/* @tier easy @module mm @transform master-online */
/*
 * mm_ol_0032.pgc - 마스터 요약조회 서비스 (MM_OL_0032)  [tier=easy]
 *
 * 가맹점 마스터 전체 요약을 여러 EXEC SQL 집계로 산출한다: 전체 가맹점 수,
 * 정상('M') 가맹점 수, 해지('U') 가맹점 수를 각각 COUNT 하여 응답한다.
 * 조회 전용(읽기) 서비스. (마스터 집계)
 */
#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_0032, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_st_done[2];
    char h_st_fail[2];
    long h_total_cnt;
    long h_active_cnt;
    long h_closed_cnt;
    EXEC SQL END DECLARE SECTION;

    tx_log(TX_LOG_INFO, "[MM_OL_0032] 마스터 요약조회 서비스 진입");

    strncpy(h_st_done, MM_ST_DONE, sizeof(h_st_done));
    strncpy(h_st_fail, MM_ST_FAIL, sizeof(h_st_fail));

    /* 1) 전체 가맹점 수 */
    h_total_cnt = 0;
    EXEC SQL
        SELECT COUNT(*) INTO :h_total_cnt
          FROM mm_merchant;

    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("COUNT mm_merchant total");
        tx_buf_sets(ctx->out, "ERRCODE", "MM3209");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 2) 정상 상태 가맹점 수 */
    h_active_cnt = 0;
    EXEC SQL
        SELECT COUNT(*) INTO :h_active_cnt
          FROM mm_merchant
         WHERE status = :h_st_done;

    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("COUNT mm_merchant active");
        tx_buf_sets(ctx->out, "ERRCODE", "MM3209");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 3) 해지 상태 가맹점 수 */
    h_closed_cnt = 0;
    EXEC SQL
        SELECT COUNT(*) INTO :h_closed_cnt
          FROM mm_merchant
         WHERE status = :h_st_fail;

    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("COUNT mm_merchant closed");
        tx_buf_sets(ctx->out, "ERRCODE", "MM3209");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_setlong(ctx->out, "TOTALCNT", h_total_cnt);
    tx_buf_setlong(ctx->out, "ACTIVECNT", h_active_cnt);
    tx_buf_setlong(ctx->out, "CLOSEDCNT", h_closed_cnt);
    tx_buf_sets(ctx->out, "ERRCODE", RESP_OK);
    tx_log(TX_LOG_INFO, "[MM_OL_0032] 요약조회 완료 총%ld 정상%ld 해지%ld",
           h_total_cnt, h_active_cnt, h_closed_cnt);
    tx_return(ctx, TX_OK, ctx->out);
}
