import 'dart:async';
import 'dart:io';

import 'package:dio/dio.dart';
import 'package:eatvio_app/features/chat/models/chat_message_model.dart';
import 'package:eatvio_app/features/chat/models/chat_messages_model.dart';
import 'package:eatvio_app/features/chat/models/chat_room_model.dart';
import 'package:eatvio_app/features/chat/models/chat_room_preview_model.dart';
import 'package:eatvio_app/features/chat/services/chat_service.dart';
import 'package:http_parser/http_parser.dart';

class ChatRepository {
  final ChatService chatService;

  final _newUserMessagesController = StreamController<ChatMessageModel>();

  Stream<ChatMessageModel> get newUserMessagesStream => _newUserMessagesController.stream;

  ChatRepository({
    required this.chatService,
  });

  void emitNewMessageToChats(ChatMessageModel message) {
    _newUserMessagesController.add(message);
  }

  Future<void> sendMessage({
    required String chatId,
    String? data,
    List<File>? files,
  }) async {
    try {
      final multipartFiles = <MultipartFile>[];

      if (files != null) {
        for (final file in files) {
          final fileBytes = await file.readAsBytes();
          final multipartFile = MultipartFile.fromBytes(
            fileBytes,
            filename: file.path.split('/').last,
            contentType: MediaType('application', 'octet-stream'),
          );
          multipartFiles.add(multipartFile);
        }
      }

      await chatService.sendMessage(
        id: chatId,
        data: data,
        media_data: multipartFiles.isEmpty ? null : multipartFiles,
      );
    } catch (e) {
      rethrow;
    }
  }

  Future<ChatRoomModel> getChatRoom(String chatId) async {
    try {
      return (await chatService.getChatRoom(id: chatId))['chatRoom']!;
    } catch (e) {
      rethrow;
    }
  }

  Future<List<ChatRoom>> getChatRoomPreviews({String? query}) async {
    try {
      return (await chatService.getChatRoomPreviews(query: query)).chatRooms;
    } catch (e) {
      rethrow;
    }
  }

  Future<ChatMessagesModel> getChatMessages(String chatId, int page) async {
    try {
      return (await chatService.getChatMessages(id: chatId, page: page));
    } catch (e) {
      rethrow;
    }
  }

  Future<ChatRoomModel> getChatRoomIdByUserSlug({required String slug}) async {
    try {
      return (await chatService.getChatRoomIdByUserSlug(user: slug));
    } catch (e) {
      rethrow;
    }
  }

  Future<void> markMessagesAsRead(String chatId, List<int> messageIds) async {
    try {
      await chatService.markMessagesAsRead(id: chatId, body: {'messages_ids': messageIds});
    } catch (e) {
      rethrow;
    }
  }
}