From 5496613f149a6033444a89047f4ef3b5269e4d4a Mon Sep 17 00:00:00 2001
From: Lucas Peter <lucas.peter@ubisoft.com>
Date: Thu, 19 Sep 2024 14:03:16 +0200
Subject: [PATCH] Connect to portal

---
 .../SkyPortal/Private/SkyPortalSubsystem.cpp  | 42 ++++++++++++++++++-
 Source/SkyPortal/Public/SkyPortalSubsystem.h  | 26 ++++++++++++
 2 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/Source/SkyPortal/Private/SkyPortalSubsystem.cpp b/Source/SkyPortal/Private/SkyPortalSubsystem.cpp
index b8817a2..444acd8 100644
--- a/Source/SkyPortal/Private/SkyPortalSubsystem.cpp
+++ b/Source/SkyPortal/Private/SkyPortalSubsystem.cpp
@@ -1,9 +1,10 @@
 #include "SkyPortalSubsystem.h"
 #include "Engine/Engine.h"
-#include "hidapi.h"
+
 
 void USkyPortalSubsystem::Initialize(FSubsystemCollectionBase& Collection)
 {
+
 	Super::Initialize(Collection);
 	// Custom initialization logic
 	UE_LOG(LogTemp, Warning, TEXT("SkyPortalSubsystem Initialized"));
@@ -13,18 +14,55 @@ void USkyPortalSubsystem::Initialize(FSubsystemCollectionBase& Collection)
 	if (res == 0)
 	{
 		UE_LOG(LogTemp, Log, TEXT("HIDAPI initialized successfully."));
+
 	}
 	else
 	{
 		UE_LOG(LogTemp, Error, TEXT("Failed to initialize HIDAPI."));
+		HidError = hid_error(NULL);
+		UE_LOG(LogTemp, Error, TEXT("%s"), *HidError);
 	}
 
 }
 
 void USkyPortalSubsystem::Deinitialize()
 {
-	// Custom cleanup logic
+	// Disconnect portal
+	if (PortalDevice) {
+		hid_close(PortalDevice);
+	}
+	hid_exit();
+
 
 	UE_LOG(LogTemp, Warning, TEXT("SkyPortalSubsystem Deinitialized"));
 	Super::Deinitialize();
+}
+
+bool USkyPortalSubsystem::ConnectPortal() {
+	PortalDevice = hid_open(VendorId, ProductId, NULL); //Connect using constants
+	if (PortalDevice) {
+
+		ReadPortal();
+
+		return true;
+
+	}
+	else {
+		UE_LOG(LogTemp, Error, TEXT("Failed to connect to Portal."));
+		// Get the error message from the HIDAPI
+		HidError = hid_error(NULL);
+		UE_LOG(LogTemp, Error, TEXT("%s"), *HidError);
+		return false;
+	}
+
+
+}
+
+void USkyPortalSubsystem::ReadPortal() {
+	hid_read(PortalDevice, PortalRawData, 16);
+}
+
+FString USkyPortalSubsystem::RawData() {
+	FString Raw = "0";
+	return Raw;
 }
\ No newline at end of file
diff --git a/Source/SkyPortal/Public/SkyPortalSubsystem.h b/Source/SkyPortal/Public/SkyPortalSubsystem.h
index 539d36a..6825026 100644
--- a/Source/SkyPortal/Public/SkyPortalSubsystem.h
+++ b/Source/SkyPortal/Public/SkyPortalSubsystem.h
@@ -2,8 +2,12 @@
 
 #include "CoreMinimal.h"
 #include "Subsystems/EngineSubsystem.h"
+#include "hidapi.h"
+
+
 #include "SkyPortalSubsystem.generated.h"
 
+
 UCLASS()
 class SKYPORTAL_API USkyPortalSubsystem : public UEngineSubsystem
 {
@@ -13,4 +17,26 @@ public:
 	// Override initialization and deinitialization methods
 	virtual void Initialize(FSubsystemCollectionBase& Collection) override;
 	virtual void Deinitialize() override;
+
+	// Connect to Portal, return false if portal is not found
+	UFUNCTION(BlueprintCallable, CallInEditor)
+	bool ConnectPortal();
+
+	FString HidError;
+
+private:
+	//Portal ref used in the subsystem
+	hid_device* PortalDevice;
+
+	unsigned char* PortalRawData;
+
+	FString RawData();
+	void ReadPortal();
+
+protected:
+
+	//Constants
+	const int VendorId = 5168;
+	const int ProductId = 336;
 };
+