#pragma once

#include "CoreMinimal.h"
#include "Core/DescentWorldSubsystem.h"
#include "GameFramework/SaveGame.h"
#include "DescentSave.generated.h"

USTRUCT()
struct FDescentSavedTender
{
	GENERATED_BODY()
	UPROPERTY() bool bOut = false;
	UPROPERTY() FVector PosUU = FVector::ZeroVector;
	UPROPERTY() FRotator Rot = FRotator::ZeroRotator;
	UPROPERTY() double Hull = 100.0;
	UPROPERTY() double Power = 100.0;
	UPROPERTY() double BioFu = 0.0;
	UPROPERTY() TArray<FName> Hold;
};

USTRUCT()
struct FDescentSavedPlaceable
{
	GENERATED_BODY()
	UPROPERTY() int32 Id = 0;
	UPROPERTY() FName Kit;
	UPROPERTY() FVector PosM = FVector::ZeroVector;
	UPROPERTY() double YawDeg = 0.0;
	UPROPERTY() uint8 Surface = 1;
	UPROPERTY() TArray<uint8> Queue;       // refinery
	UPROPERTY() double Progress = 0.0;
	UPROPERTY() bool bPower = true;        // arm
	UPROPERTY() int32 Moved = 0;
};

USTRUCT()
struct FDescentSavedBox
{
	GENERATED_BODY()
	UPROPERTY() uint8 Type = 0;
	UPROPERTY() int32 Count = 0;
	UPROPERTY() FString Where;
	UPROPERTY() FVector LocalM = FVector::ZeroVector;
};

/** The save of DESIGN_UE.md section 6.12, slot `descent_0`. */
UCLASS()
class THEDESCENT_API UDescentSaveGame : public USaveGame
{
	GENERATED_BODY()

public:
	UPROPERTY() int32 Version = 1;
	// player
	UPROPERTY() double Nutrition = 42.0;
	UPROPERTY() double O2Max = 45.0;
	UPROPERTY() double Health = 100.0;
	UPROPERTY() double Fees = 0.0;
	UPROPERTY() int32 Deaths = 0;
	UPROPERTY() TArray<FName> InvItems;
	UPROPERTY() TArray<int32> InvCounts;
	UPROPERTY() TArray<FName> Hotbar;
	// economy
	UPROPERTY() double Earned = 0.0;
	UPROPERTY() int32 Sold = 0;
	UPROPERTY() TArray<int32> Refined;
	UPROPERTY() TArray<FName> Upgrades;
	UPROPERTY() TArray<FName> KitNames;
	UPROPERTY() TArray<int32> KitCounts;
	// carrier
	UPROPERTY() FVector CarrierPosM = FVector::ZeroVector;
	UPROPERTY() double CarrierYawDeg = 0.0;
	UPROPERTY() double CarrierHull = 100.0;
	UPROPERTY() double CarrierPower = 100.0;
	UPROPERTY() double BiomassFU = 0.0;
	UPROPERTY() TArray<FName> VatFauna;
	// Tenders, placeables, boxes
	UPROPERTY() TArray<FDescentSavedTender> Tenders;
	UPROPERTY() TArray<FDescentSavedPlaceable> Placeables;
	UPROPERTY() TArray<FDescentSavedBox> Boxes;
	UPROPERTY() TArray<uint8> PackerBuffer;
	UPROPERTY() TArray<int32> PackerPartial;
	// terrain and ore
	UPROPERTY() TArray<uint8> Terrain;
	UPROPERTY() int32 TerrainRawSize = 0;
	UPROPERTY() TArray<int32> OreMined;
	UPROPERTY() TArray<int32> OreRemoved;
	// map and horror (M9)
	UPROPERTY() TArray<uint8> MapSurvey;
	UPROPERTY() TArray<FVector> Markers;
	UPROPERTY() TArray<FName> HorrorFlags;
	UPROPERTY() double SimTime = 0.0;
};

UCLASS()
class THEDESCENT_API UDescentSaveSubsystem : public UDescentWorldSubsystem
{
	GENERATED_BODY()

public:
	static UDescentSaveSubsystem* Get(const UWorld* World);
	static const TCHAR* SlotName() { return TEXT("descent_0"); }

	UDescentSaveGame* Capture();
	bool Apply(const UDescentSaveGame* Save);
	bool SaveToSlot(FString* OutWhyNot = nullptr);
	bool LoadFromSlot(FString* OutWhyNot = nullptr);
	bool HasSave() const;
	int32 Saves = 0, Loads = 0;

	/** Other systems (biomass, map, horror) add their own blocks. */
	DECLARE_MULTICAST_DELEGATE_OneParam(FOnSaveBlock, UDescentSaveGame*);
	FOnSaveBlock OnCapture;
	DECLARE_MULTICAST_DELEGATE_OneParam(FOnLoadBlock, const UDescentSaveGame*);
	FOnLoadBlock OnApply;
};