/* @tier hard @module au @transform authorization-online */
/*
 * au_ol_0009.pgc - 대행승인 fallback(주센터 실패시 백업) (AU_OL_0009)  [tier=hard]
 *
 * 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_0009, ctx)
{
    char key[16];
    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AU_OL_0009] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    TXBUF *req;
    long amount = 0;
    int  rc;

    tx_log(TX_LOG_INFO, "[AU_OL_0009] 대행승인 fallback 진입");
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);

    req = tx_buf_alloc();
    if (!req) {
        tx_return(ctx, TX_ENOMEM, ctx->out);
        return;
    }
    tx_buf_sets(req, "KEY", key);
    tx_buf_setlong(req, "AMOUNT", amount);

    rc = tx_call("AU_ISSUER", req, ctx->out);
    if (rc != TX_OK) {
        tx_log(TX_LOG_WARN, "[AU_OL_0009] 주센터 실패 rc=%d, 대행센터 전환", rc);
        tx_buf_reset(ctx->out);
        rc = tx_call("AU_STANDIN", req, ctx->out);
        if (rc == TX_OK)
            tx_buf_sets(ctx->out, "STANDIN", "Y");
    } else {
        tx_buf_sets(ctx->out, "STANDIN", "N");
    }
    tx_buf_free(req);

    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AU_OL_0009] 대행승인까지 실패 rc=%d", rc);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, rc, ctx->out);
        return;
    }
    tx_log(TX_LOG_INFO, "[AU_OL_0009] fallback 처리완료 key=%s", key);
    tx_return(ctx, TX_OK, ctx->out);
}
