/*
 * mg_errbps_batch.pgc - mg 실패 응답코드 비율(bps) 산출 배치 (XA).
 *
 * ATMI client: tpinit/tpopen open the ECPG XA RM, tpbegin starts ONE global
 * transaction; 단일 SELECT 에서 CASE-sum(rc<>'00') 으로 실패 건과 전체 건을
 * 동시에 집계하고 C 에서 bps 를 계산; then tpcommit drives XA 2PC.
 * Usage: mg_errbps_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_fail = 0, h_tot = 0, h_bps = 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 SELECT
        coalesce(sum(CASE WHEN rc <> '00' THEN 1 ELSE 0 END),0), count(*)
        INTO :h_fail, :h_tot FROM mg_msg_log WHERE biz_date = :h_bizdate;
    if (sqlca.sqlcode < 0) { fprintf(stderr, "mg_errbps_batch FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }
    h_bps = (h_tot > 0) ? h_fail * 10000 / h_tot : 0;

    if (tpcommit(0) < 0) { fprintf(stderr, "tpcommit FAIL: %s\n", tpstrerror(tperrno)); tpabort(0); return 1; }
    printf(">>> mg_errbps_batch COMMIT: bizdate=%s fail=%ld total=%ld bps=%ld\n", bizdate, h_fail, h_tot, h_bps);

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