/* @tier medium @module st @transform settlement-batch */
/*
 * st_bt_0002.pgc - 일일 정산대상 집계 배치  [tier=medium]
 *
 * 지정 영업일의 상태별(R/M/S/U) 건수와 거래금액을 집계하여 일일 정산
 * 대상 현황을 리포트한다.
 *
 * 실행:  st_bt_0002 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;


static int run_st_bt_0002(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9];
    char h_status[2];
    long h_cnt;
    long h_sum;
    EXEC SQL END DECLARE SECTION;

    const char *codes[4] = { "R", "M", "S", "U" };
    long total_cnt = 0, total_sum = 0;
    int  i;

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

    printf("========== 일일 정산대상 집계 [st_bt_0002] ==========\n");
    printf("  영업일 : %s\n", biz_date);

    for (i = 0; i < 4; i++) {
        strncpy(h_status, codes[i], sizeof(h_status) - 1);
        h_status[sizeof(h_status) - 1] = '\0';

        EXEC SQL SELECT count(*), coalesce(sum(amount), 0)
                 INTO :h_cnt, :h_sum
                 FROM st_ledger
                 WHERE biz_date = :h_biz_date
                   AND status   = :h_status;

        if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
            TX_DBIO_LOG_ERR("SELECT agg st_bt_0002");
            return TX_EDB;
        }
        printf("  [%s] 건수=%8ld  금액=%15ld\n", codes[i], h_cnt, h_sum);
        total_cnt += h_cnt;
        total_sum += h_sum;
    }

    printf("  ----------------------------------------\n");
    printf("  합계     건수=%8ld  금액=%15ld\n", total_cnt, total_sum);
    printf("=============================================\n");

    tx_log(TX_LOG_INFO, "[st_bt_0002] 집계완료 date=%s 건수=%ld 금액=%ld",
           biz_date, total_cnt, total_sum);
    return TX_OK;
}

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, "[st_bt_0002] 배치 시작 date=%s", biz_date);

    rc = st_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[st_bt_0002] DB 접속 실패 rc=%d", rc);
        return 1;
    }

    rc = run_st_bt_0002(biz_date);

    st_dbio_disconnect();

    tx_log(TX_LOG_INFO, "[st_bt_0002] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}