import 'package:comunic/helpers/account_credentials_helper.dart';
import 'package:comunic/helpers/api_helper.dart';
import 'package:comunic/models/api_request.dart';
import 'package:comunic/models/authentication_details.dart';
import 'package:comunic/models/login_tokens.dart';

/// Account helper
///
/// @author Pierre HUBERT

enum AuthResult {
  SUCCESS,
  TOO_MANY_ATTEMPTS,
  NETWORK_ERROR,
  INVALID_CREDENTIALS
}

class AccountHelper {
  /// Sign in user
  Future<AuthResult> signIn(AuthenticationDetails auth) async {
    final request = APIRequest(uri: "account/login");
    request.addString("userMail", auth.email);
    request.addString("userPassword", auth.password);

    final response = await APIHelper().exec(request);

    // Handle errors
    if (response.code == 401)
      return AuthResult.INVALID_CREDENTIALS;
    else if (response.code == 429)
      return AuthResult.TOO_MANY_ATTEMPTS;
    else if (response.code != 200) return AuthResult.NETWORK_ERROR;

    //Save login tokens
    final tokensObj = response.getObject()["tokens"];
    await AccountCredentialsHelper()
        .set(LoginTokens(tokensObj["token1"], tokensObj["token2"]));

    return AuthResult.SUCCESS;
  }

  /// Sign out user
  Future<void> signOut() async {
    await AccountCredentialsHelper().set(null);
  }

}