Avoid using the Activity, and use eventSink instead of lambda in states.

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/battery/BatteryOptimizationEvents.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.api.battery
+
+sealed interface BatteryOptimizationEvents {
+    data object Dismiss : BatteryOptimizationEvents
+    data object DoAction : BatteryOptimizationEvents
+}

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/battery/BatteryOptimizationState.kt

@@ -7,10 +7,7 @@
 
 package io.element.android.libraries.push.api.battery
 
-import android.app.Activity
-
 data class BatteryOptimizationState(
     val shouldDisplayBanner: Boolean,
-    val dismiss: () -> Unit,
-    val openSettings: (Activity?) -> Unit,
+    val eventSink: (BatteryOptimizationEvents) -> Unit,
 )

libraries/push/api/src/main/kotlin/io/element/android/libraries/push/api/battery/BatteryOptimizationStateProvider.kt

@@ -7,14 +7,10 @@
 
 package io.element.android.libraries.push.api.battery
 
-import android.app.Activity
-
 fun aBatteryOptimizationState(
     shouldDisplayBanner: Boolean = false,
-    dismiss: () -> Unit = {},
-    openSettings: (Activity?) -> Unit = {},
+    eventSink: (BatteryOptimizationEvents) -> Unit = {},
 ) = BatteryOptimizationState(
     shouldDisplayBanner = shouldDisplayBanner,
-    dismiss = dismiss,
-    openSettings = openSettings,
+    eventSink = eventSink,
 )