic = false;
      }
    }
    rebuildUi();
  }

  bool isSelectedTopic(String value) => _selectedTopic == value;

  // Language
  void setSelectedLanguage(Map<String, dynamic> value) {
    _selectedLanguage = value;
    rebuildUi();
  }

  bool isSelectedLanguage(String value) =>
      _selectedLanguage['language'] == value;

  // Add user data
  void addUserData(Map<String, dynamic> data) {
    _userData.addAll(data);
  }

  void clearUserData() {
    _userData.clear();
  }

  // Form reset

  // Reset full name form screen
  void resetFullNameFormScreen() {
    _focusFullName = false;
    rebuildUi();
  }

  // Reset gender form screen
  void resetGenderFormScreen() {
    _selectedGender = null;
    rebuildUi();
  }

  // Reset age group form screen
  void resetAgeGroupFormScreen() {
    _selectedAgeGroup = null;
    rebuildUi();
  }

  // Reset educational background form screen
  void resetEducationalBackgroundFormScreen() {
    _selectedEducationalBackground = null;
    rebuildUi();
  }

  // Reset occupation form screen
  void resetOccupationFormScreen() {
    _focusOccupation = false;
    rebuildUi();
  }

  // Reset country region form screen
  void resetCountryRegionFormScreen() {
    _selectedCountry = 'Ethiopia';
    rebuildUi();
  }

  // Reset learning goal form screen
  void resetLearningGoalFormScreen() {
    _selectedLearningGoal = null;
    rebuildUi();
  }

  // Reset language goal form screen
  void resetLanguageGoalFormScreen() {
    _focusLanguageGoal = false;
    _selectedLanguageGoal = null;
    _showLanguageGoalTextBox = false;
    rebuildUi();
  }

  // Reset challenge form screen
  void resetChallengeFormScreen() {
    _focusChallenge = false;
    _selectedChallenge = null;
    _showChallengeTextBox = false;

    rebuildUi();
  }

  // Reset topic form screen
  void resetTopicFormScreen() {
    _focusTopic = false;
    _selectedTopic = null;
    _showTopicTextBox = false;
    rebuildUi();
  }

  // In-app navigation
  void next({int? page}) async {
    if (page == null) {
      if (_previousPage != 0) {
        _currentPage = _previousPage;
      } else {
        _currentPage++;
      }
    } else {
      _previousPage = _currentPage;
      _currentPage = page;
    }
    rebuildUi();
  }

  void goBack() {
    if (_currentPage == 0) {
      _navigationService.back();
    } else {
      _currentPage--;

      rebuildUi();
    }
  }

  // Navigation
  Future<void> navigateToLanguage() async =>
      await _navigationService.navigateToLanguageView();

  Future<void> navigateToAssessment() async =>
      await _navigationService.navigateToAssessmentView(data: _userData);


}