/**
 * Sone - NewRemotePostHandler.kt - Copyright © 2019–2020 David ‘Bombe’ Roden
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package net.pterodactylus.sone.web.notification

import com.google.common.eventbus.*
import net.pterodactylus.sone.core.event.*
import net.pterodactylus.sone.data.*
import net.pterodactylus.sone.notify.*
import net.pterodactylus.util.notify.*
import javax.inject.*

/**
 * Handler for [NewPostFoundEvent]s that adds the new post to the “new posts” notification and
 * displays the notification if the “first start” notification is not being shown.
 */
class NewRemotePostHandler @Inject constructor(private val notificationManager: NotificationManager, @Named("newRemotePost") private val notification: ListNotification<Post>) {

	@Subscribe
	fun newPostFound(newPostFoundEvent: NewPostFoundEvent) {
		if (!newPostFoundEvent.post.sone.isLocal) {
			notification.add(newPostFoundEvent.post)
			if (!notificationManager.hasFirstStartNotification()) {
				notificationManager.addNotification(notification)
			}
		}
	}

	@Subscribe
	fun postRemoved(event: PostRemovedEvent) {
		notification.remove(event.post)
	}

	@Subscribe
	fun postMarkedKnown(event: MarkPostKnownEvent) {
		notification.remove(event.post)
	}

}