/* @tier medium @module mm @transform master-batch */
/*
 * mm_bt_0007.pgc - BIN 마스터 적재배치 (MM_BT_0007)  [tier=medium]
 *
 * 카드사에서 제공한 BIN 스테이징(mm_stage_bin) 을 커서로 순회하며 BIN
 * 마스터(mm_card_bin) 에 UPSERT 한다. 동일 BIN 이 존재하면 발급사/브랜드/
 * 카드종류를 UPDATE 하고, 없으면 INSERT 한다. 신규/갱신 건수를 집계한다.
 * 배치 main 엔트리 포함.
 *
 * 실행:  mm_bt_0007 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

static int run_mm_bt_0007(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9];
    char h_bin[8];
    char h_issuer_cd[8];
    char h_card_brand[16];
    char h_card_type[8];
    int  h_exist;
    EXEC SQL END DECLARE SECTION;

    long total = 0, inserted = 0, updated = 0, errcnt = 0;

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

    EXEC SQL DECLARE cur_mm_bt_0007 CURSOR FOR
        SELECT bin, issuer_cd, card_brand, card_type
        FROM mm_stage_bin
        WHERE recv_date = :h_biz_date
        ORDER BY bin;

    EXEC SQL OPEN cur_mm_bt_0007;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("OPEN cur_mm_bt_0007");
        return TX_EDB;
    }

    if (tx_begin() != TX_OK)
        tx_log(TX_LOG_WARN, "[mm_bt_0007] tx_begin 경고");

    for (;;) {
        EXEC SQL FETCH cur_mm_bt_0007
            INTO :h_bin, :h_issuer_cd, :h_card_brand, :h_card_type;

        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("FETCH cur_mm_bt_0007");
            errcnt++;
            break;
        }

        total++;

        /* 존재 여부 판정 */
        h_exist = 0;
        EXEC SQL SELECT COUNT(*) INTO :h_exist
                 FROM mm_card_bin
                 WHERE bin = :h_bin;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("SELECT COUNT mm_card_bin");
            errcnt++;
            continue;
        }

        if (h_exist > 0) {
            EXEC SQL UPDATE mm_card_bin
                        SET issuer_cd  = :h_issuer_cd,
                            card_brand = :h_card_brand,
                            card_type  = :h_card_type,
                            upd_date   = :h_biz_date
                      WHERE bin = :h_bin;
            if (sqlca.sqlcode != TX_SQL_OK) {
                TX_DBIO_LOG_ERR("UPDATE mm_card_bin");
                errcnt++;
                continue;
            }
            updated++;
        } else {
            EXEC SQL INSERT INTO mm_card_bin
                         (bin, issuer_cd, card_brand, card_type, reg_date)
                     VALUES (:h_bin, :h_issuer_cd, :h_card_brand,
                             :h_card_type, :h_biz_date);
            if (sqlca.sqlcode != TX_SQL_OK) {
                TX_DBIO_LOG_ERR("INSERT mm_card_bin");
                errcnt++;
                continue;
            }
            inserted++;
        }
    }

    EXEC SQL CLOSE cur_mm_bt_0007;

    if (errcnt == 0)
        tx_commit();
    else
        tx_abort();

    tx_log(TX_LOG_INFO,
           "[mm_bt_0007] 요약 date=%s 대상=%ld 신규=%ld 갱신=%ld 오류=%ld",
           biz_date, total, inserted, updated, errcnt);

    printf("========== BIN 마스터 적재배치 [mm_bt_0007] ==========\n");
    printf("  기준일       : %s\n", biz_date);
    printf("  대상 건수    : %ld\n", total);
    printf("  신규 등록    : %ld\n", inserted);
    printf("  기존 갱신    : %ld\n", updated);
    printf("  오류 건수    : %ld\n", errcnt);
    printf("===================================================\n");

    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 기준일 '%s'\n", biz_date);
        return 2;
    }

    tx_log(TX_LOG_INFO, "[mm_bt_0007] 배치 시작 date=%s", biz_date);

    rc = mm_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[mm_bt_0007] DB 접속 실패 rc=%d", rc);
        return 1;
    }

    rc = run_mm_bt_0007(biz_date);

    mm_dbio_disconnect();

    tx_log(TX_LOG_INFO, "[mm_bt_0007] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}