package com.lf.server.service.sys;

import com.lf.server.entity.sys.UserEntity;
import com.lf.server.helper.Md5Helper;
import com.lf.server.helper.RsaHelper;
import com.lf.server.helper.StringHelper;
import com.lf.server.mapper.sys.UserMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * 用户表
 * @author sws
 * @date 2022-09-27
 */

@Service
public class UserService implements UserMapper {
    @Autowired
    UserMapper userMapper;

    @Override
    public Integer selectCount(String uname) {
        uname = StringHelper.getLikeStr(uname);

        return userMapper.selectCount(uname);
    }

    @Override
    public UserEntity selectUser(int id) {
        return userMapper.selectUser(id);
    }

    @Override
    public UserEntity selectByUid(String uid) {
        return userMapper.selectByUid(uid);
    }

    @Override
    public List<UserEntity> selectUserAll() {
        return userMapper.selectUserAll();
    }

    @Override
    public List<UserEntity> selectByPage(String uname, Integer limit, Integer offset) {
        uname = StringHelper.getLikeStr(uname);

        return userMapper.selectByPage(uname, limit, offset);
    }

    @Override
    public UserEntity selectByToken(String token) {
        return userMapper.selectByToken(token);
    }

    @Override
    public Integer insertUser(UserEntity userEntity) {
        return userMapper.insertUser(userEntity);
    }

    @Override
    public Integer insertUsers(List<UserEntity> userEntity) {
        return userMapper.insertUsers(userEntity);
    }

    @Override
    public Integer deleteUser(int id) {
        return userMapper.deleteUser(id);
    }

    @Override
    public Integer deleteUsers(List<Integer> ids) {
        return userMapper.deleteUsers(ids);
    }

    @Override
    public Integer updateUsers(UserEntity userEntity) {
        return userMapper.updateUsers(userEntity);
    }

    @Override
    public Integer selectCountForRole(String uname, Integer roleid, Integer depid) {
        uname = StringHelper.getLikeStr(uname);

        return userMapper.selectCountForRole(uname, roleid, depid);
    }

    @Override
    public List<UserEntity> selectByPageForRole(String uname, Integer roleid, Integer depid, Integer limit, Integer offset) {
        uname = StringHelper.getLikeStr(uname);

        return userMapper.selectByPageForRole(uname, roleid, depid, limit, offset);
    }

    /**
     * 验证新用户密码
     */
    public String ValidateNewPwd(UserEntity entity) {
        if (entity == null) {
            return "没有找到用户";
        }
        if (StringHelper.isEmpty(entity.getPwd())) {
            return "密码不能为空";
        }

        try {
            String pwd = RsaHelper.decrypt(entity.getPwd());
            if (!StringHelper.checkPwdValid(pwd)) {
                return "密码不符合要求";
            }

            String newPwd = Md5Helper.reverse(Md5Helper.generate(pwd));
            entity.setPwd(newPwd);

            return null;
        } catch (Exception ex) {
            return "密码解密失败";
        }
    }

    /**
     * 验证老用户密码
     */
    public String ValidateOldPwd(UserEntity entity) {
        if (entity == null) {
            return "没有找到用户";
        }
        if (StringHelper.isEmpty(entity.getPwd())) {
            return "用户密码不能为空";
        }

        try {
            String pwd = RsaHelper.decrypt(entity.getPwd());
            String salt = RsaHelper.decrypt(entity.getSalt());

            UserEntity ue = selectUser(entity.getId());
            if (ue == null) {
                return "没有找到用户";
            }
            if (!Md5Helper.validatePassword(pwd, ue.getPwd())) {
                return "旧密码输入错误";
            }
            if (!StringHelper.checkPwdValid(salt)) {
                return "密码不符合要求";
            }

            String newPwd = Md5Helper.reverse(Md5Helper.generate(salt));
            entity.setPwd(newPwd);
            entity.setSalt(null);

            return null;
        } catch (Exception ex) {
            return "密码解密失败";
        }
    }
}