/* @tier medium @module au @transform authorization-online */
/*
 * au_ol_0031.pgc - 승인 재처리 접수(거절건 재접수 전이) (AU_OL_0031)  [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_0031, ctx)
{
    char key[16];
    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AU_OL_0031] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16], h_status[2];
    long h_amount;
    EXEC SQL END DECLARE SECTION;

    tx_log(TX_LOG_INFO, "[AU_OL_0031] 승인 재처리 접수 진입");
    strncpy(h_key, key, 15); h_key[15] = '\0';

    EXEC SQL SELECT amount, status INTO :h_amount, :h_status
        FROM au_ledger WHERE key = :h_key;
    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (h_status[0] != 'U') {
        tx_log(TX_LOG_WARN, "[AU_OL_0031] 재처리 대상아님 status=%s", h_status);
        tx_return(ctx, TX_FAIL, ctx->out);
        return;
    }

    if (tx_begin() != TX_OK) tx_log(TX_LOG_WARN, "[AU_OL_0031] tx_begin 경고");
    EXEC SQL UPDATE au_ledger
        SET status = 'R', fee = 0, upd_ts = now()
        WHERE key = :h_key;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_ol_0031 재처리");
        tx_abort();
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }
    tx_commit();

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "KEY", key);
    tx_buf_setlong(ctx->out, "AMOUNT", h_amount);
    tx_log(TX_LOG_INFO, "[AU_OL_0031] 재처리 접수완료 key=%s", key);
    tx_return(ctx, TX_OK, ctx->out);
}