add support for delete a notification

/* Nextcloud Android Library is available under MIT license

 *

 *   @author Tobias Kaminsky

 *   Copyright (C) 2019 Tobias Kaminsky

 *   Copyright (C) 2019 Nextcloud GmbH

 *

 *   Permission is hereby granted, free of charge, to any person obtaining a copy

 *   of this software and associated documentation files (the "Software"), to deal

 *   in the Software without restriction, including without limitation the rights

 *   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 *   copies of the Software, and to permit persons to whom the Software is

 *   furnished to do so, subject to the following conditions:

 *

 *   The above copyright notice and this permission notice shall be included in

 *   all copies or substantial portions of the Software.

 *

 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 *   BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 *   ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 *   CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

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 */

package com.owncloud.android.lib.resources.notifications;

import com.owncloud.android.lib.common.OwnCloudClient;

import com.owncloud.android.lib.common.operations.RemoteOperation;

import com.owncloud.android.lib.common.operations.RemoteOperationResult;

import com.owncloud.android.lib.common.utils.Log_OC;

import com.owncloud.android.lib.resources.status.OwnCloudVersion;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.jackrabbit.webdav.client.methods.DeleteMethod;

/**

 * Delete a notification, specified at

 * {@link "https://github.com/nextcloud/notifications/blob/master/docs/ocs-endpoint-v2.md"}.

 */

public class DeleteNotificationRemoteOperation extends RemoteOperation {

    // OCS Route

    private static final String OCS_ROUTE_LIST_V12_AND_UP =

            "/ocs/v2.php/apps/notifications/api/v2/notifications/";

    private static final String OCS_ROUTE_LIST_V9_AND_UP =

            "/ocs/v2.php/apps/notifications/api/v1/notifications/";

    private static final String TAG = DeleteNotificationRemoteOperation.class.getSimpleName();

    private int id;

    public DeleteNotificationRemoteOperation(int id) {

        this.id = id;

    }

    @Override

    protected RemoteOperationResult run(OwnCloudClient client) {

        RemoteOperationResult result;

        int status;

        DeleteMethod delete = null;

        String url;

        if (client.getOwnCloudVersion().compareTo(OwnCloudVersion.nextcloud_12) >= 0) {

            url = client.getBaseUri() + OCS_ROUTE_LIST_V12_AND_UP;

        } else {

            url = client.getBaseUri() + OCS_ROUTE_LIST_V9_AND_UP;

        }

        try {

            delete = new DeleteMethod(url + id);

            delete.addRequestHeader(OCS_API_HEADER, OCS_API_HEADER_VALUE);

            status = client.executeMethod(delete);

            String response = delete.getResponseBodyAsString();

            if (isSuccess(status)) {

                result = new RemoteOperationResult(true, status, delete.getResponseHeaders());

                Log_OC.d(TAG, "Successful response: " + response);

            } else {

                result = new RemoteOperationResult(false, status, delete.getResponseHeaders());

                Log_OC.e(TAG, "Failed response while getting user notifications ");

                if (response != null) {

                    Log_OC.e(TAG, "*** status code: " + status + " ; response message: " + response);

                } else {

                    Log_OC.e(TAG, "*** status code: " + status);

                }

            }

        } catch (Exception e) {

            result = new RemoteOperationResult(e);

            Log_OC.e(TAG, "Exception while getting remote notifications", e);

        } finally {

            if (delete != null) {

                delete.releaseConnection();

            }

        }

        return result;

    }

    private boolean isSuccess(int status) {

        return (status == HttpStatus.SC_OK);

    }

}