package system

import (
	"errors"
	"fmt"
	"github.com/sirupsen/logrus"
	systemReq "lcfns/model/system/request"
	"lcfns/model/system/response"
	"time"

	"github.com/gofrs/uuid/v5"
	"gorm.io/gorm"
	"lcfns/global"
	"lcfns/model/common/request"
	"lcfns/model/system"
	"lcfns/utils"
)

//@author: [piexlmax](https://github.com/piexlmax)
//@function: Register
//@description: 用户注册
//@param: u model.SysUser
//@return: userInter system.SysUser, err error

type UserService struct{}

func (userService *UserService) Register(u system.SysUser) (userInter system.SysUser, err error) {
	var user system.SysUser
	if !errors.Is(global.Db.Where("username = ?", u.Username).First(&user).Error, gorm.ErrRecordNotFound) { // 判断用户名是否注册
		return userInter, errors.New("用户名已注册")
	}
	// 否则 附加uuid 密码hash加密 注册
	u.Password = utils.BcryptHash(u.Password)
	u.UUID = uuid.Must(uuid.NewV4())
	err = global.Db.Create(&u).Error
	return u, err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: Login
//@description: 用户登录
//@param: u *model.SysUser
//@return: err error, userInter *model.SysUser

func (userService *UserService) Login(u *system.SysUser) (userInter *system.SysUser, err error) {
	if nil == global.Db {
		return nil, fmt.Errorf("db not init")
	}

	var user system.SysUser
	err = global.Db.Where("username = ?", u.Username).Preload("Authorities").Preload("Authority").First(&user).Error
	if err == nil {
		if ok := utils.BcryptCheck(u.Password, user.Password); !ok {
			return nil, errors.New("密码错误")
		}
		MenuServiceApp.UserAuthorityDefaultRouter(&user)
	}
	return &user, err
	//return nil, err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: ChangePassword
//@description: 修改用户密码
//@param: u *model.SysUser, newPassword string
//@return: userInter *model.SysUser,err error

func (userService *UserService) ChangePassword(u *system.SysUser, newPassword string) (userInter *system.SysUser, err error) {
	var user system.SysUser
	if err = global.Db.Where("id = ?", u.ID).First(&user).Error; err != nil {
		return nil, err
	}
	if ok := utils.BcryptCheck(u.Password, user.Password); !ok {
		return nil, errors.New("原密码错误")
	}
	user.Password = utils.BcryptHash(newPassword)
	err = global.Db.Save(&user).Error
	return &user, err

}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: GetUserInfoList
//@description: 分页获取数据
//@param: info request.PageInfo
//@return: err error, list interface{}, total int64

func (userService *UserService) GetUserInfoList(info request.PageInfo) (list interface{}, total int64, err error) {
	limit := info.PageSize
	offset := info.PageSize * (info.Page - 1)
	db := global.Db.Model(&system.SysUser{})
	var userList []system.SysUser
	err = db.Count(&total).Error
	if err != nil {
		return
	}
	err = db.Limit(limit).Offset(offset).Preload("Authorities").Preload("Authority").Find(&userList).Error
	return userList, total, err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: SetUserAuthority
//@description: 设置一个用户的权限
//@param: uuid uuid.UUID, authorityId string
//@return: err error

func (userService *UserService) SetUserAuthority(id uint, authorityId uint) (err error) {
	assignErr := global.Db.Where("sys_user_id = ? AND sys_authority_authority_id = ?", id, authorityId).First(&system.SysUserAuthority{}).Error
	if errors.Is(assignErr, gorm.ErrRecordNotFound) {
		return errors.New("该用户无此角色")
	}
	err = global.Db.Where("id = ?", id).First(&system.SysUser{}).Update("authority_id", authorityId).Error
	return err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: SetUserAuthorities
//@description: 设置一个用户的权限
//@param: id uint, authorityIds []string
//@return: err error

func (userService *UserService) SetUserAuthorities(id uint, authorityIds []uint) (err error) {
	return global.Db.Transaction(func(tx *gorm.DB) error {
		TxErr := tx.Delete(&[]system.SysUserAuthority{}, "sys_user_id = ?", id).Error
		if TxErr != nil {
			return TxErr
		}
		var useAuthority []system.SysUserAuthority
		for _, v := range authorityIds {
			useAuthority = append(useAuthority, system.SysUserAuthority{
				SysUserId: id, SysAuthorityAuthorityId: v,
			})
		}
		TxErr = tx.Create(&useAuthority).Error
		if TxErr != nil {
			return TxErr
		}
		TxErr = tx.Where("id = ?", id).First(&system.SysUser{}).Update("authority_id", authorityIds[0]).Error
		if TxErr != nil {
			return TxErr
		}
		// 返回 nil 提交事务
		return nil
	})
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: DeleteUser
//@description: 删除用户
//@param: id float64
//@return: err error

func (userService *UserService) DeleteUser(id int) (err error) {
	var user system.SysUser
	err = global.Db.Where("id = ?", id).Delete(&user).Error
	if err != nil {
		return err
	}
	err = global.Db.Delete(&[]system.SysUserAuthority{}, "sys_user_id = ?", id).Error
	return err
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: SetUserInfo
//@description: 设置用户信息
//@param: reqUser model.SysUser
//@return: err error, user model.SysUser

func (userService *UserService) SetUserInfo(req system.SysUser) error {
	return global.Db.Model(&system.SysUser{}).
		Select("updated_at", "nick_name", "header_img", "phone", "email", "sideMode", "enable").
		Where("id=?", req.ID).
		Updates(map[string]interface{}{
			"updated_at": time.Now(),
			"nick_name":  req.NickName,
			"header_img": req.HeaderImg,
			"phone":      req.Phone,
			"email":      req.Email,
			"side_mode":  req.SideMode,
			"enable":     req.Enable,
		}).Error
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: SetUserInfo
//@description: 设置用户信息
//@param: reqUser model.SysUser
//@return: err error, user model.SysUser

func (userService *UserService) SetSelfInfo(req system.SysUser) error {
	return global.Db.Model(&system.SysUser{}).
		Where("id=?", req.ID).
		Updates(req).Error
}

//@author: [piexlmax](https://github.com/piexlmax)
//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: GetUserInfo
//@description: 获取用户信息
//@param: uuid uuid.UUID
//@return: err error, user system.SysUser

func (userService *UserService) GetUserInfo(uuid uuid.UUID) (user system.SysUser, err error) {
	var reqUser system.SysUser
	err = global.Db.Preload("Authorities").Preload("Authority").First(&reqUser, "uuid = ?", uuid).Error
	if err != nil {
		return reqUser, err
	}
	MenuServiceApp.UserAuthorityDefaultRouter(&reqUser)
	return reqUser, err
}

//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: FindUserById
//@description: 通过id获取用户信息
//@param: id int
//@return: err error, user *model.SysUser

func (userService *UserService) FindUserById(id int) (user *system.SysUser, err error) {
	var u system.SysUser
	err = global.Db.Where("`id` = ?", id).First(&u).Error
	return &u, err
}

//@author: [SliverHorn](https://github.com/SliverHorn)
//@function: FindUserByUuid
//@description: 通过uuid获取用户信息
//@param: uuid string
//@return: err error, user *model.SysUser

func (userService *UserService) FindUserByUuid(uuid string) (user *system.SysUser, err error) {
	var u system.SysUser
	if err = global.Db.Where("`uuid` = ?", uuid).First(&u).Error; err != nil {
		return &u, errors.New("用户不存在")
	}
	return &u, nil
}

//@author: [piexlmax](https://github.com/piexlmax)
//@function: resetPassword
//@description: 修改用户密码
//@param: ID uint
//@return: err error

func (userService *UserService) ResetPassword(ID uint) (err error) {
	err = global.Db.Model(&system.SysUser{}).Where("id = ?", ID).Update("password", utils.BcryptHash("123456")).Error
	return err
}

func (userService *UserService) UserId(ID uint) (ids []response.IdName, err error) {
	db := global.Db.Select("id, username").Model(&system.SysUser{})
	if ID > 1 {
		db.Where("id = ?", ID)
	}
	err = db.Find(&ids).Error
	return
}

func (userService *UserService) SetAlarmEmail(uid uint, emails []systemReq.Email) string {
	var html = `
<!DOCTYPE html>
<html>
<head><title>邮箱确认</title></head>
<body><h1>
<a href="%s">点击链接绑定龙弛防溺水报警邮箱通知,10分钟内有效</a>
</h1></body>
</html>`
	//todo 修改ip
	var result string //已绑定的邮箱
	v4, _ := uuid.NewV4()
	for _, v := range emails {
		//已绑定,continue
		var id uint
		global.Db.Select("id").Table("sys_user_email").Where("uid = ? AND email = ?", uid, v.Email).Scan(&id)
		if id != 0 {
			result += v.Email
			continue
		}
		//未绑定,发送确认邮件
		s := v4.String()
		global.BlackCache.Set(s, v.Email, time.Minute*10)
		url := fmt.Sprintf(`http://192.168.110.69:8889/user/confirm?id=%d&code=%s`, uid, s)
		utils.Email(v.Email, "邮箱确认", fmt.Sprintf(html, url))
	}
	return result
}

func (userService *UserService) ConfirmEmail(id string, code string) string {
	var html = `
<!DOCTYPE html>
<html>
<head>
    <title>成功页面</title>
</head>
<body>
    <h1>邮箱绑定成功！</h1>
</body>
</html>`
	var fail = `
<!DOCTYPE html>
<html>
<body>
    <p>绑定失败,请联系管理员。</p>
</body>
</html>`
	v, ok := global.BlackCache.Get(code)
	if !ok {
		return fail
	}
	email := v.(string)
	err := global.Db.Table("sys_user_email").Create(map[string]interface{}{"uid": id, "email": email, "enable": 0}).Error
	if err != nil {
		logrus.Error("邮箱绑定失败", err)
		return fail
	}
	return html
}

// UnbindEmail 解绑邮箱
func (userService *UserService) UnbindEmail(uid uint, emails []systemReq.Email) string {
	var errStr string
	for _, email := range emails {
		err := global.Db.Table("sys_user_email").Where("uid = ? AND email = ?", uid, email.Email).Update("enable", 1).Error
		if err != nil {
			errStr += email.Email + " "
		}
	}
	return errStr
}