import 'dart:io';
import 'package:dio/dio.dart';
import 'package:social_app/data/network/i_api_client.dart';
import '../models/user_profile.dart';
import 'friends_api.dart';

export 'friends_api.dart' show UserBasicInfo;

class UsersApi {
  final IApiClient _client;
  static const _prefix = '/api/v1/users';

  UsersApi(this._client);

  Future<UserBasicInfo> getById(String userId) async {
    final response = await _client.get('$_prefix/$userId');
    return UserBasicInfo.fromJson(response.data);
  }

  Future<UserProfile> getMe() async {
    final response = await _client.get('$_prefix/me');
    return UserProfile.fromJson(response.data);
  }

  Future<UserProfile> updateMe(UserUpdateRequest request) async {
    final response = await _client.patch('$_prefix/me', data: request.toJson());
    return UserProfile.fromJson(response.data);
  }

  Future<String> uploadAvatar(File file) async {
    final formData = FormData.fromMap({
      'file': await MultipartFile.fromFile(
        file.path,
        filename: file.path.split('/').last,
      ),
    });
    final response = await _client.post<Map<String, dynamic>>(
      '$_prefix/me/avatar',
      data: formData,
    );
    final payload = response.data;
    if (payload is! Map<String, dynamic>) {
      throw StateError('Invalid /users/me/avatar response');
    }
    final url = payload['url'];
    if (url is! String) {
      throw StateError('Missing url in /users/me/avatar response');
    }
    return url;
  }

  Future<List<UserProfile>> searchUsers(String query) async {
    final response = await _client.post(
      '$_prefix/search',
      data: {'query': query},
    );
    final List<dynamic> data = response.data;
    return data.map((json) => UserProfile.fromJson(json)).toList();
  }
}