/* @tier medium @module lg @transform ledger-dbio */
/*
 * lg_io_0018.pgc - 원장 보조 DBIO (ECPG)  [tier=medium]
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "lg_io_0018.h"

EXEC SQL INCLUDE sqlca;

int lg_io_0018_fetch(const char *key, long *out_amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[32];
    long h_val;
    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 dr_amt
        INTO :h_val
        FROM lg_ledger_line
        WHERE ledger_key IN (
            SELECT ledger_key FROM lg_ledger_acct WHERE gl_acct = :h_key)
        ORDER BY dr_amt DESC
        LIMIT 1;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND)
        return TX_ENOENT;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_io_0018_fetch");
        return TX_EDB;
    }
    *out_amount = h_val;
    return TX_OK;
}

int lg_io_0018_touch(const char *key, long amount)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[32];
    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 lg_ledger_line
        SET dr_amt = :h_amt, post_flag = 'Y', upd_ts = now()
        WHERE ledger_key = :h_key AND post_flag = 'N';
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_io_0018_touch");
        return TX_EDB;
    }
    if (sqlca.sqlerrd[2] == 0)
        return TX_ENOENT;
    return TX_OK;
}

long lg_io_0018_total(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_dt[16];
    long h_sum;
    EXEC SQL END DECLARE SECTION;

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

    EXEC SQL SELECT coalesce(sum(a.dr_amt), 0)
        INTO :h_sum
        FROM lg_ledger_line a
        JOIN lg_ledger_acct b ON a.ledger_key = b.ledger_key
        WHERE a.post_dt = :h_dt;

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_io_0018_total");
        return -1;
    }
    return h_sum;
}