/* @tier hard @module py @transform payment-online */
/*
 * py_ol_0014.pgc - 지급 이체연계(tx_call 이체 후 확정) (PY_OL_0014)  [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 "py_core.h"

EXEC SQL INCLUDE sqlca;

TX_SERVICE(PY_OL_0014, ctx)
{
    char key[16];
    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[PY_OL_0014] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16], h_acct[20];
    long h_amount, h_fee;
    EXEC SQL END DECLARE SECTION;

    TXBUF *req;
    char tresp[8];
    int  rc;

    tx_log(TX_LOG_INFO, "[PY_OL_0014] 지급 이체연계 진입");
    strncpy(h_key, key, 15); h_key[15] = '\0';

    EXEC SQL SELECT card_no, amount, fee INTO :h_acct, :h_amount, :h_fee
        FROM py_ledger WHERE key = :h_key AND status = 'M';
    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[PY_OL_0014] 확정 지급건 아님 key=%s", key);
        tx_return(ctx, TX_ENOENT, ctx->out); return;
    }

    req = tx_buf_alloc();
    if (!req) { tx_return(ctx, TX_ENOMEM, ctx->out); return; }
    tx_buf_sets(req, "ACCTNO", h_acct);
    tx_buf_setlong(req, "AMOUNT", h_amount - h_fee);
    rc = tx_call("PY_TRANSFER", req, ctx->out);
    tx_buf_free(req);

    if (rc != TX_OK ||
        (tx_buf_get(ctx->out, "RESPCODE", tresp, sizeof(tresp)) == TX_OK &&
         strcmp(tresp, RESP_OK) != 0)) {
        tx_log(TX_LOG_ERROR, "[PY_OL_0014] 이체 실패 key=%s", key);
        tx_return(ctx, TX_FAIL, ctx->out); return;
    }

    if (tx_begin() != TX_OK) tx_log(TX_LOG_WARN, "[PY_OL_0014] tx_begin 경고");
    EXEC SQL UPDATE py_ledger SET status = 'S', upd_ts = now() WHERE key = :h_key;
    tx_commit();

    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_setlong(ctx->out, "TRANSFERRED", h_amount - h_fee);
    tx_log(TX_LOG_INFO, "[PY_OL_0014] 이체완료 key=%s net=%ld", key, h_amount - h_fee);
    tx_return(ctx, TX_OK, ctx->out);
}