package specifications

import (
	"autostore/internal/domain/entities"
	"time"
)

type ItemExpirationSpec struct{}

func NewItemExpirationSpec() *ItemExpirationSpec {
	return &ItemExpirationSpec{}
}

// IsExpired checks if an item is expired using the new condition-based specification
func (s *ItemExpirationSpec) IsExpired(item *entities.ItemEntity, currentTime time.Time) bool {
	return s.GetSpec(currentTime).IsSatisfiedBy(item)
}

// GetSpec returns a condition-based specification for checking item expiration
func (s *ItemExpirationSpec) GetSpec(currentTime time.Time) Specification[*entities.ItemEntity] {
	// Create a condition that checks if expirationDate <= currentTime
	spec := Lte("expirationDate", currentTime)
	return NewSimpleSpecification[*entities.ItemEntity](spec)
}

// GetConditionSpec returns the raw condition spec for query generation
func (s *ItemExpirationSpec) GetConditionSpec(currentTime time.Time) *Spec {
	return Lte("expirationDate", currentTime)
}