Untitled

import 'package:base_architecture/data_layer/api/api_provider.dart';
import 'package:base_architecture/data_layer/models/api_models/Dto/categories_selections.dart';
import 'package:base_architecture/data_layer/models/api_models/books_models/book_model.dart';
import 'package:base_architecture/data_layer/models/api_models/categories_model.dart';
import 'package:base_architecture/data_layer/models/api_models/translated_name_model.dart';
import 'package:base_architecture/presentation/pages/categories/widgets/all_categories.dart';
import 'package:base_architecture/presentation/pages/categories/widgets/latest_versions.dart';
import 'package:base_architecture/presentation/pages/categories/widgets/marks.dart';
import 'package:base_architecture/presentation/pages/categories/widgets/others.dart';
import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'dart:convert';
import 'package:rx_shared_preferences/rx_shared_preferences.dart';

class CategoriesNotifier extends ChangeNotifier {
  //Main tabs
  final List<Tab> _tabs = [
    const Tab(child: Text('الفئات')),
    const Tab(child: Text('العلامات')),
    const Tab(child: Text('أحدث الاصدارات')),
    const Tab(child: Text('أخرى')),
  ];
  CategoriesItem firstSubCategory = CategoriesItem(
    id: null,
    translatedName: TranslatedNameModel(
      catNameAr: 'الكل',
      catNameEn: 'All',
      catNameHe: 'All',
    ),
    imageFullPath: '',
    soundFullPath: '',
    mainCategoryBooks: [],
  );
  CategoriesModel _mainCategories = CategoriesModel();
  CategoriesSelections _selections = CategoriesSelections();
  CategoriesModel get mainCategories => _mainCategories;
  CategoriesSelections get selections => _selections;
  final List<Book> _moreRecentlyAdded = [];
  List<Book> get moreRecentlyAdded => _moreRecentlyAdded;
  final List<Book> _moreForYou = [];
  List<Book> get moreForYou => _moreForYou;
  final List<Book> _moreWritersChoices = [];
  List<Book> get moreWritersChoices => _moreWritersChoices;
  final List<Book> _moreMostRead = [];
  List<Book> get moreMostRead => _moreMostRead;
  final List<Book> _moreDisplayedCategoriesBooks = [];
  List<Book> get moreDisplayedCategoriesBooks => _moreDisplayedCategoriesBooks;

  List<Tab> get tabs => _tabs;
  //Main Tabs
  //Main pages
  final List<Widget> _pages = [
    const AllCategories(),
    const Marks(),
    const LatestVersions(),
    const OthersPage(),
  ];
  List<Widget> get pages => _pages;
  //Main pages
  //Secondary Tabs
  final List<CategoriesItem> _secTabs0 = [
    CategoriesItem(
      id: null,
      translatedName: TranslatedNameModel(
        catNameAr: 'الكل',
        catNameEn: 'All',
        catNameHe: 'All',
      ),
      imageFullPath: '',
      soundFullPath: '',
      mainCategoryBooks: [],
    )
  ];
  List<CategoriesItem> _rxAllCategoriesTab = [
    CategoriesItem(
      id: null,
      translatedName: TranslatedNameModel(
        catNameAr: 'الكل',
        catNameEn: 'All',
        catNameHe: 'All',
      ),
      imageFullPath: '',
      soundFullPath: '',
      mainCategoryBooks: [],
    )
  ];
  List<CategoriesItem> _rxNewestCategoriesTab = [
    CategoriesItem(
      id: null,
      translatedName: TranslatedNameModel(
        catNameAr: 'الكل',
        catNameEn: 'All',
        catNameHe: 'All',
      ),
      imageFullPath: '',
      soundFullPath: '',
      mainCategoryBooks: [],
    )
  ];

  List<CategoriesItem> get rxAllCategoriesTab => _rxAllCategoriesTab;
  List<CategoriesItem> get rxNewestCategoriesTab => _rxNewestCategoriesTab;

  List<CategoriesItem> get secTabs0 => _secTabs0;
  final List<String> _moreCategory = [
    'الكل',
    'أطفال',
    'رعب',
    'خيال علمي',
    'تنمية بشرية',
  ];
  List<String> get moreCategory => _moreCategory;
  final List<String> _secTagsAr = [
    'الكل',
    'أ',
    'ب',
    'ت',
    'ث',
    'ج',
    'ح',
    'خ',
    'د',
    'ذ',
    'ر',
    'ز',
    'س',
    'ش',
    'ص',
    'ض',
    'ط',
    'ظ',
    'ع',
    'غ',
    'ف',
    'ق',
    'ك',
    'ل',
    'م',
    'ن',
    'ه',
    'و',
    'ي',
  ];
  List<String> get secTagsAr => _secTagsAr;
  final List<String> _secTagsEn = [
    'All'
        'A',
    'B',
    'C',
    'D',
    'E',
    'F',
    'G',
    'H',
    'I',
    'J',
    'K',
    'L',
    'M',
    'N',
    'O',
    'P',
    'Q',
    'R',
    'S',
    'T',
    'U',
    'V',
    'W',
    'X',
    'Y',
    'Z',
  ];
  List<String> get secTagsEn => _secTagsEn;
  final List<String> _secTabs2 = [
    'أطفال',
    'رعب',
    'خيال علمي',
    'قصص',
    'تنمية بشرية',
  ];
  List<String> get secTabs2 => _secTabs2;
  final List<String> _secTabs3 = [
    'الكُتّاب',
    'القُرّاء',
    'المترجمين',
    'دور النشر',
  ];
  List<String> get secTabs3 => _secTabs3;
  //set selected indes
  bool isLoading = false;
  int _myIndex = 0;
  int get myIndex => _myIndex;
  int _categoriesTabIndex = 0;
  int get categoriesTabIndex => _categoriesTabIndex;
  int _tagsTabIndex = 0;
  int get tagsTabIndex => _tagsTabIndex;
  int _recentTabIndex = 0;
  int get recentTabIndex => _recentTabIndex;
  int _otherTabIndex = 0;
  int get otherTabIndex => _otherTabIndex;

  int _moreCategoryIndex = 0;
  int get moreCategoryIndex => _moreCategoryIndex;
// There is next page or not
  bool _hasNextPage = true;
  bool get hasNextPage => _hasNextPage;
  bool _isFirstLoadRunning = false;
  bool get isFirstLoadRunning => _isFirstLoadRunning;
  bool _isLoadMoreRunning = false;
  bool get isLoadMoreRunning => _isLoadMoreRunning;
  int _pageIndex = 0;
  int get pageIndex => _pageIndex;
  setIndex(int value) {
    _myIndex = value;
    notifyListeners();
  }

  setCategoriesTabIndex(int value) {
    _categoriesTabIndex = value;
    notifyListeners();
  }

  setTagsTabIndex(int value) {
    _tagsTabIndex = value;
    notifyListeners();
  }

  setRecentTabIndex(int value) {
    _recentTabIndex = value;
    notifyListeners();
  }

  setOtherTabIndex(int value) {
    _otherTabIndex = value;
    notifyListeners();
  }

  setMoreCategoryIndex(int value) {
    _moreCategoryIndex = value;
    notifyListeners();
  }

  getSeeMoreRecentBooks() async {
    await ApiProvider(httpClient: Dio()).seeMoreRecentBooks().then(
      (value) {
        setRecentBooks(value.data!.first.books!);
      },
    );
  }

  void setRecentBooks(List<Book> books) {
    _moreRecentlyAdded.clear();

    for (var element in books) {
      _moreRecentlyAdded.add(element);
    }
    notifyListeners();
  }

  getSeeMoreForYouBooks() async {
    await ApiProvider(httpClient: Dio()).seeMoreForYouBooks().then(
      (value) {
        setForYouBooks(value.data!.first.books!);
      },
    );
  }

  void setForYouBooks(List<Book> books) {
    _moreForYou.clear();

    for (var element in books) {
      _moreForYou.add(element);
    }
    notifyListeners();
  }

  getSeeMoreWriterChoicesBooks() async {
    await ApiProvider(httpClient: Dio()).seeMoreWritersBooks().then(
      (value) {
        setWriterChoicesBooks(value.data!.first.books!);
      },
    );
  }

  void setWriterChoicesBooks(List<Book> books) {
    _moreWritersChoices.clear();

    for (var element in books) {
      _moreWritersChoices.add(element);
    }
    notifyListeners();
  }

  getSeeMoreMostReadBooks() async {
    await ApiProvider(httpClient: Dio()).seeMoreMostReadBooks().then(
      (value) {
        setMostReadBooks(value.data!.first.books!);
      },
    );
  }

  void setMostReadBooks(List<Book> books) {
    _moreMostRead.clear();

    for (var element in books) {
      _moreMostRead.add(element);
    }
    notifyListeners();
  }

  ScrollController categoriesScrollController = ScrollController();
  ScrollController tagsScrollController = ScrollController();
  ScrollController newestScrollController = ScrollController();
  ScrollController othersScrollController = ScrollController();
  // There is next page or not

  List<CategoriesItem> _categories = [];
  List<CategoriesItem> get categories => _categories;

  getAllCategories(CategoriesSelections selections) async {
    isLoading = true;
    WidgetsBinding.instance.addPostFrameCallback((_) {
      notifyListeners();
    });

    await ApiProvider(httpClient: Dio())
        .getAllCategories(selections, _pageIndex)
        .then(
      (value) {
        setCategories(value.data!.categories ?? []);
        _mainCategories = value;
        isLoading = false;
        notifyListeners();
        _isFirstLoadRunning = false;
      },
    ).catchError((error) {
      isLoading = false;
      notifyListeners();
    });
  }

  void setCategories(List<CategoriesItem> newCategories) async {
    _secTabs0.clear();
    _secTabs0.add(firstSubCategory);
    for (var element in newCategories) {
      _secTabs0.add(element);
    }

    await saveToSP();

    _pageIndex = _pageIndex + 5;
    if (newCategories.isNotEmpty) {
      _categories.addAll(newCategories);
      _isLoadMoreRunning = false;
      _hasNextPage = true;
    } else {
      // This means there is no more data
      // and therefore, we will not send another api request
      _hasNextPage = false;
      _isLoadMoreRunning = false;
    }
    _isFirstLoadRunning = false;
  }

  resetPageIndex() {
    _pageIndex = 0;
  }

  Future<void> saveToSP() async {
    final rxPrefs = await RxSharedPreferences.getInstance();
    if (selections.type == 'category') {
      String? exist = await rxPrefs.getString('all_categories');
      if (exist == null && _rxAllCategoriesTab.length != _secTabs0) {
        //Store categories in Shared preferences
        final String allCategoriesTabEncoded = CategoriesItem.encode(_secTabs0);
        await rxPrefs.setString('all_categories', allCategoriesTabEncoded);
      }
    } else if (selections.type == 'newest') {
      String? exist = await rxPrefs.getString('newest_category');
      if (exist == null && _rxNewestCategoriesTab.length != _secTabs0) {
        //Store categories in Shared preferences
        final String newestCategoriesTabEncoded =
            CategoriesItem.encode(_secTabs0);
        await rxPrefs.setString('newest_category', newestCategoriesTabEncoded);
      }
    }

    //extract categories from Shared preferences
    final String? rxAllTab = await rxPrefs.getString('all_categories');
    final String? rxNewestTab = await rxPrefs.getString('newest_category');

    _rxAllCategoriesTab = CategoriesItem.decode(rxAllTab ?? '');
    _rxNewestCategoriesTab = CategoriesItem.decode(rxNewestTab ?? '');
  }

  void setIsLoadMoreRunning(bool value) {
    _isLoadMoreRunning = value;
    notifyListeners();
  }
}