package com.rzyc.service;


import com.rzyc.config.UserDetailsAndId;
import com.rzyc.mapper.AuthorityKeyMapper;
import com.rzyc.mapper.ent.EntUserMapper;
import com.rzyc.model.AuthorityKey;
import com.rzyc.model.ent.EntUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Objects;

/**
 * spring security 用户认证过程
 * @author Xuwanxin
 * @author 2022/09/27
 * */

@Service("userService")
public class UserDetailsServiceImpl implements UserDetailsService {



    /**
     * 内存过程密码加密
     * */
    private PasswordEncoder passwordEncoder;

    /**
     * 企业端用户
     * */
    private EntUserMapper entUserMapper;

    private AuthorityKeyMapper authorityKeyMapper;

    @Autowired
    public void UserDetailsServiceImplFinder(PasswordEncoder passwordEncoder,EntUserMapper entUserMapper,AuthorityKeyMapper authorityKeyMapper) {
        this.passwordEncoder = passwordEncoder;
        this.entUserMapper = entUserMapper;
        this.authorityKeyMapper = authorityKeyMapper;
    }




    @Override
    public UserDetails loadUserByUsername(String name) throws UsernameNotFoundException {
        //判断数据库用户
        EntUser entUser = entUserMapper.selectByName(name);
        if (Objects.isNull(entUser)){
            throw new UsernameNotFoundException("用户名或密码错误");
        }
            List<GrantedAuthority> authority= new ArrayList<GrantedAuthority>();
            List<AuthorityKey>authorizations = authorityKeyMapper.allAuthorizations();
            StringBuilder stringBuilder = new StringBuilder();
            for (AuthorityKey s:authorizations) {
                stringBuilder.append(s.getCategory() +":"+s.getAuthKey());
                authority.add(new SimpleGrantedAuthority(stringBuilder.toString()));
            }
        return new UserDetailsAndId(entUser.getName(), passwordEncoder.encode(entUser.getPasswd()), authority,entUser.getEntUserId());

    }
}