package com.ydtech.security;

import com.ydtech.modules.admin.model.SysUser;
import com.ydtech.modules.admin.service.SysUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;


/**
 * 用户登录认证信息查询
 *
 * @author Louis
 * @date Jun 29, 2019
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private SysUserService userService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        SysUser user = userService.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException("该用户不存在");
        }
        // 用户权限列表，根据用户拥有的权限标识与如 @PreAuthorize("hasAuthority('sys:menu:view')") 标注的接口对比，决定是否可以调用接口
        Set<String> permissions = userService.findPermissions(user);
        List<GrantedAuthority> grantedAuthorities = permissions.stream().map(GrantedAuthorityImpl::new).collect(Collectors.toList());
        return new JwtUserDetails(user.getName(), user.getPassword(), user.getSalt(), user.getDeptId(), user.getId(), grantedAuthorities);
//        return new JwtUserDetails(user.getName(), user.getPassword(), user.getSalt(), user.getDeptId(), grantedAuthorities);
    }
}