package adminkindboxvalidator

import (
	"fmt"

	errmsg "git.gocasts.ir/ebhomengo/niki/pkg/err_msg"
	validation "github.com/go-ozzo/ozzo-validation/v4"
)

type Repository interface {
	KindBoxRequestExist(id uint) (bool, error)
	EmployeeExist(id uint) (bool, error)
	BenefactorExist(id uint) (bool, error)
	KindBoxExist(id uint) (bool, error)
	KindBoxBelongToBenefactor(benefactorID uint, kindboxID uint) (bool, error)
	PendingStatus(id uint) (bool, error)
	CheckStatus(status string) (bool, error)
}

type Validator struct {
	repo Repository
}

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

func (v Validator) doesKindBoxRequestExist(value interface{}) error {
	receiverID, ok := value.(uint)
	if !ok {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	_, err := v.repo.KindBoxRequestExist(receiverID)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}

func (v Validator) doesEmployeeExist(value interface{}) error {
	senderID, ok := value.(uint)
	if !ok {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	_, err := v.repo.EmployeeExist(senderID)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}

func (v Validator) doesBenefactorExist(value interface{}) error {
	benefactorID, ok := value.(uint)
	if !ok {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	_, err := v.repo.BenefactorExist(benefactorID)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}

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

	return nil
}

func (v Validator) doesKindBoxBelongToBenefactor(benefactorID uint) validation.RuleFunc {
	return func(value interface{}) error {
		kbID, ok := value.(uint)
		if !ok {
			return fmt.Errorf(errmsg.ErrorMsgNotFound)
		}
		_, err := v.repo.KindBoxBelongToBenefactor(benefactorID, kbID)
		if err != nil {
			return fmt.Errorf(errmsg.ErrorMsgNotFound)
		}

		return nil
	}
}

// TODO: this temperary to ignore linter error. (unused function)
// func (v Validator) hasCorrectStatus(value interface{}) error {
// 	status, ok := value.(string)
// 	if !ok {
// 		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
// 	}
// 	_, err := v.repo.CheckStatus(status)
// 	if err != nil {
// 		return fmt.Errorf(errmsg.ErrorMsgNotFound)
// 	}

// 	return nil
// }

func (v Validator) hasPendingStatus(value interface{}) error {
	kindboxID, ok := value.(uint)
	if !ok {
		return fmt.Errorf(errmsg.ErrorMsgSomethingWentWrong)
	}
	_, err := v.repo.PendingStatus(kindboxID)
	if err != nil {
		return fmt.Errorf(errmsg.ErrorMsgNotFound)
	}

	return nil
}