package kindbox

import (
	"fmt"

	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
)

type Repository interface {
	ReceiverUserExist(id int) (bool, error)
	SenderUserExist(id int) (bool, error)
}

type Validator struct {
	repo Repository
}

func New(repo Repository) Validator {
	return Validator{repo: repo}
}

func (v Validator) doesReceiverUserExist(value interface{}) error {
	receiverId := value.(int)
	_, err := v.repo.ReceiverUserExist(receiverId)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}

func (v Validator) doesSenderUserExist(value interface{}) error {
	senderId := value.(int)
	_, err := v.repo.SenderUserExist(senderId)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}