import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'bloc/bloc.dart';
import 'bloc/events.dart';
import 'bloc/state.dart';
import 'utils/character_service.dart';
import 'models/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) {
    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 characterDTO = characters[index];  // Убедитесь, что это CharacterDTO
                return ListTile(
                  leading: SizedBox(
                    width: 40,
                    child: Image.network(characterDTO.imageUrl, width: 50, height: 50),
                  ),
                  title: Text(characterDTO.name),
                  subtitle: Text(characterDTO.typeString), // Используем typeString из CharacterDTO
                  onTap: () {
                    // Переход на страницу с деталями персонажа, передаем CharacterDTO
                    Navigator.push(
                      context,
                      MaterialPageRoute(
                        builder: (context) => CharacterDetailPage(characterDTO: characterDTO), // Передаем CharacterDTO
                      ),
                    );
                  },
                );
              },
            );
          } else {
            return Center(child: Text('Нет данных.'));
          }
        },
      ),
    );
  }
}

class CharacterSearchDelegate extends SearchDelegate {
  @override
  Widget buildSuggestions(BuildContext context) {
    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];  // Используем правильный тип
              return ListTile(
                title: Text(character.name),
                subtitle: Text(character.typeString),
                onTap: () {
                  // Переход на страницу с деталями персонажа
                  Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => CharacterDetailPage(characterDTO: character), // Передаем правильный параметр
                    ),
                  );
                },
              );
            },
          );
        },
      ),
    );
  }

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

    return BlocBuilder<DebouncedSearchCubit, String>(
      builder: (context, searchQuery) {
        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 characterDTO = characters[index]; // Здесь определяем characterDTO
                    return ListTile(
                      leading: SizedBox(
                        width: 40,
                        child: Image.network(characterDTO.imageUrl, width: 50, height: 50),
                      ),
                      title: Text(characterDTO.name),
                      subtitle: Text(characterDTO.typeString), // Используем typeString
                      onTap: () {
                        // Переход на страницу с деталями персонажа
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                            builder: (context) => CharacterDetailPage(characterDTO: characterDTO), // Передаем characterDTO
                          ),
                        );
                      },
                    );
                  }
              );
            } else {
              return Center(child: Text('Нет результатов'));
            }
          },
        );
      },
    );
  }

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

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