Restore NetworkBlockedChecker so we can initialize DefaultNetworkMonitor.isNetworkBlocked with its contents

We use a separate component to avoid propagating the `@file:Suppress("DEPRECATION")` to the whole `DefaultNetworkMonitor` file

Author: jmartinesp

features/networkmonitor/impl/src/main/kotlin/io/element/android/features/networkmonitor/impl/DefaultNetworkMonitor.kt

@@ -47,7 +47,7 @@ class DefaultNetworkMonitor(
 ) : NetworkMonitor {
     private val connectivityManager: ConnectivityManager = context.getSystemService(ConnectivityManager::class.java)
 
-    override val isNetworkBlocked = MutableStateFlow(false)
+    override val isNetworkBlocked = MutableStateFlow(NetworkBlockedChecker(connectivityManager).isNetworkBlocked())
     override val isInAirGappedEnvironment = MutableStateFlow(false)
 
     override val connectivity: StateFlow<NetworkStatus> = callbackFlow {

features/networkmonitor/impl/src/main/kotlin/io/element/android/features/networkmonitor/impl/NetworkBlockedChecker.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2026 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+@file:Suppress("DEPRECATION")
+
+package io.element.android.features.networkmonitor.impl
+
+import android.annotation.SuppressLint
+import android.net.ConnectivityManager
+import android.net.NetworkInfo
+
+/**
+ * Helper to synchronously check if the active network in [ConnectivityManager] is blocked.
+ *
+ * This is extracted to its own class because it uses deprecated APIs (but the only ones that are reliable)
+ * and we don't want to suppress deprecations everywhere in the file this would be called.
+ */
+class NetworkBlockedChecker(
+    private val connectivityManager: ConnectivityManager,
+) {
+    // The permission is granted by the manifest, false positive
+    @SuppressLint("MissingPermission")
+    fun isNetworkBlocked(): Boolean {
+        // This call is deprecated, but it seems like it's the only reliable way to tell if doze has blocked network access
+        return connectivityManager.activeNetworkInfo?.detailedState == NetworkInfo.DetailedState.BLOCKED
+    }
+}