/* 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/batch/mm_bt_0005.pgc"
/* @tier medium @module mm @transform master-batch */
/*
 * mm_bt_0005.pgc - 가맹점 등급 재산정 배치 (MM_BT_0005)  [tier=medium]
 *
 * 가맹점별 최근 3개월 누적매출(mm_merchant_sales) 을 커서로 집계하며,
 * 매출 규모 기준으로 등급(A/B/C) 을 재산정한다. 등급이 변경된 가맹점은
 * 원장(mm_merchant) 을 UPDATE 하고 등급변경이력(mm_grade_hist) 을
 * 남긴다. 배치 main 엔트리 포함.
 *
 * 실행:  mm_bt_0005 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "mm_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 21 "app/batch/mm_bt_0005.pgc"


/* 등급 기준(원): A >= 3억, B >= 5천만, 그 외 C */
#define MM_GRADE_A_MIN  300000000L
#define MM_GRADE_B_MIN   50000000L

static int run_mm_bt_0005(const char *biz_date)
{
    /* exec sql begin declare section */
     
     
     
     
     
    
#line 30 "app/batch/mm_bt_0005.pgc"
 char h_biz_date [ 9 ] ;
 
#line 31 "app/batch/mm_bt_0005.pgc"
 char h_merch_id [ 16 ] ;
 
#line 32 "app/batch/mm_bt_0005.pgc"
 char h_old_grade [ 2 ] ;
 
#line 33 "app/batch/mm_bt_0005.pgc"
 char h_new_grade [ 2 ] ;
 
#line 34 "app/batch/mm_bt_0005.pgc"
 long h_sale_sum ;
/* exec sql end declare section */
#line 35 "app/batch/mm_bt_0005.pgc"


    long total = 0, changed = 0, kept = 0, errcnt = 0;

    strncpy(h_biz_date, biz_date, sizeof(h_biz_date) - 1);
    h_biz_date[sizeof(h_biz_date) - 1] = '\0';

    /* 최근 3개월 매출을 가맹점 단위로 집계 */
    ECPGset_var( 0, ( h_biz_date ), __LINE__);\
 /* declare cur_mm_bt_0005 cursor for select s . merch_id , m . grade , SUM ( s . sale_amt ) from mm_merchant_sales s join mm_merchant m on m . merch_id = s . merch_id where s . sale_ym >= $1  and m . status = 'M' group by s . merch_id , m . grade order by s . merch_id */
#line 50 "app/batch/mm_bt_0005.pgc"

#line 50 "app/batch/mm_bt_0005.pgc"


    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "declare cur_mm_bt_0005 cursor for select s . merch_id , m . grade , SUM ( s . sale_amt ) from mm_merchant_sales s join mm_merchant m on m . merch_id = s . merch_id where s . sale_ym >= $1  and m . status = 'M' group by s . merch_id , m . grade order by s . merch_id", 
	ECPGt_char,(h_biz_date),(long)9,(long)1,(9)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);}
#line 52 "app/batch/mm_bt_0005.pgc"

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("OPEN cur_mm_bt_0005");
        return TX_EDB;
    }

    if (tx_begin() != TX_OK)
        tx_log(TX_LOG_WARN, "[mm_bt_0005] tx_begin 경고");

    for (;;) {
        { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "fetch cur_mm_bt_0005", ECPGt_EOIT, 
	ECPGt_char,(h_merch_id),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_old_grade),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_long,&(h_sale_sum),(long)1,(long)1,sizeof(long), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);}
#line 63 "app/batch/mm_bt_0005.pgc"


        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("FETCH cur_mm_bt_0005");
            errcnt++;
            break;
        }

        total++;

        /* 매출 규모 → 신규 등급 */
        if (h_sale_sum >= MM_GRADE_A_MIN)
            strncpy(h_new_grade, "A", sizeof(h_new_grade));
        else if (h_sale_sum >= MM_GRADE_B_MIN)
            strncpy(h_new_grade, "B", sizeof(h_new_grade));
        else
            strncpy(h_new_grade, "C", sizeof(h_new_grade));

        if (strcmp(h_new_grade, h_old_grade) == 0) {
            kept++;
            continue;
        }

        { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "update mm_merchant set grade = $1  , grade_date = $2  where merch_id = $3 ", 
	ECPGt_char,(h_new_grade),(long)2,(long)1,(2)*sizeof(char), 
	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_merch_id),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);}
#line 91 "app/batch/mm_bt_0005.pgc"

        if (sqlca.sqlcode != TX_SQL_OK) {
            tx_log(TX_LOG_ERROR,
                   "[mm_bt_0005] 등급갱신 실패 merch=%s", h_merch_id);
            errcnt++;
            continue;
        }

        { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "insert into mm_grade_hist ( merch_id , old_grade , new_grade , sale_sum , chg_date ) values ( $1  , $2  , $3  , $4  , $5  )", 
	ECPGt_char,(h_merch_id),(long)16,(long)1,(16)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_old_grade),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_char,(h_new_grade),(long)2,(long)1,(2)*sizeof(char), 
	ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, 
	ECPGt_long,&(h_sale_sum),(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_EOIT, ECPGt_EORT);}
#line 102 "app/batch/mm_bt_0005.pgc"


        changed++;
    }

    { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "close cur_mm_bt_0005", ECPGt_EOIT, ECPGt_EORT);}
#line 107 "app/batch/mm_bt_0005.pgc"


    if (errcnt == 0)
        tx_commit();
    else
        tx_abort();

    tx_log(TX_LOG_INFO,
           "[mm_bt_0005] 요약 date=%s 대상=%ld 변경=%ld 유지=%ld 오류=%ld",
           biz_date, total, changed, kept, errcnt);

    printf("========== 가맹점 등급 재산정 [mm_bt_0005] ==========\n");
    printf("  기준일       : %s\n", biz_date);
    printf("  평가 대상    : %ld\n", total);
    printf("  등급 변경    : %ld\n", changed);
    printf("  등급 유지    : %ld\n", kept);
    printf("  오류 건수    : %ld\n", errcnt);
    printf("==================================================\n");

    return (errcnt == 0) ? TX_OK : TX_FAIL;
}

int main(int argc, char **argv)
{
    const char *biz_date;
    const char *target;
    int rc;

    tx_set_loglevel(TX_LOG_INFO);

    if (argc < 2) {
        fprintf(stderr, "사용법: %s <YYYYMMDD> [db@host]\n", argv[0]);
        return 2;
    }
    biz_date = argv[1];
    target   = (argc >= 3) ? argv[2] : NULL;

    if (!date_is_valid(biz_date)) {
        fprintf(stderr, "오류: 유효하지 않은 기준일 '%s'\n", biz_date);
        return 2;
    }

    tx_log(TX_LOG_INFO, "[mm_bt_0005] 배치 시작 date=%s", biz_date);

    rc = mm_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[mm_bt_0005] DB 접속 실패 rc=%d", rc);
        return 1;
    }

    rc = run_mm_bt_0005(biz_date);

    mm_dbio_disconnect();

    tx_log(TX_LOG_INFO, "[mm_bt_0005] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}
