/* 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/lg_ol_0021.pgc"
/* @tier easy @module lg @transform ledger-online */
/*
 * lg_ol_0021.pgc - 원장 온라인 서비스 (LG_OL_0021)  [tier=easy]
 *
 * 복식 전표생성: 하나의 거래에 대해 차변행(음수)과 대변행(양수) 두 행을
 * 한 트랜잭션으로 INSERT 하고, 두 행 금액 합(Σ=0) 균형검증 결과를 응답한다.
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "lg_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/lg_ol_0021.pgc"


TX_SERVICE(LG_OL_0021, ctx)
{
    /* exec sql begin declare section */
     
     
     
     
     
     
     
    
#line 21 "app/online/lg_ol_0021.pgc"
 char h_key_dr [ 16 ] ;
 
#line 22 "app/online/lg_ol_0021.pgc"
 char h_key_cr [ 16 ] ;
 
#line 23 "app/online/lg_ol_0021.pgc"
 char h_merch_id [ 16 ] ;
 
#line 24 "app/online/lg_ol_0021.pgc"
 char h_biz_date [ 9 ] ;
 
#line 25 "app/online/lg_ol_0021.pgc"
 char h_status [ 2 ] ;
 
#line 26 "app/online/lg_ol_0021.pgc"
 long h_debit ;
 
#line 27 "app/online/lg_ol_0021.pgc"
 long h_credit ;
/* exec sql end declare section */
#line 28 "app/online/lg_ol_0021.pgc"


    char key[16], merch[16], bizdate[16];
    long amount = 0;
    long balance;

    tx_log(TX_LOG_INFO, "[LG_OL_0021] 복식 전표생성 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK ||
        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, "[LG_OL_0021] 필수 필드 누락");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    tx_buf_getlong(ctx->in, "AMOUNT", &amount);

    if (!amount_is_valid(amount) || !date_is_valid(bizdate)) {
        tx_log(TX_LOG_WARN, "[LG_OL_0021] 입력 검증 실패 amount=%ld date=%s",
               amount, bizdate);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* 차변/대변 처리키 파생 (원거래키 + 접미) */
    snprintf(h_key_dr, sizeof(h_key_dr), "%.13sDR", key);
    snprintf(h_key_cr, sizeof(h_key_cr), "%.13sCR", key);
    strncpy(h_merch_id, merch, sizeof(h_merch_id) - 1);
    h_merch_id[sizeof(h_merch_id) - 1] = '\0';
    strncpy(h_biz_date, bizdate, sizeof(h_biz_date) - 1);
    h_biz_date[sizeof(h_biz_date) - 1] = '\0';
    strncpy(h_status, LG_ST_RECV, sizeof(h_status) - 1);
    h_status[sizeof(h_status) - 1] = '\0';
    h_debit  = -amount;   /* 차변: 음수 */
    h_credit =  amount;   /* 대변: 양수 */

    if (tx_begin() != TX_OK) {
        tx_return(ctx, TX_FAIL, ctx->out);
        return;
    }

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "insert into lg_ledger ( key , merch_id , card_no , amount , biz_date , status , fee ) values ( $1  , $2  , '' , $3  , $4  , $5  , 0 )", 
	ECPGt_char,(h_key_dr),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_merch_id),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_long,&(h_debit),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_biz_date),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_status),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);}
#line 76 "app/online/lg_ol_0021.pgc"

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_ol_0021 debit insert");
        tx_abort();
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "insert into lg_ledger ( key , merch_id , card_no , amount , biz_date , status , fee ) values ( $1  , $2  , '' , $3  , $4  , $5  , 0 )", 
	ECPGt_char,(h_key_cr),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_merch_id),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_long,&(h_credit),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_biz_date),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_status),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);}
#line 89 "app/online/lg_ol_0021.pgc"

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_ol_0021 credit insert");
        tx_abort();
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 복식부기 균형검증: 차변 + 대변 = 0 */
    balance = h_debit + h_credit;
    if (balance != 0) {
        tx_log(TX_LOG_ERROR, "[LG_OL_0021] 균형검증 실패 balance=%ld", balance);
        tx_abort();
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_FAIL, ctx->out);
        return;
    }

    if (tx_commit() != TX_OK) {
        tx_abort();
        tx_return(ctx, TX_FAIL, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "KEYDR", h_key_dr);
    tx_buf_sets(ctx->out, "KEYCR", h_key_cr);
    tx_buf_setlong(ctx->out, "DEBIT", h_debit);
    tx_buf_setlong(ctx->out, "CREDIT", h_credit);
    tx_buf_setlong(ctx->out, "BALANCE", balance);
    tx_log(TX_LOG_INFO, "[LG_OL_0021] 복식전표 생성완료 key=%s 균형=%ld", key, balance);
    tx_return(ctx, TX_OK, ctx->out);
}
