package com.zjsgfa.framework.web.service;

import com.zjsgfa.common.enums.UserStatus;
import com.zjsgfa.common.exception.ServiceException;
import com.zjsgfa.common.utils.StringUtils;
import com.zjsgfa.framework.security.LoginUser;
import com.zjsgfa.framework.security.service.SysPermissionService;
import com.zjsgfa.framework.security.service.UserDetailsServiceImpl;
import com.zjsgfa.project.system.domain.SysUser;
import com.zjsgfa.project.system.service.ISysUserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.cas.authentication.CasAssertionAuthenticationToken;
import org.springframework.security.core.userdetails.AuthenticationUserDetailsService;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

/**
 * 用于加载用户信息 实现UserDetailsService接口，或者实现AuthenticationUserDetailsService接口
 */

@Service
public class CasUserDetailsService implements AuthenticationUserDetailsService<CasAssertionAuthenticationToken> {

    private static final Logger log = LoggerFactory.getLogger(UserDetailsServiceImpl.class);

    @Autowired
    private ISysUserService userService;

    @Autowired
    private SysPermissionService permissionService;

    @Override
    public UserDetails loadUserDetails(CasAssertionAuthenticationToken token) throws UsernameNotFoundException {
        String username = token.getName();
        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");
        }

        return createLoginUser(user);
    }

    public UserDetails createLoginUser(SysUser user) {
        return new LoginUser(user.getUserId(), user.getDeptId(), user, permissionService.getMenuPermission(user));
    }
}