/**
 * Copyright (c) 2010-2022 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.sncf.internal;

import static org.openhab.binding.sncf.internal.SncfBindingConstants.*;

import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.jetty.client.HttpClient;
import org.openhab.binding.sncf.internal.handler.SncfBridgeHandler;
import org.openhab.binding.sncf.internal.handler.StationHandler;
import org.openhab.core.i18n.LocationProvider;
import org.openhab.core.io.net.http.HttpClientFactory;
import org.openhab.core.thing.Bridge;
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.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.gson.FieldNamingPolicy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

/**
 * The {@link SncfHandlerFactory} is responsible for creating things and thing
 * handlers.
 *
 * @author Gaël L'hopital - Initial contribution
 */
@NonNullByDefault
@Component(configurationPid = "binding.sncf", service = ThingHandlerFactory.class)
public class SncfHandlerFactory extends BaseThingHandlerFactory {
    private final Logger logger = LoggerFactory.getLogger(SncfHandlerFactory.class);
    private final LocationProvider locationProvider;
    private final HttpClient httpClient;
    private final Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
            .create();

    @Activate
    public SncfHandlerFactory(@Reference LocationProvider locationProvider,
            final @Reference HttpClientFactory httpClientFactory) {
        this.locationProvider = locationProvider;
        this.httpClient = httpClientFactory.getCommonHttpClient();
    }

    @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 (APIBRIDGE_THING_TYPE.equals(thingTypeUID)) {
            return new SncfBridgeHandler((Bridge) thing, gson, locationProvider, httpClient);
        } else if (STATION_THING_TYPE.equals(thingTypeUID)) {
            return new StationHandler(thing, locationProvider);
        }
        logger.warn("ThingHandler not found for {}", thing.getThingTypeUID());
        return null;
    }
}
