/**
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
 */
/**
 * @file RemapPlugin.cc
 */

#include "atscppapi/RemapPlugin.h"
#include "logging_internal.h"
#include "utils_internal.h"
#include <cassert>
#include <ts/remap.h>

using namespace atscppapi;

TSRemapStatus
TSRemapDoRemap(void *ih, TSHttpTxn rh, TSRemapRequestInfo *rri)
{
  RemapPlugin *remap_plugin = static_cast<RemapPlugin *>(ih);
  Url map_from_url(rri->requestBufp, rri->mapFromUrl), map_to_url(rri->requestBufp, rri->mapToUrl);
  Transaction &transaction   = utils::internal::getTransaction(rh);
  bool redirect              = false;
  RemapPlugin::Result result = remap_plugin->doRemap(map_from_url, map_to_url, transaction, redirect);
  rri->redirect              = redirect ? 1 : 0;
  switch (result) {
  case RemapPlugin::RESULT_ERROR:
    return TSREMAP_ERROR;
  case RemapPlugin::RESULT_NO_REMAP:
    return TSREMAP_NO_REMAP;
  case RemapPlugin::RESULT_DID_REMAP:
    return TSREMAP_DID_REMAP;
  case RemapPlugin::RESULT_NO_REMAP_STOP:
    return TSREMAP_NO_REMAP_STOP;
  case RemapPlugin::RESULT_DID_REMAP_STOP:
    return TSREMAP_DID_REMAP_STOP;
  default:
    assert(!"Unhandled result");
    return TSREMAP_ERROR;
  }
}

void
TSRemapDeleteInstance(void *ih)
{
  RemapPlugin *remap_plugin = static_cast<RemapPlugin *>(ih);
  delete remap_plugin;
}

TSReturnCode
TSRemapInit(TSRemapInterface *api_info, char *errbuf, int errbuf_size)
{
  return TS_SUCCESS;
}

RemapPlugin::RemapPlugin(void **instance_handle)
{
  utils::internal::initTransactionManagement();
  *instance_handle = static_cast<void *>(this);
}
