/* @tier medium @module mm @transform master-online */
/*
 * mm_ol_0009.pgc - 카드 BIN 조회 서비스 (MM_OL_0009)  [tier=medium]
 *
 * 6자리 BIN 으로 카드 BIN 마스터(mm_card_bin)를 조회하여 카드사코드
 * (issuer_cd)/카드종류(card_gb)/유효여부(valid_yn)를 반환한다. BIN 이
 * 숫자 6자리가 아니면 형식오류로 반려한다. (조회)
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

TX_SERVICE(MM_OL_0009, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bin[7];
    char h_issuer_cd[8];
    char h_card_gb[4];
    char h_valid_yn[2];
    char h_brand[16];
    EXEC SQL END DECLARE SECTION;

    char bin[7];
    int  i;

    tx_log(TX_LOG_INFO, "[MM_OL_0009] 카드 BIN 조회 서비스 진입");

    if (tx_buf_get(ctx->in, "BIN", bin, sizeof(bin)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[MM_OL_0009] BIN 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "MM0900");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* BIN 형식검증: 정확히 숫자 6자리 */
    if (strlen(bin) != 6) {
        tx_log(TX_LOG_WARN, "[MM_OL_0009] BIN 길이오류 bin=%s", bin);
        tx_buf_sets(ctx->out, "ERRCODE", "MM0901");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    for (i = 0; i < 6; i++) {
        if (bin[i] < '0' || bin[i] > '9') {
            tx_log(TX_LOG_WARN, "[MM_OL_0009] BIN 숫자아님 bin=%s", bin);
            tx_buf_sets(ctx->out, "ERRCODE", "MM0901");
            tx_return(ctx, TX_EINVAL, ctx->out);
            return;
        }
    }

    strncpy(h_bin, bin, sizeof(h_bin) - 1);
    h_bin[sizeof(h_bin) - 1] = '\0';

    EXEC SQL SELECT issuer_cd, card_gb, valid_yn, brand_nm
          INTO :h_issuer_cd, :h_card_gb, :h_valid_yn, :h_brand
          FROM mm_card_bin
         WHERE bin = :h_bin;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[MM_OL_0009] 미등록 BIN bin=%s", bin);
        tx_buf_sets(ctx->out, "ERRCODE", "MM0902");
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("SELECT mm_card_bin");
        tx_buf_sets(ctx->out, "ERRCODE", "MM0903");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "BIN", bin);
    tx_buf_sets(ctx->out, "ISSUERCD", h_issuer_cd);
    tx_buf_sets(ctx->out, "CARDGB", h_card_gb);
    tx_buf_sets(ctx->out, "VALIDYN", h_valid_yn);
    tx_buf_sets(ctx->out, "BRAND", h_brand);
    tx_buf_sets(ctx->out, "ERRCODE", RESP_OK);
    tx_log(TX_LOG_INFO, "[MM_OL_0009] 조회완료 bin=%s issuer=%s 유효=%s",
           bin, h_issuer_cd, h_valid_yn);
    tx_return(ctx, TX_OK, ctx->out);
}
