//
// SampleServer.cpp
//
// This sample demonstrates the ServerApplication class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier:	BSL-1.0
//


#include "Poco/Util/ServerApplication.h"
#include "Poco/Util/Option.h"
#include "Poco/Util/OptionSet.h"
#include "Poco/Util/HelpFormatter.h"
#include "Poco/Task.h"
#include "Poco/TaskManager.h"
#include "Poco/DateTimeFormatter.h"
#include <iostream>


using Poco::Util::Application;
using Poco::Util::ServerApplication;
using Poco::Util::Option;
using Poco::Util::OptionSet;
using Poco::Util::OptionCallback;
using Poco::Util::HelpFormatter;
using Poco::Task;
using Poco::TaskManager;
using Poco::DateTimeFormatter;


class SampleTask: public Task
{
public:
	SampleTask(): Task("SampleTask")
	{
	}
	
	void runTask()
	{
		Application& app = Application::instance();
		while (!sleep(5000))
		{
			Application::instance().logger().information("busy doing nothing... " + DateTimeFormatter::format(app.uptime()));
		}
	}
};


class SampleServer: public ServerApplication
{
public:
	SampleServer(): _helpRequested(false)
	{
	}
	
	~SampleServer()
	{
	}

protected:
	void initialize(Application& self)
	{
		loadConfiguration(); // load default configuration files, if present
		ServerApplication::initialize(self);
		logger().information("starting up");
	}
		
	void uninitialize()
	{
		logger().information("shutting down");
		ServerApplication::uninitialize();
	}

	void defineOptions(OptionSet& options)
	{
		ServerApplication::defineOptions(options);
		
		options.addOption(
			Option("help", "h", "display help information on command line arguments")
				.required(false)
				.repeatable(false)
				.callback(OptionCallback<SampleServer>(this, &SampleServer::handleHelp)));
	}

	void handleHelp(const std::string& name, const std::string& value)
	{
		_helpRequested = true;
		displayHelp();
		stopOptionsProcessing();
	}

	void displayHelp()
	{
		HelpFormatter helpFormatter(options());
		helpFormatter.setCommand(commandName());
		helpFormatter.setUsage("OPTIONS");
		helpFormatter.setHeader("A sample server application that demonstrates some of the features of the Util::ServerApplication class.");
		helpFormatter.format(std::cout);
	}

	int main(const ArgVec& args)
	{
		if (!_helpRequested)
		{
			TaskManager tm;
			tm.start(new SampleTask);
			waitForTerminationRequest();
			tm.cancelAll();
			tm.joinAll();
		}
		return Application::EXIT_OK;
	}
	
private:
	bool _helpRequested;
};


POCO_SERVER_MAIN(SampleServer)
