/*
 * py_ledger_batch.pgc - py 지급 원장 생성 (INSERT..SELECT 배치, XA).
 *
 * Bulk-inserts one XFER ledger row per paid(P) payout of the biz_date using a
 * single INSERT ... SELECT, under ONE XA transaction. Usage: py_ledger_batch [YYYY-MM-DD]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <atmi.h>
#include "py_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_rows;
    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 INSERT INTO py_ledger (ledger_id, payout_id, entry_type, amount, biz_date)
        SELECT nextval('py_ledger_seq'), payout_id, 'XFER', net, biz_date
        FROM py_payout WHERE biz_date = :h_bizdate AND status = 'P';
    if (sqlca.sqlcode < 0) { fprintf(stderr, "py_ledger_batch FAIL [%d] %s\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); tpabort(0); return 1; }
    h_rows = sqlca.sqlerrd[2];

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

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