/* @tier medium @module au @transform authorization-online */
/*
 * au_ol_0026.pgc - 카드 블랙리스트 조회(거래이력 기반) (AU_OL_0026)  [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_0026, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_card[20];
    int  h_fail, h_total;
    EXEC SQL END DECLARE SECTION;

    char card[20];
    int  blacklisted = 0;

    tx_log(TX_LOG_INFO, "[AU_OL_0026] 카드 블랙리스트 조회 진입");
    if (tx_buf_get(ctx->in, "CARDNO", card, sizeof(card)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    strncpy(h_card, card, 19); h_card[19] = '\0';

    EXEC SQL SELECT count(*) FILTER (WHERE status = 'U'), count(*)
        INTO :h_fail, :h_total
        FROM au_ledger WHERE card_no = :h_card;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_ol_0026 블랙리스트");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    if (h_total >= 5 && h_fail * 2 >= h_total)
        blacklisted = 1;

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "CARDNO", card);
    tx_buf_sets(ctx->out, "BLACKLIST", blacklisted ? "Y" : "N");
    tx_buf_setlong(ctx->out, "FAILCNT", h_fail);
    tx_buf_sets(ctx->out, "RESPCODE", blacklisted ? RESP_INVALID : RESP_OK);
    tx_log(TX_LOG_INFO, "[AU_OL_0026] 블랙리스트 card=%s fail=%d/%d bl=%d",
           card, h_fail, h_total, blacklisted);
    tx_return(ctx, blacklisted ? TX_FAIL : TX_OK, ctx->out);
}
