--- /dev/null
+/**
+ * Sone - SoneLockedHandler.kt - Copyright © 2019 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 java.util.concurrent.*
+import java.util.concurrent.atomic.*
+
+/**
+ * Handler for [SoneLockedEvent]s and [SoneUnlockedEvent]s that can schedule notifications after
+ * a certain timeout.
+ */
+class SoneLockedHandler(private val notificationManager: NotificationManager, private val notification: ListNotification<Sone>, private val executor: ScheduledExecutorService) {
+
+ private val future: AtomicReference<ScheduledFuture<*>> = AtomicReference()
+
+ @Subscribe
+ fun soneLocked(soneLockedEvent: SoneLockedEvent) {
+ synchronized(future) {
+ future.get()?.also { cancelPreviousFuture(it, soneLockedEvent.sone) }
+ future.set(executor.schedule(showNotification(soneLockedEvent.sone), 5, TimeUnit.MINUTES))
+ }
+ }
+
+ @Subscribe
+ fun soneUnlocked(soneUnlockedEvent: SoneUnlockedEvent) {
+ synchronized(future) {
+ future.get()?.also { cancelPreviousFuture(it, soneUnlockedEvent.sone) }
+ }
+ }
+
+ private fun cancelPreviousFuture(future: ScheduledFuture<*>, sone: Sone) {
+ notification.remove(sone)
+ future.cancel(true)
+ }
+
+ private fun showNotification(sone: Sone): () -> Unit = {
+ notification.add(sone)
+ notificationManager.addNotification(notification)
+ }
+
+}