import 'dart:convert';
import 'dart:async';
import 'package:http/http.dart' as http;
import 'package:shared_preferences/shared_preferences.dart';
import '../connection/connection.dart';
import '../models/user_model.dart';

class AuthService {
  Future<UserModel?> getUserInfoFromServer(String token) async {
    var url = Uri.parse(await getBaseUrl() + '/user');
    var headers = {
      'Content-Type': 'application/json',
      'Authorization': token,
    };

    var response = await http.get(url, headers: headers);

    if (response.statusCode == 200) {
      var data = json.decode(response.body);
      UserModel user = UserModel.fromJson(data);
      return user;
    } else {
      return null;
    }
  }

  FutureOr<UserModel> register({
    String? name,
    String? email,
    String? password,
  }) async {
    var url = Uri.parse(await getBaseUrl() + '/register');
    var headers = {'Content-Type': 'application/json'};
    var body = jsonEncode({
      'name': name,
      'email': email,
      'password': password,
    });

    var response = await http.post(
      url,
      headers: headers,
      body: body,
    );

    if (response.statusCode == 200) {
      var data = jsonDecode(response.body)['data'];
      UserModel user = UserModel.fromJson(data['user']);
      user.token = 'Bearer ' + data['token'];

      return user;
    } else {
      throw Exception('Failed to register');
    }
  }

  Future<UserModel> login({
    String? email,
    String? password,
  }) async {
    var url = Uri.parse(await getBaseUrl() + '/login');
    var headers = {'Content-Type': 'application/json'};
    var body = jsonEncode({
      'email': email,
      'password': password,
    });

    var response = await http.post(
      url,
      headers: headers,
      body: body,
    );

    print(response.body);
    var dataUser = print(response.body);

    if (response.statusCode == 200) {
      var data = json.decode(response.body)['data'];
      UserModel user = UserModel.fromJson(data['user']);
      user.token = 'Bearer ' + data['token'];

      SharedPreferences prefs = await SharedPreferences.getInstance();
      prefs.setString('token', user.token!);

      return user;
    } else {
      throw Exception('Failed to login');
    }
  }

  Future<void> clearToken() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.remove('token');
  }

  FutureOr<bool> logout(String token) async {
    try {
      var url = Uri.parse(await getBaseUrl() + '/logout');
      var headers = {
        'Content-Type': 'application/json',
        'Authorization': token,
      };

      var response = await http.post(
        url,
        headers: headers,
      );

      if (response.statusCode == 200) {
        SharedPreferences prefs = await SharedPreferences.getInstance();
        await prefs.remove('token');
        await prefs.remove('email');
        await prefs.remove('password');
        await prefs.clear();

        return true;
      } else {
        return false;
      }
    } catch (e) {
      print(e);
      return false;
    }
  }

  FutureOr<UserModel> updateProfile({
    String? name,
    String? username,
    String? token,
  }) async {
    try {
      var url = Uri.parse(await getBaseUrl() + '/user');
      var headers = {
        'Content-Type': 'application/json',
        'Authorization': token!,
      };
      var body = jsonEncode({
        'name': name,
        'username': username,
      });

      var response = await http.post(
        url,
        headers: headers,
        body: body,
      );

      if (response.statusCode == 200) {
        var data = jsonDecode(response.body)['data'];
        UserModel user = UserModel.fromJson(data);
        return user;
      } else {
        throw Exception('Failed to update profile');
      }
    } catch (e) {
      print(e);
      throw Exception('Failed to update profile');
    }
  }
}