package service

import (
	"errors"
	"service-api/global"
	"service-api/model"
	"service-api/model/request"
	"service-api/utils"
	"time"

	uuid "github.com/satori/go.uuid"
	"gorm.io/gorm"
)

func FindUserByUuid(uuid string) (err error, user *model.User) {
	var u model.User
	if err = global.MG_DB.Where("`uuid` = ?", uuid).First(&u).Error; err != nil {
		return errors.New("user not exist"), &u
	}
	return nil, &u
}

func FindUserByEmail(email string) (err error, user *model.User) {
	var u model.User
	if err = global.MG_DB.Where("`email` = ?", email).First(&u).Error; err != nil {
		return errors.New("user not exist"), &u
	}
	return nil, &u
}

func CheckUserByEmailExist(email string) (err error, res bool) {
	var u model.User
	if err = global.MG_DB.Where("`email` = ?", email).First(&u).Error; err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
		return errors.New("find user error"), true
	}
	return nil, false
}

//@function: ForgetPassword
//@description: 修改用户密码
//@param: u *model.SysUser, newPassword string
//@return: err error, userInter *model.SysUser

func ForgetPassword(u request.ForgetPasswordStruct) (err error, userInter *model.User) {
	var user model.User
	auth := RedisGet("forget:email" + u.Email)
	if auth != u.Auth {
		return errors.New("认证码不正确"), &user
	}
	err = global.MG_DB.Where("email = ?", u.Email).First(&user).Update("password", utils.MD5V([]byte(u.NewPassword))).Error
	return err, &user
}

func Login(u *model.User) (err error, userInter *model.User) {
	var user model.User
	u.Password = utils.MD5V([]byte(u.Password))
	err = global.MG_DB.Where("email = ? AND password = ?", u.Email, u.Password).First(&user).Error
	return err, &user
}

func Register(u model.User) (err error, userInter model.User) {
	var user model.User
	if !errors.Is(global.MG_DB.Where("email = ?", u.Username).First(&user).Error, gorm.ErrRecordNotFound) { // 判断邮箱是否注册
		return errors.New("email is exist"), userInter
	}
	// 否则 附加uuid 密码md5简单加密 注册
	u.Password = utils.MD5V([]byte(u.Password))
	u.UUID = uuid.NewV4().String()
	now := time.Now()
	u.RegTime = &now
	u.Username = "user_" + utils.GetInvitation()
	err = global.MG_DB.Create(&u).Error
	if err != nil {
		err = errors.New("register failed")
	}
	return err, u
}

func UpdateUserDetail(p *request.UpdateUserDetailParams, userID string) error {
	return global.MG_DB.Model(&model.User{}).Where("uuid=?", userID).Updates(&p.UserDesc).Error
}