/*
   Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   For a list of contributors, see the accompanying CONTRIBUTORS file.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

// PlugInManager.cpp: implementation of the CPlugInManager class.
//
//////////////////////////////////////////////////////////////////////

#include "pluginmanager.h"

#include "modulesystem.h"
#include "qerplugin.h"
#include "iplugin.h"

#include "math/vector.h"
#include "string/string.h"

#include "error.h"
#include "select.h"
#include "plugin.h"

#include "modulesystem.h"

#include <list>

/* plugin manager --------------------------------------- */
class CPluginSlot : public IPlugIn
{
CopiedString m_menu_name;
const _QERPluginTable *mpTable;
std::list<CopiedString> m_CommandStrings;
std::list<CopiedString> m_CommandTitleStrings;
std::list<std::size_t> m_CommandIDs;

public:
/*!
   build directly from a SYN_PROVIDE interface
 */
CPluginSlot( GtkWidget* main_window, const char* name, const _QERPluginTable& table );
/*!
   dispatching a command by name to the plugin
 */
void Dispatch( const char *p );

// IPlugIn ------------------------------------------------------------
const char* getMenuName();
std::size_t getCommandCount();
const char* getCommand( std::size_t n );
const char* getCommandTitle( std::size_t n );
void addMenuID( std::size_t n );
bool ownsCommandID( std::size_t n );

};

CPluginSlot::CPluginSlot( GtkWidget* main_window, const char* name, const _QERPluginTable& table ){
	mpTable = &table;
	m_menu_name = name;

	const char* commands = mpTable->m_pfnQERPlug_GetCommandList();
	const char* titles = mpTable->m_pfnQERPlug_GetCommandTitleList();

	StringTokeniser commandTokeniser( commands, ",;" );
	StringTokeniser titleTokeniser( titles, ",;" );

	const char* cmdToken = commandTokeniser.getToken();
	const char *titleToken = titleTokeniser.getToken();
	while ( !string_empty( cmdToken ) )
	{
		if ( string_empty( titleToken ) ) {
			m_CommandStrings.push_back( cmdToken );
			m_CommandTitleStrings.push_back( cmdToken );
			cmdToken = commandTokeniser.getToken();
			titleToken = "";
		}
		else
		{
			m_CommandStrings.push_back( cmdToken );
			m_CommandTitleStrings.push_back( titleToken );
			cmdToken = commandTokeniser.getToken();
			titleToken = titleTokeniser.getToken();
		}
	}
	mpTable->m_pfnQERPlug_Init( 0, (void*)main_window );
}

const char* CPluginSlot::getMenuName(){
	return m_menu_name.c_str();
}

std::size_t CPluginSlot::getCommandCount(){
	return m_CommandStrings.size();
}

const char* CPluginSlot::getCommand( std::size_t n ){
	std::list<CopiedString>::iterator i = m_CommandStrings.begin();
	while ( n-- != 0 )
		++i;
	return ( *i ).c_str();
}

const char* CPluginSlot::getCommandTitle( std::size_t n ){
	std::list<CopiedString>::iterator i = m_CommandTitleStrings.begin();
	while ( n-- != 0 )
		++i;
	return ( *i ).c_str();
}

void CPluginSlot::addMenuID( std::size_t n ){
	m_CommandIDs.push_back( n );
}

bool CPluginSlot::ownsCommandID( std::size_t n ){
	for ( std::list<std::size_t>::iterator i = m_CommandIDs.begin(); i != m_CommandIDs.end(); ++i )
	{
		if ( *i == n ) {
			return true;
		}
	}
	return false;
}

void CPluginSlot::Dispatch( const char *p ){
	Vector3 vMin, vMax;
	Select_GetBounds( vMin, vMax );
	mpTable->m_pfnQERPlug_Dispatch( p, reinterpret_cast<float*>( &vMin ), reinterpret_cast<float*>( &vMax ), true ); //QE_SingleBrush(true));
}


class CPluginSlots
{
std::list<CPluginSlot *> mSlots;
public:
virtual ~CPluginSlots();

void AddPluginSlot( GtkWidget* main_window, const char* name, const _QERPluginTable& table ){
	mSlots.push_back( new CPluginSlot( main_window, name, table ) );
}

void PopulateMenu( PluginsVisitor& menu );
bool Dispatch( std::size_t n, const char* p );
};

CPluginSlots::~CPluginSlots(){
	std::list<CPluginSlot *>::iterator iSlot;
	for ( iSlot = mSlots.begin(); iSlot != mSlots.end(); ++iSlot )
	{
		delete *iSlot;
		*iSlot = 0;
	}
}

void CPluginSlots::PopulateMenu( PluginsVisitor& menu ){
	std::list<CPluginSlot *>::iterator iPlug;
	for ( iPlug = mSlots.begin(); iPlug != mSlots.end(); ++iPlug )
	{
		menu.visit( *( *iPlug ) );
	}
}

bool CPluginSlots::Dispatch( std::size_t n, const char* p ){
	std::list<CPluginSlot *>::iterator iPlug;
	for ( iPlug = mSlots.begin(); iPlug != mSlots.end(); ++iPlug )
	{
		CPluginSlot *pPlug = *iPlug;
		if ( pPlug->ownsCommandID( n ) ) {
			pPlug->Dispatch( p );
			return true;
		}
	}
	return false;
}

CPluginSlots g_plugin_slots;


void FillPluginSlots( CPluginSlots& slots, GtkWidget* main_window ){
	class AddPluginVisitor : public PluginModules::Visitor
	{
	CPluginSlots& m_slots;
	GtkWidget* m_main_window;
public:
	AddPluginVisitor( CPluginSlots& slots, GtkWidget* main_window )
		: m_slots( slots ), m_main_window( main_window ){
	}
	void visit( const char* name, const _QERPluginTable& table ) const {
		m_slots.AddPluginSlot( m_main_window, name, table );
	}
	} visitor( slots, main_window );

	Radiant_getPluginModules().foreachModule( visitor );
}


#include "pluginmanager.h"

CPlugInManager g_PlugInMgr;

CPlugInManager& GetPlugInMgr(){
	return g_PlugInMgr;
}

void CPlugInManager::Dispatch( std::size_t n, const char * p ){
	g_plugin_slots.Dispatch( n, p );
}

void CPlugInManager::Init( GtkWidget* main_window ){
	FillPluginSlots( g_plugin_slots, main_window );
}

void CPlugInManager::constructMenu( PluginsVisitor& menu ){
	g_plugin_slots.PopulateMenu( menu );
}

void CPlugInManager::Shutdown(){
}