inventory-system-plugin/Source/ItemDatabase/Public/ItemDefinitionRow.h

// Copyright ExByte Studios. Item Interaction Ecosystem.

#pragma once

#include "CoreMinimal.h"
#include "Engine/DataTable.h"
#include "GameplayTagContainer.h"
#include "ItemPlacementRules.h"
#include "ItemDefinitionRow.generated.h"

class UTexture2D;
class UStaticMesh;

/**
 * Static, design-time data for an item type (section 4.2 / 6.1 DT_Items).
 *
 * One row per ItemId. Assets are soft references so the database never force-loads
 * meshes/icons just to answer a flag query (section 33). Never replicated; never
 * saved - only the ItemId travels in FItemInstanceData.
 */
USTRUCT(BlueprintType)
struct ITEMDATABASE_API FItemDefinitionRow : public FTableRowBase
{
	GENERATED_BODY()

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Identity")
	FName ItemId;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Identity")
	FText DisplayName;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Identity", meta = (MultiLine = true))
	FText Description;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Identity")
	FGameplayTag ItemType;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Identity")
	FGameplayTagContainer ItemTags;

	// --- Visuals (soft refs, section 33) ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Visual")
	TSoftObjectPtr<UTexture2D> Icon;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Visual")
	TSoftObjectPtr<UStaticMesh> WorldMesh;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Visual")
	TSoftClassPtr<AActor> PickupActorClass;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Visual")
	TSoftClassPtr<AActor> EquippedActorClass;

	// --- Stacking / weight / grid ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Stack", meta = (ClampMin = "1"))
	int32 MaxStack = 1;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Stack", meta = (ClampMin = "0"))
	float Weight = 0.f;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Stack")
	FIntPoint GridSize = FIntPoint(1, 1);

	// --- Capability flags (section 4.2) ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanStoreInInventory = true;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanInstantPickup = true;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanWorldCarry = false;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanEquip = false;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanPlace = false;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanInstallIntoWorldSlot = false;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bCanDrop = true;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Capabilities")
	bool bIsQuestCritical = false;

	// --- Interaction defaults ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Interaction")
	FGameplayTag DefaultInteraction;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Interaction")
	FGameplayTag AlternativeInteraction;

	// --- Slot compatibility ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Slots")
	FGameplayTagContainer AllowedEquipmentSlots;

	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Slots")
	FGameplayTagContainer CompatibleWorldSlots;

	// --- Features ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Features")
	FGameplayTagContainer ItemFeatures;

	// --- Placement (section 13.3); only meaningful when bCanPlace ---
	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Placement", meta = (EditCondition = "bCanPlace"))
	FItemPlacementRules PlacementRules;

	bool HasFeature(const FGameplayTag& Feature) const { return ItemFeatures.HasTag(Feature); }
};