// This file is a part of Framsticks GDK library.
// Copyright (C) 2002-2006  Szymon Ulatowski.  See LICENSE.txt for details.
// Refer to http://www.frams.alife.pl/ for further information.

#include "nonstd.h"

#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <errno.h>

#include "genoconv.h"
#include "multimap.h"

///////////////////////////////////////////////////////////////////////////

GenoConvParam::GenoConvParam(GenoConvManager *g):Param(0),gcm(g)
{
updatetab();
}

void GenoConvParam::freetab()
{
if (tab) free(tab);
tab=0;
}

const char *GenoConvParam::id(int i)
{
if (i>=gcm->converters.size()) return 0;
static char t[20];
sprintf(t,"genkonw%d",i);
return t;
}

void GenoConvParam::updatetab()
{
int i;
GenoConverter *gk;
ParamEntry *pe;
int ile=gcm->converters.size();
freetab();
tab=(ParamEntry*)calloc(2+ile,sizeof(ParamEntry));
tab[0].id="Genetics: Conversions";
tab[0].group=1;
tab[0].flags=ile;
tab[0].name="gkparam:";
for (i=0,pe=tab+1;gk=(GenoConverter *)gcm->converters(i);pe++,i++)
	{
	pe->id="?";
	pe->group=0;
	pe->flags=0;
	pe->name=gk->name;
	pe->type="d 0 1";
	pe->help=gk->info;
	}
pe->id=0;
}

GenoConvParam::~GenoConvParam()
{
freetab();
}

void *GenoConvParam::getTarget(int i)
{
GenoConverter *gk=(GenoConverter *)gcm->converters(i);
return &gk->enabled;
}

GenoConvManager::GenoConvManager()
	:param(this)
{
if (!globalobject) globalobject=this;
}

GenoConvManager::~GenoConvManager()
{
GenoConverter *gc;
for (converters.start();gc=(GenoConverter*)converters();) delete gc;
if (globalobject==this) globalobject=0;
}

GenoConvManager *GenoConvManager::globalobject=0;

void GenoConvManager::addConverter(GenoConverter *gc)
{
converters+=gc;
param.updatetab();
}
void GenoConvManager::removeConverter(GenoConverter *gc)
{
converters-=gc;
param.updatetab();
}

/// write path into 'path'
/// return the last path element (return >= path)
/// null -> path not found
/// @param mapavailable will receive 1 if conversion map is supported by all converters in path
/// (can be NULL if you don't need this information)

char *GenoConvManager::getPath(char in,char out,char *path,int maxlen,int *mapavailable)
{
if (!maxlen) return 0;
GenoConverter *gk;
int i=0;
for (;gk=(GenoConverter*)converters(i);i++)
	{
	if ((gk->enabled)&&(gk->in_format == in))
		{
		*path=i;
		if (gk->out_format == out)
			{
			if (mapavailable)
				*mapavailable=gk->mapsupport;
			return path;
			}
		else
			{
			int mapavail;
			char *ret=getPath(gk->out_format,out,path+1,maxlen-1,&mapavail);
			if (ret)
				{
				if (mapavailable)
					*mapavailable=gk->mapsupport && mapavail;
				return ret;
				}
			}
		}
	}
return 0;
}

char *GenoConvManager::getFormatPath(char in,char out,char *path,int maxlen,int *mapavailable)
{
char *ret=getPath(in,out,path,maxlen,mapavailable);
if (ret)
	{
	for (char*t=path;t<=ret;t++)
		*t=((GenoConverter*)converters(*t))->out_format;
	}
return ret;
}

Geno GenoConvManager::convert(Geno &in,char format,MultiMap *map)
{
if (in.getFormat()==format) return in;
static char path[10];
int dep;
char *ret;
if (in.isInvalid()) { return Geno("",0,"","invalid genotype cannot be converted"); }
int mapavail;
for (dep=1;dep<sizeof(path);dep++) // sogenannte iteracyjne poglebianie...
	if (ret=getPath(in.getFormat(),format,path,dep,&mapavail)) break;
if (!ret) { return Geno("",0,"","converter not found"); }
if (!map) mapavail=0;
char *t=path;
SString tmp;
tmp=in.getGene();
MultiMap lastmap,tmpmap;
int firstmap=1;
for (;t<=ret;t++)
	{
	GenoConverter *gk=(GenoConverter*)converters(*t);
	tmp=gk->convert(tmp,mapavail?&tmpmap:0);
	if (!tmp.len())
		{
		char t[100];
		sprintf(t,"f%c->f%c conversion failed (%s)",gk->in_format,gk->out_format,gk->name);
		return Geno(0,0,0,t);
		}
	if (mapavail)
		{
		if (firstmap)
			{
			lastmap=tmpmap;
			firstmap=0;
			}
		else
			{
			MultiMap m;
			m.addCombined(lastmap,tmpmap);
			lastmap=m;
			}
		tmpmap.clear();
		}
	}
if (map)
	*map=lastmap;
return Geno(tmp, format, in.getName(), in.getComment());
}

Geno GenoConvManager::globalConvert(Geno &in,char format,MultiMap *map)
{
if (globalobject) return globalobject->convert(in,format,map);
if (format==in.getFormat()) return in;
return Geno(0,0,0,"GenConvManager not initialized");
}

/////////////////////////////////