#include "global.h"
/*
	Loader for lyrics files
	By: Kevin Slaughter
*/
#include "RageLog.h"
#include "RageException.h"
#include "RageUtil.h"
#include "LyricsLoader.h"
#include "Regex.h"

#include <fstream>
#include <map>
using namespace std;

static int CompareLyricSegments(const LyricSegment &seg1, const LyricSegment &seg2)
{
   return seg1.m_fStartTime < seg2.m_fStartTime;
}

bool LyricsLoader::LoadFromLRCFile( CString sPath, Song &out )
{
	LOG->Trace( "LyricsLoader::LoadFromLRCFile(%s)", sPath.GetString() );
	
	ifstream input(sPath);
	if(input.bad())
	{
		LOG->Warn( "Error opening file '%s' for reading.", sPath.GetString() );
		return false;
	}

	string line;

	RageColor CurrentColor(0,1,0,1);

	out.m_LyricSegments.clear();

	while(input.good() && getline(input, line))
	{
		if(!line.compare(0, 2, "//"))
			continue;

		/* "[data1] data2".  Ignore whitespace at the beginning of the line. */
		static Regex x("^ *\\[([^]]+)\\] *(.*)$");

		vector<CString> matches;
		if(!x.Compare(line, matches))
			continue;
		
		CString &sValueName = matches[0];
		CString &sValueData = matches[1];
		StripCrnl(sValueData);

		// handle the data
		if( 0==stricmp(sValueName,"COLOUR") || 0==stricmp(sValueName,"COLOR") )
		{
			// set color var here for this segment
			int r, g, b;
			int result = sscanf( sValueData.GetString(), "0x%2x%2x%2x", &r, &g, &b );
			if(result != 3)
			{
				LOG->Trace( "The color value '%s' in '%s' is invalid.",
					sValueData.GetString(), sPath.GetString() );
				continue;
			}

			CurrentColor = RageColor(r / 256.0f, g / 256.0f, b / 256.0f, 1);
			continue;
		}

		{
			/* If we've gotten this far, and no other statement caught
			 * this value before this does, assume it's a time value. */		
			
			LyricSegment seg;
			seg.m_Color = CurrentColor;
			seg.m_fStartTime = TimeToSeconds(sValueName);
			seg.m_sLyric = sValueData;
			
			/* Er, huh?  This won't do anything (replace \ with \). What's wrong
			 * with using \ in lyrics? */
			seg.m_sLyric.Replace( "\\", "\\" ); // to avoid possible screw-ups 
							    						// if someone uses a \ for whatever
												        // reason in their lyrics -- Miryokuteki
			
			seg.m_sLyric.Replace( "|","\n" ); // Pipe symbols denote a new line in LRC files
			out.AddLyricSegment( seg );
		}
		
	}

	sort( out.m_LyricSegments.begin(), out.m_LyricSegments.end(), CompareLyricSegments );

	return true;
}

/*
-----------------------------------------------------------------------------
 Copyright (c) 2003 by the person(s) listed below.  All rights reserved.
	Kevin Slaughter
	Glenn Maynard
-----------------------------------------------------------------------------
*/