DedicatedServerCourse/Source/DedicatedServers/Private/UI/Portal/PortalManager.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "UI/Portal/PortalManager.h"

#include "HttpModule.h"
#include "JsonObjectConverter.h"
#include "Data/API/APIData.h"
#include "GameplayTags/DedicatedServerTags.h"
#include "Interfaces/IHttpResponse.h"
#include "UI/HTTP/HTTPRequestTypes.h"

void UPortalManager::JoinGameSession()
{
	BroadcastJoinGameSessionMessage.Broadcast(TEXT("Searching for Game Session..."), false);
	
	check(APIData);
	
	TSharedPtr<IHttpRequest> Request = FHttpModule::Get().CreateRequest();
	Request->OnProcessRequestComplete().BindUObject(this, &UPortalManager::FindOrCreateGameSession_Response);
	
	const FString APIUrl = APIData->GetAPIEndPoint(DedicatedServersTags::GameSessionsAPI::FindOrCreateGameSession);
	
	Request->SetURL(APIUrl);
	Request->SetVerb("POST");
	Request->SetHeader("Content-Type", "application/json");
	Request->ProcessRequest();
}

void UPortalManager::FindOrCreateGameSession_Response(FHttpRequestPtr Request, FHttpResponsePtr Response,
	bool bWasSuccessful)
{
	GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, TEXT("Find or Create Game Session Response Received"));
	
	if (!bWasSuccessful)
	{
		BroadcastJoinGameSessionMessage.Broadcast(HTTPStatusMessages::SomethingWentWrong, true);
	}
	
	TSharedPtr<FJsonObject> JsonObject;
	TSharedRef<TJsonReader<>> JsonReader = TJsonReaderFactory<>::Create(Response->GetContentAsString());
	if (FJsonSerializer::Deserialize(JsonReader, JsonObject))
	{
		if (ContainsErrors(JsonObject))
		{
			BroadcastJoinGameSessionMessage.Broadcast(HTTPStatusMessages::SomethingWentWrong, true);
		}
		DumpMetadata(JsonObject);
		
		if (JsonObject->HasField(TEXT("GameProperties")))
		{
			auto PropertiesArray = JsonObject->GetArrayField(TEXT("GameProperties"));
			TSharedPtr<FJsonObject> FlatMapJson = MakeShareable(new FJsonObject);
			
			for (auto& PropJson : PropertiesArray)
			{
				auto PropObj = PropJson->AsObject();
				FString Key = PropObj->GetStringField(TEXT("Key"));
				FString Value = PropObj->GetStringField(TEXT("Value"));
				FlatMapJson->SetStringField(Key, Value);
			}
			//  Replace the array with a flat map field
			JsonObject->SetObjectField(TEXT("GameProperties"), FlatMapJson);
		}
		
		
		FDSGameSession GameSession;
		FJsonObjectConverter::JsonObjectToUStruct(JsonObject.ToSharedRef(), &GameSession);
		GameSession.Dump();
		BroadcastJoinGameSessionMessage.Broadcast(TEXT("Found Game Session."), false);
	}
}