/* @tier hard @module vl @transform validation-online */
/*
 * vl_ol_0026.pgc - 금액합계 검증 서비스 (VL_OL_0026)  [tier=hard]
 *
 * 영업일 원장합계(SUM vl_ledger) 와 일집계 테이블(vl_daily_agg.total_amt)
 * 의 합계를 대사하여 차액 및 건수 불일치를 판정한다.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "vl_core.h"

EXEC SQL INCLUDE sqlca;

TX_SERVICE(VL_OL_0026, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_bizdate[9];
    long h_ledger_sum;
    long h_ledger_cnt;
    long h_agg_amt;
    long h_agg_cnt;
    EXEC SQL END DECLARE SECTION;

    char bizdate[16];
    long diff_amt, diff_cnt;
    int  mismatch = 0;

    tx_log(TX_LOG_INFO, "[VL_OL_0026] 금액합계 검증 서비스 진입");

    if (tx_buf_get(ctx->in, "BIZDATE", bizdate, sizeof(bizdate)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0026] 영업일(BIZDATE) 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "VL2600");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (!date_is_valid(bizdate)) {
        tx_log(TX_LOG_WARN, "[VL_OL_0026] 영업일 형식 오류 date=%s", bizdate);
        tx_buf_sets(ctx->out, "ERRCODE", "VL2601");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    strncpy(h_bizdate, bizdate, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';

    /* 원장 상세 합계 */
    h_ledger_sum = 0;
    h_ledger_cnt = 0;
    EXEC SQL SELECT COALESCE(SUM(amount), 0), COUNT(*)
          INTO :h_ledger_sum, :h_ledger_cnt
          FROM vl_ledger
         WHERE biz_date = :h_bizdate;

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("SELECT SUM vl_ledger");
        tx_buf_sets(ctx->out, "ERRCODE", "VL2608");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 일집계 테이블 값 */
    h_agg_amt = 0;
    h_agg_cnt = 0;
    EXEC SQL SELECT total_amt, total_cnt
          INTO :h_agg_amt, :h_agg_cnt
          FROM vl_daily_agg
         WHERE biz_date = :h_bizdate;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[VL_OL_0026] 일집계 미생성 date=%s", bizdate);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "BIZDATE", bizdate);
        tx_buf_setlong(ctx->out, "LEDGERSUM", h_ledger_sum);
        tx_buf_setlong(ctx->out, "LEDGERCNT", h_ledger_cnt);
        tx_buf_sets(ctx->out, "RESULT", "NOAGG");
        tx_buf_sets(ctx->out, "ERRCODE", "VL2602");
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("SELECT vl_daily_agg");
        tx_buf_sets(ctx->out, "ERRCODE", "VL2609");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    diff_amt = h_ledger_sum - h_agg_amt;
    diff_cnt = h_ledger_cnt - h_agg_cnt;
    if (diff_amt != 0 || diff_cnt != 0) {
        mismatch = 1;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "BIZDATE", bizdate);
    tx_buf_setlong(ctx->out, "LEDGERSUM", h_ledger_sum);
    tx_buf_setlong(ctx->out, "LEDGERCNT", h_ledger_cnt);
    tx_buf_setlong(ctx->out, "AGGAMT", h_agg_amt);
    tx_buf_setlong(ctx->out, "AGGCNT", h_agg_cnt);
    tx_buf_setlong(ctx->out, "DIFFAMT", diff_amt);
    tx_buf_setlong(ctx->out, "DIFFCNT", diff_cnt);

    if (mismatch) {
        tx_log(TX_LOG_WARN,
               "[VL_OL_0026] 합계 불일치 date=%s diffAmt=%ld diffCnt=%ld",
               bizdate, diff_amt, diff_cnt);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL2603");
        tx_return(ctx, TX_OK, ctx->out);
        return;
    }

    tx_buf_sets(ctx->out, "RESULT", "MATCH");
    tx_buf_sets(ctx->out, "ERRCODE", RESP_OK);
    tx_log(TX_LOG_INFO, "[VL_OL_0026] 합계 정합 date=%s sum=%ld cnt=%ld",
           bizdate, h_ledger_sum, h_ledger_cnt);
    tx_return(ctx, TX_OK, ctx->out);
}