/* -------------------------------------------------------------------------
 * pg_dumplo
 *
 * $Header: /cvsroot/pgsql/contrib/pg_dumplo/Attic/lo_import.c,v 1.3 2001/01/24 19:42:45 momjian Exp $
 *
 *					Karel Zak 1999-2000
 * -------------------------------------------------------------------------
 */

#include <stdio.h>	
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>                            
#include <time.h>

#include <libpq-fe.h>
#include <libpq/libpq-fs.h>

#include "pg_dumplo.h"

extern int 	errno;        

void 
pglo_import(LODumpMaster *pgLO)
{
	LOlist		loa;
	Oid 		new_oid;
	char		tab[MAX_TABLE_NAME], attr[MAX_ATTR_NAME],
			path[BUFSIZ], lo_path[BUFSIZ],
			Qbuff[QUERY_BUFSIZ];
	
	while(fgets(Qbuff, QUERY_BUFSIZ, pgLO->index)) {
		
		if (*Qbuff == '#')
			continue;

		if (! pgLO->remove && ! pgLO->quiet)
			printf(Qbuff);
		
		sscanf(Qbuff, "%u\t%s\t%s\t%s\n", &loa.lo_oid, tab, attr, path); 
		loa.lo_table = tab;
		loa.lo_attr  = attr;

		sprintf(lo_path, "%s/%s", pgLO->space, path); 

		/* ----------
		 * Import LO
		 * ----------
		 */
		if ((new_oid = lo_import(pgLO->conn, lo_path)) == 0) {
		
			fprintf(stderr, "%s: %s\n", progname, PQerrorMessage(pgLO->conn));
			
			PQexec(pgLO->conn, "ROLLBACK");
			fprintf(stderr, "\n%s: ROLLBACK\n", progname);
			exit(RE_ERROR);
		}

		if (pgLO->remove) {
			notice(pgLO, FALSE);
			if (lo_unlink(pgLO->conn, loa.lo_oid) < 0) 
				fprintf(stderr, "%s: can't remove LO %u:\n%s", 
					progname, loa.lo_oid, PQerrorMessage(pgLO->conn));
					
			else if (!pgLO->quiet)
				printf("remove old %u and create new %u\n", 
					loa.lo_oid, new_oid);	
			notice(pgLO, TRUE);	
		}
		
		pgLO->counter++;
	
		/* ----------
		 * UPDATE oid in tab
		 * ----------
		 */
		sprintf(Qbuff, "UPDATE \"%s\" SET \"%s\"=%u WHERE \"%s\"=%u", 
			loa.lo_table, loa.lo_attr, new_oid, loa.lo_attr, loa.lo_oid);

		/*fprintf(stderr, Qbuff);*/
			
		pgLO->res = PQexec(pgLO->conn, Qbuff);
	
		if (PQresultStatus(pgLO->res) != PGRES_COMMAND_OK) {
			fprintf(stderr, "%s: %s\n",progname, PQerrorMessage(pgLO->conn));
			PQclear(pgLO->res);
			PQexec(pgLO->conn, "ROLLBACK");
			fprintf(stderr, "\n%s: ROLLBACK\n", progname);
			exit(RE_ERROR);
		}	
		PQclear(pgLO->res);
	}	
 }
