wifi aware wip

2026-07-25 05:25:20 +00:00 · 2025-10-21 22:24:55 +02:00
parent 9535ca8940
commit f4341ae1c1
11 changed files with 1490 additions and 2 deletions
@@ -0,0 +1,111 @@
+package com.bitchat.android.wifiaware
+
+import android.content.Context
+import android.os.Build
+import android.util.Log
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+
+/**
+ * WifiAwareController manages lifecycle and debug surfacing for the WifiAwareMeshService.
+ * It starts/stops the service based on debug preferences and exposes simple flows for UI.
+ */
+object WifiAwareController {
+    private const val TAG = "WifiAwareController"
+
+    private var service: WifiAwareMeshService? = null
+    private var appContext: Context? = null
+
+    private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+
+    private val _enabled = MutableStateFlow(false)
+    val enabled: StateFlow<Boolean> = _enabled.asStateFlow()
+
+    private val _running = MutableStateFlow(false)
+    val running: StateFlow<Boolean> = _running.asStateFlow()
+
+    // Simple debug surfacing
+    private val _connectedPeers = MutableStateFlow<Map<String, String>>(emptyMap()) // peerID -> ip
+    val connectedPeers: StateFlow<Map<String, String>> = _connectedPeers.asStateFlow()
+
+    private val _knownPeers = MutableStateFlow<Map<String, String>>(emptyMap()) // peerID -> nickname
+    val knownPeers: StateFlow<Map<String, String>> = _knownPeers.asStateFlow()
+
+    private val _discoveredPeers = MutableStateFlow<Set<String>>(emptySet())
+    val discoveredPeers: StateFlow<Set<String>> = _discoveredPeers.asStateFlow()
+
+    fun initialize(context: Context, enabledByDefault: Boolean) {
+        appContext = context.applicationContext
+        setEnabled(enabledByDefault)
+        // Start background poller for debug surfacing
+        scope.launch {
+            while (isActive) {
+                try {
+                    val s = service
+                    if (s != null) {
+                        _connectedPeers.value = s.getDeviceAddressToPeerMapping().entries.associate { (ip, peer) -> peer to ip }
+                        _knownPeers.value = s.getPeerNicknames()
+                        _discoveredPeers.value = s.getDiscoveredPeerIds()
+                    } else {
+                        _connectedPeers.value = emptyMap()
+                        _knownPeers.value = emptyMap()
+                        _discoveredPeers.value = emptySet()
+                    }
+                } catch (_: Exception) { }
+                delay(1000)
+            }
+        }
+    }
+
+    fun setEnabled(value: Boolean) {
+        _enabled.value = value
+        if (value) startIfPossible() else stop()
+    }
+
+    fun startIfPossible() {
+        if (_running.value) return
+        val ctx = appContext ?: return
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            Log.w(TAG, "Wi‑Fi Aware requires Android 10 (Q)+; disabled.")
+            try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance().addDebugMessage(com.bitchat.android.ui.debug.DebugMessage.SystemMessage("Wi‑Fi Aware not supported on this device (requires Android 10+)")) } catch (_: Exception) {}
+            return
+        }
+        // Android 13+: require NEARBY_WIFI_DEVICES runtime permission
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            val granted = androidx.core.content.ContextCompat.checkSelfPermission(ctx, android.Manifest.permission.NEARBY_WIFI_DEVICES) == android.content.pm.PackageManager.PERMISSION_GRANTED
+            if (!granted) {
+                Log.w(TAG, "Missing NEARBY_WIFI_DEVICES permission; not starting Wi‑Fi Aware")
+                try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance().addDebugMessage(com.bitchat.android.ui.debug.DebugMessage.SystemMessage("Grant Nearby Wi‑Fi Devices to start Wi‑Fi Aware")) } catch (_: Exception) {}
+                return
+            }
+        }
+        try {
+            service = WifiAwareMeshService(ctx).also {
+                it.startServices()
+                _running.value = true
+                try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance().addDebugMessage(com.bitchat.android.ui.debug.DebugMessage.SystemMessage("Wi‑Fi Aware started")) } catch (_: Exception) {}
+            }
+        } catch (e: Throwable) {
+            Log.e(TAG, "Failed to start WifiAwareMeshService", e)
+            _running.value = false
+            try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance().addDebugMessage(com.bitchat.android.ui.debug.DebugMessage.SystemMessage("Wi‑Fi Aware failed to start: ${e.message}")) } catch (_: Exception) {}
+        }
+    }
+
+    fun stop() {
+        try { service?.stopServices() } catch (_: Exception) { }
+        service = null
+        _running.value = false
+        try { com.bitchat.android.ui.debug.DebugSettingsManager.getInstance().addDebugMessage(com.bitchat.android.ui.debug.DebugMessage.SystemMessage("Wi‑Fi Aware stopped")) } catch (_: Exception) {}
+    }
+
+    fun getService(): WifiAwareMeshService? = service
+}