/* @tier easy @module mm @transform master-dbio */
/*
 * mm_io_0010.pgc - 마스터 보조 DBIO (ECPG)  [tier=easy]
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "mm_io_0010.h"

EXEC SQL INCLUDE sqlca;

int mm_io_0010_fetch(const char *key, long *out_amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[20];
    long h_amt;
    long h_acc;
    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';
    h_acc = 0;

    EXEC SQL DECLARE mm_io_0010_fetch_cur CURSOR FOR
        SELECT avail_amt FROM mst_customer
        WHERE cust_id = :h_key
        ORDER BY biz_date;
    EXEC SQL OPEN mm_io_0010_fetch_cur;
    for (;;) {
        EXEC SQL FETCH mm_io_0010_fetch_cur INTO :h_amt;
        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("mm_io_0010_fetch");
            EXEC SQL CLOSE mm_io_0010_fetch_cur;
            return TX_EDB;
        }
        h_acc += h_amt;
    }
    EXEC SQL CLOSE mm_io_0010_fetch_cur;
    *out_amount = h_acc;
    return TX_OK;
}

int mm_io_0010_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 mst_customer
        (cust_id, avail_amt, biz_date, reg_ts)
        VALUES (:h_key, :h_amt, to_char(now(), 'YYYYMMDD'), now());
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("mm_io_0010_touch");
        return TX_EDB;
    }
    return TX_OK;
}

long mm_io_0010_total(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bd[9];
    char h_grp[20];
    long h_sub;
    long h_tot;
    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';
    h_tot = 0;

    EXEC SQL DECLARE mm_io_0010_total_gc CURSOR FOR
        SELECT branch_cd, coalesce(sum(avail_amt), 0)
        FROM mst_acct_bal
        WHERE biz_date = :h_bd
        GROUP BY branch_cd
        ORDER BY branch_cd;
    EXEC SQL OPEN mm_io_0010_total_gc;
    for (;;) {
        EXEC SQL FETCH mm_io_0010_total_gc INTO :h_grp, :h_sub;
        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("mm_io_0010_total");
            EXEC SQL CLOSE mm_io_0010_total_gc;
            return -1;
        }
        h_tot += h_sub;
    }
    EXEC SQL CLOSE mm_io_0010_total_gc;
    return h_tot;
}