/*
 * Copyright (c) 2010-2026 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.homie.internal.handler;

import java.util.Set;

import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.openhab.binding.homie.internal.HomieBindingConstants;
import org.openhab.binding.mqtt.generic.MqttChannelStateDescriptionProvider;
import org.openhab.binding.mqtt.generic.MqttChannelTypeProvider;
import org.openhab.core.thing.Thing;
import org.openhab.core.thing.ThingTypeUID;
import org.openhab.core.thing.binding.BaseThingHandlerFactory;
import org.openhab.core.thing.binding.ThingHandler;
import org.openhab.core.thing.binding.ThingHandlerFactory;
import org.openhab.core.thing.type.ChannelTypeRegistry;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * The {@link HomieThingHandlerFactory} is responsible for creating things and thing
 * handlers.
 *
 * @author David Graeff - Initial contribution
 */
@Component(service = ThingHandlerFactory.class)
@NonNullByDefault
public class HomieThingHandlerFactory extends BaseThingHandlerFactory {
    private final MqttChannelTypeProvider typeProvider;
    private final MqttChannelStateDescriptionProvider stateDescriptionProvider;
    private final ChannelTypeRegistry channelTypeRegistry;

    @Activate
    public HomieThingHandlerFactory(final @Reference MqttChannelTypeProvider typeProvider,
            final @Reference MqttChannelStateDescriptionProvider stateDescriptionProvider,
            final @Reference ChannelTypeRegistry channelTypeRegistry) {
        this.typeProvider = typeProvider;
        this.stateDescriptionProvider = stateDescriptionProvider;
        this.channelTypeRegistry = channelTypeRegistry;
    }

    private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set.of(HomieBindingConstants.HOMIE_DEVICE_THING,
            HomieBindingConstants.LEGACY_MQTT_HOMIE300_THING);

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

    private boolean isHomieDynamicType(ThingTypeUID thingTypeUID) {
        return HomieBindingConstants.BINDING_ID.equals(thingTypeUID.getBindingId())
                && thingTypeUID.getId().startsWith(HomieBindingConstants.HOMIE_DEVICE_THING.getId())
                || HomieBindingConstants.LEGACY_BINDING_ID.equals(thingTypeUID.getBindingId())
                        && thingTypeUID.getId().startsWith(HomieBindingConstants.LEGACY_MQTT_HOMIE300_THING.getId());
    }

    @Override
    protected @Nullable ThingHandler createHandler(Thing thing) {
        ThingTypeUID thingTypeUID = thing.getThingTypeUID();

        if (supportsThingType(thingTypeUID)) {
            return new HomieThingHandler(thing, typeProvider, stateDescriptionProvider, channelTypeRegistry,
                    HomieBindingConstants.HOMIE_DEVICE_TIMEOUT_MS, HomieBindingConstants.HOMIE_SUBSCRIBE_TIMEOUT_MS,
                    HomieBindingConstants.HOMIE_ATTRIBUTE_TIMEOUT_MS);
        }
        return null;
    }
}
