/* @tier hard @module vl @transform validation-online */
/*
 * vl_ol_0015.pgc - 원장-집계 정합 검증 서비스 (VL_OL_0015)
 *
 * 원장 단건(vl_rec_select) 이 일자별 집계테이블(vl_daily_agg) 에 정상 반영되었는지
 * 대사한다. 집계행의 반영여부(applied_yn) 와 집계금액에 해당 건이 포함되었는지를
 * 확인하여, 미반영이거나 집계금액이 원장금액 미만이면 불일치(VL15xx).
 */
#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_0015, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_merch[16];
    char h_bizdate[9];
    char h_applied_yn[2];
    long h_agg_amount;
    long h_agg_cnt;
    EXEC SQL END DECLARE SECTION;

    vl_rec_t rec;
    char key[16];
    int  rc;

    tx_log(TX_LOG_INFO, "[VL_OL_0015] 원장-집계 정합 검증 서비스 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0015] KEY 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "VL1500");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* 1) 원장 단건 확보 */
    memset(&rec, 0, sizeof(rec));
    rc = vl_rec_select(key, &rec);
    if (rc != TX_OK) {
        tx_log(TX_LOG_WARN, "[VL_OL_0015] 원장 조회 실패 key=%s rc=%d", key, rc);
        tx_buf_sets(ctx->out, "ERRCODE", "VL1501");
        tx_return(ctx, rc, ctx->out);
        return;
    }

    /* 2) 집계행 조회 (가맹점 + 영업일) */
    strncpy(h_merch, rec.merch_id, sizeof(h_merch) - 1);
    h_merch[sizeof(h_merch) - 1] = '\0';
    strncpy(h_bizdate, rec.biz_date, sizeof(h_bizdate) - 1);
    h_bizdate[sizeof(h_bizdate) - 1] = '\0';
    memset(h_applied_yn, 0, sizeof(h_applied_yn));
    h_agg_amount = 0;
    h_agg_cnt = 0;

    EXEC SQL
        SELECT applied_yn, agg_amount, agg_count
          INTO :h_applied_yn, :h_agg_amount, :h_agg_cnt
          FROM vl_daily_agg
         WHERE biz_date = :h_bizdate
           AND merch_id = :h_merch;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[VL_OL_0015] 집계행 없음 merch=%s date=%s",
               rec.merch_id, rec.biz_date);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL1502");
        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", "VL1509");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 3) 반영여부 판정 */
    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "KEY", key);
    tx_buf_sets(ctx->out, "MERCHID", rec.merch_id);
    tx_buf_sets(ctx->out, "BIZDATE", rec.biz_date);
    tx_buf_setlong(ctx->out, "LEDGERAMT", rec.amount);
    tx_buf_sets(ctx->out, "APPLIEDYN", h_applied_yn);
    tx_buf_setlong(ctx->out, "AGGAMT", h_agg_amount);
    tx_buf_setlong(ctx->out, "AGGCNT", h_agg_cnt);

    if (memcmp(h_applied_yn, "Y", 1) != 0) {
        tx_log(TX_LOG_WARN, "[VL_OL_0015] 집계 미반영 key=%s applied=%s",
               key, h_applied_yn);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL1503");
        tx_return(ctx, TX_OK, ctx->out);
        return;
    }
    if (h_agg_amount < rec.amount || h_agg_cnt < 1) {
        tx_log(TX_LOG_WARN, "[VL_OL_0015] 집계금액 부족 key=%s agg=%ld ledger=%ld",
               key, h_agg_amount, rec.amount);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL1504");
        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_0015] 원장-집계 정합 key=%s agg=%ld", key, h_agg_amount);
    tx_return(ctx, TX_OK, ctx->out);
}
