package service

import (
	"bytes"
	"encoding/base64"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"gorm.io/gorm"
	"iot_manager_service/app/user/dao"
	"iot_manager_service/util/cache"
	"iot_manager_service/util/common"
	"iot_manager_service/util/rsa"
	"iot_manager_service/util/token"
	"strconv"
)

// 用户管理服务
var UserService = new(userService)

type userService struct{}

func (s *userService) Login(acc string, pwd string) *common.Errors {
	userdao := &dao.User{}
	USER, err := userdao.LoginFindAccount(acc)
	if err != nil {
		if err == gorm.ErrRecordNotFound {
			return common.ParamsInvalidResponse("很抱歉，由于您的账号未完成注册或已被禁用，暂时无法使用。", nil)
		}
		return common.FailResponse(err.Error(), nil)
	}

	//加密
	//encryption := rsa.Encryption([]byte("123456"))
	//base64.StdEncoding.EncodeToString(encryption))
	//解密前端密文
	a, _ := base64.StdEncoding.DecodeString(pwd)
	client := rsa.Decryption(a)

	//解密数据库密文
	b, _ := base64.StdEncoding.DecodeString(USER.Password)
	mysql := rsa.Decryption(b)
	if !bytes.Equal(client, mysql) {
		return common.ParamsInvalidResponse("密码错误", err)
	}

	//登录成功则生成token
	UUID := uuid.New().String()
	USERID := strconv.Itoa(USER.ID)
	accessToken, _ := token.JwtClaims.CreateJwtToken(USERID, USER.UserName, UUID, 1)
	refreshToken, _ := token.JwtClaims.CreateJwtToken(USERID, USER.UserName, UUID, 24*7)
	cache.SetNowUser(USERID, UUID, USER)

	tokens := make(map[string]interface{})
	tokens["accessToken"] = accessToken
	tokens["refreshToken"] = refreshToken

	//TODO:到时候记得修改服务器域名
	urlWebSocket := "ws://localhost:8085/notice/websocket?userID=" + USERID
	return common.SuccessResponse("登录成功", gin.H{"token": tokens, "websocket": urlWebSocket})
}

func (s *userService) GetPublicKey() *common.Errors {
	pub, err := rsa.GetPubKey()
	if err != nil {
		return common.FailResponse(err.Error(), nil)
	}
	return common.SuccessResponse("获取公钥成功", gin.H{"publicKey": pub})
}

func (s *userService) GetDeptUsers(deptIDs []int) *common.Errors {
	deptdao := &dao.Dept{}
	depts, _ := deptdao.GetDepts(deptIDs)

	userdao := &dao.User{}
	users, _ := userdao.GetUsers()

	deptUsersMap := make(map[int][]dao.User)
	for _, user := range users {
		deptUsersMap[user.DeptId] = append(deptUsersMap[user.DeptId], user)
	}

	var deptUsers []dao.Dept
	for _, dept := range depts {
		users := deptUsersMap[dept.ID]
		deptUsers = append(deptUsers, dao.Dept{
			ID:       dept.ID,
			DeptName: dept.DeptName,
			Users:    users,
		})
	}
	//for i, dept := range depts {
	//	users1, _ := userdao.GetUsers1(dept.ID)
	//	depts[i].Users = users1
	//}

	return common.SuccessResponse("获取成功", gin.H{"deptUsers": deptUsers})
}