/* @tier hard @module au @transform authorization-dbio */
/*
 * au_io_0017.pgc - 승인한도 보조 DBIO (ECPG)  [tier=hard]
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "au_io_0017.h"

EXEC SQL INCLUDE sqlca;

int au_io_0017_fetch(const char *key, long *out_amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16];
    long h_amount;
    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 DECLARE cur_au_io_0017_f CURSOR FOR
        SELECT appr_amt FROM au_io_0017_dtl_t
        WHERE mcht_no = :h_key ORDER BY seq DESC;
    EXEC SQL OPEN cur_au_io_0017_f;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_io_0017_fetch");
        return TX_EDB;
    }
    EXEC SQL FETCH cur_au_io_0017_f INTO :h_amount;
    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        EXEC SQL CLOSE cur_au_io_0017_f;
        return TX_ENOENT;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_io_0017_fetch");
        EXEC SQL CLOSE cur_au_io_0017_f;
        return TX_EDB;
    }
    EXEC SQL CLOSE cur_au_io_0017_f;

    *out_amount = h_amount;
    return TX_OK;
}

int au_io_0017_touch(const char *key, long amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16];
    long h_amount;
    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_amount = amount;

    EXEC SQL UPDATE au_io_0017_t
        SET status_cd = CASE WHEN :h_amount > 0 THEN '00' ELSE '99' END,
            upd_ts = now()
        WHERE mcht_no = :h_key;

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_io_0017_touch");
        return TX_EDB;
    }
    if (sqlca.sqlerrd[2] == 0)
        return TX_ENOENT;
    return TX_OK;
}

long au_io_0017_total(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9];
    long h_max;
    long h_min;
    EXEC SQL END DECLARE SECTION;

    if (!biz_date)
        return -1;

    strncpy(h_biz_date, biz_date, sizeof(h_biz_date) - 1);
    h_biz_date[sizeof(h_biz_date) - 1] = '\0';

    EXEC SQL SELECT coalesce(max(appr_amt), 0), coalesce(min(appr_amt), 0)
        INTO :h_max, :h_min
        FROM au_io_0017_dtl_t
        WHERE biz_date = :h_biz_date;

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("au_io_0017_total");
        return -1;
    }
    return h_max - h_min;
}