/* @tier medium @module au @transform authorization-online */
/*
 * au_ol_0022.pgc - 승인 중복검사(동일카드/금액 단시간) (AU_OL_0022)  [tier=medium]
 *
 * TxCore TX_SERVICE 엔트리. 요청 TXBUF 를 검증하고 임베디드 SQL / 표준
 * DBIO / tx_call 로 처리한 뒤 응답 TXBUF 를 구성한다.
 */
#include <stdio.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

TX_SERVICE(AU_OL_0022, ctx)
{
    char key[16];
    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AU_OL_0022] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    EXEC SQL BEGIN DECLARE SECTION;
    char h_card[20], h_bdate[9], h_key[16];
    long h_amount;
    int  h_cnt;
    EXEC SQL END DECLARE SECTION;

    char card[20], bdate[16];
    long amount = 0;

    tx_log(TX_LOG_INFO, "[AU_OL_0022] 승인 중복검사 진입");
    if (tx_buf_get(ctx->in, "CARDNO", card, sizeof(card)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (tx_buf_get(ctx->in, "BIZDATE", bdate, sizeof(bdate)) != TX_OK)
        date_today(bdate);
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);

    strncpy(h_card, card, 19); h_card[19] = '\0';
    strncpy(h_bdate, bdate, 8); h_bdate[8] = '\0';
    strncpy(h_key, key, 15);    h_key[15] = '\0';
    h_amount = amount;

    EXEC SQL SELECT count(*) INTO :h_cnt
        FROM au_ledger
        WHERE card_no = :h_card AND biz_date = :h_bdate
          AND amount = :h_amount AND key <> :h_key;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_ol_0022 중복검사");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "DUP", (h_cnt > 0) ? "Y" : "N");
    tx_buf_setlong(ctx->out, "DUPCNT", h_cnt);
    tx_buf_sets(ctx->out, "RESPCODE", (h_cnt > 0) ? RESP_INVALID : RESP_OK);
    tx_log(TX_LOG_INFO, "[AU_OL_0022] 중복검사 card=%s cnt=%d", card, h_cnt);
    tx_return(ctx, (h_cnt > 0) ? TX_FAIL : TX_OK, ctx->out);
}
