Introduce createShortcutId to enforce the same computation of shortcut ids.

Fixes #5192 (comment)

Author: bmarty

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/conversations/DefaultNotificationConversationService.kt

@@ -33,6 +33,7 @@ import io.element.android.libraries.matrix.ui.media.InitialsAvatarBitmapGenerato
 import io.element.android.libraries.push.api.notifications.NotificationBitmapLoader
 import io.element.android.libraries.push.api.notifications.conversations.NotificationConversationService
 import io.element.android.libraries.push.impl.intent.IntentProvider
+import io.element.android.libraries.push.impl.notifications.shortcut.createShortcutId
 import io.element.android.libraries.sessionstorage.api.observer.SessionListener
 import io.element.android.libraries.sessionstorage.api.observer.SessionObserver
 import io.element.android.libraries.ui.strings.CommonStrings
@@ -106,7 +107,7 @@ class DefaultNotificationConversationService(
                 .generateBitmap(defaultShortcutIconSize, AvatarData(id = roomId.value, name = roomName, size = AvatarSize.RoomHeader))
                 ?.let(IconCompat::createWithAdaptiveBitmap)
 
-        val shortcutInfo = ShortcutInfoCompat.Builder(context, "$sessionId-$roomId")
+        val shortcutInfo = ShortcutInfoCompat.Builder(context, createShortcutId(sessionId, roomId))
             .setShortLabel(roomName)
             .setIcon(icon)
             .setIntent(intentProvider.getViewRoomIntent(sessionId, roomId, threadId = null))
@@ -127,7 +128,7 @@ class DefaultNotificationConversationService(
     }
 
     override suspend fun onLeftRoom(sessionId: SessionId, roomId: RoomId) {
-        val shortcutsToRemove = listOf("$sessionId-$roomId")
+        val shortcutsToRemove = listOf(createShortcutId(sessionId, roomId))
         runCatchingExceptions {
             ShortcutManagerCompat.removeDynamicShortcuts(context, shortcutsToRemove)
             if (isRequestPinShortcutSupported) {

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/factories/NotificationCreator.kt

@@ -41,6 +41,7 @@ import io.element.android.libraries.push.impl.notifications.model.FallbackNotifi
 import io.element.android.libraries.push.impl.notifications.model.InviteNotifiableEvent
 import io.element.android.libraries.push.impl.notifications.model.NotifiableMessageEvent
 import io.element.android.libraries.push.impl.notifications.model.SimpleNotifiableEvent
+import io.element.android.libraries.push.impl.notifications.shortcut.createShortcutId
 import io.element.android.services.toolbox.api.strings.StringProvider
 
 interface NotificationCreator {
@@ -140,7 +141,7 @@ class DefaultNotificationCreator(
                 // Must match those created in the ShortcutInfoCompat.Builder()
                 // for the notification to appear as a "Conversation":
                 // https://developer.android.com/develop/ui/views/notifications/conversations
-                .setShortcutId("${roomInfo.sessionId.value}-${roomInfo.roomId.value}")
+                .setShortcutId(createShortcutId(roomInfo.sessionId, roomInfo.roomId))
                 // Auto-bundling is enabled for 4 or more notifications on API 24+ (N+)
                 // devices and all Wear devices. But we want a custom grouping, so we specify the groupID
                 .setGroup(roomInfo.sessionId.value)

libraries/push/impl/src/main/kotlin/io/element/android/libraries/push/impl/notifications/shortcut/Utils.kt

@@ -0,0 +1,13 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.push.impl.notifications.shortcut
+
+import io.element.android.libraries.matrix.api.core.RoomId
+import io.element.android.libraries.matrix.api.core.SessionId
+
+internal fun createShortcutId(sessionId: SessionId, roomId: RoomId) = "$sessionId-$roomId"