/**
 * Copyright (c) 2010-2019 Contributors to the openHAB project
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 */
package org.openhab.binding.pjlinkdevice.internal;

import static org.openhab.binding.pjlinkdevice.internal.PJLinkDeviceBindingConstants.THING_TYPE_PJLINK;

import java.util.Collections;
import java.util.Set;

import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.smarthome.core.thing.Thing;
import org.eclipse.smarthome.core.thing.ThingTypeUID;
import org.eclipse.smarthome.core.thing.binding.BaseThingHandlerFactory;
import org.eclipse.smarthome.core.thing.binding.ThingHandler;
import org.eclipse.smarthome.core.thing.binding.ThingHandlerFactory;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * The {@link PJLinkDeviceHandlerFactory} is responsible for creating things and thing
 * handlers.
 *
 * @author Nils Schnabel - Initial contribution
 */
@NonNullByDefault
@Component(configurationPid = "binding.pjlinkdevice", service = { ThingHandlerFactory.class })
public class PJLinkDeviceHandlerFactory extends BaseThingHandlerFactory {
  private InputChannelStateDescriptionProvider stateDescriptionProvider;
  private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(THING_TYPE_PJLINK);

  @Activate
  public PJLinkDeviceHandlerFactory(@Reference InputChannelStateDescriptionProvider provider) {
    this.stateDescriptionProvider = provider;
  }

  @Override
  public boolean supportsThingType(ThingTypeUID thingTypeUID) {
    return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  }

  @Override
  protected @Nullable ThingHandler createHandler(Thing thing) {
    ThingTypeUID thingTypeUID = thing.getThingTypeUID();
    if (THING_TYPE_PJLINK.equals(thingTypeUID)) {
      return new PJLinkDeviceHandler(thing, this.stateDescriptionProvider);
    }

    return null;
  }
}
