/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package com.peanut.modules.sys.oauth2;

import com.peanut.modules.book.entity.MyUserEntity;
import com.peanut.modules.sys.entity.SysUserEntity;
import com.peanut.modules.sys.entity.SysUserTokenEntity;
import com.peanut.modules.sys.service.ShiroService;
import com.peanut.modules.sys.service.SysUserTokenService;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;

import java.util.Date;
import java.util.Set;

/**
 * 认证
 *
 * @author Mark sunlightcs@gmail.com
 */
@Component
public class OAuth2Realm extends AuthorizingRealm {
    @Autowired
    private ShiroService shiroService;
    @Autowired
    private SysUserTokenService sysUserTokenService;
    @Autowired
    private Environment environment;

    @Override
    public boolean supports(AuthenticationToken token) {
        return token instanceof OAuth2Token;
    }

    /**
     * 授权(验证权限时调用)
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        long userId = 0;
        System.out.println("aaaaa"+principals.getPrimaryPrincipal());
        if (principals.toString().contains("MyUserEntity")){
            MyUserEntity user = (MyUserEntity) principals.getPrimaryPrincipal();
            userId = Long.valueOf(user.getId());
        }else {
            SysUserEntity user = (SysUserEntity)principals.getPrimaryPrincipal();
            userId = user.getUserId();
        }
        //用户权限列表
        Set<String> permsSet = shiroService.getUserPermissions(userId);

        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.setStringPermissions(permsSet);
        return info;
    }

    /**
     * 认证(登录时调用)
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String accessToken = (String) token.getPrincipal();
        SimpleAuthenticationInfo info = new SimpleAuthenticationInfo();
        //根据accessToken，查询用户信息
        SysUserTokenEntity tokenEntity = shiroService.queryByToken(accessToken);
        //token失效
        if(tokenEntity == null || tokenEntity.getExpireTime().getTime() < System.currentTimeMillis()){
            throw new IncorrectCredentialsException("token失效，请重新登录");
        }
        Long userId = tokenEntity.getUserId();

        Long timeout = (tokenEntity.getExpireTime().getTime() - System.currentTimeMillis())/(1000 * 60 * 60);

        if (timeout <= 24*10){
            // token 续期
            //当前时间
            Date now = new Date();
            //过期时间
            Date expireTime = new Date(now.getTime() + (3600 *24 * 10 * 1000) );

            tokenEntity.setExpireTime(expireTime);

            sysUserTokenService.updateById(tokenEntity);
        }


        //判断前后台用户
        if (userId >= 10000) {
            MyUserEntity myUserEntity = shiroService.queryAppUser(userId);
            info = new SimpleAuthenticationInfo(myUserEntity, accessToken, getName());
        }else {
            //查询用户信息
            SysUserEntity user = shiroService.queryUser(tokenEntity.getUserId());
            //账号锁定
            if(user.getStatus() == 0){
                throw new LockedAccountException("账号已被锁定,请联系管理员");
            }
            info = new SimpleAuthenticationInfo(user, accessToken, getName());
        }

        return info;
    }
}