niki/validator/admin/kind_box/validator.go

package adminkindboxvalidator

import (
	"context"
	"fmt"

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

type Repository interface {
	KindBoxExist(ctx context.Context, kindBoxID uint) (bool, error)
}

type Validator struct {
	repo Repository
}

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

func (v Validator) doesKindBoxExist(value interface{}) error {
	kindBoxID, ok := value.(uint)
	if !ok {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	exists, err := v.repo.KindBoxExist(context.Background(), kindBoxID)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	if !exists {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}