/* 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_0018.pgc"
/* @tier medium @module lg @transform ledger-online */
/*
 * lg_ol_0018.pgc - 원장 온라인 서비스 (LG_OL_0018)  [tier=medium]
 *
 * 승인취소 반영: 원거래 key 를 조회하여 취소 가능한 상태인지 확인한 뒤
 * 상태를 불일치/취소(U) 로 UPDATE 하고, 취소된 원거래 금액을 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_0018.pgc"


/*
 * [업무 개요]
 *   앞서 접수/처리된 원거래 승인을 취소한다. 원거래 key 를 조회하여 취소가
 *   가능한 상태인지 확인한 뒤 상태를 불일치/취소(U) 로 전환하고, 취소된
 *   원거래 금액을 반환한다.
 *
 * [취소 가능 판정]
 *   이미 취소(U) 또는 정산완료(S) 인 전표는 취소 불가(RESP_INVALID).
 *   접수(R)/처리완료(M) 전표만 취소 대상으로 허용한다.
 *
 * [처리 절차]
 *   1) KEY 추출/검증.
 *   2) 단건 SELECT 로 amount, 현재 status 확보(없으면 RESP_NOMERCH).
 *   3) 취소 가능 상태 검증.
 *   4) tx_begin 후 status='U' 로 UPDATE, tx_commit.
 *
 * [응답 필드]
 *   RESPCODE  처리결과코드   KEY 처리키(에코)
 *   CANCELAMT 취소금액        CANCELWON 취소금액 원화표기   STATUS 취소후 상태(U)
 */
TX_SERVICE(LG_OL_0018, ctx)
{
    /* exec sql begin declare section */
     
     
     
     
    
#line 41 "app/online/lg_ol_0018.pgc"
 char h_key [ 16 ] ;
 
#line 42 "app/online/lg_ol_0018.pgc"
 char h_status_u [ 2 ] ;
 
#line 43 "app/online/lg_ol_0018.pgc"
 char h_cur_status [ 2 ] ;
 
#line 44 "app/online/lg_ol_0018.pgc"
 long h_amount ;
/* exec sql end declare section */
#line 45 "app/online/lg_ol_0018.pgc"


    char key[16];
    char wonbuf[32];

    tx_log(TX_LOG_INFO, "[LG_OL_0018] 승인취소 반영 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK || key[0] == '\0') {
        tx_log(TX_LOG_ERROR, "[LG_OL_0018] KEY 누락");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    strncpy(h_key, key, sizeof(h_key) - 1);
    h_key[sizeof(h_key) - 1] = '\0';
    strncpy(h_status_u, LG_ST_FAIL, sizeof(h_status_u) - 1);
    h_status_u[sizeof(h_status_u) - 1] = '\0';

    /* 원거래 조회 (단건 PK) */
    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select amount , status from lg_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_char,(h_cur_status),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 69 "app/online/lg_ol_0018.pgc"


    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[LG_OL_0018] 원거래 없음 key=%s", key);
        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("lg_ol_0018 select");
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 이미 취소(U)/정산(S) 상태면 취소 불가 */
    if (h_cur_status[0] == LG_ST_FAIL[0] || h_cur_status[0] == LG_ST_SETTLED[0]) {
        tx_log(TX_LOG_WARN, "[LG_OL_0018] 취소 불가 상태 key=%s status=%s",
               key, h_cur_status);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID);
        tx_buf_sets(ctx->out, "STATUS", h_cur_status);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

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

    /* 취소플래그성 처리: 상태를 U 로 전환 (취소 반영) */
    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "update lg_ledger set status = $1  , upd_ts = now ( ) where key = $2 ", 
	ECPGt_char,(h_status_u),(long)2,(long)1,(2)*sizeof(char), 
	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 105 "app/online/lg_ol_0018.pgc"


    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("lg_ol_0018 update");
        tx_abort();
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR);
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }
    if (sqlca.sqlerrd[2] == 0) {
        tx_log(TX_LOG_WARN, "[LG_OL_0018] 취소 대상 없음 key=%s", key);
        tx_abort();
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "RESPCODE", RESP_NOMERCH);
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }

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

    amount_format_won(h_amount, wonbuf, sizeof(wonbuf));
    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, "CANCELAMT", h_amount);
    tx_buf_sets(ctx->out, "CANCELWON", wonbuf);
    tx_buf_sets(ctx->out, "STATUS", LG_ST_FAIL);
    tx_log(TX_LOG_INFO, "[LG_OL_0018] 승인취소 완료 key=%s 취소금액=%ld", key, h_amount);
    tx_return(ctx, TX_OK, ctx->out);
}
