/*
 * Copyright © 2020 AT&T and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.transportpce.renderer.provisiondevice.tasks;

import java.util.ArrayList;
import java.util.concurrent.Callable;
import org.opendaylight.transportpce.renderer.provisiondevice.OtnDeviceRendererService;
import org.opendaylight.transportpce.renderer.provisiondevice.OtnDeviceRenderingResult;
import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.OtnServicePathInput;
import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.device.renderer.rev211004.OtnServicePathOutput;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class OtnDeviceRenderingTask implements Callable<OtnDeviceRenderingResult> {
    private static final Logger LOG = LoggerFactory.getLogger(OtnDeviceRenderingTask.class);

    private final OtnDeviceRendererService otnDeviceRenderer;
    private final OtnServicePathInput otnServicePathInput;
    private final String serviceType;

    public OtnDeviceRenderingTask(OtnDeviceRendererService otnDeviceRendererService,
            OtnServicePathInput otnServicePathInput, String serviceType) {
        this.otnDeviceRenderer = otnDeviceRendererService;
        this.otnServicePathInput = otnServicePathInput;
        this.serviceType = serviceType;
    }

    @Override
    public OtnDeviceRenderingResult call() throws Exception {
        OtnServicePathOutput output;
        String operation;
        switch (this.otnServicePathInput.getOperation()) {
            case Create:
                operation = "setup";
                output = this.otnDeviceRenderer.setupOtnServicePath(this.otnServicePathInput, this.serviceType);
                break;
            case Delete:
                operation = "delete";
                output = this.otnDeviceRenderer.deleteOtnServicePath(this.otnServicePathInput, this.serviceType);
                break;
            default:
                return OtnDeviceRenderingResult.failed("Device rendering failed - unknown operation");
        }
        if (!output.getSuccess()) {
            LOG.error("Device rendering {} otn service path failed.", operation);
            return OtnDeviceRenderingResult.failed("Operation Failed");
        }
        LOG.info("Device rendering {} otn service path finished successfully.", operation);
        return OtnDeviceRenderingResult.ok(new ArrayList<>(output.nonnullNodeInterface().values()),
            new ArrayList<>(output.nonnullLinkTp()));
    }
}