package com.dreamworks.boditech.service;
import com.dreamworks.boditech.entity.ParamUserLogin;
import com.dreamworks.boditech.entity.User;
import com.dreamworks.boditech.mapper.UserMapper;
import jakarta.annotation.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;
@Service
public class UserService {
    private static final Logger LOG = LoggerFactory.getLogger(UserService.class);
    @Resource
    private UserMapper userMapper;
    @Resource
    private ActionLogService actionLog;
    // current user
    private User curUser = null;

    // login
    public User login(ParamUserLogin param) {
        User user = userMapper.findByAccount(param.account);
        String hashPin = DigestUtils.md5DigestAsHex(param.pin.getBytes());
        if ( null == user || !user.pin.equals(hashPin) ) {
            throw new RuntimeException("USER_LOGIN_INVALID_ACCOUNT_OR_PIN_CODE");
        }

        this.curUser = user;
        this.curUser.pin = "****";
        this.actionLog.setUserId(user.id);
        this.actionLog.log("user.login", param.account);
        return user;
    }

    // logout
    public void logout() {
        this.actionLog.log("user.logout");
        this.actionLog.setUserId(0);
        this.curUser = null;
    }

    // create
    public User create(String account, String pin) {
        if ( null == this.curUser || 0 == this.curUser.isAdmin) {
            throw new RuntimeException("无权限创建用户");
        }

        User user = userMapper.findByAccount(account);
        if ( null != user ) {
            throw new RuntimeException("用户名已存在");
        }

        user = new User();
        user.account = account;
        user.pin = pin;
        user.isAdmin = 0;
        user.createdAt = System.currentTimeMillis();
        user.createdBy = this.curUser.id;
        userMapper.insert(user);

        user = this.userMapper.findByAccount(account);
        LOG.info("user create success, user id : {}", user.id);
        return user;
    }

    // pin-update
    public void pinUpdate(String pin) {
        if ( null == this.curUser ) {
            throw new RuntimeException("请先登录");
        }

        this.curUser.pin = pin;
        int changeCount = userMapper.update(this.curUser);
        if ( 1 != changeCount ) {
            throw new RuntimeException("数据更新异常");
        }
    }

    // delete
    public void delete(int id) {
        if ( null == this.curUser || 0 == this.curUser.isAdmin) {
            throw new RuntimeException("无权限删除用户");
        }

        User user = this.userMapper.findById(id);
        if ( null == user ) {
            throw new RuntimeException("无效的用户id : " + id);
        }

        int deleteCount = this.userMapper.delete(user);
        if ( 1 != deleteCount ) {
            throw new RuntimeException("数据删除异常");
        }
    }
}