/* 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/rc_ol_0020.pgc"
/* @tier medium @module rc @transform reconciliation-online */
/*
 * rc_ol_0020.pgc - 부분대사 온라인 서비스 (RC_OL_0020)
 *
 * 접수건에 대해 부분매입액(PARTAMT) 을 반영하는 부분대사를 수행한다.
 *
 * [입력]
 *   KEY     - 처리키(승인/거래 번호)
 *   PARTAMT - 부분매입액(원)
 *
 * [처리 규칙]
 *   - PARTAMT 가 0 이하이거나 원장 거래금액을 초과하면 입력오류(TX_EINVAL).
 *   - PARTAMT == amount  → 전액대사 → 매입확정('M'), 잔여액 0, RESULT=FULL.
 *   - PARTAMT <  amount  → 부분대사 → 접수('R') 유지, 잔여액=amount-PARTAMT,
 *                          RESULT=PARTIAL. (남은 금액에 대한 추가 대사 필요)
 *
 * [응답]
 *   KEY / AMOUNT / PARTAMT / REMAIN(잔여액) / STATUS / RESULT
 *
 * 커서를 사용하지 않는 단건 처리 서비스이다.
 */
#include <stdio.h>
#include <string.h>

#include "txcore.h"
#include "acq_util.h"
#include "rc_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 29 "app/online/rc_ol_0020.pgc"


TX_SERVICE(RC_OL_0020, ctx)
{
    rc_rec_t rec;
    char key[16];
    long part_amt = 0;
    long remain = 0;
    int  rc;
    const char *new_st;
    const char *result;

    tx_log(TX_LOG_INFO, "[RC_OL_0020] 부분대사 서비스 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[RC_OL_0020] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (tx_buf_getlong(ctx->in, "PARTAMT", &part_amt) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[RC_OL_0020] PARTAMT(부분매입액) 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    tx_log(TX_LOG_INFO, "[RC_OL_0020] 부분대사 요청 key=%s 부분매입액=%ld",
           key, part_amt);

    memset(&rec, 0, sizeof(rec));
    rc = rc_rec_select(key, &rec);
    if (rc != TX_OK) {
        tx_log(TX_LOG_WARN, "[RC_OL_0020] 원장 조회 실패 key=%s rc=%d(%s)",
               key, rc, tx_strerror(rc));
        tx_return(ctx, rc, ctx->out);
        return;
    }

    tx_log(TX_LOG_INFO,
           "[RC_OL_0020] 원장 조회 key=%s 거래액=%ld 부분매입액=%ld 상태=%s",
           key, rec.amount, part_amt, rec.status);

    /* 업무검증: 부분매입액 범위 (0 < PARTAMT <= 거래금액) */
    if (part_amt <= 0) {
        tx_log(TX_LOG_WARN,
               "[RC_OL_0020] 부분매입액 0 이하 오류 key=%s partamt=%ld",
               key, part_amt);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (part_amt > rec.amount) {
        tx_log(TX_LOG_WARN,
               "[RC_OL_0020] 부분매입액 거래금액 초과 key=%s partamt=%ld amount=%ld",
               key, part_amt, rec.amount);
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    if (part_amt == rec.amount) {
        /* 전액대사 → 매입확정, 잔여액 없음 */
        new_st = RC_ST_DONE;
        result = "FULL";
        remain = 0;
        tx_log(TX_LOG_INFO,
               "[RC_OL_0020] 전액대사 key=%s amount=%ld", key, rec.amount);
    } else {
        /* 부분대사 → 접수 상태 유지, 잔여액 존재 */
        new_st = RC_ST_RECV;
        result = "PARTIAL";
        remain = rec.amount - part_amt;
        tx_log(TX_LOG_INFO,
               "[RC_OL_0020] 부분대사 key=%s 부분액=%ld 잔여액=%ld",
               key, part_amt, remain);
    }

    rc = rc_rec_update_status(key, new_st);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[RC_OL_0020] 상태전이 실패 key=%s rc=%d", key, rc);
        tx_return(ctx, rc, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "KEY", rec.key);
    tx_buf_setlong(ctx->out, "AMOUNT", rec.amount);
    tx_buf_setlong(ctx->out, "PARTAMT", part_amt);
    tx_buf_setlong(ctx->out, "REMAIN", remain);
    tx_buf_sets(ctx->out, "STATUS", new_st);
    tx_buf_sets(ctx->out, "RESULT", result);

    tx_log(TX_LOG_INFO,
           "[RC_OL_0020] 부분대사 완료 key=%s 결과=%s 잔여액=%ld 상태=%s",
           key, result, remain, new_st);
    tx_return(ctx, TX_OK, ctx->out);
}
