import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'bloc.dart';
import 'events.dart';
import 'state.dart';
import 'character_service.dart';
import 'character.dart';
import 'pages/character_detail_page.dart';

void main() {
  runApp(
    MultiBlocProvider(
      providers: [
        BlocProvider<HomeBloc>(
          create: (_) => HomeBloc(CharacterService()),
        ),
        BlocProvider<DebouncedSearchCubit>(
          create: (_) => DebouncedSearchCubit(),
        ),
      ],
      child: MyApp(),
    ),
  );
}


class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'My App',
      home: MyHomePage(title: 'Identity'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  final String title;

  MyHomePage({required this.title});

  @override
  Widget build(BuildContext context) {
    // Загружаем данные сразу после инициализации страницы
    context.read<HomeBloc>().add(HomeLoadDataEvent());

    return Scaffold(
      appBar: AppBar(
        title: Text(title),
        actions: [
          IconButton(
            icon: Icon(Icons.search),
            onPressed: () {
              showSearch(
                context: context,
                delegate: CharacterSearchDelegate(),
              );
            },
          ),
        ],
      ),
      body: BlocBuilder<HomeBloc, HomeState>(
        builder: (context, state) {
          if (state.status == HomeStatus.loading) {
            return Center(child: CircularProgressIndicator());
          } else if (state.status == HomeStatus.error) {
            return Center(child: Text('Ошибка: ${state.errorMessage}'));
          } else if (state.status == HomeStatus.loaded) {
            final characters = state.characters;

            return ListView.builder(
              itemCount: characters.length,
              itemBuilder: (context, index) {
                final character = characters[index];
                return ListTile(
                  leading: SizedBox(
                    width: 40,
                    child: Image.network(character.imageUrl, width: 50, height: 50),
                  ),
                  title: Text(character.name),
                  subtitle: Text(character.typeString),
                  onTap: () {
                    // Переход на страницу с деталями персонажа
                    Navigator.push(
                      context,
                      MaterialPageRoute(
                        builder: (context) => CharacterDetailPage(character: character),
                      ),
                    );
                  },
                );
              },
            );
          } else {
            return Center(child: Text('Нет данных.'));
          }
        },
      ),
    );
  }
}

class CharacterSearchDelegate extends SearchDelegate {
  @override
  Widget buildSuggestions(BuildContext context) {
    // Показываем предложения на основе текущего запроса
    return BlocProvider<HomeBloc>(
      create: (context) => HomeBloc(CharacterService()),
      child: BlocBuilder<HomeBloc, HomeState>(
        builder: (context, state) {
          final suggestions = state.characters
              .where((character) => character.name.toLowerCase().contains(query.toLowerCase()))
              .toList();

          return ListView.builder(
            itemCount: suggestions.length,
            itemBuilder: (context, index) {
              final character = suggestions[index];
              return ListTile(
                title: Text(character.name),
                subtitle: Text(character.typeString),
                onTap: () {
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => CharacterDetailPage(character: character),
                    ),
                  );
                },
              );
            },
          );
        },
      ),
    );
  }

  @override
  Widget buildResults(BuildContext context) {
    // Отправляем запрос с задержкой
    final debouncedSearchCubit = context.read<DebouncedSearchCubit>();
    debouncedSearchCubit.search(query);

    return BlocBuilder<DebouncedSearchCubit, String>(
      builder: (context, searchQuery) {
        // Отправляем запрос на сервер через HomeBloc
        if (searchQuery.isNotEmpty) {
          context.read<HomeBloc>().add(HomeLoadDataEvent(searchQuery: searchQuery));
        }

        return BlocBuilder<HomeBloc, HomeState>(
          builder: (context, state) {
            if (state.status == HomeStatus.loading) {
              return Center(child: CircularProgressIndicator());
            } else if (state.status == HomeStatus.error) {
              return Center(child: Text('Ошибка: ${state.errorMessage}'));
            } else if (state.status == HomeStatus.loaded) {
              final characters = state.characters
                  .where((character) => character.name.toLowerCase().contains(searchQuery.toLowerCase()))
                  .toList();

              return ListView.builder(
                itemCount: characters.length,
                itemBuilder: (context, index) {
                  final character = characters[index];
                  return ListTile(
                    title: Text(character.name),
                    subtitle: Text(character.typeString),
                    onTap: () {
                      Navigator.push(
                        context,
                        MaterialPageRoute(
                          builder: (context) => CharacterDetailPage(character: character),
                        ),
                      );
                    },
                  );
                },
              );
            } else {
              return Center(child: Text('Нет результатов'));
            }
          },
        );
      },
    );
  }

  @override
  List<Widget> buildActions(BuildContext context) {
    return [
      IconButton(
        icon: Icon(Icons.clear),
        onPressed: () {
          query = '';  // Очистить запрос
          showSuggestions(context);  // Показать предложения
        },
      ),
    ];
  }

  @override
  Widget buildLeading(BuildContext context) {
    return IconButton(
      icon: Icon(Icons.arrow_back),
      onPressed: () {
        close(context, null); // Закрыть поиск
      },
    );
  }
}