// Copyright Epic Games, Inc. All Rights Reserved.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/GameModeBase.h"
#include "lpx-enginewrapper.hpp"
#include "DebugPrint.h"
#include "TangibleManager.h"
#include "LuprexSockets.h"
#include "TriggeredTask.h"
#include "IntegrationGameModeBase.generated.h"


/**
 * 
 */
UCLASS()
class INTEGRATION_API AIntegrationGameModeBase : public AGameModeBase, public FRunnable
{
	GENERATED_BODY()
	
public:
	AIntegrationGameModeBase();
	~AIntegrationGameModeBase();
	virtual void BeginPlay() override;
	virtual void Tick(float) override;
	virtual void EndPlay(const EEndPlayReason::Type EndPlayReason);

	// Delete all the state created in BeginPlay.  That
	// includes: the Luprex engine, the thread, and the socket state.
	void ResetToInitialState();

	// Set the entire contents of the console output box.
	UFUNCTION(BlueprintImplementableEvent)
	void ConsoleSetOutput(const FString& text);

	// This is called by the GUI whenever the user hits enter.
	UFUNCTION(BlueprintCallable)
	void ConsoleSendInput(const FString& text);

	// The blueprint class TangibleActor
	UPROPERTY(EditDefaultsOnly, Category = TangibleClasses)
	TSubclassOf<AActor> ClassTangibleActor;

	// Transfer console output from the Luprex engine to unreal.
	void UpdateConsoleOutput();

	// Update the tangibles according to what Luprex tells us.
	void UpdateTangibles();

	// Trigger the update task, if enough time has passed.
	void MaybeTriggerUpdateTask(float deltaseconds);

	// The run function is called by a background thread
	// to update luprex sockets and update luprex itself.
	virtual uint32 Run() override;

	UPROPERTY()
	UlxTangibleManager *TangibleManager;

	// This stores the entire text currently visible in the console.
	FlxConsoleOutput ConsoleOutput;

	// The Luprex EngineWrapper, with a Mutex to protect it.
	// To access it, construct a FlxLockedWrapper.
	FlxLockableWrapper LockableWrapper;

	// This utility runs the luprex update and socket update in a thread.
	FTriggeredTask LuprexUpdateTask;
	
	// Luprex socket system.  Aside from construction, only touched by Luprex thread.
	TUniquePtr<FlxSockets> Sockets;

	// True if 'BeginPlay' has been successfully completed.
	//
	bool Playing;

	// Amount of elapsed time since BeginPlay.
	float EngineSeconds;

	// When do we next trigger the thread event.
	float NextThreadTrigger;

	// When do we next rotate the cube.
	float NextRotateCube;
};