/* 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_0030.pgc"
/* @tier easy @module st @transform settlement-online */
/*
 * st_ol_0030.pgc - 정산 통화환산(원화) (ST_OL_0030)  [tier=easy]
 *
 * 외화 매출을 적용환율(1e4 스케일)로 원화 환산한다. 원화 환산액은
 * 원단위 미만을 절사하고, 수수료는 환산 후 원화 기준으로 산출한다.
 */
#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_0030.pgc"



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_0030, ctx)
{
    char merch[16], cur[4];
    long fx_amount = 0, rate = 0, fee_bp = 0, krw, fee, net;

    tx_log(TX_LOG_INFO, "[ST_OL_0030] 정산 통화환산 진입");

    if (tx_buf_get(ctx->in, "MERCHID", merch, sizeof(merch)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (tx_buf_get(ctx->in, "CUR", cur, sizeof(cur)) != TX_OK)
        strncpy(cur, "USD", sizeof(cur) - 1);
    tx_buf_getlong(ctx->in, "FXAMT", &fx_amount);   /* 외화 최소단위 */
    tx_buf_getlong(ctx->in, "RATE", &rate);         /* 환율 x 10000 */
    tx_buf_getlong(ctx->in, "FEEBP", &fee_bp);
    if (fee_bp <= 0) fee_bp = 200;                  /* 2% */

    if (fx_amount <= 0 || rate <= 0) {
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    krw = fx_amount * rate / 10000;     /* 원단위 미만 절사 */
    fee = st_fee_round(krw, fee_bp);
    net = krw - fee;

    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, "CUR", cur);
    tx_buf_setlong(ctx->out, "KRW", krw);
    tx_buf_setlong(ctx->out, "FEE", fee);
    tx_buf_setlong(ctx->out, "NET", net);
    tx_log(TX_LOG_INFO, "[ST_OL_0030] 환산 %s fx=%ld rate=%ld krw=%ld net=%ld",
           cur, fx_amount, rate, krw, net);
    tx_return(ctx, TX_OK, ctx->out);
}
