#include "stdinc.h"
#include "newhash.h"
#include "extfunc.h"
#include "extvab.h"

#define CNBLOCKSIZE 100000

void createCntMemManager()
{
  if(!cn_mem_manager)
    cn_mem_manager = createMem_manager(CNBLOCKSIZE, sizeof(CONNECT));

  //else
  //printf("cn_mem_manger was created\n");
}

void destroyConnectMem()
{
  freeMem_manager(cn_mem_manager);
  cn_mem_manager = NULL;
}

CONNECT *allocateCN(unsigned int contigId, int gap)
{
  CONNECT *newCN;
  newCN = (CONNECT *)getItem(cn_mem_manager);
  newCN->contigID = contigId;
  newCN->gapLen = gap;

  newCN->minGap = 0;
  newCN->maxGap = 0;
  newCN->bySmall = 0;
  newCN->weakPoint = 0;

  newCN->weight = 1;
  newCN->weightNotInherit = 0;
  newCN->mask = 0;
  newCN->used = 0;
  newCN->checking = 0;
  newCN->deleted = 0;
  newCN->prevInScaf = 0;
  newCN->inherit = 0;
  newCN->singleInScaf = 0;
  newCN->nextInScaf = NULL;
  newCN->PE = NULL; //(int *)ckalloc(CNBLOCKSIZE*sizeof(int));

  return newCN;
}

void output_cntGVZ(char *outfile)
{
  char name[256];
  FILE *fp;
  unsigned int i;
  CONNECT *connect;
  boolean flag;

  sprintf(name, "%s.scaffold.gvz", outfile);
  fp = ckopen(name, "w");
  fprintf(fp, "digraph G{\n");
  fprintf(fp, "\tsize=\"512,512\";\n");

  for(i = num_ctg; i > 0; i--)
    {
      //if(contig_array[i].mask||!contig_array[i].downwardConnect)
      if(!contig_array[i].downwardConnect)
        continue;

      connect = contig_array[i].downwardConnect;

      while(connect)
        {
          //if(connect->mask||connect->deleted){
          if(connect->deleted)
            {
              connect = connect->next;
              continue;
            }

          if(connect->prevInScaf || connect->nextInScaf)
            flag = 1;
          else
            flag = 0;

          if(!connect->mask)
            fprintf(fp, "\tC%d_%d -> C%d_%d [label = \"%d(%d_%d)\"];\n"
                    , i, contig_array[i].length, connect->contigID, contig_array[connect->contigID].length,
                    connect->gapLen, flag, connect->weight);
          else
            fprintf(fp, "\tC%d_%d -> C%d_%d [label = \"%d(%d_%d)\", color = red];\n"
                    , i, contig_array[i].length, connect->contigID, contig_array[connect->contigID].length,
                    connect->gapLen, flag, connect->weight);

          connect = connect->next;
        }
    }

  fprintf(fp, "}\n");
  fclose(fp);
}

/***************** below this line all codes are about lookup table *****************/

void createCntLookupTable()
{
  if(!cntLookupTable)
    cntLookupTable = (CONNECT **)ckalloc((3 * num_ctg + 1) * sizeof(CONNECT *));
}

void deleteCntLookupTable()
{
  if(cntLookupTable)
    {
      free((void *)cntLookupTable);
      cntLookupTable = NULL;
    }
}

void putCnt2LookupTable(unsigned int from_c, CONNECT *cnt)
{
  if(!cnt || !cntLookupTable)
    return;

  unsigned int index = 2 * from_c + cnt->contigID;
  cnt->nextInLookupTable = cntLookupTable[index];
  cntLookupTable[index] = cnt;
}

static CONNECT *getCntInLookupTable(unsigned int from_c, unsigned int to_c)
{
  unsigned int index = 2 * from_c + to_c;
  CONNECT *ite_cnt = cntLookupTable[index];

  while(ite_cnt)
    {
      if(ite_cnt->contigID == to_c)
        return ite_cnt;

      ite_cnt = ite_cnt->nextInLookupTable;
    }

  return NULL;
}

CONNECT *getCntBetween(unsigned int from_c, unsigned int to_c)
{
  CONNECT *pcnt;

  if(cntLookupTable)
    {
      pcnt = getCntInLookupTable(from_c, to_c);
      return pcnt;
    }

  pcnt = contig_array[from_c].downwardConnect;

  while(pcnt)
    {
      if(pcnt->contigID == to_c)
        return pcnt;

      pcnt = pcnt->next;
    }

  return pcnt;
}
/*
void removeCntInLookupTable(unsigned int from_c,unsigned int to_c)
{
	unsigned int index = 2*from_c + to_c;
	CONNECT *ite_cnt = cntLookupTable[index];
	CONNECT *cnt;

	if(!ite_cnt){
		printf("removeCntInLookupTable: not found A\n");
		return;
	}
	if(ite_cnt->contigID==to_c){
		cntLookupTable[index] = ite_cnt->nextInLookupTable;
		return;
	}

	while(ite_cnt->nextInLookupTable&&ite_cnt->nextInLookupTable->contigID!=to_c)
		ite_cnt = ite_cnt->nextInLookupTable;

	if(ite_cnt->nextInLookupTable){
		cnt = ite_cnt->nextInLookupTable;
		ite_cnt->nextInLookupTable = cnt->nextInLookupTable;
		return;
	}
	printf("removeCntInLookupTable: not found B\n");
	return;
}
*/