#pragma once

#include "CoreMinimal.h"
#include "DTFluxCoreSubsystemModule.h"
#include "Assets/DTFluxModelAsset.h"
#include "Containers/Deque.h"
#include "Types/Struct/FDTFluxPursuitInfo.h"
#include "Subsystems/EngineSubsystem.h"
#include "Types/Struct/DTFluxRaceDataStructs.h"
#include "Types/Struct/DTFluxTeamListStruct.h"
#include "Types/Struct/DTFluxRankingStructs.h"
#include "Types/Struct/DTFluxSplitSensor.h"
#include "DTFluxCoreSubsystem.generated.h"


class UDTFluxNetworkSubsystem;
/** Forward Decl */
class UDTFluxModelAsset;
class UDTFluxPursuitManager;
struct FDTFluxServerResponse;


/**
 * 
 */
UCLASS(BlueprintType, meta=(DisplayName="DTFlux Core Subsystem"))
class DTFLUXCORESUBSYSTEM_API UDTFluxCoreSubsystem : public UEngineSubsystem
{
	GENERATED_BODY()

public:
	DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnSplitRankings, FDTFluxSplitKey, SplitKey, FDTFluxSplitRankings,
	                                             SplitRankings);

	UPROPERTY(BlueprintAssignable, Category="DTFlux|Core Subsystem")
	FOnSplitRankings OnSplitRankings;

	DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnStageRankings, FDTFluxStageKey, StageKey, FDTFluxStageRankings,
	                                             StageRankings);

	UPROPERTY(BlueprintAssignable, Category="DTFlux|Core Subsystem")
	FOnStageRankings OnStageRankings;

	DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FOnContestRankings, const int, ContestId, FDTFluxContestRankings,
	                                             ContestRankings);

	UPROPERTY(BlueprintAssignable, Category="DTFlux|Core Subsystem")
	FOnContestRankings OnContestRankings;

	DECLARE_DYNAMIC_MULTICAST_DELEGATE(FOnTeamList);

	UPROPERTY(BlueprintAssignable, Category="DTFlux|Core Subsystem")
	FOnTeamList OnTeamList;
	DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnTeamStatusUpdate, FDTFluxParticipant, TeamUpdated);

	UPROPERTY(BlueprintAssignable, Category="DTFlux|Core Subsystem")
	FOnTeamStatusUpdate OnTeamStatusUpdate;

	UPROPERTY(BlueprintReadOnly, Category="DTFlux|Core Subsystem")
	UDTFluxPursuitManager* PursuitManager = nullptr;

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetContestRankings(const int ContestId, FDTFluxContestRankings& OutContestRankings);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetStageRankings(const int ContestId, const int StageId, FDTFluxStageRankings& OutStageRankings);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetSplitRankings(const int ContestId, const int StageId, const int SplitId,
	                      FDTFluxSplitRankings& OutSplitRankings);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetStageRankingsWithKey(const FDTFluxStageKey StageKey, FDTFluxStageRankings& OutStageRankings,
	                             const bool bShouldUseCached = true);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetSplitRankingsWithKey(const FDTFluxSplitKey SplitKey, FDTFluxSplitRankings& OutSplitRankings,
	                             const bool bShouldUseCached = true);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	TArray<FGuid> TrackedRequestContestRankings(const TArray<int> ForContests, bool bEnableCache = true);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	TArray<FGuid> TrackedRequestStageRankings(const TArray<FDTFluxStageKey> ForStages, bool bEnableCache = true);

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	TArray<FGuid> TrackedRequestSplitRankings(const TArray<FDTFluxSplitKey> ForSplits, bool bEnableCache = true);


	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	const FDTFluxParticipant GetParticipant(int InBib);

	//TODO : this must be a ProjectSetting
	UPROPERTY(BlueprintReadOnly, Category="DTFlux|Core Subsystem")
	bool bShouldKeepRankings = true;

	UFUNCTION()
	TArray<int> GetCurrentContestsId();
	UFUNCTION()
	TArray<FDTFluxContest> GetCurrentContests();
	UFUNCTION()
	TArray<int> GetContestsIdForTime(const FDateTime Time) const;
	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetContestForId(const int Id, FDTFluxContest& OutContest);
	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	TArray<FDTFluxContest> GetContestsForTime(const FDateTime Time);

	UFUNCTION()
	void RequestRankingsForStages(const TArray<FDTFluxStage> RequestedStages) const;
	UFUNCTION()
	TArray<FDTFluxContest> GetContests();

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	void GetContest(const int ContestId, FDTFluxContest& OutContest)
	{
		OutContest = FDTFluxContest();
		if (GetContestForId(ContestId, OutContest))
		{
			return;
		}
		UE_LOG(logDTFluxCoreSubsystem, Warning, TEXT("ContestId %d not found in ContestDefinition"), ContestId)
	}

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetStageDefinition(const FDTFluxStageKey StageKey, FDTFluxStage& OutStageDefinition)
	{
		int ContestId = StageKey.ContestId;
		int StageId = StageKey.StageId;
		FDTFluxContest ContestDefinition;
		if (GetContestForId(ContestId, ContestDefinition))
		{
			if (ContestDefinition.Stages.IsValidIndex(StageId))
			{
				OutStageDefinition = ContestDefinition.Stages[StageId];
				return true;
			}
		}
		OutStageDefinition = FDTFluxStage();
		UE_LOG(logDTFluxCoreSubsystem, Warning, TEXT("ContestId %d, StageId %d not found in ContestDefinition"),
		       ContestId, StageId)
		return false;
	}

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	bool GetSplitDefinition(const FDTFluxSplitKey SplitKey, FDTFluxSplit& OutSplitDefinition)
	{
		int ContestId = SplitKey.ContestId;
		int SplitId = SplitKey.SplitId;
		FDTFluxContest ContestDefinition;
		if (GetContestForId(ContestId, ContestDefinition))
		{
			if (ContestDefinition.Splits.IsValidIndex(SplitId))
			{
				OutSplitDefinition = ContestDefinition.Splits[SplitId];
				return true;
			}
		}
		OutSplitDefinition = FDTFluxSplit();
		UE_LOG(logDTFluxCoreSubsystem, Warning, TEXT("ContestId %d, SplitId %d not found in ContestDefinition"),
		       ContestId, SplitId);
		return false;
	}

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	void GetStage(const int ContestId, const int StageId, FDTFluxStage& OutStageDefinition)
	{
		if (GetStageDefinition(FDTFluxStageKey(ContestId, StageId),
		                       OutStageDefinition))
		{
			return;
		}
		OutStageDefinition = FDTFluxStage();
	}

	UFUNCTION(BlueprintCallable, Category="DTFlux|Core Subsystem")
	void GetSplit(const int ContestId, const int StageId, const int SplitId, FDTFluxSplit& OutSplitDefinition)
	{
		if (GetSplitDefinition(FDTFluxSplitKey(ContestId, StageId, SplitId),
		                       OutSplitDefinition))
		{
			return;
		}
		OutSplitDefinition = FDTFluxSplit();
	}

protected:
	// ~Subsystem Interface
	virtual void Initialize(FSubsystemCollectionBase& Collection) override;
	virtual void Deinitialize() override;
	// ~Subsystem Interface
	UFUNCTION()
	void SaveDataStorage();
	UFUNCTION()
	void ProcessTrackedResponse(FDTFluxServerResponse& InResponse);

private:
	UDTFluxNetworkSubsystem* NetworkSubsystem = nullptr;
	UPROPERTY()
	UDTFluxModelAsset* DataStorage = nullptr;

	UFUNCTION()
	void ProcessRaceData(const FDTFluxRaceData& RaceDataDefinition);
	UFUNCTION()
	void ProcessTeamList(const FDTFluxTeamListDefinition& TeamListDefinition);
	UFUNCTION()
	void ProcessContestRanking(const FDTFluxContestRankings& ContestRankings);
	UFUNCTION()
	void ProcessStageRanking(const FDTFluxStageRankings& StageRankings);
	UFUNCTION()
	void ProcessSplitRanking(const FDTFluxSplitRankings& SplitRankings);
	UFUNCTION()
	void ProcessTeamStatusUpdate(const FDTFluxTeamStatusUpdate& NewParticipantStatus);
	UFUNCTION()
	void ProcessSplitSensor(const FDTFluxSplitSensorInfo& SplitSensorInfo);
	UFUNCTION()
	void ProcessTeamUpdate(const FDTFluxTeamListDefinition& TeamListDefinition);
	UFUNCTION()
	void SendRequest(const FString& Message);
	UFUNCTION()
	void RegisterDelegates();
};