#include "global.h"
#include "ScreenSelect.h"
#include "ScreenManager.h"
#include "GameSoundManager.h"
#include "RageLog.h"
#include "AnnouncerManager.h"
#include "GameState.h"
#include "ThemeManager.h"
#include "GameCommand.h"
#include "InputEventPlus.h"

#define CHOICE_NAMES		THEME->GetMetric (m_sName,"ChoiceNames")
#define CHOICE( s )		THEME->GetMetric (m_sName,ssprintf("Choice%s",s.c_str()))
#define IDLE_TIMEOUT_SCREEN	THEME->GetMetric (m_sName,"IdleTimeoutScreen")
#define UPDATE_ON_MESSAGE	THEME->GetMetric (m_sName,"UpdateOnMessage")

void ScreenSelect::Init()
{
	IDLE_COMMENT_SECONDS.Load( m_sName, "IdleCommentSeconds" );
	IDLE_TIMEOUT_SECONDS.Load( m_sName, "IdleTimeoutSeconds" );
	ALLOW_DISABLED_PLAYER_INPUT.Load( m_sName, "AllowDisabledPlayerInput" );

	ScreenWithMenuElements::Init();

	// Load messages to update on
	split( UPDATE_ON_MESSAGE, ",", m_asSubscribedMessages );
	for( unsigned i = 0; i < m_asSubscribedMessages.size(); ++i )
		MESSAGEMAN->Subscribe( this, m_asSubscribedMessages[i] );
	// Subscribe to PlayerJoined, if not already.
	if( !MESSAGEMAN->IsSubscribedToMessage(this, Message_PlayerJoined) )
		this->SubscribeToMessage( Message_PlayerJoined );

	// Load choices
	{
		// Instead of using NUM_CHOICES, use a comma-separated list of choices.
		// Each element in the list is a choice name. This level of indirection 
		// makes it easier to add or remove items without having to change a
		// bunch of indices.
		vector<RString> asChoiceNames;
		split( CHOICE_NAMES, ",", asChoiceNames, true );

		for( unsigned c=0; c<asChoiceNames.size(); c++ )
		{
			RString sChoiceName = asChoiceNames[c];

			GameCommand mc;
			mc.ApplyCommitsScreens( false );
			mc.m_sName = sChoiceName;
			Commands cmd = ParseCommands( CHOICE(sChoiceName) );
			mc.Load( c, cmd );
			m_aGameCommands.push_back( mc );
		}
	}

	if( !m_aGameCommands.size() )
		RageException::Throw( "Screen \"%s\" does not set any choices.", m_sName.c_str() );
}

void ScreenSelect::BeginScreen()
{
	ScreenWithMenuElements::BeginScreen();

	m_timerIdleComment.GetDeltaTime();
	m_timerIdleTimeout.GetDeltaTime();
}


ScreenSelect::~ScreenSelect()
{
	LOG->Trace( "ScreenSelect::~ScreenSelect()" );
	for( unsigned i = 0; i < m_asSubscribedMessages.size(); ++i )
		MESSAGEMAN->Unsubscribe( this, m_asSubscribedMessages[i] );
}

void ScreenSelect::Update( float fDelta )
{
	if( !IsTransitioning() )
	{
		if( IDLE_COMMENT_SECONDS > 0  &&  m_timerIdleComment.PeekDeltaTime() >= IDLE_COMMENT_SECONDS )
		{
			SOUND->PlayOnceFromAnnouncer( m_sName+" IdleComment" );
			m_timerIdleComment.GetDeltaTime();
		}

		if( IDLE_TIMEOUT_SECONDS > 0  &&  m_timerIdleTimeout.PeekDeltaTime() >= IDLE_TIMEOUT_SECONDS )
		{
			SCREENMAN->SetNewScreen( IDLE_TIMEOUT_SCREEN );
			m_timerIdleTimeout.GetDeltaTime();
			return;
		}
	}

	ScreenWithMenuElements::Update( fDelta );
}

void ScreenSelect::Input( const InputEventPlus &input )
{
//	LOG->Trace( "ScreenSelect::Input()" );

	/* Reset the announcer timers when a key is pressed. */
	m_timerIdleComment.GetDeltaTime();
	m_timerIdleTimeout.GetDeltaTime();

	/* Choices may change when more coins are inserted. */
	if( input.MenuI == GAME_BUTTON_COIN && input.type == IET_FIRST_PRESS )
		this->UpdateSelectableChoices();

	if( input.MenuI == GAME_BUTTON_START && input.type == IET_FIRST_PRESS && GAMESTATE->JoinInput(input.pn) )
	{
		// HACK: Only play start sound for the 2nd player who joins. The 
		// start sound for the 1st player will be played by ScreenTitleMenu 
		// when the player makes a selection on the screen.
		if( GAMESTATE->GetNumSidesJoined() > 1 )
			SCREENMAN->PlayStartSound();

		if( !ALLOW_DISABLED_PLAYER_INPUT )
			return;	// don't let the screen handle the MENU_START press
	}

	if( !GAMESTATE->IsPlayerEnabled(input.pn) )
	{
		// block input of disabled players
		if( !ALLOW_DISABLED_PLAYER_INPUT )
			return;

		/* Never allow a START press by a player that's still not joined, even if
		 * ALLOW_DISABLED_PLAYER_INPUT would allow other types of input. If we
		 * let a non-joined player start, we might start the game with no
		 * players joined (eg. if ScreenTitleJoin is started in pay with no
		 * credits). */
		if( input.MenuI == GAME_BUTTON_START )
			return;
	}

	ScreenWithMenuElements::Input( input ); // default input handler
}

void ScreenSelect::HandleScreenMessage( const ScreenMessage SM )
{
	if( SM == SM_BeginFadingOut )	// Screen is starting to tween out.
	{
		/* Don't call GameCommand::Apply once per player on screens that 
		 * have a shared selection. This can cause change messages to be
		 * broadcast multiple times. Detect whether all players have the
		 * same choice, and  if so, call ApplyToAll instead.
		 * TODO: Think of a better way to handle this.
		 */
		ASSERT( GAMESTATE->m_MasterPlayerNumber != PlayerNumber_Invalid );
		int iMastersIndex = this->GetSelectionIndex( GAMESTATE->m_MasterPlayerNumber );
		bool bAllPlayersChoseTheSame = true;
		FOREACH_HumanPlayer( p )
		{
			if( this->GetSelectionIndex(p) != iMastersIndex )
			{
				bAllPlayersChoseTheSame = false;
				break;
			}
		}

		if( bAllPlayersChoseTheSame )
		{
			const GameCommand &gc = m_aGameCommands[iMastersIndex];
			m_sNextScreen = gc.m_sScreen;
			if( !gc.m_bInvalid )
				gc.ApplyToAllPlayers();
		}
		else
		{
			FOREACH_HumanPlayer( p )
			{
				int iIndex = this->GetSelectionIndex(p);
				const GameCommand &gc = m_aGameCommands[iIndex];
				m_sNextScreen = gc.m_sScreen;
				if( !gc.m_bInvalid )
					gc.Apply( p );
			}
		}

		StopTimer();

		SCREENMAN->RefreshCreditsMessages();

		ASSERT( !IsTransitioning() );
		StartTransitioningScreen( SM_GoToNextScreen );
	}

	ScreenWithMenuElements::HandleScreenMessage( SM );
}

void ScreenSelect::HandleMessage( const Message &msg )
{
	if( find(m_asSubscribedMessages.begin(), m_asSubscribedMessages.end(), msg.GetName()) != m_asSubscribedMessages.end() )
		this->UpdateSelectableChoices();

	ScreenWithMenuElements::HandleMessage( msg );
}

void ScreenSelect::MenuBack( const InputEventPlus &input )
{
	Cancel( SM_GoToPrevScreen );
}

/*
 * (c) 2001-2004 Chris Danford
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, and/or sell copies of the Software, and to permit persons to
 * whom the Software is furnished to do so, provided that the above
 * copyright notice(s) and this permission notice appear in all copies of
 * the Software and that both the above copyright notice(s) and this
 * permission notice appear in supporting documentation.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
 * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
 * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
 * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

