/* @tier medium @module au @transform authorization-batch */
/*
 * au_bt_0006.pgc - 한도 복원 배치 (취소건 한도 원복)  [tier=medium]
 *
 * 배치 main 엔트리 포함.  실행:  au_bt_0006 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "au_core.h"

EXEC SQL INCLUDE sqlca;

static int run_au_bt_0006(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9], h_key[16], h_merch[16];
    long h_amount;
    EXEC SQL END DECLARE SECTION;

    long total = 0, restored = 0, errcnt = 0, sum = 0;

    strncpy(h_biz_date, biz_date, 8); h_biz_date[8] = '\0';

    EXEC SQL DECLARE cur_restore CURSOR FOR
        SELECT key, merch_id, amount FROM au_ledger
        WHERE biz_date = :h_biz_date AND status = 'U' AND amount > 0
        ORDER BY merch_id, key;
    EXEC SQL OPEN cur_restore;
    if (sqlca.sqlcode != TX_SQL_OK) { TX_DBIO_LOG_ERR("OPEN cur_restore"); return TX_EDB; }

    if (tx_begin() != TX_OK) tx_log(TX_LOG_WARN, "[au_bt_0006] tx_begin 경고");
    for (;;) {
        EXEC SQL FETCH cur_restore INTO :h_key, :h_merch, :h_amount;
        if (sqlca.sqlcode == TX_SQL_NOTFOUND) break;
        if (sqlca.sqlcode != TX_SQL_OK) { errcnt++; break; }
        total++;
        EXEC SQL UPDATE au_ledger SET fee = 0, upd_ts = now() WHERE key = :h_key;
        if (sqlca.sqlcode != TX_SQL_OK) { errcnt++; continue; }
        restored++;
        sum += h_amount;
    }
    EXEC SQL CLOSE cur_restore;
    if (errcnt == 0) tx_commit(); else tx_abort();

    printf("===== 한도복원 [au_bt_0006] 대상=%ld 복원=%ld 복원액=%ld =====\n",
           total, restored, sum);
    tx_log(TX_LOG_INFO, "[au_bt_0006] 한도복원 date=%s 복원=%ld", biz_date, restored);
    return (errcnt == 0) ? TX_OK : TX_FAIL;
}

int main(int argc, char **argv)
{
    const char *biz_date;
    const char *target;
    int rc;

    tx_set_loglevel(TX_LOG_INFO);
    if (argc < 2) {
        fprintf(stderr, "사용법: %s <YYYYMMDD> [db@host]\n", argv[0]);
        return 2;
    }
    biz_date = argv[1];
    target   = (argc >= 3) ? argv[2] : NULL;
    if (!date_is_valid(biz_date)) {
        fprintf(stderr, "오류: 유효하지 않은 영업일 '%s'\n", biz_date);
        return 2;
    }
    tx_log(TX_LOG_INFO, "[au_bt_0006] 배치 시작 date=%s", biz_date);
    rc = au_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[au_bt_0006] DB 접속 실패 rc=%d", rc);
        return 1;
    }
    rc = run_au_bt_0006(biz_date);
    au_dbio_disconnect();
    tx_log(TX_LOG_INFO, "[au_bt_0006] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}