/* @tier hard @module py @transform payment-batch */
/*
 * py_bt_0016.pgc - 지급 실패 재처리 배치 (실패건 재이체 tx_call)  [tier=hard]
 *
 * 배치 main 엔트리 포함.  실행:  py_bt_0016 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "py_core.h"

EXEC SQL INCLUDE sqlca;

static int run_py_bt_0016(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9], h_key[16], h_acct[20];
    long h_amount, h_fee;
    EXEC SQL END DECLARE SECTION;

    TXBUF *req, *resp;
    long total = 0, ok = 0, fail = 0;
    int  rc;

    strncpy(h_biz_date, biz_date, 8); h_biz_date[8] = '\0';

    EXEC SQL DECLARE cur_pyredo CURSOR FOR
        SELECT key, card_no, amount, fee FROM py_ledger
        WHERE biz_date = :h_biz_date AND status = 'U' AND card_no <> 'SPLIT'
        ORDER BY key;
    EXEC SQL OPEN cur_pyredo;
    if (sqlca.sqlcode != TX_SQL_OK) { TX_DBIO_LOG_ERR("OPEN cur_pyredo"); return TX_EDB; }

    req  = tx_buf_alloc();
    resp = tx_buf_alloc();
    if (!req || !resp) { EXEC SQL CLOSE cur_pyredo; return TX_ENOMEM; }

    for (;;) {
        EXEC SQL FETCH cur_pyredo INTO :h_key, :h_acct, :h_amount, :h_fee;
        if (sqlca.sqlcode == TX_SQL_NOTFOUND) break;
        if (sqlca.sqlcode != TX_SQL_OK) break;
        total++;
        tx_buf_reset(req);
        tx_buf_reset(resp);
        tx_buf_sets(req, "ACCTNO", h_acct);
        tx_buf_setlong(req, "AMOUNT", h_amount - h_fee);
        rc = tx_call("PY_TRANSFER", req, resp);
        if (rc == TX_OK) {
            EXEC SQL UPDATE py_ledger SET status = 'S', upd_ts = now() WHERE key = :h_key;
            if (sqlca.sqlcode == TX_SQL_OK) { tx_commit(); ok++; }
        } else {
            fail++;
        }
    }
    tx_buf_free(req);
    tx_buf_free(resp);
    EXEC SQL CLOSE cur_pyredo;

    printf("===== 지급 실패 재처리 [py_bt_0016] 대상=%ld 재이체성공=%ld 실패=%ld =====\n",
           total, ok, fail);
    tx_log(TX_LOG_INFO, "[py_bt_0016] 실패재처리 date=%s ok=%ld fail=%ld", biz_date, ok, fail);
    return TX_OK;
}

int main(int argc, char **argv)
{
    const char *biz_date;
    const char *target;
    int rc;

    tx_set_loglevel(TX_LOG_INFO);
    if (argc < 2) {
        fprintf(stderr, "사용법: %s <YYYYMMDD> [db@host]\n", argv[0]);
        return 2;
    }
    biz_date = argv[1];
    target   = (argc >= 3) ? argv[2] : NULL;
    if (!date_is_valid(biz_date)) {
        fprintf(stderr, "오류: 유효하지 않은 영업일 '%s'\n", biz_date);
        return 2;
    }
    tx_log(TX_LOG_INFO, "[py_bt_0016] 배치 시작 date=%s", biz_date);
    rc = py_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[py_bt_0016] DB 접속 실패 rc=%d", rc);
        return 1;
    }
    rc = run_py_bt_0016(biz_date);
    py_dbio_disconnect();
    tx_log(TX_LOG_INFO, "[py_bt_0016] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}