// Copyright 2025 https://yuewu.dev/en  All Rights Reserved.

#pragma once

#include "CoreMinimal.h"
#include "GameplayTagContainer.h"
#include "GCS_BulletStructLibrary.h"
#include "Net/Serialization/FastArraySerializer.h"
#include "UObject/Object.h"
#include "GCS_BulletContainer.generated.h"


struct FGCS_BulletContainer;
class UGCS_BulletSystemComponent;

/**
 * Structure representing an equipment entry in the container.
 * 表示容器中装备条目的结构体。
 * @note WIP
 */
USTRUCT(BlueprintType)
struct GENERICCOMBATSYSTEM_API FGCS_BulletEntry : public FFastArraySerializerItem
{
	GENERATED_BODY()

	friend FGCS_BulletContainer;

	//The request id of this entry.
	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="GCS")
	FGuid Id;

	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="GCS")
	FGCS_BulletSpawnParameters SpawnParameters;
};

/**
 * Container for a list of applied equipment.
 * 存储已应用装备列表的容器。
 */
USTRUCT()
struct GENERICCOMBATSYSTEM_API FGCS_BulletContainer : public FFastArraySerializer
{
	GENERATED_BODY()

	FGCS_BulletContainer()
		: OwningComponent(nullptr)
	{
	}

	FGCS_BulletContainer(UGCS_BulletSystemComponent* InComponent)
		: OwningComponent(InComponent)
	{
	}

	void PreReplicatedRemove(const TArrayView<int32> RemovedIndices, int32 FinalSize);


	void PostReplicatedAdd(const TArrayView<int32> AddedIndices, int32 FinalSize);

	void PostReplicatedChange(const TArrayView<int32> ChangedIndices, int32 FinalSize);
	//~End of FFastArraySerializer contract

	bool NetDeltaSerialize(FNetDeltaSerializeInfo& DeltaParms)
	{
		return FastArrayDeltaSerialize<FGCS_BulletEntry, FGCS_BulletContainer>(Entries, DeltaParms, *this);
	}


	int32 IndexOfById(const FGuid& Id) const;

	UPROPERTY(VisibleAnywhere, Category="BulletSystem", meta=(ShowOnlyInnerProperties, DisplayName="Bullets"))
	TArray<FGCS_BulletEntry> Entries;

	UPROPERTY()
	TObjectPtr<UGCS_BulletSystemComponent> OwningComponent;
};

template <>
struct TStructOpsTypeTraits<FGCS_BulletContainer> : TStructOpsTypeTraitsBase2<FGCS_BulletContainer>
{
	enum { WithNetDeltaSerializer = true };
};