/* @tier easy @module st @transform settlement-online */
/*
 * st_ol_0014.pgc - 일자별 정산 집계 조회 (ST_OL_0014)  [tier=easy]
 *
 * 지정 영업일의 상태별 건수(R/M/S/U)와 총 거래금액을 집계하여
 * 정산 진행 현황(처리율)을 응답한다. 상태별 건수를 단일 임베디드
 * 집계 SQL(FILTER)로 한 번에 산출한다.
 */
#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_0014, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[9];
    long h_recv;
    long h_done;
    long h_settled;
    long h_fail;
    long h_sum;
    EXEC SQL END DECLARE SECTION;

    char bizdate[16];
    long c_recv, c_done, c_settled, c_fail, total = 0, sum = 0;

    tx_log(TX_LOG_INFO, "[ST_OL_0014] 일자별 정산 집계 조회 진입");

    if (tx_buf_get(ctx->in, "BIZDATE", bizdate, sizeof(bizdate)) != TX_OK ||
        !date_is_valid(bizdate)) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    strncpy(h_bizdate, bizdate, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';
    h_recv = h_done = h_settled = h_fail = h_sum = 0;

    EXEC SQL SELECT
            count(*) filter (where status = 'R'),
            count(*) filter (where status = 'M'),
            count(*) filter (where status = 'S'),
            count(*) filter (where status = 'U'),
            coalesce(sum(amount), 0)
        INTO :h_recv, :h_done, :h_settled, :h_fail, :h_sum
        FROM st_ledger
        WHERE biz_date = :h_bizdate;

    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("SELECT 일자별집계");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    c_recv    = h_recv;
    c_done    = h_done;
    c_settled = h_settled;
    c_fail    = h_fail;
    sum       = h_sum;
    total     = c_recv + c_done + c_settled + c_fail;

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "BIZDATE", bizdate);
    tx_buf_setlong(ctx->out, "CRECV", c_recv);
    tx_buf_setlong(ctx->out, "CDONE", c_done);
    tx_buf_setlong(ctx->out, "CSETTLED", c_settled);
    tx_buf_setlong(ctx->out, "CFAIL", c_fail);
    tx_buf_setlong(ctx->out, "TOTALCNT", total);
    tx_buf_setlong(ctx->out, "SUMAMT", sum);
    tx_log(TX_LOG_INFO, "[ST_OL_0014] 집계 date=%s 총=%ld 완료=%ld 정산=%ld",
           bizdate, total, c_done, c_settled);
    tx_return(ctx, TX_OK, ctx->out);
}
