package com.mes.userinfo.entity;

import com.alibaba.fastjson.annotation.JSONField;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

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

/**
 * @Author : zhoush
 * @Date: 2024/4/11 15:46
 * @Description:
 */
public class LoginUser implements UserDetails {


    private SysUser user;

    /**
     * 存储权限信息
     */
    @JSONField(serialize = false)
    private List<String> permissions;

    /**
     * 存储SpringSecurity调用getAuthorities()方法获取的权限信息的集合
     */
    @JSONField(serialize = false)
    private List<GrantedAuthority> authorities;


    public LoginUser() {
    }

    public LoginUser(SysUser user, List<String> permissions) {
        this.user = user;
        this.permissions = permissions;
    }

    public SysUser getUser() {
        return user;
    }

    public void setUser(SysUser user) {
        this.user = user;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {

        // 优化为只需要第一次获取的时候进行遍历，后面再用就会从authorities这个成员变量中获取了，不会再进行Stream循环遍历了
        if (authorities != null) {
            return authorities;
        }
        //把permissions中字符串类型的权限信息转换成GrantedAuthority对象存入authorities中
        authorities = permissions.stream().
                map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;
    }

    @Override
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    public String getUsername() {
        return user.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}