/* 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_0020.pgc"
/* @tier medium @module st @transform settlement-online */
/*
 * st_ol_0020.pgc - 정산 수수료 재계산 (ST_OL_0020)  [tier=medium]
 *
 * 원장 건을 조회하여 표준요율로 수수료를 재계산하고, 재계산 전/후
 * 수수료와 정산순액 변동분(delta)을 응답한다. APPLY=Y 이면 재계산
 * 수수료를 원장(st_ledger)에 임베디드 UPDATE 로 반영한다.
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.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 17 "app/online/st_ol_0020.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_0020, ctx)
{
    /* exec sql begin declare section */
     
     
     
     
     
    
#line 31 "app/online/st_ol_0020.pgc"
 char h_key [ 16 ] ;
 
#line 32 "app/online/st_ol_0020.pgc"
 long h_amount ;
 
#line 33 "app/online/st_ol_0020.pgc"
 long h_old_fee ;
 
#line 34 "app/online/st_ol_0020.pgc"
 long h_new_fee ;
 
#line 35 "app/online/st_ol_0020.pgc"
 long h_affected ;
/* exec sql end declare section */
#line 36 "app/online/st_ol_0020.pgc"


    char key[16], apply[4];
    long std_bp = 0, new_fee, delta, new_net;
    int  applied = 0;

    tx_log(TX_LOG_INFO, "[ST_OL_0020] 정산 재계산 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    tx_buf_getlong(ctx->in, "STDBP", &std_bp);
    if (std_bp <= 0) std_bp = 180;
    if (tx_buf_get(ctx->in, "APPLY", apply, sizeof(apply)) != TX_OK)
        strcpy(apply, "N");

    /* 원장 금액/기존 수수료 조회 */
    strncpy(h_key, key, sizeof(h_key) - 1);
    h_key[sizeof(h_key) - 1] = '\0';
    h_amount = 0;
    h_old_fee = 0;
    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select amount , fee from st_ledger where key = $1 ", 
	ECPGt_char,(h_key),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, 
	ECPGt_long,&(h_amount),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_long,&(h_old_fee),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 61 "app/online/st_ol_0020.pgc"


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

    new_fee = st_fee_round(h_amount, std_bp);
    delta   = new_fee - h_old_fee;
    new_net = h_amount - new_fee;

    /* APPLY=Y 이면 재계산 수수료 반영 */
    if (strcmp(apply, "Y") == 0 && delta != 0) {
        h_new_fee = new_fee;
        if (tx_begin() != TX_OK)
            tx_log(TX_LOG_WARN, "[ST_OL_0020] tx_begin 경고");
        { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "update st_ledger set fee = $1  , upd_ts = now ( ) where key = $2 ", 
	ECPGt_long,&(h_new_fee),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_key),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);}
#line 84 "app/online/st_ol_0020.pgc"

        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("UPDATE st_ledger 수수료반영");
            tx_abort();
            tx_return(ctx, TX_EDB, ctx->out);
            return;
        }
        h_affected = sqlca.sqlerrd[2];
        tx_commit();
        applied = (h_affected > 0);
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "KEY", key);
    tx_buf_setlong(ctx->out, "OLDFEE", h_old_fee);
    tx_buf_setlong(ctx->out, "NEWFEE", new_fee);
    tx_buf_setlong(ctx->out, "DELTA", delta);
    tx_buf_setlong(ctx->out, "NEWNET", new_net);
    tx_buf_sets(ctx->out, "APPLIED", applied ? "Y" : "N");
    tx_log(TX_LOG_INFO, "[ST_OL_0020] 재계산 key=%s old=%ld new=%ld delta=%ld apply=%s",
           key, h_old_fee, new_fee, delta, applied ? "Y" : "N");
    tx_return(ctx, TX_OK, ctx->out);
}
