package com.rzyc.service;


import com.common.utils.encryption.MD5;
import com.common.utils.jwt.JwtUtil;

import com.rzyc.advice.CustomException;
import com.rzyc.config.UserDetailsAndId;
import com.rzyc.enums.SysEnterpriseState;
import com.rzyc.mapper.ent.EntPostMapper;
import com.rzyc.mapper.ent.SysEnterpriseMapper;
import com.rzyc.model.ent.EntPost;
import com.rzyc.model.ent.EntUser;
import com.rzyc.model.ent.SysEnterprise;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.context.SecurityContextHolder;
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.Objects;

/**
 * 用户登陆 Service
 * @author Xuwanxin
 * @date 2022/9/26
 * */

@Service
public class UserLoginService {

    /**
     * spring security 登陆业务接口service
     * */
    private UserDetailsService userDetailsService;


    /**
     * spring security 内存中加密
     * */
    private PasswordEncoder passwordEncoder;

    /**
     * 企业端公司
     * */
    private SysEnterpriseMapper sysEnterpriseMapper;

    /**
     * 企业端岗位
     * */
    private EntPostMapper entPostMapper;


    @Autowired
    public void UserLoginServiceFinder(UserDetailsService userDetailsService,PasswordEncoder passwordEncoder,SysEnterpriseMapper sysEnterpriseMapper,EntPostMapper entPostMapper){
        this.userDetailsService = userDetailsService;
        this.passwordEncoder = passwordEncoder;
        this.sysEnterpriseMapper= sysEnterpriseMapper;
        this.entPostMapper = entPostMapper;
    }

    public EntUser login(String username, String password)throws Exception {
        EntUser entUser = new EntUser();
            String token = null;
            UserDetails userDetails = userDetailsService.loadUserByUsername(username);
            if (Objects.isNull(userDetails)) {
                throw new CustomException("账号不存在,请填入企业名或企业绑定的手机号");
            }
            SysEnterprise sysEnterprise = sysEnterpriseMapper.findEnterpriseByPhoneNumber(username);
            if (Objects.isNull(sysEnterprise) || sysEnterprise.getState().equals(SysEnterpriseState.DISABLE)){
                throw new CustomException("企业不存在或已经禁用");
            }
            //这里可能会不对，因为我们是MD5，这个是spring security 中的 encoder加密
            if (!passwordEncoder.matches(MD5.md5(password), userDetails.getPassword())) {
                throw new CustomException("密码不正确");
            }
            //spring security context insert
            UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
            SecurityContextHolder.getContext().setAuthentication(authentication);
            //企业用户id
            String id = ((UserDetailsAndId)SecurityContextHolder.getContext().getAuthentication().getPrincipal()).getId();
            token = JwtUtil.createToken(id);
            String postId = ((UserDetailsAndId)SecurityContextHolder.getContext().getAuthentication().getPrincipal()).getPostId();
            EntPost entPost = entPostMapper.selectById(postId);
            //封装返回数据
            entUser.setName(userDetails.getUsername());
            entUser.setEntUserId(id);
            entUser.setEnterpriseId(sysEnterprise.getSysenterpriseid());
            entUser.setUserToken(token);
            entUser.setEntPostName(entPost.getName());
            entUser.setPostId(entPost.getPostId());
            entUser.setUserTypeName("企业用户");
            entUser.setEnterpriseName(sysEnterprise.getEntname());
            return entUser;
    }
}