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

#pragma once

#include <zenhttp/httpserver.h>
#include <zenhttp/httpstats.h>
#include <zenhttp/httpstatus.h>
#include <zentelemetry/stats.h>

namespace zen {

class SessionsService;

class HttpSessionsService final : public HttpService, public IHttpStatusProvider, public IHttpStatsProvider
{
public:
	HttpSessionsService(HttpStatusService& StatusService, HttpStatsService& StatsService, SessionsService& Sessions);
	virtual ~HttpSessionsService();

	virtual const char* BaseUri() const override;
	virtual void		HandleRequest(HttpServerRequest& Request) override;

	virtual CbObject CollectStats() override;
	virtual void	 HandleStatsRequest(HttpServerRequest& Request) override;
	virtual void	 HandleStatusRequest(HttpServerRequest& Request) override;

private:
	struct SessionsStats
	{
		std::atomic_uint64_t SessionReadCount{};
		std::atomic_uint64_t SessionWriteCount{};
		std::atomic_uint64_t SessionDeleteCount{};
		std::atomic_uint64_t SessionListCount{};
		std::atomic_uint64_t RequestCount{};
		std::atomic_uint64_t BadRequestCount{};
	};

	inline LoggerRef Log() { return m_Log; }

	LoggerRef m_Log;

	void Initialize();

	void ListSessionsRequest(HttpRouterRequest& Req);
	void SessionRequest(HttpRouterRequest& Req);

	HttpStatusService&		 m_StatusService;
	HttpStatsService&		 m_StatsService;
	HttpRequestRouter		 m_Router;
	SessionsService&		 m_Sessions;
	SessionsStats			 m_SessionsStats;
	metrics::OperationTiming m_HttpRequests;
};

}  // namespace zen