/* Processed by ecpg (15.18 (Debian 15.18-0+deb12u1)) */
/* These include files are added by the preprocessor */
#include <ecpglib.h>
#include <ecpgerrno.h>
#include <sqlca.h>
/* End of automatic include section */

#line 1 "app/online/st_ol_0004.pgc"
/* @tier hard @module st @transform settlement-online */
/*
 * st_ol_0004.pgc - VAN 수수료(건당 정액) 계산 (ST_OL_0004)  [tier=hard]
 *
 * 승인 건수에 VAN 건당 정액 수수료를 곱하여 총 VAN 수수료를 산출한다.
 * 정률 요소가 없는 건당 과금(전표/통신비) 모델.
 */
#include <stdio.h>
#include <string.h>

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


#line 1 "/usr/include/postgresql/sqlca.h"
#ifndef POSTGRES_SQLCA_H
#define POSTGRES_SQLCA_H

#ifndef PGDLLIMPORT
#if  defined(WIN32) || defined(__CYGWIN__)
#define PGDLLIMPORT __declspec (dllimport)
#else
#define PGDLLIMPORT
#endif							/* __CYGWIN__ */
#endif							/* PGDLLIMPORT */

#define SQLERRMC_LEN	150

#ifdef __cplusplus
extern "C"
{
#endif

struct sqlca_t
{
	char		sqlcaid[8];
	long		sqlabc;
	long		sqlcode;
	struct
	{
		int			sqlerrml;
		char		sqlerrmc[SQLERRMC_LEN];
	}			sqlerrm;
	char		sqlerrp[8];
	long		sqlerrd[6];
	/* Element 0: empty						*/
	/* 1: OID of processed tuple if applicable			*/
	/* 2: number of rows processed				*/
	/* after an INSERT, UPDATE or				*/
	/* DELETE statement					*/
	/* 3: empty						*/
	/* 4: empty						*/
	/* 5: empty						*/
	char		sqlwarn[8];
	/* Element 0: set to 'W' if at least one other is 'W'	*/
	/* 1: if 'W' at least one character string		*/
	/* value was truncated when it was			*/
	/* stored into a host variable.             */

	/*
	 * 2: if 'W' a (hopefully) non-fatal notice occurred
	 */	/* 3: empty */
	/* 4: empty						*/
	/* 5: empty						*/
	/* 6: empty						*/
	/* 7: empty						*/

	char		sqlstate[5];
};

struct sqlca_t *ECPGget_sqlca(void);

#ifndef POSTGRES_ECPG_INTERNAL
#define sqlca (*ECPGget_sqlca())
#endif

#ifdef __cplusplus
}
#endif

#endif

#line 15 "app/online/st_ol_0004.pgc"



TX_SERVICE(ST_OL_0004, ctx)
{
    char merch[16];
    long amount = 0, txn_cnt = 0, unit_fee = 0, van_fee, net;

    tx_log(TX_LOG_INFO, "[ST_OL_0004] VAN 건당정액 수수료 계산 진입");

    if (tx_buf_get(ctx->in, "MERCHID", merch, sizeof(merch)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);
    tx_buf_getlong(ctx->in, "TXNCNT", &txn_cnt);
    if (tx_buf_getlong(ctx->in, "UNITFEE", &unit_fee) != TX_OK || unit_fee <= 0)
        unit_fee = 120;                 /* VAN 건당 기본 정액 120원 */

    if (txn_cnt <= 0) {
        tx_log(TX_LOG_WARN, "[ST_OL_0004] 승인건수 오류 cnt=%ld", txn_cnt);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    van_fee = unit_fee * txn_cnt;
    net     = amount - van_fee;

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "MERCHID", merch);
    tx_buf_setlong(ctx->out, "TXNCNT", txn_cnt);
    tx_buf_setlong(ctx->out, "UNITFEE", unit_fee);
    tx_buf_setlong(ctx->out, "VANFEE", van_fee);
    tx_buf_setlong(ctx->out, "NET", net);
    tx_log(TX_LOG_INFO, "[ST_OL_0004] VAN 수수료 cnt=%ld unit=%ld total=%ld",
           txn_cnt, unit_fee, van_fee);
    tx_return(ctx, TX_OK, ctx->out);
}
