/*
 * mg_promote_batch.pgc - mg 실패 큐 재시도 승격 배치 (XA).
 *
 * ATMI client: tpinit/tpopen open the ECPG XA RM, tpbegin starts ONE global
 * transaction; 실패(F) 큐를 대기(Q)로 되돌리면서 retry_cnt 를 산술 증가
 * (SET retry_cnt = retry_cnt + 1) 시키는 UPDATE; then tpcommit drives XA 2PC.
 * Usage: mg_promote_batch [YYYY-MM-DD]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <atmi.h>
#include "mg_dbio.h"

int main(int argc, char **argv)
{
    const char *bizdate = (argc > 1) ? argv[1] : "2026-07-19";
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[16];
    long h_upd = 0;
    EXEC SQL END DECLARE SECTION;

    strncpy(h_bizdate, bizdate, sizeof(h_bizdate)-1); h_bizdate[sizeof(h_bizdate)-1] = 0;

    if (tpinit(NULL) < 0) { fprintf(stderr, "tpinit FAIL: %s\n", tpstrerror(tperrno)); return 1; }
    if (tpopen() < 0)     { fprintf(stderr, "tpopen FAIL: %s\n", tpstrerror(tperrno)); return 1; }
    if (tpbegin(60, 0) < 0) { fprintf(stderr, "tpbegin FAIL: %s\n", tpstrerror(tperrno)); return 1; }

    EXEC SQL UPDATE mg_queue SET retry_cnt = retry_cnt + 1, status = 'Q'
        WHERE biz_date = :h_bizdate AND status = 'F';
    if (sqlca.sqlcode < 0) { fprintf(stderr, "mg_promote_batch FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }
    h_upd = sqlca.sqlerrd[2];

    if (tpcommit(0) < 0) { fprintf(stderr, "tpcommit FAIL: %s\n", tpstrerror(tperrno)); tpabort(0); return 1; }
    printf(">>> mg_promote_batch COMMIT: bizdate=%s promoted=%ld\n", bizdate, h_upd);

    tpclose(); tpterm();
    return 0;
}
