#include "RTSPRecorder.h"
#include "Util/Util.h"
#include <HttpClient.h>
#include <Logging.h>
#include <iostream>


namespace CameraRecorder {
namespace Recorder {

RTSPRecorder::RTSPRecorder(Http::HttpClient* pHttpClient, const Settings& settings) :
	m_pHttpClient(pHttpClient),
	m_settings(settings)
{
}

RTSPRecorder::~RTSPRecorder()
{
}

std::string RTSPRecorder::Snapshot(ctpl::thread_pool* pThreadPool, const std::string& ffmpeg)
{
	Logging::Log(Logging::Severity::Debug, "RTSPRecorder Snapshot");

	std::string folderName = GetFolderName(m_settings);
	if (!Util::FolderExists(folderName))
	{
		try
		{
			Util::CreateFolder(folderName);
		}
		catch (const std::exception& e)
		{
			std::cerr << "Exception caught" << std::endl;

			std::stringstream ss;
			ss << "Type : " << typeid(e).name() << std::endl;
			ss << "ERROR: " << e.what() << std::endl;

			Logging::Log(Logging::Severity::Error, ss.str());

			return std::string();
		}
	}

	std::string dateTimeString = Util::GetDateTimeString();
	std::string fileName = GetFileName(m_settings, "jpg", dateTimeString, 0);

	Http::HttpClient* pHttpClient = m_pHttpClient;
	Settings settings = m_settings;
	RTSPRecorder::Snapshots(ffmpeg, settings, dateTimeString, 1);

	return fileName;
}

std::string RTSPRecorder::MultiSnapshot(ctpl::thread_pool* pThreadPool, const std::string& ffmpeg, int numberOfImages)
{
	Logging::Log(Logging::Severity::Debug, "RTSPRecorder MultiSnapshot");

	std::string folderName = GetFolderName(m_settings);
	if (!Util::FolderExists(folderName))
	{
		try
		{
			Util::CreateFolder(folderName);
		}
		catch (const std::exception& e)
		{
			std::cerr << "Exception caught" << std::endl;

			std::stringstream ss;
			ss << "Type : " << typeid(e).name() << std::endl;
			ss << "ERROR: " << e.what() << std::endl;

			Logging::Log(Logging::Severity::Error, ss.str());

			return std::string();
		}
	}

	std::string dateTimeString = Util::GetDateTimeString();
	std::string fileName = GetFileName(m_settings, "jpg", dateTimeString, 0);

	Http::HttpClient* pHttpClient = m_pHttpClient;
	Settings settings = m_settings;
	pThreadPool->push( [ffmpeg, settings, dateTimeString, numberOfImages](int) { RTSPRecorder::Snapshots(ffmpeg, settings, dateTimeString, numberOfImages); } );

	return fileName;
}

std::string RTSPRecorder::Video(ctpl::thread_pool* pThreadPool, const std::string& ffmpeg)
{
	Logging::Log(Logging::Severity::Debug, "RTSPRecorder Video");

	std::stringstream url;
	url << "rtsp://" << m_settings.Username << ":" << m_settings.Password << "@" << m_settings.IpAddress << ":" << m_settings.Port << m_settings.URL;

	std::string folderName = GetFolderName(m_settings);
	if (!Util::FolderExists(folderName))
	{
		try
		{
			Util::CreateFolder(folderName);
		}
		catch (const std::exception& e)
		{
			std::cerr << "Exception caught" << std::endl;

			std::stringstream ss;
			ss << "Type : " << typeid(e).name() << std::endl;
			ss << "ERROR: " << e.what() << std::endl;

			Logging::Log(Logging::Severity::Error, ss.str());

			return std::string();
		}
	}

	std::string dateTimeString = Util::GetDateTimeString();
	std::string fileName = GetFileName(m_settings, "mp4", dateTimeString, 0);

	std::stringstream command;
	command << ffmpeg << " -rtsp_transport tcp -i \"" << url.str() << "\" -t 30 -timeout 60 -c:v copy -strict experimental " << fileName << " > /dev/null 2>&1 ; " << ffmpeg << " -i " << fileName << " -vf \"select=eq(n\\,0)\" -q:v 3 " << fileName << ".jpg > /dev/null 2>&1";

	std::string cmd(command.str());
	Logging::Log(Logging::Severity::Debug, cmd);
	pThreadPool->push( [cmd](int) { int retval = std::system(cmd.c_str()); } );

	return fileName;
}

std::string RTSPRecorder::GetFolderName(const Settings& settings)
{
	filesystem::path fileLocation(settings.Path);
	fileLocation = fileLocation / filesystem::path(settings.IpAddress);

	return fileLocation.str();
}

std::string RTSPRecorder::GetFileName(const Settings& settings, const std::string& extension, const std::string& dateTimeString, int imageIndex)
{
	filesystem::path fileLocation(GetFolderName(settings));

	std::string fileName = std::string(dateTimeString).append("_").append(std::to_string(imageIndex)).append(".").append(extension);
	filesystem::path fullFileName = fileLocation / filesystem::path(fileName);

	return fullFileName.str();
}

void RTSPRecorder::Snapshots(const std::string& ffmpeg, const Settings& settings, std::string dateTimeString, int numberOfImages)
{
	for (int i = 0; i < numberOfImages; ++i)
		RTSPRecorder::Snapshot(ffmpeg, settings, RTSPRecorder::GetFileName(settings, "jpg", dateTimeString, i));
}

void RTSPRecorder::Snapshot(const std::string& ffmpeg, const Settings& settings, const filesystem::path& fileName)
{
	std::stringstream url;
	url << "rtsp://" << settings.Username << ":" << settings.Password << "@" << settings.IpAddress << ":" << settings.Port << settings.URL;

	std::stringstream command;
	command << ffmpeg << " -rtsp_transport tcp -i \"" << url.str() << "\" -vframes 1 -qscale:v 2 " << fileName << " > /dev/null 2>&1";

	std::string cmd(command.str());
	Logging::Log(Logging::Severity::Debug, cmd);
	int retval = std::system(cmd.c_str());
}

} // namespace Recorder
} // namespace CameraRecorder