/* @tier easy @module ac @transform acquire-online */
/*
 * ac_ol_0014.pgc - 매입 온라인 서비스 (AC_OL_0014)  [tier=easy]
 *
 * 가맹점별 매입집계: 지정 가맹점의 지정 영업일 처리완료(M) 매입 건에
 * 대해 건수/총매입금액/총수수료를 집계하고 순정산금액(총매입-총수수료)을
 * 함께 산출한다.
 */
#include <stdio.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

TX_SERVICE(AC_OL_0014, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_merch[16];
    char h_bizdate[9];
    char h_status[2];
    int  h_cnt;
    long h_totamt;
    long h_totfee;
    EXEC SQL END DECLARE SECTION;

    char merch[16];
    char bizdate[9];
    long net;

    tx_log(TX_LOG_INFO, "[AC_OL_0014] 가맹점별 매입집계 서비스 진입");

    if (tx_buf_get(ctx->in, "MERCHID", merch, sizeof(merch)) != TX_OK ||
        tx_buf_get(ctx->in, "BIZDATE", bizdate, sizeof(bizdate)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AC_OL_0014] 필수 필드 누락(MERCHID/BIZDATE)");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    if (merch[0] == '\0' || !date_is_valid(bizdate)) {
        tx_log(TX_LOG_WARN, "[AC_OL_0014] 입력 검증 실패 merch=%s date=%s", merch, bizdate);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    strncpy(h_merch, merch, sizeof(h_merch) - 1);
    h_merch[sizeof(h_merch) - 1] = '\0';
    strncpy(h_bizdate, bizdate, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';
    strncpy(h_status, AC_ST_DONE, sizeof(h_status) - 1);
    h_status[sizeof(h_status) - 1] = '\0';

    EXEC SQL SELECT count(*), coalesce(sum(amount), 0), coalesce(sum(fee), 0)
        INTO :h_cnt, :h_totamt, :h_totfee
        FROM ac_ledger
        WHERE merch_id = :h_merch
          AND biz_date = :h_bizdate
          AND status   = :h_status;

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("AC_OL_0014 ac_ledger 집계 select");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    net = h_totamt - h_totfee;

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "MERCHID", merch);
    tx_buf_sets(ctx->out, "BIZDATE", bizdate);
    tx_buf_setlong(ctx->out, "CNT", (long)h_cnt);
    tx_buf_setlong(ctx->out, "TOTAMT", h_totamt);
    tx_buf_setlong(ctx->out, "TOTFEE", h_totfee);
    tx_buf_setlong(ctx->out, "NET", net);
    tx_log(TX_LOG_INFO, "[AC_OL_0014] 집계완료 merch=%s date=%s cnt=%d totamt=%ld totfee=%ld net=%ld",
           merch, bizdate, h_cnt, h_totamt, h_totfee, net);
    tx_return(ctx, TX_OK, ctx->out);
}
