part of '../database.dart';

extension UserCrud on AppDatabase {
  String hashPassword(String password) {
    final passwordBytes = utf8.encode(password);
    final hashedPassword = sha512224.convert(passwordBytes);
    return hashedPassword.toString();
  }

  Future<UserData?> addUser({
    required String login,
    required String password,
  }) async {
    return await managers.user.createReturningOrNull((c) => c(
          login: login,
          password: hashPassword(password),
        ));
  }

  Future<List<UserData>> getUsers() async {
    return await managers.user.get();
  }

  Future<bool> anyUserExists() async {
    return await managers.user.exists();
  }

  Future<UserData?> findUser({
    required String login,
    required String password,
  }) async {
    return await managers.user
        .filter((f) => f.login(login))
        .filter((f) => f.password(hashPassword(password)))
        .getSingleOrNull();
  }

  Future<UserData> getUser(UserData user) async {
    return await managers.user.filter((f) => f.id(user.id)).getSingle();
  }

  Future<bool> updateUser(
    UserData currentUser,
    UserData updatedUser, {
    String? login,
    String? password,
  }) async {
    if (currentUser.id == updatedUser.id) {
      return false;
    }

    await managers.user.filter((f) => f.id(updatedUser.id)).update((u) => u(
          login: Value.absentIfNull(login),
          password: Value.absentIfNull(
              password != null ? hashPassword(password) : null),
        ));

    return true;
  }

  Future<bool> updateUserPassword(
    UserData user, {
    required String password,
  }) async {
    await managers.user.filter((f) => f.id(user.id)).update((u) => u(
          password: Value(hashPassword(password)),
        ));

    return true;
  }

  Future<bool> deleteUser(UserData user) async {
    final usersCount = await managers.user.count();
    if (usersCount == 0) {
      return false;
    }
    final deletedCount = await managers.user
        .filter(
          (f) => f.id(user.id),
        )
        .delete();
    return deletedCount != 0;
  }
}