didvan-app/lib/views/home/home_state.dart

import 'dart:async';

import 'package:didvan/constants/assets.dart';
import 'package:didvan/models/category.dart';
import 'package:didvan/models/enums.dart';
import 'package:didvan/models/overview_data.dart';
import 'package:didvan/providers/core.dart';
import 'package:didvan/routes/routes.dart';
import 'package:didvan/services/network/request.dart';
import 'package:didvan/services/network/request_helper.dart';
import 'package:flutter/material.dart';

class MenuItemType {
  final String label;
  final String asset;
  final String link;

  MenuItemType({
    required this.label,
    required this.asset,
    required this.link,
  });
}

class HomeState extends CoreProvier {
  int _currentPageIndex = 0;
  String search = '';
  String lastSearch = '';
  Timer? timer;
  String? startDate;
  String? endDate;
  int page = 1;
  int lastPage = 1;
  final List<CategoryData> selectedCats = [];
  final List<OverviewData> results = [];
  late TabController tabController;
  int unreadCount = 0;
  final FocusNode searchFieldFocusNode = FocusNode();

  void resetFilters(bool isInit) {
    startDate = null;
    endDate = null;
    selectedCats.clear();
    search = '';
    lastSearch = '';
    if (!isInit) {
      searchAll(page: 1);
    }
  }

  set currentPageIndex(int value) {
    _currentPageIndex = value;
    notifyListeners();
  }

  int get currentPageIndex => _currentPageIndex;

  List<MenuItemType> menuItems = [];
  List<CategoryData> categories = [];

  bool get filtering =>
      selectedCats.isNotEmpty ||
      startDate != null ||
      endDate != null ||
      search.isNotEmpty;

  Future<void> searchMarks({required int page}) async {
    this.page = page;
    if (page == 1) {
      results.clear();
      appState = AppState.busy;
    }
    lastSearch = search;
    final service = RequestService(
      RequestHelper.searchAll(
        page: page,
        search: search,
        endDate: endDate,
        types: selectedCats.map((e) => e.id).toList(),
        startDate: startDate,
      ),
    );
    await service.httpGet();
    if (service.isSuccess) {
      lastPage = service.result['lastPage'];
      results.addAll(
        List<OverviewData>.from(
          service.result['contents'].map(
            (e) => OverviewData.fromJson(e),
          ),
        ),
      );
      lastPage = service.result['lastPage'];
      appState = AppState.idle;
      return;
    }
    appState = AppState.failed;
  }

  Future<void> searchAll({required int page}) async {
    this.page = page;
    if (page == 1) {
      results.clear();
      appState = AppState.busy;
    }
    lastSearch = search;
    final service = RequestService(
      RequestHelper.searchAll(
        page: page,
        search: search,
        endDate: endDate,
        types: selectedCats.map((e) => e.id).toList(),
        startDate: startDate,
      ),
    );
    await service.httpGet();
    if (service.isSuccess) {
      lastPage = service.result['lastPage'];
      unreadCount = service.result['unread'] ?? unreadCount;
      results.addAll(
        List<OverviewData>.from(
          service.result['contents'].map(
            (e) => OverviewData.fromJson(e),
          ),
        ),
      );
      lastPage = service.result['lastPage'];
      appState = AppState.idle;
      return;
    }
    appState = AppState.failed;
  }

  final categoryFilters = [
    CategoryData(id: 1, label: 'پویش افق'),
    CategoryData(id: 2, label: 'دنیای فولاد'),
    CategoryData(id: 3, label: 'ویدیوکست'),
    CategoryData(id: 4, label: 'پادکست'),
    CategoryData(id: 5, label: 'تحلیل‌های راداری'),
    CategoryData(id: 6, label: 'سها'),
  ];

  void refresh() async {
    menuItems = [
      MenuItemType(
        label: 'دنیای فولاد',
        asset: Assets.fooladWorld,
        link: Routes.news,
      ),
      MenuItemType(
        label: 'پویش افق',
        asset: Assets.ofogh,
        link: Routes.radars,
      ),
      MenuItemType(
        label: 'آمار و داده',
        asset: Assets.stats,
        link: 'tab-0',
      ),
      MenuItemType(
        label: 'سها',
        asset: Assets.saha,
        link: 'https://saha.didvan.app',
      ),
      MenuItemType(
        label: 'رادار استارت‌آپ',
        asset: Assets.startup,
        link: 'https://startup.didvan.app/',
      ),
      MenuItemType(
        label: 'رادار روند',
        asset: Assets.trend,
        link: 'https://trend.didvan.app/',
      ),
      MenuItemType(
        label: 'رادار تکنولوژی',
        asset: Assets.tech,
        link: 'https://tech.didvan.app/',
      ),
      MenuItemType(
        label: 'رادار ریسک',
        asset: Assets.risk,
        link: 'https://risk.didvan.app/',
      ),
      MenuItemType(
        label: 'ویدیوکست',
        asset: Assets.videocast,
        link: Routes.videocasts,
      ),
      MenuItemType(
        label: 'پادکست',
        asset: Assets.podcast,
        link: Routes.podcasts,
      ),
    ];

    categories = [
      CategoryData(
        id: 1,
        label: 'اقتصادی',
        asset: Assets.economicCategoryIcon,
      ),
      CategoryData(
        id: 2,
        label: 'سیاسی',
        asset: Assets.politicalCategoryIcon,
      ),
      CategoryData(
        id: 3,
        label: 'فناوری',
        asset: Assets.techCategoryIcon,
      ),
      CategoryData(
        id: 4,
        label: 'کسب و کار',
        asset: Assets.businessCategoryIcon,
      ),
      CategoryData(
        id: 5,
        label: 'زیست محیطی',
        asset: Assets.enviromentalCategoryIcon,
      ),
      CategoryData(
        id: 6,
        label: 'اجتماعی',
        asset: Assets.socialCategoryIcon,
      ),
      CategoryData(
        id: 1,
        label: 'اقتصادی',
        asset: Assets.economicCategoryIcon,
      ),
      CategoryData(
        id: 2,
        label: 'سیاسی',
        asset: Assets.politicalCategoryIcon,
      ),
      CategoryData(
        id: 3,
        label: 'فناوری',
        asset: Assets.techCategoryIcon,
      ),
      CategoryData(
        id: 4,
        label: 'کسب و کار',
        asset: Assets.businessCategoryIcon,
      ),
    ];
    Future.delayed(Duration.zero, notifyListeners);
  }
}