import 'dart:async';
import 'dart:developer';

import 'package:appinio_swiper/appinio_swiper.dart';
import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:mohem_flutter_app/api/marathon/demo_marathon_repo.dart';
import 'package:mohem_flutter_app/classes/utils.dart';
import 'package:mohem_flutter_app/config/routes.dart';
import 'package:mohem_flutter_app/models/disclosure/disclosure_details_model.dart';
import 'package:mohem_flutter_app/models/disclosure/disclosure_question_model.dart';
import 'package:mohem_flutter_app/ui/disclosure/widgets/disclosure_question_card.dart';

class DisclosureProvider extends ChangeNotifier {
  //************************************************ VARIABLES **********************************************************

  final AppinioSwiperController swiperController = AppinioSwiperController();
  DisclosureQuestionsOptionStatus currentQuestionSelectionStatus = DisclosureQuestionsOptionStatus.unSelected;
  DisclosureDetailsModel disclosureDetailsModel = DisclosureDetailsModel();
  List<DisclosureCardContent> cardContentList = <DisclosureCardContent>[];
  DisclosureQuestionModel currentQuestion = DisclosureQuestionModel();
  List<DisclosureQuestionCardStatus> answerStatusesList = <DisclosureQuestionCardStatus>[];
  DisclosureQuestionCardStatus questionCardStatus = DisclosureQuestionCardStatus.question;
  int? selectedOptionIndex;
  String? selectedOptionId;
  int? totalQualifiers;
  Locale savedLocale = const Locale("en", "US");

  bool iAmWinner = false;
  bool isGettingQualifiers = false;
  bool isPrivilegedWithMarathon = false;

  bool _isLoading = false;

  bool get isLoading => _isLoading;

  set isLoading(bool value) {
    _isLoading = value;
    notifyListeners();
  }

  bool _isButtonEnabled = false;

  bool get isButtonEnabled => _isButtonEnabled;

  set isButtonEnabled(bool value) {
    _isButtonEnabled = value;
    notifyListeners();
  }

  int _currentQuestionNumber = 0;

  int get currentQuestionNumber => _currentQuestionNumber;

  set currentQuestionNumber(int value) {
    _currentQuestionNumber = value;
    notifyListeners();
  }

  String currentAdditionalText = "";

  void updateCurrentAdditionalText(String value) {
    currentAdditionalText = value;
    notifyListeners();
  }

  void updateCurrentSelectionYesNo(DisclosureQuestionsOptionStatus value) {
    currentQuestionSelectionStatus = value;
    notifyListeners();
  }

  //************************************************ FUNCTIONS **********************************************************

  Future<void> callNextQuestionApi() async {
    if (currentQuestionNumber < (disclosureDetailsModel.totalQuestions!)) {
      if (currentQuestionNumber == 0) {
        for (int i = 1; i <= disclosureDetailsModel.totalQuestions!; i++) {
          cardContentList.add(const DisclosureCardContent());
        }
        currentQuestion = await DisclosureRepo().getDisclosureNextQuestion(currentQuestionNumber: currentQuestionNumber);
        updateCardData();
        if (Utils.isLoading) {
          Utils.hideLoading(AppRoutes.navigatorKey.currentContext!);
        }
        Navigator.pushReplacementNamed(AppRoutes.navigatorKey.currentContext!, AppRoutes.disclosureScreen);
      } else {
        currentQuestion = await DisclosureRepo().getDisclosureNextQuestion(currentQuestionNumber: currentQuestionNumber);
        updateCardData();
      }
      notifyListeners();
    }
  }

  Future<void> callPreviousQuestionApi() async {
    currentQuestion = await DisclosureRepo().getDisclosureNextQuestion(currentQuestionNumber: currentQuestionNumber - 2);
    updateCardData(isForPrevious: true);
    notifyListeners();
  }

  void updateCardData({bool isForPrevious = false}) {
    if (isForPrevious) {
      selectedOptionIndex = null;
      currentQuestionNumber--;

      cardContentList.add(const DisclosureCardContent());
      cardContentList.add(const DisclosureCardContent());
      swiperController.swipeLeft();
      questionCardStatus = DisclosureQuestionCardStatus.question;
      notifyListeners();
      return;
    }
    if (currentQuestionNumber > 0) {
      swiperController.swipeRight();
    }

    selectedOptionIndex = null;
    currentQuestionNumber++;
    questionCardStatus = DisclosureQuestionCardStatus.question;
    notifyListeners();
  }

  void populateQuestionStatusesList() {
    answerStatusesList.clear();
    if (disclosureDetailsModel.totalQuestions != null) {
      for (int i = 0; i < disclosureDetailsModel.totalQuestions!; i++) {
        answerStatusesList.add(DisclosureQuestionCardStatus.question);
      }
      notifyListeners();
    }
  }

  void updateCurrentQuestionOptionStatus({required DisclosureQuestionsOptionStatus status, required int selectedOptIndex, required int correctOptionIndex}) {
    if (selectedOptIndex == 0) {
      updateCurrentSelectionYesNo(DisclosureQuestionsOptionStatus.correct);
    } else if (selectedOptIndex == 1) {
      updateCurrentSelectionYesNo(DisclosureQuestionsOptionStatus.wrong);
    }
    for (int i = 0; i < currentQuestion.questionOptions!.length; i++) {
      currentQuestion.questionOptions![i].optionStatus = DisclosureQuestionsOptionStatus.unSelected;
    }
    if (status == DisclosureQuestionsOptionStatus.wrong) {
      currentQuestion.questionOptions![correctOptionIndex].optionStatus = DisclosureQuestionsOptionStatus.correct; // if person's answer is wrong we have to show him the actual right answer
    }
    currentQuestion.questionOptions![selectedOptIndex].optionStatus = status;
    selectedOptionId = currentQuestion.questionOptions![selectedOptIndex].id;
    selectedOptionIndex = selectedOptIndex;
    notifyListeners();
  }

  void updateQuestionCardStatus(DisclosureQuestionCardStatus status) {
    questionCardStatus = status;
    notifyListeners();
  }

  void updateAnswerStatusesList(DisclosureQuestionCardStatus status) {
    answerStatusesList[currentQuestionNumber - 1] = status;
    notifyListeners();
  }

  void resetValues() async {
    _currentQuestionNumber = 0;
    iAmWinner = false;
    cardContentList.clear();
    isButtonEnabled = false;
    currentQuestion = DisclosureQuestionModel();
    if (answerStatusesList.isNotEmpty) {
      for (int i = 0; i < answerStatusesList.length; i++) {
        answerStatusesList[i] = DisclosureQuestionCardStatus.question;
      }
    }
    currentQuestionSelectionStatus = DisclosureQuestionsOptionStatus.unSelected;
    AppRoutes.navigatorKey.currentContext!.setLocale(savedLocale);
    notifyListeners();
  }

  Future<void> getDisclosureDetails() async {
    isLoading = true;
    notifyListeners();
    disclosureDetailsModel = await DisclosureRepo().getDisclosureDetails();
    populateQuestionStatusesList();
    isLoading = false;
    notifyListeners();
  }

  Future<void> onStartDisclosurePressed(BuildContext context) async {
    await callNextQuestionApi();
  }
}