/*
 * 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.
 *
 */

package org.apache.streampipes.connect.container.master.management;

import org.apache.streampipes.commons.exceptions.SpRuntimeException;
import org.apache.streampipes.connect.adapter.AdapterRegistry;
import org.apache.streampipes.connect.api.IFormat;
import org.apache.streampipes.connect.api.exception.AdapterException;
import org.apache.streampipes.model.connect.adapter.AdapterDescription;
import org.apache.streampipes.model.connect.grounding.FormatDescription;
import org.apache.streampipes.storage.api.IAdapterStorage;
import org.apache.streampipes.storage.couchdb.CouchDbStorageManager;
import org.apache.streampipes.storage.management.StorageDispatcher;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Optional;

public class DescriptionManagement {

    public List<FormatDescription> getFormats() {
        Map<String, IFormat> allFormats = AdapterRegistry.getAllFormats();

        List<FormatDescription> result = new ArrayList<>();
        for (IFormat f : allFormats.values()) {
           result.add(f.declareModel());
        }

        return result;
    }

    public List<AdapterDescription> getAdapters() {
        IAdapterStorage adapterStorage = CouchDbStorageManager.INSTANCE.getAdapterDescriptionStorage();
        return adapterStorage.getAllAdapters();
    }

    public Optional<AdapterDescription> getAdapter(String id) {
        return getAdapters().stream()
                .filter(desc -> desc.getAppId().equals(id))
                .findFirst();
    }

    public void deleteAdapterDescription(String id) throws SpRuntimeException {
        var adapterStorage = CouchDbStorageManager.INSTANCE.getAdapterDescriptionStorage();
        var adapter = adapterStorage.getAdapter(id);
        if (!isAdapterUsed(adapter)) {
            adapterStorage.deleteAdapter(id);
        } else {
            throw new SpRuntimeException("This adapter is used by an existing instance and cannot be deleted");
        }
    }
    public String getAssets(String baseUrl) throws AdapterException {
        return WorkerRestClient.getAssets(baseUrl);
    }

    public byte[] getIconAsset(String baseUrl) throws AdapterException {
        return WorkerRestClient.getIconAsset(baseUrl);
    }

    public String getDocumentationAsset(String baseUrl) throws AdapterException {
        return WorkerRestClient.getDocumentationAsset(baseUrl);
    }

    private boolean isAdapterUsed(AdapterDescription adapter) {
        var allAdapters = StorageDispatcher.INSTANCE.getNoSqlStore().getAdapterInstanceStorage().getAllAdapters();

        return allAdapters
          .stream()
          .anyMatch(runningAdapter -> runningAdapter.getAppId().equals(adapter.getAppId()));
    }

}
