package com.terra.system.service.sys;

import com.terra.system.entity.sys.RoleEntity;
import com.terra.system.entity.sys.UserEntity;
import com.terra.system.helper.Md5Helper;
import com.terra.system.helper.RsaHelper;
import com.terra.system.helper.StringHelper;
import com.terra.system.mapper.sys.UserMapper;
import com.terra.system.service.all.RedisService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;

import java.util.List;

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

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

    @Resource
    TokenService tokenService;

    private final static Log log = LogFactory.getLog(UserService.class);

    @Override
    public Integer selectCount(String uname, String depcode) {
        uname = StringHelper.getLikeUpperStr(uname);
        depcode = StringHelper.getRightLike(depcode);

        return userMapper.selectCount(uname, depcode);
    }

    @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, String depcode, Integer limit, Integer offset) {
        uname = StringHelper.getLikeUpperStr(uname);
        depcode = StringHelper.getRightLike(depcode);

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

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

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

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

    @Override
    public List<RoleEntity> selectRoleByUserId(Integer id) {
        return userMapper.selectRoleByUserId(id);
    }

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

    @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 updateUser(UserEntity userEntity) {
        return userMapper.updateUser(userEntity);
    }

    @Override
    public Integer selectCountForRole(String uname, Integer roleid, String depcode) {
        uname = StringHelper.getLikeUpperStr(uname);
        depcode = StringHelper.getRightLike(depcode);

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

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

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

    @Override
    public Integer updateUsersPwd(Integer updateUser, String pwd, List<Integer> ids) {
        return userMapper.updateUsersPwd(updateUser, pwd, ids);
    }

    /**
     * 验证用户实体类
     */
    public String validateUserEntity(UserEntity entity) {
        if (entity == null) {
            return "没有找到用户";
        }
        if (StringHelper.isEmpty(entity.getUid())) {
            return "用户ID不能为空";
        }
        if (StringHelper.isEmpty(entity.getPwd())) {
            return "用户密码不能为空";
        }

        return null;
    }

    /**
     * 验证登录用户密码
     */
    public String validateLoginPwd(UserEntity entity) {
        try {
            String str = validateUserEntity(entity);
            if (str != null) {
                return str;
            }

            // 解密
            String uid = RsaHelper.decrypt(entity.getUid());
            String pwd = RsaHelper.decrypt(entity.getPwd());

            entity.setUid(uid);
            entity.setPwd(pwd);

            if (tokenService.isUidDisable(entity)) {
                return "用户ID已禁用";
            }

            return null;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return "解密失败";
        }
    }

    /**
     * 验证新用户密码
     */
    @SuppressWarnings("AlibabaRemoveCommentedCode")
    public String validateNewPwd(UserEntity entity) {
        try {
            String str = validateUserEntity(entity);
            if (str != null) {
                return str;
            }

            // 解密
            String uid = RsaHelper.decrypt(entity.getUid());
            /*String pwd = RsaHelper.decrypt(entity.getPwd());
            if (!StringHelper.isPwdValid(pwd)) {
                return "密码不符合要求";
            }

            String newPwd = Md5Helper.reverse(Md5Helper.generate(pwd));
            entity.setPwd(newPwd);*/
            entity.setUid(uid);

            return null;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return "解密失败";
        }
    }

    /**
     * 验证老用户密码
     */
    public String validateOldPwd(UserEntity entity) {
        try {
            String str = validateUserEntity(entity);
            if (str != null) {
                return str;
            }
            if (StringHelper.isEmpty(entity.getSalt())) {
                return "新密码不能为空";
            }

            String uid = RsaHelper.decrypt(entity.getUid());
            String pwd = RsaHelper.decrypt(entity.getPwd());
            String salt = RsaHelper.decrypt(entity.getSalt());

            UserEntity ue = selectByUid(uid);
            if (ue == null) {
                return "没有找到用户";
            }
            if (!Md5Helper.validatePassword(pwd, ue.getPwd())) {
                tokenService.setPwdErrCache(ue);
                return "旧密码不正确";
            }
            if (StringHelper.isPwdInvalid(salt)) {
                return "密码不符合要求";
            }

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

            return null;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return "解密失败";
        }
    }

    /**
     * 验证管理员密码
     */
    public String validateAdminPwd(UserEntity ue, String adminPwd) {
        if (ue == null) {
            return "没有登录或超时";
        }
        if (StringHelper.isEmpty(adminPwd)) {
            return "管理员密码不能为空";
        }

        try {
            String pwd = RsaHelper.decrypt(adminPwd);
            if (!Md5Helper.validatePassword(pwd, ue.getPwd())) {
                tokenService.setPwdErrCache(ue);
                return "管理员密码不正确";
            }

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

    /**
     * 验证新密码
     */
    public String validateNewPwd(UserEntity ue, String newPwd) {
        if (StringHelper.isEmpty(newPwd)) {
            return "新密码不能为空";
        }

        try {
            String pwd = RsaHelper.decrypt(newPwd);
            if (StringHelper.isPwdInvalid(pwd)) {
                return "密码不符合要求";
            }

            String dbPwd = Md5Helper.reverse(Md5Helper.generate(pwd));
            ue.setSalt(dbPwd);

            return null;
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            return "解密失败";
        }
    }
}