/* @tier easy @module vl @transform validation-online */
/*
 * vl_ol_0005.pgc - 가맹점 유효성 검증 서비스 (VL_OL_0005)
 *
 * 원장(vl_rec_select) 에서 처리 대상의 가맹점번호를 얻은 뒤, 가맹점 마스터
 * (mm_merchant) 의 계약상태/계약만료일을 조회한다. 상태가 정상('A') 이 아니거나
 * 계약이 만료(만료일 < 오늘) 되었으면 불일치(VL05xx) 로 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_0005, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_merch[16];
    char h_status[2];
    char h_contract_end[9];
    EXEC SQL END DECLARE SECTION;

    vl_rec_t rec;
    char key[16];
    char today[9];
    int  rc;

    tx_log(TX_LOG_INFO, "[VL_OL_0005] 가맹점 유효성 검증 서비스 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0005] KEY 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "VL0500");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    /* 1) 원장 조회로 가맹점번호 확보 */
    memset(&rec, 0, sizeof(rec));
    rc = vl_rec_select(key, &rec);
    if (rc != TX_OK) {
        tx_log(TX_LOG_WARN, "[VL_OL_0005] 원장 조회 실패 key=%s rc=%d", key, rc);
        tx_buf_sets(ctx->out, "ERRCODE", "VL0501");
        tx_return(ctx, rc, ctx->out);
        return;
    }

    /* 2) 가맹점 마스터 상태/만료일 조회 */
    strncpy(h_merch, rec.merch_id, sizeof(h_merch) - 1);
    h_merch[sizeof(h_merch) - 1] = '\0';
    memset(h_status, 0, sizeof(h_status));
    memset(h_contract_end, 0, sizeof(h_contract_end));

    EXEC SQL SELECT merch_status, contract_end
          INTO :h_status, :h_contract_end
          FROM mm_merchant
         WHERE merch_id = :h_merch;

    if (sqlca.sqlcode == TX_SQL_NOTFOUND) {
        tx_log(TX_LOG_WARN, "[VL_OL_0005] 미등록 가맹점 merch=%s", rec.merch_id);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL0502");
        tx_return(ctx, TX_ENOENT, ctx->out);
        return;
    }
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("SELECT mm_merchant");
        tx_buf_sets(ctx->out, "ERRCODE", "VL0509");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    /* 3) 상태/만료 판정 */
    date_today(today);
    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, "MSTATUS", h_status);
    tx_buf_sets(ctx->out, "CONTRACTEND", h_contract_end);

    if (memcmp(h_status, "A", 1) != 0) {
        tx_log(TX_LOG_WARN, "[VL_OL_0005] 가맹점 상태 비정상 merch=%s status=%s",
               rec.merch_id, h_status);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL0503");
        tx_return(ctx, TX_OK, ctx->out);
        return;
    }
    if (strcmp(h_contract_end, today) < 0) {
        tx_log(TX_LOG_WARN, "[VL_OL_0005] 계약 만료 merch=%s end=%s today=%s",
               rec.merch_id, h_contract_end, today);
        tx_buf_sets(ctx->out, "RESULT", "MISMATCH");
        tx_buf_sets(ctx->out, "ERRCODE", "VL0504");
        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_0005] 가맹점 유효 merch=%s", rec.merch_id);
    tx_return(ctx, TX_OK, ctx->out);
}