import "dart:convert";
import "package:http/http.dart" as http;
import "../config/api_config.dart";

class ApiClient {
  final http.Client _client;

  ApiClient({http.Client? client}) : _client = client ?? http.Client();

  Uri _uri(String path, [Map<String, dynamic>? query]) {
    return Uri.parse(ApiConfig.baseUrl).replace(
      path: path,
      queryParameters: query?.map((key, value) => MapEntry(key, "$value")),
    );
  }

  Future<List<dynamic>> getList(
    String path, {
    Map<String, dynamic>? query,
  }) async {
    final response = await _client.get(_uri(path, query));
    _ensureSuccess(response);
    return jsonDecode(response.body) as List<dynamic>;
  }

  Future<Map<String, dynamic>> getMap(
    String path, {
    Map<String, dynamic>? query,
  }) async {
    final response = await _client.get(_uri(path, query));
    _ensureSuccess(response);
    return jsonDecode(response.body) as Map<String, dynamic>;
  }

  Future<Map<String, dynamic>> post(
    String path,
    Map<String, dynamic> body,
  ) async {
    final response = await _client.post(
      _uri(path),
      headers: {"Content-Type": "application/json"},
      body: jsonEncode(body),
    );
    _ensureSuccess(response);
    return jsonDecode(response.body) as Map<String, dynamic>;
  }

  Future<Map<String, dynamic>> put(
    String path,
    Map<String, dynamic> body,
  ) async {
    final response = await _client.put(
      _uri(path),
      headers: {"Content-Type": "application/json"},
      body: jsonEncode(body),
    );
    _ensureSuccess(response);
    return jsonDecode(response.body) as Map<String, dynamic>;
  }

  Future<void> delete(String path) async {
    final response = await _client.delete(_uri(path));
    _ensureSuccess(response);
  }

  void _ensureSuccess(http.Response response) {
    if (response.statusCode < 200 || response.statusCode >= 300) {
      throw Exception("Request failed: ${response.statusCode}");
    }
  }
}