/* @tier hard @module st @transform settlement-online */
/*
 * st_ol_0024.pgc - 정산 리포트 헤더 생성 (ST_OL_0024)  [tier=hard]
 *
 * 지정 영업일의 정산 리포트 헤더(총건수/총매출/총수수료/총순액)를
 * 집계 구성한다. 총건수/총매출/실제수수료는 원장(st_ledger) 단일 집계
 * SQL 로 산출하고, 표준요율 추정 수수료와 병기한다.
 */
#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;


static long st_fee_round(long amount, long rate_bp)
{
    /* 요율(만분율, basis point) x 금액 -> 원단위 반올림 (BigDecimal HALF_UP 대응) */
    if (amount < 0)
        return -(((-amount) * rate_bp + 5000) / 10000);
    return (amount * rate_bp + 5000) / 10000;
}

TX_SERVICE(ST_OL_0024, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[9];
    long h_total;
    long h_sum;
    long h_fee;
    EXEC SQL END DECLARE SECTION;

    char bizdate[16];
    long total = 0, sum = 0, actual_fee = 0, std_bp = 0, est_fee, net;

    tx_log(TX_LOG_INFO, "[ST_OL_0024] 정산 리포트 헤더 생성 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;
    }
    tx_buf_getlong(ctx->in, "STDBP", &std_bp);
    if (std_bp <= 0) std_bp = 180;

    strncpy(h_bizdate, bizdate, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';
    h_total = h_sum = h_fee = 0;

    EXEC SQL SELECT count(*), coalesce(sum(amount), 0), coalesce(sum(fee), 0)
        INTO :h_total, :h_sum, :h_fee
        FROM st_ledger
        WHERE biz_date = :h_bizdate;

    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("SELECT 리포트집계");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }
    total      = h_total;
    sum        = h_sum;
    actual_fee = h_fee;

    est_fee = st_fee_round(sum, std_bp);
    net     = sum - est_fee;

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "REPORTID", bizdate);
    tx_buf_setlong(ctx->out, "TOTALCNT", total);
    tx_buf_setlong(ctx->out, "GROSSSUM", sum);
    tx_buf_setlong(ctx->out, "ACTUALFEE", actual_fee);
    tx_buf_setlong(ctx->out, "FEESUM", est_fee);
    tx_buf_setlong(ctx->out, "NETSUM", net);
    tx_log(TX_LOG_INFO, "[ST_OL_0024] 리포트 date=%s 건수=%ld 매출=%ld 추정수수료=%ld 실제수수료=%ld",
           bizdate, total, sum, est_fee, actual_fee);
    tx_return(ctx, TX_OK, ctx->out);
}