/**
 * Copyright (c) 2018 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package com.epmet.service.impl;

import com.epmet.commons.tools.exception.ErrorCode;
import com.epmet.commons.tools.exception.RenException;
import com.epmet.commons.tools.log.SysLogLogin;
import com.epmet.commons.tools.log.enums.LogTypeEnum;
import com.epmet.commons.tools.log.enums.LoginOperationEnum;
import com.epmet.commons.tools.log.enums.LoginStatusEnum;
import com.epmet.commons.tools.log.producer.LogProducer;
import com.epmet.commons.tools.redis.UserDetailRedis;
import com.epmet.commons.tools.security.password.PasswordUtils;
import com.epmet.commons.tools.security.user.SecurityUser;
import com.epmet.commons.tools.security.user.UserDetail;
import com.epmet.commons.tools.utils.HttpContextUtils;
import com.epmet.commons.tools.utils.IpUtils;
import com.epmet.commons.tools.utils.Result;
import com.epmet.dto.AuthorizationDTO;
import com.epmet.dto.LoginDTO;
import com.epmet.enums.UserStatusEnum;
import com.epmet.feign.UserFeignClient;
import com.epmet.jwt.JwtProperties;
import com.epmet.jwt.JwtUtils;
import com.epmet.service.AuthService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;
import java.util.Date;

/**
 * 认证服务
 *
 * @author Mark sunlightcs@gmail.com
 * @since 1.0.0
 */
@Service
public class AuthServiceImpl implements AuthService {
    @Autowired
    private UserFeignClient userFeignClient;
    @Autowired
    private UserDetailRedis userDetailRedis;
    @Autowired
    private LogProducer logProducer;
    @Autowired
    private JwtUtils jwtUtils;
    @Autowired
    private JwtProperties jwtProperties;

    @Override
    public AuthorizationDTO login(LoginDTO login) {
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();

        //获取用户信息
        Result<UserDetail> result = userFeignClient.getByUsername(login.getUsername());
        UserDetail user = result.getData();

        //登录日志
        SysLogLogin log = new SysLogLogin();
        log.setType(LogTypeEnum.LOGIN.value());
        log.setOperation(LoginOperationEnum.LOGIN.value());
        log.setCreateDate(new Date());
        log.setIp(IpUtils.getIpAddr(request));
        log.setUserAgent(request.getHeader(HttpHeaders.USER_AGENT));
        log.setIp(IpUtils.getIpAddr(request));

        //账号不存在
        if(user == null){
            log.setStatus(LoginStatusEnum.FAIL.value());
            log.setCreatorName(login.getUsername());
            logProducer.saveLog(log);

            throw new RenException(ErrorCode.ACCOUNT_PASSWORD_ERROR);
        }

        //密码错误
        if(!PasswordUtils.matches(login.getPassword(), user.getPassword())){
            log.setStatus(LoginStatusEnum.FAIL.value());
            log.setCreator(user.getId());
            log.setCreatorName(user.getUsername());
            logProducer.saveLog(log);

            throw new RenException(ErrorCode.ACCOUNT_PASSWORD_ERROR);
        }

        //账号停用
        if(user.getStatus() == UserStatusEnum.DISABLE.value()){
            log.setStatus(LoginStatusEnum.LOCK.value());
            log.setCreator(user.getId());
            log.setCreatorName(user.getUsername());
            logProducer.saveLog(log);

            throw new RenException(ErrorCode.ACCOUNT_DISABLE);
        }

        //保存到Redis
        userDetailRedis.set(user, jwtProperties.getExpire());

        //登录成功，生成token
        String token = jwtUtils.generateToken(user.getId());

        //授权信息
        AuthorizationDTO authorization = new AuthorizationDTO();
        authorization.setToken(token);
        authorization.setExpire(jwtProperties.getExpire());

        //登录用户信息
        log.setCreator(user.getId());
        log.setCreatorName(user.getUsername());
        log.setStatus(LoginStatusEnum.SUCCESS.value());
        logProducer.saveLog(log);

        return authorization;
    }

    @Override
    public void logout(Long userId) {
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();

        UserDetail user = SecurityUser.getUser();

        //退出日志
        SysLogLogin log = new SysLogLogin();
        log.setType(LogTypeEnum.LOGIN.value());
        log.setOperation(LoginOperationEnum.LOGOUT.value());
        log.setIp(IpUtils.getIpAddr(request));
        log.setUserAgent(request.getHeader(HttpHeaders.USER_AGENT));
        log.setIp(IpUtils.getIpAddr(request));
        log.setStatus(LoginStatusEnum.SUCCESS.value());
        log.setCreator(user.getId());
        log.setCreatorName(user.getUsername());
        log.setCreateDate(new Date());
        logProducer.saveLog(log);

        userDetailRedis.logout(userId);
    }

}