/* @tier medium @module cm @transform common-dbio */
/*
 * cm_io_0005.pgc - 공통 보조 DBIO (ECPG)  [tier=medium]
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "cm_io_0005.h"

EXEC SQL INCLUDE sqlca;

int cm_io_0005_fetch(const char *key, long *out_amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[20];
    long h_amt;
    EXEC SQL END DECLARE SECTION;

    if (!key || !out_amount)
        return TX_EINVAL;
    strncpy(h_key, key, sizeof(h_key) - 1);
    h_key[sizeof(h_key) - 1] = '\0';

    EXEC SQL SELECT coalesce(m.level_no, 0)
                  - (SELECT coalesce(sum(h.level_no), 0)
                       FROM com_user h WHERE h.code_id = m.code_id)
        INTO :h_amt
        FROM com_param m
        WHERE m.code_id = :h_key;
    if (sqlca.sqlcode == TX_SQL_NOTFOUND)
        return TX_ENOENT;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0005_fetch");
        return TX_EDB;
    }
    *out_amount = h_amt;
    return TX_OK;
}

int cm_io_0005_touch(const char *key, long amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[20];
    long h_amt;
    EXEC SQL END DECLARE SECTION;

    if (!key)
        return TX_EINVAL;
    strncpy(h_key, key, sizeof(h_key) - 1);
    h_key[sizeof(h_key) - 1] = '\0';
    h_amt = amount;

    EXEC SQL UPDATE com_param
        SET level_no = :h_amt, upd_ts = now()
        WHERE code_id = :h_key
          AND del_yn = 'A';
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0005_touch");
        return TX_EDB;
    }
    if (sqlca.sqlerrd[2] == 0)
        return TX_ENOENT;
    return TX_OK;
}

long cm_io_0005_total(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char  h_bd[9];
    long  h_max;
    short h_ind;
    EXEC SQL END DECLARE SECTION;

    if (!biz_date)
        return -1;
    strncpy(h_bd, biz_date, sizeof(h_bd) - 1);
    h_bd[sizeof(h_bd) - 1] = '\0';

    EXEC SQL SELECT max(level_no)
        INTO :h_max:h_ind
        FROM com_calendar
        WHERE apply_dt = :h_bd;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0005_total");
        return -1;
    }
    if (h_ind < 0)
        return 0;
    return h_max;
}
