// Spectre 2
//
// Douglas Thrift
//
// $Id$

#include "SignalHandler.hpp"
#include "Mounter.hpp"
#include "Unmounter.hpp"
#include "Matcher/Matcher.hpp"

#include <menes-api/exename.hpp>
#include <menes-api/files.hpp>
#include <menes-app/application.hpp>

extern "C"
{
#include <sys/types.h>
#include <unistd.h>
}

struct Spectre2Command : public app::Application
{
	virtual int Run(const app::ArgumentList& args)
	{
		ext::String config("spectre.xml"), pid("spectre.pid");
		bool fork(false);

		_foreach (app::ArgumentList, arg, args)
		{
			Matcher matcher;

			if (*arg == matcher("^-config=(.*)$")) config = matcher[1];
			else if (*arg == "-fork") fork = true;
			else if (*arg == matcher("^-pid=(.*)$")) pid = matcher[1];
			else if (*arg == "-D") Spectre2::debug = true;
			else
			{
				api::Cerr << "Usage: " << Spectre2::program << " [-config=config] [-fork] [-pid=pid] [-D]" << ios::NewLine;

				return 1;
			}
		}

		if (fork && api::Posix::CheckError(::fork())) return 0;

		Spectre2(config, pid);

		return 0;
	}
} spectre;

Spectre2::Spectre2(const ext::String& config, const ext::String& pid) : pid(pid)
{
	{
		api::FileWriter out(pid);
		ios::FormatWriter fout(out);

		fout << ::getpid() << ios::NewLine;
	}

	Mounter mounter(config);
	Unmounter unmounter(config);
	Daemon* daemons[] = { static_cast<Daemon*>(&mounter), static_cast<Daemon*>(&unmounter) };
	SignalHandler handler(daemons, sizeof (daemons) / sizeof (*daemons));
}

Spectre2::~Spectre2()
{
	api::Posix::CheckError(::unlink(pid.NullTerminate()));
}

ext::String Spectre2::program(api::GetExecutablePath().GetName());
bool Spectre2::debug(false);