/*

  Copyright (C) 2003  Razvan Cojocaru <razvanco@gmx.net>
  XML-RPC/Context ID code contributed by Eamon Millman / PCI Geomatics
  <millman@pcigeomatics.com>
 
  This program 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.
  
  This program 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 this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/


#include <chmapp.h>
#include <chmframe.h>
#include <chmfshandler.h>
#include <wx/fs_inet.h>
#include <chmfile.h>
#include <wx/image.h>
#include <wx/config.h>
#include <wx/filefn.h>
#include <wx/fs_mem.h>


#ifdef WITH_LIBXMLRPC

using namespace XmlRpc;


// The better way to use a singleton. Can't rely on the order of
// construction/initialization of global objects.
XmlRpcServer& getXmlRpcServer()
{
	static XmlRpcServer s;
	return s;
}


CHMApp::CHMApp() 
	: wxApp(), XmlRpcServerMethod( "xCHM", &getXmlRpcServer())
{}


void CHMApp::execute(XmlRpcValue& params, XmlRpcValue& result)
{
	result = FALSE;
	if( params.size() > 0 && params[0].getType() == XmlRpcValue::TypeInt )
	{
		switch( int(params[0]) )
		{
		case 0: // we want to close everything up!
			//_frame->Command(ID_Quit);
			ExitMainLoop();
			result = TRUE;
			break;
		case 1:
			if( params.size() == 2 && 
			    params[1].getType() == XmlRpcValue::TypeString )
			{
				result = _frame->LoadCHM( 
				  CURRENT_CHAR_STRING(
					std::string(params[1]).c_str()));
			}
			if( params.size() == 3 && 
			    params[1].getType() == XmlRpcValue::TypeString && 
			    params[2].getType() == XmlRpcValue::TypeInt )
			{
				result = _frame->LoadCHM( 
				  CURRENT_CHAR_STRING(
					std::string(params[1]).c_str())) &&
				   _frame->LoadContextID( int(params[2]) );
			}
			break;
		case 2:
			if( params.size() == 2 && 
			    params[1].getType() == XmlRpcValue::TypeInt )
			{
				result = 
				    _frame->LoadContextID( int(params[1]) );
			}
			break;
		}
	}
}
#endif


bool CHMApp::OnInit()
{

#ifdef WITH_LIBXMLRPC
	long port = -1;
#endif
	long id = -1;
	wxString file;

	_cmdLP.SetCmdLine( argc, argv );

	_cmdLP.AddParam( wxT("file"), wxCMD_LINE_VAL_STRING, 
			 wxCMD_LINE_PARAM_OPTIONAL );
	
	_cmdLP.AddOption( wxT("c"), wxT("contextid"), 
			  wxT("context-Id to open in file, requires that a file be specified"), 
			  wxCMD_LINE_VAL_NUMBER );
#ifdef WITH_LIBXMLRPC
	_cmdLP.AddOption( wxT("x"), wxT("xmlrpc"), 
			  wxT("starts xCHM in XML-RPC server mode listening on port <num>"), 
			  wxCMD_LINE_VAL_NUMBER );
#endif
	_cmdLP.AddSwitch( wxT("h"), wxT("help"), 
			  wxT("displays this message."), 
			  wxCMD_LINE_OPTION_HELP );

	if( _cmdLP.Parse() != 0 ) // 0 means everything is ok
	{
		return FALSE;
	}
#ifdef WITH_LIBXMLRPC
	// catch the xmlrpc setup if desired
	_cmdLP.Found( wxT("xmlrpc"), &port );
#endif
	if( _cmdLP.GetParamCount() == 1 ) 
	// catch the optional file to load
	{
		file = _cmdLP.GetParam(0);
		_cmdLP.Found( wxT("contextid"), &id );
	}
	else if( _cmdLP.Found( wxT("contextid") ) ) 
	// can't use a context-ID without a file!
	{
		_cmdLP.Usage();
		return FALSE;
	}


	long xorig = 50, yorig = 50, width = 600, height = 450;
	long sashPos = CONTENTS_MARGIN;
	long fontSize = CHM_DEFAULT_FONT_SIZE;
	wxString lastOpenedDir, normalFont, fixedFont;

#ifndef __WXMAC__
	_loc.Init();
	_loc.AddCatalog(wxT("xchm"));
#endif

	wxInitAllImageHandlers();
	wxFileSystem::AddHandler(new CHMFSHandler);
	wxFileSystem::AddHandler(new wxInternetFSHandler);
	wxFileSystem::AddHandler(new wxMemoryFSHandler);

	wxConfig config(wxT("xchm"));
	if(config.Read(wxT("/Position/xOrig"), &xorig)) {
		config.Read(wxT("/Position/yOrig"), &yorig);
		config.Read(wxT("/Position/width"), &width);
		config.Read(wxT("/Position/height"), &height);
		config.Read(wxT("/Paths/lastOpenedDir"), 
			    &lastOpenedDir);
		config.Read(wxT("/Fonts/normalFontFace"), 
			    &normalFont);
		config.Read(wxT("/Fonts/fixedFontFace"), &fixedFont);
		config.Read(wxT("/Fonts/size"), &fontSize);
		config.Read(wxT("/Sash/leftMargin"), &sashPos);
	}

	wxString fullAppPath;

	if(argv > 0)
		fullAppPath = getAppPath(argv[0], wxGetCwd());

	_frame = new CHMFrame(wxT("xCHM v. " VERSION),
				       lastOpenedDir, wxPoint(xorig, yorig), 
				       wxSize(width, height), normalFont,
				       fixedFont, static_cast<int>(fontSize),
				       static_cast<int>(sashPos), fullAppPath);

	_frame->SetSizeHints(200, 200);
	_frame->Show(TRUE);
	SetTopWindow(_frame);


#ifdef WITH_LIBXMLRPC
	if( port != -1 )
	{
		// do the XML RPC init stuff here
		_timer.SetOwner( this, TIMER_ID );
		_timer.Start(100);
		getXmlRpcServer().bindAndListen(port);
	}
#endif
	if( _cmdLP.GetParamCount() == 1 )
	{
		_frame->LoadCHM( file );

		if( id != -1 )
			_frame->LoadContextID( id );
	}


	return TRUE;
}


wxString CHMApp::getAppPath(const wxString& argv0, const wxString& cwd)
{
	if(wxIsAbsolutePath(argv0))
		return argv0;

	wxString cwdtmp(cwd), apppath;

	if(cwdtmp.Last() != wxFILE_SEP_PATH)
		cwdtmp += wxFILE_SEP_PATH;

	apppath = cwdtmp + apppath;

	if(wxFileExists(apppath))
		return apppath;

	wxPathList pathList;
	pathList.AddEnvList(wxT("PATH"));
	apppath = pathList.FindAbsoluteValidPath(argv0);
	
	if(!apppath.IsEmpty())
		return wxPathOnly(apppath);

	return wxEmptyString;
}


#ifdef __WXMAC__
void CHMApp::MacOpenFile(const wxString& filename)
{
	_frame->LoadCHM(filename);
}
#endif


#ifdef WITH_LIBXMLRPC
void CHMApp::WatchForXMLRPC( wxTimerEvent& )
{
	getXmlRpcServer().work(0.0); // check for a XMLRPC message
}
#endif

#ifdef WITH_LIBXMLRPC
BEGIN_EVENT_TABLE( CHMApp, wxApp )
	EVT_TIMER(TIMER_ID, CHMApp::WatchForXMLRPC )
END_EVENT_TABLE()
#endif

// Apparently this macro gets main() pumping.
IMPLEMENT_APP(CHMApp)


/*
  Local Variables:
  mode: c++
  c-basic-offset: 8
  tab-width: 8
  c-indent-comments-syntactically-p: t
  c-tab-always-indent: t
  indent-tabs-mode: t
  End:
*/

// vim:shiftwidth=8:autoindent:tabstop=8:noexpandtab:softtabstop=8