#include <guitar/Fingering.hpp>
#include <guitar/GlobalDefs.hpp>

FrettedNotes Fingering::getFingering(const Scale &scale)
{
  FrettedNotes frettedNotes;
	FrettedNote frettedNote;

  frettedNotes.size(scale.size());
  GlobalDefs::outDebug(scale.toString());
  for(int index=0;index<scale.size();index++)
	{
	  if(!index)getFirst(frettedNote,((Scale&)scale)[index]);
		else getNext(frettedNote,frettedNotes[index-1],((Scale&)scale)[index]);
		frettedNotes[index]=frettedNote;
	}
  return frettedNotes;
}

bool Fingering::getFirst(FrettedNote &frettedNote,const Note &note)
{
  Note tmpNote;
	bool found;

  found=false;
	mCurrString=0;
	mCurrFret=0;
  GlobalDefs::outDebug(String("[Fingering::getFirst] Looking for ")+note.toString());
  while(!found)
	{
	  tmpNote=mFretboard.getAt(mCurrString,mCurrFret);
		GlobalDefs::outDebug(String("[Fingering::getFirst] Str:")+String().fromInt(mCurrString)+String(" Fret:")+String().fromInt(mCurrFret)+String(" ")+tmpNote.toString());
		if(tmpNote==note)
		{
		  frettedNote.setString(mCurrString);
			frettedNote.setFret(mCurrFret);
			frettedNote.setNote(tmpNote);
			mAnchorFret=mCurrFret;
		  found=true;
		}
		if(mCurrFret>Fretboard::Frets)
		{
		  mCurrString++;
			mCurrFret=0;
			if(mCurrString<0)return false;
		}
		mCurrFret++;
	}
  return found;
}

bool Fingering::getNext(FrettedNote &frettedNote,const FrettedNote &prevFrettedNote,const Note &note)
{
  Note tmpNote;
	bool found;

  found=false;
  GlobalDefs::outDebug(String("[Fingering::getNext] Looking for ")+note.toString());
	if(mCurrFret<0||mCurrString>5)return false;
  while(!found)
	{
	  tmpNote=mFretboard.getAt(mCurrString,mCurrFret);
 		GlobalDefs::outDebug(String("[Fingering::getNext] Str:")+String().fromInt(mCurrString)+String(" Fret:")+String().fromInt(mCurrFret)+String(" ")+tmpNote.toString());
		if(tmpNote==note)
		{
		  frettedNote.setString(mCurrString);
			frettedNote.setFret(mCurrFret);
			frettedNote.setNote(tmpNote);
		  found=true;
		}
		if((mCurrFret-mAnchorFret)+1>mMaxStretchFrets)
		{
		  mCurrFret=mAnchorFret-2;
			mCurrString++;
//			mAnchorFret=mCurrFret;
			if(mCurrString>5)return false;
			if(mCurrFret<0)mCurrFret=0;
		}
		if(mCurrFret>Fretboard::Frets)
		{
		  mCurrString++;
			mCurrFret=0;
			if(mCurrString>5)return false;
		}
		mCurrFret++;
	}
  return found;
}