/* @tier medium @module st @transform settlement-online */
/*
 * st_ol_0002.pgc - 정산대상 접수 집계 (ST_OL_0002)  [tier=medium]
 *
 * 신규 정산대상 건을 접수(status=R)로 원장에 등록하고, 당일 접수 건수와
 * 접수 총액을 재집계하여 응답한다.
 */
#include <stdio.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;


TX_SERVICE(ST_OL_0002, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[9];
    long h_daycnt;
    long h_daysum;
    EXEC SQL END DECLARE SECTION;

    st_rec_t rec;
    char key[16], merch[16], bizdate[16];
    long amount = 0, daycnt = 0, daysum = 0;
    int  rc;

    tx_log(TX_LOG_INFO, "[ST_OL_0002] 정산대상 접수 집계 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK ||
        tx_buf_get(ctx->in, "MERCHID", merch, sizeof(merch)) != TX_OK ||
        tx_buf_get(ctx->in, "BIZDATE", bizdate, sizeof(bizdate)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);

    if (!amount_is_valid(amount) || !date_is_valid(bizdate)) {
        tx_log(TX_LOG_WARN, "[ST_OL_0002] 입력 검증 실패 amount=%ld date=%s", amount, bizdate);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* 접수 등록 (표준 DBIO) 를 트랜잭션 경계 안에서 수행 */
    if (tx_begin() != TX_OK)
        tx_log(TX_LOG_WARN, "[ST_OL_0002] tx_begin 경고");

    memset(&rec, 0, sizeof(rec));
    strncpy(rec.key, key, sizeof(rec.key) - 1);
    strncpy(rec.merch_id, merch, sizeof(rec.merch_id) - 1);
    strncpy(rec.biz_date, bizdate, sizeof(rec.biz_date) - 1);
    strncpy(rec.status, ST_ST_RECV, sizeof(rec.status) - 1);
    rec.amount = amount;
    rec.fee    = 0;

    rc = st_rec_insert(&rec);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[ST_OL_0002] 접수 등록 실패 rc=%d(%s)", rc, tx_strerror(rc));
        tx_abort();
        tx_return(ctx, rc, ctx->out);
        return;
    }
    tx_commit();

    /* 당일 접수(status=R) 건수/합계 재집계 (임베디드 집계) */
    strncpy(h_bizdate, bizdate, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';
    h_daycnt = 0;
    h_daysum = 0;

    EXEC SQL SELECT count(*), coalesce(sum(amount), 0)
        INTO :h_daycnt, :h_daysum
        FROM st_ledger
        WHERE biz_date = :h_bizdate
          AND status   = 'R';

    if (sqlca.sqlcode == TX_SQL_OK) {
        daycnt = h_daycnt;
        daysum = h_daysum;
    } else if (sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("SELECT 당일접수집계");
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "KEY", key);
    tx_buf_setlong(ctx->out, "DAYCNT", daycnt);
    tx_buf_setlong(ctx->out, "DAYSUM", daysum);
    tx_log(TX_LOG_INFO, "[ST_OL_0002] 접수완료 key=%s 당일건수=%ld 당일합=%ld",
           key, daycnt, daysum);
    tx_return(ctx, TX_OK, ctx->out);
}
