/* @tier medium @module cm @transform common-dbio */
/*
 * cm_io_0014.pgc - 공통 보조 DBIO (ECPG)  [tier=medium]
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "cm_io_0014.h"

EXEC SQL INCLUDE sqlca;

int cm_io_0014_fetch(const char *key, long *out_amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[20];
    long h_amt;
    int  h_cnt;
    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 count(*)
        INTO :h_cnt
        FROM com_calendar
        WHERE dept_cd = :h_key
          AND sort_seq > 0;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0014_fetch");
        return TX_EDB;
    }
    if (h_cnt == 0)
        return TX_ENOENT;

    EXEC SQL SELECT sort_seq
        INTO :h_amt
        FROM com_calendar
        WHERE dept_cd = :h_key;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0014_fetch");
        return TX_EDB;
    }
    *out_amount = h_amt;
    return TX_OK;
}

int cm_io_0014_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 INSERT INTO com_calendar (dept_cd, sort_seq, upd_ts)
        VALUES (:h_key, :h_amt, now())
        ON CONFLICT (dept_cd)
        DO UPDATE SET sort_seq = com_calendar.sort_seq + EXCLUDED.sort_seq,
                      upd_ts = now();
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0014_touch");
        return TX_EDB;
    }
    if (sqlca.sqlerrd[2] == 0)
        return TX_ENOENT;
    return TX_OK;
}

long cm_io_0014_total(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bd[9];
    long h_dr;
    long h_cr;
    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
            coalesce(sum(CASE WHEN del_yn = 'D' THEN sort_seq ELSE 0 END), 0),
            coalesce(sum(CASE WHEN del_yn = 'C' THEN sort_seq ELSE 0 END), 0)
        INTO :h_dr, :h_cr
        FROM com_menu
        WHERE apply_dt = :h_bd;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("cm_io_0014_total");
        return -1;
    }
    return h_dr - h_cr;
}