// Copyright (C) 2024 The Android Open Source Project
//
// Licensed 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.

package com.google.gerrit.server.restapi.config;

import com.google.gerrit.extensions.restapi.ResourceNotFoundException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.index.Index;
import com.google.gerrit.index.IndexCollection;
import com.google.gerrit.server.config.IndexVersionResource;
import com.google.gerrit.server.restapi.config.IndexInfo.IndexVersionInfo;

public class GetIndexVersion implements RestReadView<IndexVersionResource> {

  @Override
  public Response<IndexVersionInfo> apply(IndexVersionResource rsrc)
      throws ResourceNotFoundException {
    IndexCollection<?, ?, ?> indexCollection = rsrc.getIndexDefinition().getIndexCollection();
    Index<?, ?> i = rsrc.getIndex();
    int version = i.getSchema().getVersion();
    boolean isSearch = indexCollection.getSearchIndex().getSchema().getVersion() == version;
    boolean isWrite = indexCollection.getWriteIndex(version) != null;
    return Response.ok(IndexInfo.IndexVersionInfo.create(isWrite, isSearch, i.numDocs()));
  }
}