/* 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_0014.pgc"
/* @tier easy @module lg @transform ledger-online */
/*
 * lg_ol_0014.pgc - 원장 온라인 서비스 (LG_OL_0014)  [tier=easy]
 *
 * 원장 diff 검증: 두 영업일(D1, D2)의 원장 합계(Σamount)와 건수를
 * 각각 집계해 두 일자 간 금액 차이(DIFF = ΣD1 - ΣD2)와 건수 차이를
 * 산출한다. 증감 방향(TREND: UP/DOWN/FLAT)과 차액의 원화 표기를
 * 함께 응답한다. 전일 대비 증감이나 두 마감 스냅샷 간 편차를 확인
 * 하는 조회 전용 서비스이다.
 *
 * TxCore TX_SERVICE 엔트리. 요청 TXBUF 를 검증하고 lg_ledger 에
 * 직접 임베디드 SQL(SUM/COUNT) 을 두 번 수행한 뒤 응답을 구성한다.
 */
#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 22 "app/online/lg_ol_0014.pgc"


TX_SERVICE(LG_OL_0014, ctx)
{
    /* exec sql begin declare section */
     
     
      
     
      
    
#line 27 "app/online/lg_ol_0014.pgc"
 char h_biz_date [ 9 ] ;
 
#line 28 "app/online/lg_ol_0014.pgc"
 long h_sum1 ;
 
#line 29 "app/online/lg_ol_0014.pgc"
 int h_cnt1 ;
 
#line 30 "app/online/lg_ol_0014.pgc"
 long h_sum2 ;
 
#line 31 "app/online/lg_ol_0014.pgc"
 int h_cnt2 ;
/* exec sql end declare section */
#line 32 "app/online/lg_ol_0014.pgc"


    char d1[16], d2[16];
    char wonbuf[32];
    long diff = 0;
    long absdiff = 0;
    long cntdiff = 0;
    const char *trend;

    tx_log(TX_LOG_INFO, "[LG_OL_0014] 원장 diff 검증 서비스 진입");

    /* ---- 1. 요청 필드 수신 및 검증 ---- */
    if (tx_buf_get(ctx->in, "D1", d1, sizeof(d1)) != TX_OK ||
        tx_buf_get(ctx->in, "D2", d2, sizeof(d2)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[LG_OL_0014] D1/D2 누락");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (!date_is_valid(d1) || !date_is_valid(d2)) {
        tx_log(TX_LOG_WARN, "[LG_OL_0014] 영업일 오류 d1=%s d2=%s", d1, d2);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* ---- 2. D1 합계/건수 집계 ---- */
    strncpy(h_biz_date, d1, sizeof(h_biz_date) - 1);
    h_biz_date[sizeof(h_biz_date) - 1] = '\0';

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select coalesce ( sum ( amount ) , 0 ) , count ( * ) from lg_ledger where biz_date = $1 ", 
	ECPGt_char,(h_biz_date),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, 
	ECPGt_long,&(h_sum1),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_int,&(h_cnt1),(long)1,(long)1,sizeof(int), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 67 "app/online/lg_ol_0014.pgc"


    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("LG_OL_0014 sum-d1");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* ---- 3. D2 합계/건수 집계 ---- */
    strncpy(h_biz_date, d2, sizeof(h_biz_date) - 1);
    h_biz_date[sizeof(h_biz_date) - 1] = '\0';

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select coalesce ( sum ( amount ) , 0 ) , count ( * ) from lg_ledger where biz_date = $1 ", 
	ECPGt_char,(h_biz_date),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, 
	ECPGt_long,&(h_sum2),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_int,&(h_cnt2),(long)1,(long)1,sizeof(int), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 84 "app/online/lg_ol_0014.pgc"


    if (sqlca.sqlcode != TX_SQL_OK && sqlca.sqlcode != TX_SQL_NOTFOUND) {
        TX_DBIO_LOG_ERR("LG_OL_0014 sum-d2");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* ---- 4. 차이/방향 산출 ---- */
    diff    = h_sum1 - h_sum2;
    absdiff = (diff < 0) ? -diff : diff;   /* 편차 절대값 */
    cntdiff = (long)h_cnt1 - (long)h_cnt2;
    trend   = (diff > 0) ? "UP" : (diff < 0) ? "DOWN" : "FLAT";
    amount_format_won(diff, wonbuf, sizeof(wonbuf));

    /* ---- 5. 응답 구성 ---- */
    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_sets(ctx->out, "D1", d1);
    tx_buf_sets(ctx->out, "D2", d2);
    tx_buf_setlong(ctx->out, "SUM1", h_sum1);
    tx_buf_setlong(ctx->out, "SUM2", h_sum2);
    tx_buf_setlong(ctx->out, "CNT1", (long)h_cnt1);
    tx_buf_setlong(ctx->out, "CNT2", (long)h_cnt2);
    tx_buf_setlong(ctx->out, "DIFF", diff);
    tx_buf_setlong(ctx->out, "ABSDIFF", absdiff);
    tx_buf_setlong(ctx->out, "CNTDIFF", cntdiff);
    tx_buf_sets(ctx->out, "DIFFWON", wonbuf);
    tx_buf_sets(ctx->out, "TREND", trend);
    tx_buf_sets(ctx->out, "MATCHED", (diff == 0) ? "Y" : "N");

    tx_log(TX_LOG_INFO,
           "[LG_OL_0014] diff 검증 d1=%s(%ld) d2=%s(%ld) 차이=%ld 방향=%s",
           d1, h_sum1, d2, h_sum2, diff, trend);
    tx_return(ctx, TX_OK, ctx->out);
}
