/*
 * Copyright (c) 2010-2025 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.core.config.discovery;

import java.util.Random;
import java.util.Set;

import org.eclipse.jdt.annotation.NonNullByDefault;
import org.openhab.core.thing.ThingTypeUID;
import org.openhab.core.thing.ThingUID;

/**
 * The {@link DiscoveryServiceMock} is a mock for a {@link DiscoveryService} which can simulate a working and faulty
 * discovery.<br>
 * If this mock is configured to be faulty, an exception is thrown if the discovery is enforced or aborted.
 *
 * @author Michael Grammling - Initial contribution
 * @author Thomas Höfer - Added representation
 */
@NonNullByDefault
public class DiscoveryServiceMock extends AbstractDiscoveryService {

    public static final int DEFAULT_TTL = 60;

    final ThingTypeUID thingType;
    final boolean faulty;

    public DiscoveryServiceMock(ThingTypeUID thingType, int timeout) {
        this(thingType, timeout, false);
    }

    public DiscoveryServiceMock(ThingTypeUID thingType, int timeout, boolean faulty) {
        super(Set.of(thingType), timeout);
        this.thingType = thingType;
        this.faulty = faulty;
    }

    @Override
    public void startScan() {
        if (faulty) {
            throw new IllegalStateException();
        }
        thingDiscovered(DiscoveryResultBuilder.create(new ThingUID(thingType, "test" + new Random().nextInt(999999999)))
                .withTTL(DEFAULT_TTL).build());
    }
}
