/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.elasticsearch.repositories.azure;

import com.microsoft.azure.storage.LocationMode;
import com.microsoft.azure.storage.StorageException;
import org.elasticsearch.action.admin.cluster.repositories.put.PutRepositoryResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cloud.azure.AbstractAzureWithThirdPartyIntegTestCase;
import org.elasticsearch.cloud.azure.storage.AzureStorageService;
import org.elasticsearch.cloud.azure.storage.AzureStorageServiceImpl;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.repositories.azure.AzureRepository.Repository;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
import org.junit.After;
import org.junit.Before;

import java.net.URISyntaxException;
import java.util.concurrent.TimeUnit;

import static org.elasticsearch.cloud.azure.AzureTestUtils.readSettingsFromFile;
import static org.elasticsearch.repositories.azure.AzureSnapshotRestoreTests.getContainerName;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.lessThanOrEqualTo;

/**
 * This test needs Azure to run and -Dtests.thirdparty=true to be set
 * and -Dtests.config=/path/to/elasticsearch.yml
 *
 * Note that this test requires an Azure storage account, with the account
 * and credentials set in the elasticsearch.yml config file passed in to the
 * test.  The Azure storage account type must be a Read-access geo-redundant
 * storage (RA-GRS) account.
 *
 * @see AbstractAzureWithThirdPartyIntegTestCase
 */
@ClusterScope(
        scope = ESIntegTestCase.Scope.SUITE,
        supportsDedicatedMasters = false, numDataNodes = 1,
        transportClientRatio = 0.0)
public class AzureSnapshotRestoreListSnapshotsTests extends AbstractAzureWithThirdPartyIntegTestCase {

    private final AzureStorageService azureStorageService = new AzureStorageServiceImpl(readSettingsFromFile());
    private final String containerName = getContainerName();

    public void testList() throws Exception {
        Client client = client();
        logger.info("-->  creating azure primary repository");
        PutRepositoryResponse putRepositoryResponsePrimary = client.admin().cluster().preparePutRepository("primary")
                .setType("azure").setSettings(Settings.builder()
                        .put(Repository.CONTAINER_SETTING.getKey(), containerName)
                ).get();
        assertThat(putRepositoryResponsePrimary.isAcknowledged(), equalTo(true));

        logger.info("--> start get snapshots on primary");
        long startWait = System.currentTimeMillis();
        client.admin().cluster().prepareGetSnapshots("primary").get();
        long endWait = System.currentTimeMillis();
        // definitely should be done in 30s, and if its not working as expected, it takes over 1m
        assertThat(endWait - startWait, lessThanOrEqualTo(30000L));

        logger.info("-->  creating azure secondary repository");
        PutRepositoryResponse putRepositoryResponseSecondary = client.admin().cluster().preparePutRepository("secondary")
                .setType("azure").setSettings(Settings.builder()
                    .put(Repository.CONTAINER_SETTING.getKey(), containerName)
                    .put(Repository.LOCATION_MODE_SETTING.getKey(), "secondary_only")
                ).get();
        assertThat(putRepositoryResponseSecondary.isAcknowledged(), equalTo(true));

        logger.info("--> start get snapshots on secondary");
        startWait = System.currentTimeMillis();
        client.admin().cluster().prepareGetSnapshots("secondary").get();
        endWait = System.currentTimeMillis();
        logger.info("--> end of get snapshots on secondary. Took {} ms", endWait - startWait);
        assertThat(endWait - startWait, lessThanOrEqualTo(30000L));
    }

    @Before
    public void createContainer() throws Exception {
        // It could happen that we run this test really close to a previous one
        // so we might need some time to be able to create the container
        assertBusy(() -> {
            try {
                azureStorageService.createContainer(null, LocationMode.PRIMARY_ONLY, containerName);
            } catch (URISyntaxException e) {
                // Incorrect URL. This should never happen.
                fail();
            } catch (StorageException e) {
                // It could happen. Let's wait for a while.
                fail();
            }
        }, 30, TimeUnit.SECONDS);
    }

    @After
    public void removeContainer() throws Exception {
        azureStorageService.removeContainer(null, LocationMode.PRIMARY_ONLY, containerName);
    }
}