/* 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/ac_ol_0010.pgc"
/* @tier easy @module ac @transform acquire-online */
/*
 * ac_ol_0010.pgc - 매입 온라인 서비스 (AC_OL_0010)  [tier=easy]
 *
 * 매입 한도체크: 가맹점의 당일 누적매입액(미확정 제외)에 신규 매입금액을
 * 더해 merchant.limit_amt 를 넘는지 검사한다. 초과 시 TX_FAIL 로 거절한다.
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "ac_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 16 "app/online/ac_ol_0010.pgc"


TX_SERVICE(AC_OL_0010, ctx)
{
    /* exec sql begin declare section */
     
     
     
     
    
#line 21 "app/online/ac_ol_0010.pgc"
 char h_merch [ 16 ] ;
 
#line 22 "app/online/ac_ol_0010.pgc"
 char h_today [ 9 ] ;
 
#line 23 "app/online/ac_ol_0010.pgc"
 long h_limit ;
 
#line 24 "app/online/ac_ol_0010.pgc"
 long h_used ;
/* exec sql end declare section */
#line 25 "app/online/ac_ol_0010.pgc"


    char merch[16];
    char today[9];
    long amount = 0;
    long remain;
    int  over;

    tx_log(TX_LOG_INFO, "[AC_OL_0010] 매입 한도체크 서비스 진입");

    if (tx_buf_get(ctx->in, "MERCHID", merch, sizeof(merch)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[AC_OL_0010] MERCHID 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);

    if (merch[0] == '\0' || !amount_is_valid(amount)) {
        tx_log(TX_LOG_WARN, "[AC_OL_0010] 입력 검증 실패 merch=%s amount=%ld", merch, amount);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

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

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select limit_amt from merchant where merch_id = $1 ", 
	ECPGt_char,(h_merch),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, 
	ECPGt_long,&(h_limit),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 54 "app/online/ac_ol_0010.pgc"


    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[AC_OL_0010] 가맹점 없음 merch=%s", merch);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_NOMERCH);
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("AC_OL_0010 merchant select");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    date_today(today);
    strncpy(h_today, today, sizeof(h_today) - 1);
    h_today[sizeof(h_today) - 1] = '\0';

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select coalesce ( sum ( amount ) , 0 ) from ac_ledger where merch_id = $1  and biz_date = $2  and status <> 'U'", 
	ECPGt_char,(h_merch),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_today),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, 
	ECPGt_long,&(h_used),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 78 "app/online/ac_ol_0010.pgc"


    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("AC_OL_0010 ac_ledger sum select");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    over = (h_used + amount > h_limit) ? 1 : 0;
    remain = h_limit - h_used - amount;
    if (remain < 0)
        remain = 0;

    tx_buf_reset(ctx->out);
    if (over) {
        tx_log(TX_LOG_WARN, "[AC_OL_0010] 한도초과 merch=%s used=%ld amount=%ld limit=%ld",
               merch, h_used, amount, h_limit);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_buf_setlong(ctx->out, "OVER", 1);
        tx_buf_setlong(ctx->out, "LIMIT", h_limit);
        tx_buf_setlong(ctx->out, "USED", h_used);
        tx_buf_setlong(ctx->out, "REMAIN", 0);
        tx_return(ctx, TX_FAIL, ctx->out);
        return;
    }

    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_setlong(ctx->out, "OVER", 0);
    tx_buf_setlong(ctx->out, "LIMIT", h_limit);
    tx_buf_setlong(ctx->out, "USED", h_used);
    tx_buf_setlong(ctx->out, "REMAIN", remain);
    tx_log(TX_LOG_INFO, "[AC_OL_0010] 한도체크 통과 merch=%s remain=%ld", merch, remain);
    tx_return(ctx, TX_OK, ctx->out);
}