// Player
//
// Douglas Thrift
//
// $Id$

#include <menes/standard.hh>

#include <menes-api/pcre/regex.hpp>
#include <menes-api/posix/signals.hpp>
#include <menes-ext/stack.hpp>
#include <menes-hop/bind.hpp>

#include <signal.h>

#include "Player.hpp"

inline void Sleep()
{
	::timespec sleep = { 1, 0 };

	::nanosleep(&sleep, NULL);
}

Player::Player(const _R<dbi::Connection>& connection, int player) : state(STOPPED), remote(player), player_(remote.IsRunning() ? NULL : new _H<api::Process>(_B("/usr/X11R6/bin/beep-media-player"))), position(remote.GetPlaylistPosition()), adder(hop::BindAll(&Player::Adder, this)), copier(hop::BindAll(&Player::Copier, this))
{
	api::Posix::SetSignalHandler(SIGUSR2, hop::BindAll(&Player::Change, this));

	if (!player_.IsEmpty())
	{
		player_->ClearReader();
		player_->ClearWriter();
	}

	_forall (int, position, 0, remote.GetPlaylistLength())
		playlist.InsertLast(MediaFile(connection, remote.GetPlaylistFile(position)));

	if (remote.IsPlaying())
		state = PLAYING;
	else if (remote.IsPaused())
		state = PAUSED;

	if (!Share::shares.Exists())
		Share::shares.CreateDirectory();

	Share::shares = Share::shares.GetRealPath();
	running = true;
}

Player::~Player()
{
	running = false;

	adder.Join();
	copier.Join();

	if (!player_.IsEmpty())
	{
		remote.Quit();

		player_->Join();
	}
}

void Player::Add(const _R<Share>& share)
{
	ext::ScopeWriteLock<mta::ReaderWriterLock> writeLock(sharesLock);

	shares[share->host][share->share] = share;
}

int Player::Adder()
{
	while (!running)
		Sleep();

	while (running)
	{
		playlistLock.ReadLock();

		/*if (remote.GetPlaylistLength() != playlist.GetSize())
		{
			//

			playlistLock.ReadUnlock();
		}
		else*/
		{
			playlistLock.ReadUnlock();

			Sleep();
		}
	}

	return 0;
}

int Player::Copier() const
{
	while (!running)
		Sleep();

	api::Pcre::RegEx share_("^(.+)/([0-9a-f]+)/(.+)$");

	while (running)
		_synchronized (queueLock) if (!queue.empty())
		{
			api::Path path(queue.front());

			queue.pop();

			_desynchronized (queueLock)
			{
				_assert(path.GetPath().StartsWithAll(Share::shares.GetPath()));

				api::Pcre::RegEx::Match match(share_(path.GetPath().Substring(Share::shares.GetSize())));

				_assert(match);

				{
					api::Path parent(path);
					ext::Stack<api::Path> stack;

					while ((parent = parent.GetParent()) != Share::shares)
						stack.Push(parent);

					while (stack.Pop(parent))
						if (!parent.Exists())
							parent.CreateDirectory();
				}

				ext::ScopeReadLock<mta::ReaderWriterLock> readLock(sharesLock);

				const _R<Share>& share(shares[api::Address::Resolve(match[1], _B("6996")).First()][match[2]]);
			}
		}
		else _desynchronized (queueLock)
			Sleep();

	return 0;
}

void Player::Change()
{
	position = remote.GetPlaylistPosition();
}