/*
	Traitement incrémental
*/
#include <stdlib.h>
#include <tool.h>
#include "proto.h"

extern int   protof_nbfile;
extern PROTOF_INFO protof_tb[];
static int protof_increm=0;

/*
	Enregistre demande de traitement incrémental
*/

void protof_setincrem (void)
{
	if (!protof_increm && protof_nbfile>0){
		erreur_signal (
			"Option -i avant l'option -f : sans effet\n"
			,"Option -i must precede -f : ignored\n");
	}else{
		protof_increm = 1;
	}
}
/*
	Prépare incrementation pour un fichier
*/
void protof_loadfile (PROTOF_INFO *inf, const char *nomf, int mode)
{
	if (protof_increm){
		int ok;
		if (mode & MODE_COMMENT){
			ok = filep_readnap (&inf->txttb,nomf);
		}else if (mode & MODE_INDEX){
			ok = filep_readnar (&inf->txttb,nomf);
		}else{
			ok = filep_readp (&inf->txttb,nomf);
		}
		if (ok==-1){
			erreur_signal (
				"Mode incrémental : Ne peut relire %s\nAbandon du mode\n"
				,"Incremental mode : Can't read %s\nAbort incremental mode\n"
				,nomf);
			protof_increm=0;
		}
	}		
}

/*
	essai de faire le traitement incrémental dépendant de la date
	du fichier
	Retourne 0 si ok, -1 sinon
*/	

int protof_doincrem (const char *nomf, unsigned long date)
{
	int ok = -1;
	if (protof_increm){
		int i;
		PROTOF_INFO *inf = protof_tb;
		int tbidx[10];
		ok = 0;
		for (i=0; i<protof_nbfile; i++,inf++){
			unsigned long pdate;
			tbidx[i] = filep_locate (&inf->txttb,nomf,&pdate);
			if (pdate != date){
				ok = -1;
				break;
			}
		}
		if (ok == 0){
			inf = protof_tb;
			for (i=0; i<protof_nbfile; i++,inf++){
				filep_write (inf->fout,&inf->txttb,tbidx[i]);
			}
		}
	}
	return ok;
}

/*
	Libère espace associé au mécanisme incrémental
*/
void protof_free (PROTOF_INFO *inf)
{
	free (inf->txttb.buf);
	free (inf->txttb.tb);
}