import 'package:shelf/shelf.dart';
import 'package:shelf_router/shelf_router.dart';
import '../database/database_provider.dart';
import 'dart:convert';

class UserRoutes {
  final DatabaseProvider database;

  UserRoutes(this.database);

  Router get routes {
    final router = Router();
    router.get('/user', _getAllUsers);
    router.post('/user', _createUser);
    router.put('/user/<id>', _updateUser);
    router.delete('/user/<id>', _deleteUser);
    return router;
  }

  Future<Response> _getAllUsers(Request request) async {
    final users = await database.getAllUsers();
    return Response(200, body: jsonEncode(users.map((u) => u.toMap()).toList()));
  }

  Future<Response> _createUser(Request request) async {
    final body = await request.readAsString();
    final data = jsonDecode(body);

    final login = data['login'];
    final password = data['password'];

    final user = await database.createUser(login, password);
    return Response(201, body: jsonEncode(user.toMap()));
  }

  Future<Response> _updateUser(Request request) async {
    final id = int.parse(request.params['id']!);

    final body = await request.readAsString();
    final data = jsonDecode(body);

    final login = data['login'];
    final password = data['password'];

    final user = await database.updateUser(id, login, password);
    return Response(200, body: jsonEncode(user.toMap()));
  }

  Future<Response> _deleteUser(Request request) async {
    final id = int.parse(request.params['id']!);
    await database.deleteUser(id);
    return Response(204);
  }
}