package com.ruoyi.system.service;

import cn.dev33.satoken.stp.StpUtil;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.service.LogininforService;
import com.ruoyi.common.enums.UserStatus;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.exception.user.UserPasswordNotMatchException;
import com.ruoyi.common.utils.*;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;

/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Slf4j
@Component
public class SysLoginService
{

	@Autowired
    private ISysUserService userService;

	@Autowired
	private ISysConfigService configService;

	@Autowired
	private LogininforService asyncService;

    /**
     * 登录验证
     *
     * @param username 用户名
     * @param password 密码
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid)
    {
		HttpServletRequest request = ServletUtils.getRequest();
		boolean captchaOnOff = configService.selectCaptchaOnOff();
        // 验证码开关
        if (captchaOnOff)
        {
            validateCaptcha(username, code, uuid, request);
        }
        SysUser user = userService.selectUserByUserName(username);
        if (StringUtils.isNull(user))
        {
            log.info("登录用户：{} 不存在.", username);
            throw new ServiceException("登录用户：" + username + " 不存在");
        }
        else if (UserStatus.DELETED.getCode().equals(user.getDelFlag()))
        {
            log.info("登录用户：{} 已被删除.", username);
            throw new ServiceException("对不起，您的账号：" + username + " 已被删除");
        }
        else if (UserStatus.DISABLE.getCode().equals(user.getStatus()))
        {
            log.info("登录用户：{} 已被停用.", username);
            throw new ServiceException("对不起，您的账号：" + username + " 已停用");
        }
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        String encodePassword = passwordEncoder.encode(password);
        if (SecurityUtils.matchesPassword(user.getPassword(), encodePassword))
        {
            asyncService.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match"), request);
            throw new UserPasswordNotMatchException();
        }

		asyncService.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success"), request);
        recordLoginInfo(user);
        // 生成token
        StpUtil.login(user.getUserId(), "PC");
        return StpUtil.getTokenValue();
    }

    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid, HttpServletRequest request) {
		String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
		String captcha = RedisUtils.getCacheObject(verifyKey);
        RedisUtils.deleteObject(verifyKey);
		if (captcha == null) {
			asyncService.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire"), request);
			throw new CaptchaExpireException();
		}
		if (!code.equalsIgnoreCase(captcha)) {
			asyncService.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error"), request);
			throw new CaptchaException();
		}
    }

    /**
     * 记录登录信息
     */
    public void recordLoginInfo(SysUser user)
    {
        user.setLoginIp(ServletUtils.getClientIP());
        user.setLoginDate(DateUtils.getNowDate());
		user.setUpdateBy(user.getUserName());
        userService.updateUserProfile(user);
    }
}