/* @tier easy @module mm @transform master-online */
/*
 * mm_ol_0021.pgc - 가맹점 검색(단건) 서비스 (MM_OL_0021)  [tier=easy]
 *
 * 사업자번호(biz_no)를 키로 mm_merchant 를 1건 조회하여 가맹점번호/상호/
 * 상태/등록일을 응답한다. 조회 전용(읽기) 서비스. (마스터 참조)
 */
#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_0021, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_no[16];
    char h_merch_id[16];
    char h_merch_nm[64];
    char h_status[2];
    char h_reg_date[9];
    EXEC SQL END DECLARE SECTION;

    char biz_no[16];
    char status_nm[16];

    tx_log(TX_LOG_INFO, "[MM_OL_0021] 가맹점 검색(단건) 서비스 진입");

    if (tx_buf_get(ctx->in, "BIZNO", biz_no, sizeof(biz_no)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[MM_OL_0021] BIZNO 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "MM2100");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    strncpy(h_biz_no, biz_no, sizeof(h_biz_no) - 1);
    h_biz_no[sizeof(h_biz_no) - 1] = '\0';

    EXEC SQL
        SELECT merch_id, merch_nm, status, reg_date
          INTO :h_merch_id, :h_merch_nm, :h_status, :h_reg_date
          FROM mm_merchant
         WHERE biz_no = :h_biz_no;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[MM_OL_0021] 사업자번호 미등록 biz_no=%s", biz_no);
        tx_buf_sets(ctx->out, "ERRCODE", RESP_NOMERCH);
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("SELECT mm_merchant by biz_no");
        tx_buf_sets(ctx->out, "ERRCODE", "MM2109");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 상태코드 → 한글 라벨 매핑 */
    if (strcmp(h_status, MM_ST_RECV) == 0)
        strncpy(status_nm, "접수", sizeof(status_nm) - 1);
    else if (strcmp(h_status, MM_ST_DONE) == 0)
        strncpy(status_nm, "정상", sizeof(status_nm) - 1);
    else if (strcmp(h_status, MM_ST_FAIL) == 0)
        strncpy(status_nm, "해지", sizeof(status_nm) - 1);
    else
        strncpy(status_nm, "기타", sizeof(status_nm) - 1);

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "BIZNO", biz_no);
    tx_buf_sets(ctx->out, "MERCHID", h_merch_id);
    tx_buf_sets(ctx->out, "MERCHNM", h_merch_nm);
    tx_buf_sets(ctx->out, "STATUS", h_status);
    tx_buf_sets(ctx->out, "STATUSNM", status_nm);
    tx_buf_sets(ctx->out, "REGDATE", h_reg_date);
    tx_buf_sets(ctx->out, "ERRCODE", RESP_OK);
    tx_log(TX_LOG_INFO, "[MM_OL_0021] 검색완료 biz_no=%s merch=%s",
           biz_no, h_merch_id);
    tx_return(ctx, TX_OK, ctx->out);
}