/*
 * eGov suite of products aim to improve the internal efficiency,transparency,
 *    accountability and the service delivery of the government  organizations.
 *
 *     Copyright (C) <2015>  eGovernments Foundation
 *
 *     The updated version of eGov suite of products as by eGovernments Foundation
 *     is available at http://www.egovernments.org
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program. If not, see http://www.gnu.org/licenses/ or
 *     http://www.gnu.org/licenses/gpl.html .
 *
 *     In addition to the terms of the GPL license to be adhered to in using this
 *     program, the following additional terms are to be complied with:
 *
 *         1) All versions of this program, verbatim or modified must carry this
 *            Legal Notice.
 *
 *         2) Any misrepresentation of the origin of the material is prohibited. It
 *            is required that all modified versions of this material be marked in
 *            reasonable ways as different from the original version.
 *
 *         3) This license does not grant any rights to any user of the program
 *            with regards to rights under trademark law for use of the trade names
 *            or trademarks of eGovernments Foundation.
 *
 *   In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org.
 */

package org.egov.infra.security.audit.service;

import org.egov.infra.admin.master.entity.User;
import org.egov.infra.admin.master.service.UserService;
import org.egov.infra.security.audit.entity.LoginAttempt;
import org.egov.infra.security.audit.repository.LoginAttemptRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.Optional;

import static org.egov.infra.security.utils.SecurityConstants.MAX_LOGIN_ATTEMPT_ALLOWED;

@Transactional
@Service
public class LoginAttemptService {

    private final LoginAttemptRepository loginAttemptRepository;

    @Autowired
    private UserService userService;

    @Autowired
    public LoginAttemptService(LoginAttemptRepository loginAttemptRepository) {
        this.loginAttemptRepository = loginAttemptRepository;
    }

    public Optional<LoginAttempt> updateFailedAttempt(String username) {
        User user = userService.getUserByUsername(username);
        if (user != null) {
            LoginAttempt loginAttempt = getLoginAttempt(username);
            if (loginAttempt == null) {
                loginAttempt = new LoginAttempt();
                loginAttempt.setUsername(username);
                loginAttempt.setFailedAttempts(1);
            } else {
                loginAttempt.setFailedAttempts(loginAttempt.getFailedAttempts() + 1);
            }
            loginAttempt.setLastModifiedOn(new Date());
            if (loginAttempt.getFailedAttempts() >= MAX_LOGIN_ATTEMPT_ALLOWED) {
                user.setAccountLocked(true);
                userService.updateUser(user);
            }
            return Optional.of(loginAttemptRepository.save(loginAttempt));
        }
        return Optional.empty();
    }

    public void resetFailedAttempt(String username) {
        LoginAttempt loginAttempt = getLoginAttempt(username);
        if (loginAttempt != null) {
            loginAttempt.setFailedAttempts(0);
            loginAttempt.setLastModifiedOn(new Date());
            loginAttemptRepository.save(loginAttempt);
            User user = userService.getUserByUsername(username);
            user.setAccountLocked(false);
            userService.updateUser(user);
        }
    }

    @Transactional(readOnly = true)
    public LoginAttempt getLoginAttempt(String username) {
        return loginAttemptRepository.findByUsername(username);
    }

}