Files

106 lines
2.8 KiB
Dart

import 'dart:convert';
import 'package:stream_chatter/data/stream_api_repository.dart';
import 'package:stream_chatter/domain/models/chat_user.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'package:http/http.dart' as http;
class StreamApiImpl extends StreamApiRepository {
StreamApiImpl(this._client);
final StreamChatClient _client;
@override
Future<ChatUser> connectUser(ChatUser user, String token) async {
Map<String, dynamic> extraData = {};
if (user.image != null) {
extraData['image'] = user.image;
}
if (user.name != null) {
extraData['name'] = user.name;
}
await _client.disconnectUser();
await _client.connectUser(
User(id: user.id!, extraData: extraData as Map<String, Object>),
token,
);
return user;
}
@override
Future<List<ChatUser>> getChatUsers() async {
final result = await _client.queryUsers();
final chatUsers = result.users
.where((element) => element.id != _client.state.currentUser!.id)
.map(
(e) => ChatUser(
id: e.id,
name: e.name,
image: e.extraData['image'] as String?,
),
)
.toList();
return chatUsers;
}
@override
Future<String> getToken(String userId) async {
//TODO: use your own implementation in Production
final response = await http.post(
Uri.parse('your_backend_url'),
body: jsonEncode(<String, String>{'id': userId}),
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
);
final token = jsonDecode(response.body)['token'];
//In Development mode you can just use :
// _client.devToken(userId);
return token;
}
@override
Future<Channel> createGroupChat(
String id, String? name, List<String?>? members,
{String? image}) async {
final channel = _client.channel('messaging', id: id, extraData: {
'name': name!,
'image': image!,
'members': [_client.state.currentUser!.id, ...members!],
});
await channel.watch();
return channel;
}
@override
Future<Channel> createSimpleChat(String? friendId) async {
final channel = _client.channel('messaging',
id: '${_client.state.currentUser!.id.hashCode}${friendId.hashCode}',
extraData: {
'members': [
friendId,
_client.state.currentUser!.id,
],
});
await channel.watch();
return channel;
}
@override
Future<void> logout() async {
return _client.disconnectUser();
}
@override
Future<bool> connectIfExist(String userId) async {
final token = await getToken(userId);
await _client.connectUser(
User(id: userId),
token,
);
return _client.state.currentUser!.name != userId;
}
}