/*
 * lg_report_batch.pgc - lg 계정잔액 상위 리포트 배치 (커서 ORDER BY DESC) (XA 배치).
 *
 * ATMI client: tpinit/tpopen open the ECPG XA RM, tpbegin starts ONE global
 * transaction; EXEC SQL work runs on that branch, then tpcommit drives XA 2PC.
 * Usage: lg_report_batch [YYYY-MM-DD]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <atmi.h>
#include "lg_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];
    char h_acct[32];
    long h_bal;
    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; }

    long rows = 0;
    EXEC SQL DECLARE lrp CURSOR FOR
        SELECT acct, balance FROM lg_account_bal
        WHERE biz_date = :h_bizdate ORDER BY abs(balance) DESC LIMIT 10;
    EXEC SQL OPEN lrp;
    if (sqlca.sqlcode < 0) { fprintf(stderr, "OPEN FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }
    for (;;) {
        EXEC SQL FETCH lrp INTO :h_acct, :h_bal;
        if (sqlca.sqlcode == 100) break;
        if (sqlca.sqlcode < 0) { EXEC SQL CLOSE lrp; tpabort(0); return 1; }
        printf("    %-12s 잔액=%ld\n", h_acct, h_bal);
        rows++;
    }
    EXEC SQL CLOSE lrp;
    if (tpcommit(0) < 0) { fprintf(stderr, "tpcommit FAIL: %s\n", tpstrerror(tperrno)); tpabort(0); return 1; }
    printf(">>> lg_report_batch COMMIT: bizdate=%s 상위계정 %ld건\n", bizdate, rows);
    tpclose(); tpterm();
    return 0;
}
