import 'dart:developer';

import 'package:http/http.dart' as http;

import '../../apiError.dart';
import '../../apiParams.dart';
import '../../apiRequest.dart';
import '../../apiResponse.dart';
import '../nextcloud_ocs.dart';

enum TalkApiMethod {
  get,
  post,
  put,
  delete,
}

abstract class TalkApi<T extends ApiResponse?> extends ApiRequest {
  String path;
  ApiParams? body;
  Map<String, String>? headers;
  Map<String, dynamic>? getParameters;

  http.Response? response;

  TalkApi(this.path, this.body, {this.headers, this.getParameters});

  Future<http.Response>? request(Uri uri, ApiParams? body, Map<String, String>? headers);
  T assemble(String raw);

  Future<T> run() async {
    final endpoint = NextcloudOcs.uri('apps/spreed/api/$path', queryParameters: getParameters);
    final mergedHeaders = {...NextcloudOcs.headers(), ...?headers};

    http.Response? data;
    try {
      data = await request(endpoint, body, mergedHeaders);
      if (data == null) throw Exception('No response Data');
      if (data.statusCode >= 400 || data.statusCode < 200) {
        throw Exception("Response status code '${data.statusCode}' might indicate an error");
      }
    } catch (e) {
      log(e.toString());
      throw ApiError('Request $endpoint could not be dispatched: ${e.toString()}');
    }

    try {
      final assembled = assemble(data.body);
      assembled?.headers = data.headers;
      return assembled;
    } catch (e) {
      final message = 'Error assembling Talk API ${T.toString()} message: ${e.toString()}'
          ' response with request body: $body and request headers: $mergedHeaders';
      log(message);
      throw Exception(message);
    }
  }
}