PMU_Kuznetsov_PIbd32/lib/presentation/home_page/home_page.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_app_2/components/extensions/context_x.dart';
import 'package:flutter_app_2/components/utils/debounce.dart';
import 'package:flutter_app_2/data/repositories/communism_repository.dart';
import 'package:flutter_app_2/data/repositories/mock_repository.dart';
import 'package:flutter_app_2/presentation/common/svg_objects.dart';
import 'package:flutter_app_2/presentation/datails_page/datails_page.dart';
import 'package:flutter_app_2/presentation/home_page/bloc/bloc.dart';
import 'package:flutter_app_2/presentation/home_page/bloc/events.dart';
import 'package:flutter_app_2/presentation/home_page/bloc/state.dart';
import 'package:flutter_app_2/presentation/like_bloc/like_bloc.dart';
import 'package:flutter_app_2/presentation/like_bloc/like_event.dart';
import 'package:flutter_app_2/presentation/like_bloc/like_state.dart';
import 'package:flutter_app_2/presentation/locale_bloc/locale_bloc.dart';
import 'package:flutter_app_2/presentation/locale_bloc/locale_events.dart';
import 'package:flutter_app_2/presentation/locale_bloc/locale_state.dart';
import 'package:flutter_bloc/flutter_bloc.dart';

import '../../domain/models/card.dart';

part 'card.dart';

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  void initState() {
    SvgObjects.init();
    WidgetsBinding.instance.addPostFrameCallback((_) {
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(
          'Здравствуй, товарищ!',
          style: Theme.of(context).textTheme.bodyLarge,
        ),
        backgroundColor: Colors.deepOrange,
        duration: const Duration(seconds: 7),
      ));
    });
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: const MyWidget(),
    );
  }
}

class MyWidget extends StatefulWidget {
  const MyWidget({super.key});

  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  final communismRepository repo = communismRepository();
  late Future<List<CardData>?> data;
  final TextEditingController searchController = TextEditingController();

  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      context.read<HomeBloc>().add(const HomeLoadDataEvent());
      context.read<LikeBloc>().add(const LoadLikesEvent());
    });
    super.initState();
    data = repo.loadData(); // Инициализация данных при загрузке
  }

  @override
  void dispose() {
    searchController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
      child: Column(
        children: [
          Row(
            children: [
              Expanded(
                flex: 4,
                child: Padding(
                  padding: const EdgeInsets.all(12),
                  child: CupertinoSearchTextField(
                    controller: searchController,
                    placeholder: context.locale.search,
                    onChanged: (search) {
                      Debounce.run(() => context
                          .read<HomeBloc>()
                          .add(HomeLoadDataEvent(search: search)));
                    },
                  ),
                ),
              ),
              GestureDetector(
                onTap: () =>
                    context.read<LocaleBloc>().add(const ChangeLocaleEvent()),
                child: SizedBox.square(
                  dimension: 50,
                  child: Padding(
                    padding: const EdgeInsets.only(right: 12),
                    child: BlocBuilder<LocaleBloc, LocaleState>(
                      builder: (context, state) {
                        return state.currentLocale.languageCode == 'ru'
                            ? const SvgRu()
                            : const SvgUk();
                      },
                    ),
                  ),
                ),
              ),
            ],
          ),
          BlocBuilder<HomeBloc, HomeState>(
            builder: (context, state) => state.isLoading
                ? const CircularProgressIndicator()
                : BlocBuilder<LikeBloc, LikeState>(
                    builder: (context, likeState) {
                      return Expanded(
                        child: RefreshIndicator(
                          onRefresh: _onRefresh,
                          child: ListView.builder(
                            padding: EdgeInsets.zero,
                            itemCount: state.data?.length ?? 0,
                            itemBuilder: (context, index) {
                              final data = state.data?[index];
                              return data != null
                                  ? _Card.fromData(
                                      data,
                                      onLike: _onLike,
                                      isLiked: likeState.likedIds
                                              ?.contains(data.id) ==
                                          true,
                                      onTap: () => _navToDatails(context, data),
                                    )
                                  : const SizedBox.shrink();
                            },
                          ),
                        ),
                      );
                    },
                  ),
          ),
        ],
      ),
    );
  }

  Future<void> _onRefresh() {
    context
        .read<HomeBloc>()
        .add(HomeLoadDataEvent(search: searchController.text));
    return Future.value(null);
  }

  void _onLike(String? id, String title, bool isLiked) {
    if (id != null) {
      context.read<LikeBloc>().add(ChangeLikeEvent(id));
      _showSnackBar(context, title, !isLiked);
    }
  }

  void _navToDatails(BuildContext context, CardData data) {
    Navigator.push(
      context,
      CupertinoPageRoute(builder: (context) => DetailsPage(data)),
    );
  }

  void _showSnackBar(BuildContext context, String title, bool isLiked) {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(
          '$title ${isLiked ? context.locale.liked : context.locale.disliked}',
          style: Theme.of(context).textTheme.bodyLarge,
        ),
        backgroundColor: Colors.deepOrange,
        duration: const Duration(seconds: 1),
      ));
    });
  }
}