/*
 * au_reversal_audit_batch.pgc - au 역전건 감사 (집계 후 UPDATE, XA).
 *
 * First aggregates the day's reversed(R) authorization amount, then stamps those
 * rows as audited via a set UPDATE - both under ONE global XA transaction.
 * Usage: au_reversal_audit_batch [YYYY-MM-DD]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <atmi.h>
#include "au_dbio.h"

int main(int argc, char **argv)
{
    const char *bizdate = (argc > 1) ? argv[1] : "2026-07-19";
    long stamped = 0;

    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[16];
    long h_sum;
    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 SELECT coalesce(sum(amount),0) INTO :h_sum FROM au_authorization
        WHERE biz_date = :h_bizdate AND status = 'R';
    if (sqlca.sqlcode < 0) { fprintf(stderr, "SUM FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }

    EXEC SQL UPDATE au_authorization SET updated_at = now()
        WHERE biz_date = :h_bizdate AND status = 'R';
    if (sqlca.sqlcode < 0) { fprintf(stderr, "UPDATE FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }
    stamped = sqlca.sqlerrd[2];

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

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