/* @tier hard @module rc @transform reconciliation-batch */
/*
 * rc_bt_0015.pgc - 일괄 대사마감 배치 (2-phase) (RC_BT_0015)
 *
 * 지정 영업일에 대해 두 단계의 커서로 대사 마감을 일괄 수행한다.
 * 업무규칙:
 *   [Phase1] 매입확정('M') 건 -> 정산완료('S') 로 전이 (마감정산).
 *   [Phase2] 미처리 접수('R') 건 -> 불일치('U') 로 전이 (마감불일치).
 * 두 단계를 단일 트랜잭션으로 묶어 errcnt==0 일 때만 커밋한다.
 *
 * 실행:  rc_bt_0015 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

static int run_rc_bt_0015(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_biz_date[9];
    char h_key[16];
    char h_new_status[2];
    EXEC SQL END DECLARE SECTION;

    long settle_cnt = 0, close_unmatch = 0, errcnt = 0;
    int  rc;

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

    EXEC SQL DECLARE cur_rc_bt_0015_a CURSOR FOR
        SELECT key
        FROM rc_ledger
        WHERE biz_date = :h_biz_date
          AND status   = 'M'
        ORDER BY key;

    EXEC SQL DECLARE cur_rc_bt_0015_b CURSOR FOR
        SELECT key
        FROM rc_ledger
        WHERE biz_date = :h_biz_date
          AND status   = 'R'
        ORDER BY key;

    if (tx_begin() != TX_OK)
        tx_log(TX_LOG_WARN, "[rc_bt_0015] tx_begin 경고");

    /* ---- Phase1: 매입확정('M') -> 정산완료('S') ---- */
    EXEC SQL OPEN cur_rc_bt_0015_a;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("OPEN cur_rc_bt_0015_a");
        tx_abort();
        return TX_EDB;
    }

    for (;;) {
        EXEC SQL FETCH cur_rc_bt_0015_a INTO :h_key;

        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("FETCH cur_rc_bt_0015_a");
            errcnt++;
            break;
        }

        strncpy(h_new_status, RC_ST_SETTLED, sizeof(h_new_status));
        rc = rc_rec_update_status(h_key, h_new_status);
        if (rc != TX_OK) {
            tx_log(TX_LOG_ERROR, "[rc_bt_0015] 마감정산 실패 key=%s rc=%d",
                   h_key, rc);
            errcnt++;
            continue;
        }
        settle_cnt++;
    }

    EXEC SQL CLOSE cur_rc_bt_0015_a;

    /* ---- Phase2: 미처리 접수('R') -> 불일치('U') ---- */
    EXEC SQL OPEN cur_rc_bt_0015_b;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("OPEN cur_rc_bt_0015_b");
        errcnt++;
    } else {
        for (;;) {
            EXEC SQL FETCH cur_rc_bt_0015_b INTO :h_key;

            if (sqlca.sqlcode == TX_SQL_NOTFOUND)
                break;
            if (sqlca.sqlcode != TX_SQL_OK) {
                TX_DBIO_LOG_ERR("FETCH cur_rc_bt_0015_b");
                errcnt++;
                break;
            }

            strncpy(h_new_status, RC_ST_FAIL, sizeof(h_new_status));
            rc = rc_rec_update_status(h_key, h_new_status);
            if (rc != TX_OK) {
                tx_log(TX_LOG_ERROR, "[rc_bt_0015] 마감불일치 실패 key=%s rc=%d",
                       h_key, rc);
                errcnt++;
                continue;
            }
            close_unmatch++;
        }

        EXEC SQL CLOSE cur_rc_bt_0015_b;
    }

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

    tx_log(TX_LOG_INFO,
           "[rc_bt_0015] 요약 date=%s 마감정산=%ld 마감불일치=%ld 오류=%ld",
           biz_date, settle_cnt, close_unmatch, errcnt);

    printf("======= 일괄 대사마감 배치 [rc_bt_0015] =======\n");
    printf("  영업일          : %s\n", biz_date);
    printf("  마감정산(S)     : %ld\n", settle_cnt);
    printf("  마감불일치(U)   : %ld\n", close_unmatch);
    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 영업일 '%s'\n", biz_date);
        return 2;
    }

    tx_log(TX_LOG_INFO, "[rc_bt_0015] 배치 시작 date=%s", biz_date);

    rc = rc_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[rc_bt_0015] DB 접속 실패 rc=%d", rc);
        return 1;
    }

    rc = run_rc_bt_0015(biz_date);

    rc_dbio_disconnect();

    tx_log(TX_LOG_INFO, "[rc_bt_0015] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}
