Refactor time access behind TimeSource

app/src/main/java/eu/darken/capod/common/MediaControl.kt

@@ -1,7 +1,6 @@
 package eu.darken.capod.common
 
 import android.media.AudioManager
-import android.os.SystemClock
 import android.view.KeyEvent
 import eu.darken.capod.common.debug.logging.Logging.Priority.INFO
 import eu.darken.capod.common.debug.logging.log
@@ -13,6 +12,7 @@ import javax.inject.Singleton
 @Singleton
 class MediaControl @Inject constructor(
     private val audioManager: AudioManager,
+    private val timeSource: TimeSource,
 ) {
     private var capPauseExpiryElapsedRealtime: Long = 0L
 
@@ -20,7 +20,7 @@ class MediaControl @Inject constructor(
         get() = audioManager.isMusicActive
 
     val wasRecentlyPausedByCap: Boolean
-        get() = capPauseExpiryElapsedRealtime > SystemClock.elapsedRealtime()
+        get() = capPauseExpiryElapsedRealtime > timeSource.elapsedRealtime()
 
     suspend fun sendPlay() {
         log(TAG, INFO) { "sendPlay()" }
@@ -57,7 +57,7 @@ class MediaControl @Inject constructor(
 
     internal suspend fun sendKey(keyCode: Int) {
         log(TAG) { "Sending up+down KeyEvent: $keyCode" }
-        val eventTime = SystemClock.uptimeMillis()
+        val eventTime = timeSource.uptimeMillis()
         audioManager.dispatchMediaKeyEvent(KeyEvent(eventTime, eventTime, KeyEvent.ACTION_DOWN, keyCode, 0))
         delay(100)
         audioManager.dispatchMediaKeyEvent(KeyEvent(eventTime + 200, eventTime + 200, KeyEvent.ACTION_UP, keyCode, 0))
@@ -82,7 +82,7 @@ class MediaControl @Inject constructor(
     }
 
     private fun markRecentCapPause() {
-        capPauseExpiryElapsedRealtime = SystemClock.elapsedRealtime() + RECENT_CAP_PAUSE_WINDOW_MS
+        capPauseExpiryElapsedRealtime = timeSource.elapsedRealtime() + RECENT_CAP_PAUSE_WINDOW_MS
     }
 
     private fun clearRecentCapPause() {

app/src/main/java/eu/darken/capod/common/SystemClockWrap.kt

@@ -1,9 +0,0 @@
-package eu.darken.capod.common
-
-import android.os.SystemClock
-
-object SystemClockWrap {
-
-    val elapsedRealtimeNanos: Long
-        get() = SystemClock.elapsedRealtimeNanos()
-}

app/src/main/java/eu/darken/capod/common/TimeModule.kt

@@ -0,0 +1,14 @@
+package eu.darken.capod.common
+
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+
+@InstallIn(SingletonComponent::class)
+@Module
+abstract class TimeModule {
+
+    @Binds
+    abstract fun timeSource(defaultTimeSource: DefaultTimeSource): TimeSource
+}

app/src/main/java/eu/darken/capod/common/TimeSource.kt

@@ -0,0 +1,29 @@
+package eu.darken.capod.common
+
+import android.os.SystemClock
+import java.time.Instant
+import javax.inject.Inject
+import javax.inject.Singleton
+
+interface TimeSource {
+    fun now(): Instant
+    fun currentTimeMillis(): Long
+    fun elapsedRealtime(): Long
+    fun elapsedRealtimeNanos(): Long
+    fun uptimeMillis(): Long
+}
+
+object SystemTimeSource : TimeSource {
+    override fun now(): Instant = Instant.now()
+
+    override fun currentTimeMillis(): Long = System.currentTimeMillis()
+
+    override fun elapsedRealtime(): Long = SystemClock.elapsedRealtime()
+
+    override fun elapsedRealtimeNanos(): Long = SystemClock.elapsedRealtimeNanos()
+
+    override fun uptimeMillis(): Long = SystemClock.uptimeMillis()
+}
+
+@Singleton
+class DefaultTimeSource @Inject constructor() : TimeSource by SystemTimeSource

app/src/main/java/eu/darken/capod/common/bluetooth/BleScanResult.kt

@@ -3,6 +3,8 @@ package eu.darken.capod.common.bluetooth
 import android.bluetooth.le.ScanResult
 import android.os.Parcelable
 import androidx.core.util.forEach
+import eu.darken.capod.common.SystemTimeSource
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.serialization.InstantEpochMillisSerializer
 import eu.darken.capod.common.serialization.MapIntByteArrayBase64Serializer
 import kotlinx.parcelize.Parcelize
@@ -31,8 +33,11 @@ data class BleScanResult(
     }
 
     companion object {
-        fun fromScanResult(scanResult: ScanResult) = BleScanResult(
-            receivedAt = Instant.now(),
+        fun fromScanResult(
+            scanResult: ScanResult,
+            timeSource: TimeSource = SystemTimeSource,
+        ) = BleScanResult(
+            receivedAt = timeSource.now(),
             address = scanResult.device.address,
             rssi = scanResult.rssi,
             generatedAtNanos = scanResult.timestampNanos,
@@ -43,4 +48,4 @@ data class BleScanResult(
             }
         )
     }
-}
+}

app/src/main/java/eu/darken/capod/common/bluetooth/BleScanner.kt

@@ -9,6 +9,7 @@ import android.bluetooth.le.ScanSettings
 import android.content.Context
 import android.content.Intent
 import dagger.hilt.android.qualifiers.ApplicationContext
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.debug.logging.Logging.Priority.DEBUG
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
 import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
@@ -33,6 +34,7 @@ class BleScanner @Inject constructor(
     private val bluetoothManager: BluetoothManager2,
     private val fakeBleData: FakeBleData,
     private val scanResultForwarder: BleScanResultForwarder,
+    private val timeSource: TimeSource,
 ) {
 
     @SuppressLint("MissingPermission") fun scan(
@@ -71,15 +73,15 @@ class BleScanner @Inject constructor(
                     if (!passed) log(TAG, VERBOSE) { "Manually filtered $result" }
                     passed
                 }
-                .map { BleScanResult.fromScanResult(it) }
+                .map { BleScanResult.fromScanResult(it, timeSource) }
         }
 
         val callback = object : ScanCallback() {
-            var lastScanAt = System.currentTimeMillis()
+            var lastScanAt = timeSource.currentTimeMillis()
             override fun onScanResult(callbackType: Int, result: ScanResult) {
                 log(TAG, VERBOSE) {
-                    val delay = System.currentTimeMillis() - lastScanAt
-                    lastScanAt = System.currentTimeMillis()
+                    val delay = timeSource.currentTimeMillis() - lastScanAt
+                    lastScanAt = timeSource.currentTimeMillis()
                     "onScanResult(delay=${delay}ms, callbackType=$callbackType, result=$result)"
                 }
 
@@ -88,8 +90,8 @@ class BleScanner @Inject constructor(
 
             override fun onBatchScanResults(results: MutableList<ScanResult>) {
                 log(TAG, VERBOSE) {
-                    val delay = System.currentTimeMillis() - lastScanAt
-                    lastScanAt = System.currentTimeMillis()
+                    val delay = timeSource.currentTimeMillis() - lastScanAt
+                    lastScanAt = timeSource.currentTimeMillis()
                     "onBatchScanResults(delay=${delay}ms, results=$results)"
                 }
 
@@ -210,4 +212,4 @@ class BleScanner @Inject constructor(
         private const val CALLBACK_INTENT_REQUESTCODE = 270
         private val TAG = logTag("Bluetooth", "BleScanner")
     }
-}
+}

app/src/main/java/eu/darken/capod/common/bluetooth/BluetoothManager2.kt

@@ -13,6 +13,7 @@ import android.content.IntentFilter
 import android.os.Handler
 import android.os.HandlerThread
 import dagger.hilt.android.qualifiers.ApplicationContext
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.coroutine.AppScope
 import eu.darken.capod.common.coroutine.DispatcherProvider
 import eu.darken.capod.common.debug.Bugs
@@ -53,6 +54,7 @@ class BluetoothManager2 @Inject constructor(
     private val dispatcherProvider: DispatcherProvider,
     @ApplicationContext private val context: Context,
     private val manager: BluetoothManager,
+    private val timeSource: TimeSource,
 ) {
 
     val adapter: BluetoothAdapter?
@@ -255,8 +257,10 @@ class BluetoothManager2 @Inject constructor(
                     BluetoothDevice2(
                         internal = device,
                         seenFirstAt = seenDevicesLock.withLock {
-                            seenDevicesCache[device.address] ?: Instant.now().also {
-                                seenDevicesCache[device.address] = it
+                            seenDevicesCache[device.address] ?: run {
+                                val now = timeSource.now()
+                                seenDevicesCache[device.address] = now
+                                now
                             }
                         }
                     )
@@ -294,8 +298,10 @@ class BluetoothManager2 @Inject constructor(
             BluetoothDevice2(
                 internal = device,
                 seenFirstAt = seenDevicesLock.withLock {
-                    seenDevicesCache[device.address] ?: Instant.now().also {
-                        seenDevicesCache[device.address] = it
+                    seenDevicesCache[device.address] ?: run {
+                        val now = timeSource.now()
+                        seenDevicesCache[device.address] = now
+                        now
                     }
                 }
             )
@@ -364,4 +370,4 @@ class BluetoothManager2 @Inject constructor(
     companion object {
         private val TAG = logTag("Bluetooth", "Manager2")
     }
-}
+}

app/src/main/java/eu/darken/capod/common/bluetooth/FakeBleData.kt

@@ -1,10 +1,9 @@
 package eu.darken.capod.common.bluetooth
 
 import dagger.Reusable
-import eu.darken.capod.common.SystemClockWrap
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.debug.DebugSettings
 import eu.darken.capod.common.fromHex
-import java.time.Instant
 import javax.inject.Inject
 import kotlin.random.Random
 import eu.darken.capod.common.datastore.valueBlocking
@@ -12,6 +11,7 @@ import eu.darken.capod.common.datastore.valueBlocking
 @Reusable
 class FakeBleData @Inject constructor(
     private val debugSettings: DebugSettings,
+    private val timeSource: TimeSource,
 ) {
 
     fun maybeAddfakeData(originals: Collection<BleScanResult>): Collection<BleScanResult> {
@@ -21,12 +21,14 @@ class FakeBleData @Inject constructor(
 
     fun getFakeData(): Collection<BleScanResult> {
         val fakeDevices = mutableListOf<BleScanResult>()
+        val now = timeSource.now()
+        val generatedAt = timeSource.elapsedRealtimeNanos()
         // AirPods Gen1
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "78:73:AF:B4:85:22",
             rssi = Random.nextInt(100) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 100,
+            generatedAtNanos = generatedAt + 100,
             manufacturerSpecificData = mapOf(76 to "07 19 01 02 20 75 AA B6 31 00 05 9C 5A A4 5D C0 2C A0 B4 6F B9 ED 8E CE 03 97 CA".fromHex())
         ).run {
             fakeDevices.add(this)
@@ -34,10 +36,10 @@ class FakeBleData @Inject constructor(
 
         // AirPods Gen2
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "78:73:FF:B4:85:5E",
             rssi = Random.nextInt(100) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 100,
+            generatedAtNanos = generatedAt + 100,
             manufacturerSpecificData = mapOf(76 to "07 19 01 0F 20 75 AA B6 31 00 05 9C 5A A4 5D C0 2C A0 B4 6F B9 ED 8E CE 03 97 CA".fromHex())
         ).run {
             fakeDevices.add(this)
@@ -45,30 +47,30 @@ class FakeBleData @Inject constructor(
 
         // AirPods Gen3
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "4E:9E:D1:49:D2:6D",
             rssi = Random.nextInt(15, 75) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 200,
+            generatedAtNanos = generatedAt + 200,
             manufacturerSpecificData = mapOf(76 to "07 19 01 13 20 55 AF 56 31 00 06 6F E4 DF 10 AF 10 60 81 03 3B 76 D9 C7 11 22 88".fromHex())
         ).run {
             fakeDevices.add(this)
         }
         // AirPods Max
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "7E:E5:C7:65:D2:B5",
             rssi = Random.nextInt(15, 75) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 300,
+            generatedAtNanos = generatedAt + 300,
             manufacturerSpecificData = mapOf(76 to "07 19 01 0A 20 02 05 80 04 0F 44 A7 60 9B F8 3C FD B1 D8 1C 61 EA 82 60 A3 2C 4E".fromHex())
         ).run {
             fakeDevices.add(this)
         }
         // BeatsFlex
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "5E:9E:D1:49:D2:6D",
             rssi = Random.nextInt(15, 75) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 400,
+            generatedAtNanos = generatedAt + 400,
             manufacturerSpecificData = mapOf(76 to "07 19 01 10 20 0A F4 8F 00 01 00 C4 71 9F 9C EF A2 E3 BA 66 FE 1D 45 9F C9 2F A0".fromHex())
         ).run {
             fakeDevices.add(this)
@@ -76,10 +78,10 @@ class FakeBleData @Inject constructor(
 
         // Tws i99999
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "5E:9E:D1:29:D2:6D",
             rssi = Random.nextInt(15, 75) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 400,
+            generatedAtNanos = generatedAt + 400,
             manufacturerSpecificData = mapOf(76 to "07 13 01 02 20 71 AA 37 32 00 10 00 64 64 FF 00 00 00 00 00 00".fromHex())
         ).run {
             fakeDevices.add(this)
@@ -87,10 +89,10 @@ class FakeBleData @Inject constructor(
 
         // Unknown Device
         BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = now,
             address = "6E:9E:D1:49:D2:6D",
             rssi = Random.nextInt(15, 75) * -1,
-            generatedAtNanos = SystemClockWrap.elapsedRealtimeNanos + 500,
+            generatedAtNanos = generatedAt + 500,
             manufacturerSpecificData = mapOf(76 to "07 19 01 FF 20 0A F4 8F 00 01 00 C4 71 9F 9C EF A2 E3 BA 66 FE 1D 45 9F C9 2F A0".fromHex())
         ).run {
             fakeDevices.add(this)
@@ -98,4 +100,4 @@ class FakeBleData @Inject constructor(
 
         return fakeDevices
     }
-}
+}

app/src/main/java/eu/darken/capod/common/debug/logging/FileLogger.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.common.debug.logging
 
 import android.annotation.SuppressLint
 import android.util.Log
+import eu.darken.capod.common.TimeSource
 import java.io.File
 import java.io.FileOutputStream
 import java.io.IOException
@@ -10,7 +11,10 @@ import java.time.Instant
 
 
 @SuppressLint("LogNotTimber")
-class FileLogger(private val logFile: File) : Logging.Logger {
+class FileLogger(
+    private val logFile: File,
+    private val timeSource: TimeSource,
+) : Logging.Logger {
     private var logWriter: OutputStreamWriter? = null
 
     @SuppressLint("SetWorldReadable")
@@ -57,7 +61,7 @@ class FileLogger(private val logFile: File) : Logging.Logger {
     override fun log(priority: Logging.Priority, tag: String, message: String, metaData: Map<String, Any>?) {
         logWriter?.let {
             try {
-                it.write("${Instant.ofEpochMilli(System.currentTimeMillis())}  ${priority.shortLabel}/$tag: $message\n")
+                it.write("${timeSource.now()}  ${priority.shortLabel}/$tag: $message\n")
                 it.flush()
             } catch (e: IOException) {
                 Log.e(TAG, "Failed to write log line.", e)
@@ -76,4 +80,3 @@ class FileLogger(private val logFile: File) : Logging.Logger {
         private val TAG = logTag("Debug", "FileLogger")
     }
 }
-

app/src/main/java/eu/darken/capod/common/debug/recording/core/Recorder.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.common.debug.recording.core
 
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.debug.logging.FileLogger
 import eu.darken.capod.common.debug.logging.Logging
 import eu.darken.capod.common.debug.logging.Logging.Priority.INFO
@@ -10,7 +11,9 @@ import kotlinx.coroutines.sync.withLock
 import java.io.File
 import javax.inject.Inject
 
-class Recorder @Inject constructor() {
+class Recorder @Inject constructor(
+    private val timeSource: TimeSource,
+) {
     private val mutex = Mutex()
     private var fileLogger: FileLogger? = null
 
@@ -23,7 +26,7 @@ class Recorder @Inject constructor() {
     suspend fun start(path: File) = mutex.withLock {
         if (fileLogger != null) return@withLock
         this.path = path
-        fileLogger = FileLogger(path)
+        fileLogger = FileLogger(path, timeSource)
         fileLogger?.let {
             it.start()
             Logging.install(it)
@@ -45,4 +48,4 @@ class Recorder @Inject constructor() {
         internal val TAG = logTag("Debug", "Log", "Recorder")
     }
 
-}
+}

app/src/main/java/eu/darken/capod/common/debug/recording/core/RecorderModule.kt

@@ -7,6 +7,8 @@ import androidx.annotation.VisibleForTesting
 import dagger.hilt.android.qualifiers.ApplicationContext
 import eu.darken.capod.common.BuildConfigWrap
 import eu.darken.capod.common.InstallId
+import eu.darken.capod.common.SystemTimeSource
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.coroutine.AppScope
 import eu.darken.capod.common.coroutine.DispatcherProvider
 import eu.darken.capod.common.debug.logging.Logging.Priority.ERROR
@@ -32,6 +34,7 @@ class RecorderModule @Inject constructor(
     @AppScope private val appScope: CoroutineScope,
     private val dispatcherProvider: DispatcherProvider,
     private val installId: InstallId,
+    private val timeSource: TimeSource,
 ) {
 
     @Volatile
@@ -73,11 +76,11 @@ class RecorderModule @Inject constructor(
                             createSessionDir()
                         }
                         val logFile = File(sessionDir, "core.log")
-                        val newRecorder = Recorder()
+                        val newRecorder = Recorder(timeSource)
                         newRecorder.start(logFile)
 
                         if (!isResume) {
-                            val startTime = System.currentTimeMillis()
+                            val startTime = timeSource.currentTimeMillis()
                             writeTriggerFile(sessionDir, startTime)
                             log(TAG, INFO) { "Build.Fingerprint: ${Build.FINGERPRINT}" }
                             log(TAG, INFO) { "BuildConfig.Versions: ${BuildConfigWrap.VERSION_DESCRIPTION}" }
@@ -99,7 +102,7 @@ class RecorderModule @Inject constructor(
                             copy(
                                 recorder = newRecorder,
                                 currentLogDir = sessionDir,
-                                recordingStartedAt = if (recordingStartedAt > 0L) recordingStartedAt else System.currentTimeMillis(),
+                                recordingStartedAt = if (recordingStartedAt > 0L) recordingStartedAt else timeSource.currentTimeMillis(),
                                 persistedLogDir = null,
                             )
                         }
@@ -126,7 +129,7 @@ class RecorderModule @Inject constructor(
     }
 
     private fun createSessionDir(): File {
-        val timestamp = java.time.ZonedDateTime.now(java.time.ZoneOffset.UTC)
+        val timestamp = timeSource.now().atZone(java.time.ZoneOffset.UTC)
             .format(java.time.format.DateTimeFormatter.ofPattern("yyyyMMdd'T'HHmmss'Z'"))
         val installIdPrefix = installId.id.take(8)
         val dirName = "capod_${BuildConfigWrap.VERSION_NAME}_${timestamp}_$installIdPrefix"
@@ -179,7 +182,7 @@ class RecorderModule @Inject constructor(
         if (!currentState.isRecording) return StopResult.NotRecording
 
         val logDir = currentState.currentLogDir ?: return StopResult.NotRecording
-        val elapsed = System.currentTimeMillis() - currentState.recordingStartedAt
+        val elapsed = timeSource.currentTimeMillis() - currentState.recordingStartedAt
         if (elapsed < MIN_RECORDING_MS) return StopResult.TooShort
 
         stopRecorder()
@@ -235,7 +238,7 @@ class RecorderModule @Inject constructor(
         @VisibleForTesting
         internal fun parseTriggerContent(
             content: String,
-            now: Long = System.currentTimeMillis(),
+            now: Long = SystemTimeSource.currentTimeMillis(),
         ): Pair<File, Long>? {
             val trimmed = content.trim()
             if (trimmed.isEmpty()) return null

app/src/main/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsViewModel.kt

@@ -8,6 +8,8 @@ import eu.darken.capod.common.debug.logging.Logging.Priority.WARN
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.flow.SingleEventFlow
+import eu.darken.capod.common.SystemTimeSource
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.uix.ViewModel4
 import eu.darken.capod.main.core.GeneralSettings
 import eu.darken.capod.main.core.MonitorMode
@@ -46,6 +48,7 @@ class DeviceSettingsViewModel @Inject constructor(
     private val bluetoothManager: BluetoothManager2,
     private val profilesRepo: DeviceProfilesRepo,
     private val generalSettings: GeneralSettings,
+    private val timeSource: TimeSource,
 ) : ViewModel4(dispatcherProvider) {
 
     private val targetProfileId = MutableStateFlow<ProfileId?>(null)
@@ -88,7 +91,7 @@ class DeviceSettingsViewModel @Inject constructor(
             val connectedAddresses = connectedDevices.map { it.address }.toSet()
             State(
                 device = device,
-                now = Instant.now(),
+                now = timeSource.now(),
                 isPro = upgrade.isPro,
                 isNudgeAvailable = bluetoothManager.isNudgeAvailable,
                 isForceConnecting = forcing,
@@ -110,7 +113,7 @@ class DeviceSettingsViewModel @Inject constructor(
 
     data class State(
         val device: PodDevice?,
-        val now: Instant = Instant.now(),
+        val now: Instant = SystemTimeSource.now(),
         val isPro: Boolean = false,
         val isNudgeAvailable: Boolean = true,
         val isForceConnecting: Boolean = false,

app/src/main/java/eu/darken/capod/main/ui/overview/OverviewScreen.kt

@@ -38,6 +38,7 @@ import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.compose.LifecycleEventEffect
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
@@ -327,7 +328,7 @@ private fun PodDeviceCard(
 private fun OverviewScreenWithDevicesPreview() = PreviewWrapper {
     OverviewScreen(
         state = OverviewViewModel.State(
-            now = Instant.now(),
+            now = SystemTimeSource.now(),
             permissions = emptySet(),
             devices = listOf(
                 MockPodDataProvider.dualPodMonitoredMixed(),
@@ -356,7 +357,7 @@ private fun OverviewScreenWithDevicesPreview() = PreviewWrapper {
 private fun OverviewScreenEmptyPreview() = PreviewWrapper {
     OverviewScreen(
         state = OverviewViewModel.State(
-            now = Instant.now(),
+            now = SystemTimeSource.now(),
             permissions = emptySet(),
             devices = emptyList(),
             isDebugMode = false,
@@ -378,7 +379,7 @@ private fun OverviewScreenEmptyPreview() = PreviewWrapper {
 private fun OverviewScreenNoProfilesPreview() = PreviewWrapper {
     OverviewScreen(
         state = OverviewViewModel.State(
-            now = Instant.now(),
+            now = SystemTimeSource.now(),
             permissions = emptySet(),
             devices = emptyList(),
             isDebugMode = false,
@@ -400,7 +401,7 @@ private fun OverviewScreenNoProfilesPreview() = PreviewWrapper {
 private fun OverviewScreenBluetoothOffPreview() = PreviewWrapper {
     OverviewScreen(
         state = OverviewViewModel.State(
-            now = Instant.now(),
+            now = SystemTimeSource.now(),
             permissions = emptySet(),
             devices = emptyList(),
             isDebugMode = false,

app/src/main/java/eu/darken/capod/main/ui/overview/OverviewViewModel.kt

@@ -12,6 +12,7 @@ import eu.darken.capod.common.flow.combine
 import eu.darken.capod.common.flow.throttleLatest
 import eu.darken.capod.common.navigation.Nav
 import eu.darken.capod.common.permissions.Permission
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.uix.ViewModel4
 import eu.darken.capod.common.upgrade.UpgradeRepo
 import eu.darken.capod.main.core.GeneralSettings
@@ -50,6 +51,7 @@ class OverviewViewModel @Inject constructor(
     private val bluetoothManager: BluetoothManager2,
     private val profilesRepo: DeviceProfilesRepo,
     private val aapManager: AapConnectionManager,
+    private val timeSource: TimeSource,
 ) : ViewModel4(dispatcherProvider) {
 
     val requestPermissionEvent = SingleEventFlow<Permission>()
@@ -112,7 +114,7 @@ class OverviewViewModel @Inject constructor(
         showUnmatchedDevices,
     ) { _, permissions, devices, isDebugMode, isBluetoothEnabled, profiles, upgradeInfo, showUnmatched ->
         State(
-            now = Instant.now(),
+            now = timeSource.now(),
             permissions = permissions,
             devices = devices,
             isDebugMode = isDebugMode,

app/src/main/java/eu/darken/capod/main/ui/overview/cards/DualPodsCard.kt

@@ -43,6 +43,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
@@ -415,7 +416,7 @@ private fun DualPodsCardFullPreview() = PreviewWrapper {
     DualPodsCard(
         device = MockPodDataProvider.dualPodMonitoredWithAap(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
         isPro = false,
         onDeviceSettings = {},
     )
@@ -427,7 +428,7 @@ private fun DualPodsCardMinimalPreview() = PreviewWrapper {
     DualPodsCard(
         device = MockPodDataProvider.dualPodMonitored(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
     )
 }
 
@@ -437,7 +438,7 @@ private fun DualPodsCardCachedPreview() = PreviewWrapper {
     DualPodsCard(
         device = MockPodDataProvider.dualPodCachedOnly(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
     )
 }
 
@@ -447,7 +448,7 @@ private fun DualPodsCardMissingAddressPreview() = PreviewWrapper {
     DualPodsCard(
         device = MockPodDataProvider.dualPodMonitoredMixed(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
         onEditProfile = {},
     )
 }

app/src/main/java/eu/darken/capod/main/ui/overview/cards/SinglePodsCard.kt

@@ -43,6 +43,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.compose.Preview2
 import eu.darken.capod.common.compose.PreviewWrapper
 import eu.darken.capod.common.compose.preview.MockPodDataProvider
@@ -286,7 +287,7 @@ private fun SinglePodsCardFullPreview() = PreviewWrapper {
     SinglePodsCard(
         device = MockPodDataProvider.singlePodMonitoredWithAap(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
         onDeviceSettings = {},
     )
 }
@@ -297,7 +298,7 @@ private fun SinglePodsCardMinimalPreview() = PreviewWrapper {
     SinglePodsCard(
         device = MockPodDataProvider.singlePodMonitored(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
     )
 }
 
@@ -307,7 +308,7 @@ private fun SinglePodsCardCachedPreview() = PreviewWrapper {
     SinglePodsCard(
         device = MockPodDataProvider.singlePodCachedOnly(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
     )
 }
 
@@ -317,7 +318,7 @@ private fun SinglePodsCardMissingAddressPreview() = PreviewWrapper {
     SinglePodsCard(
         device = MockPodDataProvider.singlePodMonitored(),
         showDebug = false,
-        now = Instant.now(),
+        now = SystemTimeSource.now(),
         onEditProfile = {},
     )
 }

app/src/main/java/eu/darken/capod/main/ui/settings/support/SupportScreen.kt

@@ -53,6 +53,7 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import eu.darken.capod.R
 import eu.darken.capod.common.PrivacyPolicy
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.WebpageTool
 import eu.darken.capod.common.compose.ConfirmationDialog
 import eu.darken.capod.common.compose.Preview2
@@ -452,7 +453,7 @@ private fun SessionRow(
             )
             val agoText = DateUtils.getRelativeTimeSpanString(
                 session.createdAt.toEpochMilli(),
-                System.currentTimeMillis(),
+                SystemTimeSource.currentTimeMillis(),
                 DateUtils.SECOND_IN_MILLIS,
                 DateUtils.FORMAT_ABBREV_RELATIVE,
             )

app/src/main/java/eu/darken/capod/main/ui/settings/support/contactform/ContactFormScreen.kt

@@ -58,6 +58,7 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.LifecycleResumeEffect
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.PrivacyPolicy
 import eu.darken.capod.common.WebpageTool
 import eu.darken.capod.common.compose.ConfirmationDialog
@@ -338,7 +339,7 @@ fun ContactFormScreen(
                                         val sizeText = Formatter.formatShortFileSize(context, session.diskSize)
                                         val agoText = DateUtils.getRelativeTimeSpanString(
                                             session.createdAt.toEpochMilli(),
-                                            System.currentTimeMillis(),
+                                            SystemTimeSource.currentTimeMillis(),
                                             DateUtils.SECOND_IN_MILLIS,
                                             DateUtils.FORMAT_ABBREV_RELATIVE,
                                         )

app/src/main/java/eu/darken/capod/monitor/core/DeviceMonitor.kt

@@ -1,6 +1,7 @@
 package eu.darken.capod.monitor.core
 
 import eu.darken.capod.common.bluetooth.BluetoothAddress
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.coroutine.AppScope
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
 import eu.darken.capod.common.debug.logging.log
@@ -42,6 +43,7 @@ class DeviceMonitor @Inject constructor(
     private val deviceStateCache: DeviceStateCache,
     private val profilesRepo: DeviceProfilesRepo,
     private val aapLifecycleManager: AapLifecycleManager,
+    private val timeSource: TimeSource,
 ) {
     init {
         aapLifecycleManager.start()
@@ -155,7 +157,7 @@ class DeviceMonitor @Inject constructor(
         for (device in devices) {
             val profileId = device.profileId ?: continue
             val existing = deviceStateCache.cachedStates.value[profileId]
-            val newState = device.toCachedState(existing) ?: continue
+            val newState = device.toCachedState(existing, timeSource.now()) ?: continue
 
             log(TAG, VERBOSE) { "Persisting state for $profileId" }
             deviceStateCache.save(profileId, newState)

app/src/main/java/eu/darken/capod/monitor/core/PodDevice.kt

@@ -3,6 +3,7 @@ package eu.darken.capod.monitor.core
 import android.content.Context
 import androidx.compose.runtime.Stable
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.monitor.core.cache.CachedDeviceState
 import eu.darken.capod.pods.core.apple.PodModel
@@ -73,7 +74,7 @@ data class PodDevice(
     val signalQuality: Float
         get() {
             val bleQuality = ble?.signalQuality ?: 0f
-            return (bleQuality + computeAapBoost(Instant.now())).coerceAtMost(1f)
+            return (bleQuality + computeAapBoost(SystemTimeSource.now())).coerceAtMost(1f)
         }
 
     /**

app/src/main/java/eu/darken/capod/monitor/core/ble/BlePodMonitor.kt

@@ -1,6 +1,7 @@
 package eu.darken.capod.monitor.core.ble
 
 import android.bluetooth.le.ScanFilter
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.bluetooth.BleScanner
 import eu.darken.capod.common.bluetooth.BluetoothManager2
@@ -44,6 +45,7 @@ class BlePodMonitor @Inject constructor(
     @AppScope private val appScope: CoroutineScope,
     private val bleScanner: BleScanner,
     private val podFactory: PodFactory,
+    private val timeSource: TimeSource,
     private val generalSettings: GeneralSettings,
     bluetoothManager: BluetoothManager2,
     private val debugSettings: DebugSettings,
@@ -97,7 +99,7 @@ class BlePodMonitor @Inject constructor(
         .replayingShare(appScope)
 
     private suspend fun sortPodsToInterest(devices: Collection<BlePodSnapshot>): List<BlePodSnapshot> {
-        val now = Instant.now()
+        val now = timeSource.now()
         val profiles = profilesRepo.currentProfiles() ?: emptyList()
 
         return devices.sortedWith(
@@ -175,7 +177,7 @@ class BlePodMonitor @Inject constructor(
             return emptyMap()
         }
 
-        val now = Instant.now()
+        val now = timeSource.now()
         deviceCache.toList().forEach { (key, value) ->
             if (Duration.between(value.seenLastAt, now) > STALE_DEVICE_TIMEOUT) {
                 log(TAG, Logging.Priority.VERBOSE) { "Removing stale device from cache: $value" }
@@ -200,4 +202,4 @@ class BlePodMonitor @Inject constructor(
         private val STALE_DEVICE_TIMEOUT = Duration.ofSeconds(20)
         private val STALE_EVICTION_INTERVAL = Duration.ofSeconds(10)
     }
-}
+}

app/src/main/java/eu/darken/capod/monitor/core/cache/DeviceStateCacheExtensions.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.monitor.core.cache
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.monitor.core.PodDevice
 import eu.darken.capod.monitor.core.cache.CachedDeviceState.CachedBatterySlot
 import eu.darken.capod.pods.core.apple.ble.DualBlePodSnapshot
@@ -18,7 +19,7 @@ import java.time.Instant
  */
 fun PodDevice.toCachedState(
     existing: CachedDeviceState?,
-    now: Instant = Instant.now(),
+    now: Instant = SystemTimeSource.now(),
 ): CachedDeviceState? {
     if (!isLive) return null
     val pid = profileId ?: return null

app/src/main/java/eu/darken/capod/pods/core/apple/aap/AapConnection.kt

@@ -3,6 +3,7 @@ package eu.darken.capod.pods.core.apple.aap
 import android.annotation.SuppressLint
 import android.bluetooth.BluetoothDevice
 import android.bluetooth.BluetoothSocket
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.l2cap.L2capSocketFactory
 import eu.darken.capod.common.debug.logging.Logging.Priority.ERROR
 import eu.darken.capod.common.debug.logging.Logging.Priority.INFO
@@ -48,6 +49,7 @@ internal class AapConnection(
     private val device: BluetoothDevice,
     private val profile: AapDeviceProfile,
     private val socketFactory: L2capSocketFactory,
+    private val timeSource: TimeSource,
     private val psm: Int = 0x1001,
 ) {
 
@@ -168,7 +170,7 @@ internal class AapConnection(
             if (currentAnc != null) {
                 _state.value = currentState
                     .withSetting(AapSetting.AncMode::class, currentAnc.copy(current = command.mode))
-                    .copy(pendingAncMode = null, lastMessageAt = Instant.now())
+                    .copy(pendingAncMode = null, lastMessageAt = timeSource.now())
             } else {
                 _state.value = currentState.copy(pendingAncMode = null)
             }
@@ -258,11 +260,11 @@ internal class AapConnection(
             is AapCommand.SetDeviceName -> {
                 val currentInfo = baseState.deviceInfo ?: return
                 _state.value = baseState
-                    .copy(deviceInfo = currentInfo.copy(name = command.name), lastMessageAt = Instant.now())
+                    .copy(deviceInfo = currentInfo.copy(name = command.name), lastMessageAt = timeSource.now())
                 return
             }
         }
-        _state.value = baseState.withSetting(updated.first, updated.second).copy(lastMessageAt = Instant.now())
+        _state.value = baseState.withSetting(updated.first, updated.second).copy(lastMessageAt = timeSource.now())
     }
 
     private suspend fun sendRaw(command: AapCommand) {
@@ -272,7 +274,7 @@ internal class AapConnection(
                 val sock = socket ?: throw IOException("Socket is null")
                 sock.outputStream.write(bytes)
                 sock.outputStream.flush()
-                if (command is AapCommand.SetAncMode) lastAncCommandSentAt = System.currentTimeMillis()
+                if (command is AapCommand.SetAncMode) lastAncCommandSentAt = timeSource.currentTimeMillis()
                 log(TAG) { "Sent command: $command (${bytes.size} bytes)" }
             }
         }
@@ -360,7 +362,7 @@ internal class AapConnection(
             val valid = batteries.filterValues { it.charging != AapPodState.ChargingState.DISCONNECTED }
             _state.value = _state.value.copy(
                 batteries = _state.value.batteries + valid,
-                lastMessageAt = Instant.now(),
+                lastMessageAt = timeSource.now(),
             )
             log(TAG) { "Battery update: ${batteries.entries.map { "${it.key}=${(it.value.percent * 100).toInt()}% ${it.value.charging}" }}" }
             return
@@ -369,14 +371,14 @@ internal class AapConnection(
         // Try private key response
         profile.decodePrivateKeyResponse(message)?.let { keys ->
             log(TAG) { "Private keys received: IRK=${keys.irk != null}, ENC=${keys.encKey != null}" }
-            _state.value = _state.value.copy(lastMessageAt = Instant.now())
+            _state.value = _state.value.copy(lastMessageAt = timeSource.now())
             _keysReceived.tryEmit(keys)
             return
         }
 
         // Try device info
         profile.decodeDeviceInfo(message)?.let { info ->
-            _state.value = _state.value.copy(deviceInfo = info, lastMessageAt = Instant.now())
+            _state.value = _state.value.copy(deviceInfo = info, lastMessageAt = timeSource.now())
             log(TAG) { "Device info: ${info.name} (${info.modelNumber})" }
             return
         }
@@ -387,10 +389,10 @@ internal class AapConnection(
             // Skip debounce for: first ANC mode (initial setup), echoes after our own command.
             if (value is AapSetting.AncMode) {
                 val isFirstAncMode = _state.value.setting<AapSetting.AncMode>() == null
-                val sinceLastCommand = System.currentTimeMillis() - lastAncCommandSentAt
+                val sinceLastCommand = timeSource.currentTimeMillis() - lastAncCommandSentAt
                 if (isFirstAncMode || sinceLastCommand <= 3000L) {
                     ancDebounceJob?.cancel()
-                    _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+                    _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = timeSource.now())
                     log(TAG) { "Setting: ${key.simpleName} = $value" }
 
                     // After our command, firmware may cycle through modes before settling.
@@ -413,7 +415,7 @@ internal class AapConnection(
                     ancDebounceJob?.cancel()
                     ancDebounceJob = connectionScope?.launch {
                         delay(1500L)
-                        _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+                        _state.value = _state.value.withSetting(key, value).copy(lastMessageAt = timeSource.now())
                         log(TAG) { "Setting (debounced): ${key.simpleName} = $value" }
                     }
                 }
@@ -426,7 +428,7 @@ internal class AapConnection(
                 prev != null && prev.primaryPod == value.secondaryPod && prev.secondaryPod == value.primaryPod
             }
 
-            var newState = _state.value.withSetting(key, value).copy(lastMessageAt = Instant.now())
+            var newState = _state.value.withSetting(key, value).copy(lastMessageAt = timeSource.now())
             if (clearPrimaryPod) {
                 newState = newState.copy(settings = newState.settings - AapSetting.PrimaryPod::class)
             }
@@ -442,7 +444,7 @@ internal class AapConnection(
                     if (currentAnc != null) {
                         _state.value = _state.value
                             .withSetting(AapSetting.AncMode::class, currentAnc.copy(current = mode))
-                            .copy(pendingAncMode = null, lastMessageAt = Instant.now())
+                            .copy(pendingAncMode = null, lastMessageAt = timeSource.now())
                     } else {
                         _state.value = _state.value.copy(pendingAncMode = null)
                     }

app/src/main/java/eu/darken/capod/pods/core/apple/aap/AapConnectionManager.kt

@@ -1,6 +1,7 @@
 package eu.darken.capod.pods.core.apple.aap
 
 import android.bluetooth.BluetoothDevice
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
@@ -37,6 +38,7 @@ import javax.inject.Singleton
 class AapConnectionManager @Inject constructor(
     private val socketFactory: L2capSocketFactory,
     @AppScope private val scope: CoroutineScope,
+    private val timeSource: TimeSource,
 ) {
     companion object {
         private val TAG = logTag("AapConnectionMgr")
@@ -77,7 +79,7 @@ class AapConnectionManager @Inject constructor(
         intentionalDisconnects.remove(address)
 
         val profile = AapDeviceProfile.Companion.forModel(model)
-        val connection = AapConnection(device, profile, socketFactory)
+        val connection = AapConnection(device, profile, socketFactory, timeSource = timeSource)
         connections[address] = connection
 
         try {

app/src/main/java/eu/darken/capod/pods/core/apple/ble/BlePodSnapshot.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble
 
 import android.content.Context
 import androidx.annotation.DrawableRes
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
@@ -53,7 +54,7 @@ interface BlePodSnapshot {
         get() {
             val sqRssi = ((rssi + 100) / 70f).coerceIn(0f, 1f)
             val sqReliability = max(BASE_CONFIDENCE, reliability)
-            val sqAge = (Duration.between(seenFirstAt, Instant.now()).toMinutes().coerceAtMost(60) / 60f) * 0.25f
+            val sqAge = (Duration.between(seenFirstAt, SystemTimeSource.now()).toMinutes().coerceAtMost(60) / 60f) * 0.25f
             log(VERBOSE) { "Signal Quality ($address): rssi=$sqRssi, reliability=$reliability, age=$sqAge" }
             return (sqRssi + sqReliability + sqAge) / 2f
         }
@@ -84,4 +85,4 @@ interface BlePodSnapshot {
     companion object {
         const val BASE_CONFIDENCE = 0.0f
     }
-}
+}

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsGen1.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class AirPodsGen1(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsGen2.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class AirPodsGen2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsGen3.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class AirPodsGen3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsGen4.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class AirPodsGen4(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsGen4Anc.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class AirPodsGen4Anc(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsMax.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.isBitSet
@@ -20,8 +21,8 @@ import javax.inject.Inject
 
 data class AirPodsMax(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsMax2.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.isBitSet
@@ -20,8 +21,8 @@ import javax.inject.Inject
 
 data class AirPodsMax2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsMaxUsbc.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.isBitSet
@@ -20,8 +21,8 @@ import javax.inject.Inject
 
 data class AirPodsMaxUsbc(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsPro.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -19,8 +20,8 @@ import javax.inject.Inject
 
 data class AirPodsPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsPro2.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -19,8 +20,8 @@ import javax.inject.Inject
 
 data class AirPodsPro2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsPro2Usbc.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -19,8 +20,8 @@ import javax.inject.Inject
 
 data class AirPodsPro2Usbc(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/airpods/AirPodsPro3.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.airpods
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -19,8 +20,8 @@ import javax.inject.Inject
 
 data class AirPodsPro3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsFitPro.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class BeatsFitPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsFlex.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsFlex(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsSolo3.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsSolo3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsSolo4.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsSolo4(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsSoloBuds.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class BeatsSoloBuds(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsSoloPro.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsSoloPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsStudio3.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsStudio3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsStudioBuds.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class BeatsStudioBuds(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsStudioBudsPlus.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class BeatsStudioBudsPlus(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsStudioPro.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsStudioPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/BeatsX.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class BeatsX(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/PowerBeats3.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class PowerBeats3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/PowerBeats4.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.beats
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -17,8 +18,8 @@ import javax.inject.Inject
 
 data class PowerBeats4(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/PowerBeatsPro.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class PowerBeatsPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/beats/PowerBeatsPro2.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.beats
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -18,8 +19,8 @@ import javax.inject.Inject
 
 data class PowerBeatsPro2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/FakeAirPodsGen1.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.misc
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -23,8 +24,8 @@ import javax.inject.Inject
  */
 data class FakeAirPodsGen1(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/FakeAirPodsGen2.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.pods.core.apple.ble.devices.misc
 
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -21,8 +22,8 @@ import javax.inject.Inject
  */
 data class FakeAirPodsGen2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/FakeAirPodsGen3.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.misc
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -25,8 +26,8 @@ import javax.inject.Inject
  */
 data class FakeAirPodsGen3(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/FakeAirPodsPro.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.misc
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -25,8 +26,8 @@ import javax.inject.Inject
  */
 data class FakeAirPodsPro(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/FakeAirPodsPro2.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.misc
 
 import androidx.annotation.DrawableRes
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -26,8 +27,8 @@ import javax.inject.Inject
  */
 data class FakeAirPodsPro2(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/devices/misc/UnknownAppleSnapshotBle.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.devices.misc
 
 import android.content.Context
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -16,8 +17,8 @@ import javax.inject.Inject
 
 data class UnknownAppleSnapshotBle(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val payload: ProximityPayload,

app/src/main/java/eu/darken/capod/pods/core/apple/ble/history/KnownDevice.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.ble.history
 
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.collections.median
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
 import eu.darken.capod.pods.core.apple.ble.devices.ApplePods
 import eu.darken.capod.pods.core.apple.ble.protocol.ProximityPayload
@@ -26,7 +27,7 @@ data class KnownDevice(
         get() {
             if (history.size < 2) return 0f
 
-            val now = Instant.now()
+            val now = SystemTimeSource.now()
 
             val pingInterval = List(history.dropLast(1).size) { index ->
                 Duration.between(history[index].seenLastAt, history[index + 1].seenLastAt).toMillis()
@@ -45,7 +46,7 @@ data class KnownDevice(
         }
 
     fun rssiSmoothed(latest: Int): Int {
-        val now = Instant.now()
+        val now = SystemTimeSource.now()
         return history
             .filter { Duration.between(it.seenLastAt, now) < LOOKBACK }
             .map { it.rssi }
@@ -54,7 +55,7 @@ data class KnownDevice(
     }
 
     fun isOlderThan(age: Duration): Boolean {
-        val now = Instant.now()
+        val now = SystemTimeSource.now()
         return Duration.between(history.last().seenLastAt, now) > age
     }
 
@@ -65,4 +66,4 @@ data class KnownDevice(
         const val MAX_HISTORY = 60
         val LOOKBACK = Duration.ofSeconds(30)
     }
-}
+}

app/src/main/java/eu/darken/capod/pods/core/unknown/UnknownDeviceFactory.kt

@@ -1,6 +1,7 @@
 package eu.darken.capod.pods.core.unknown
 
 import eu.darken.capod.common.bluetooth.BleScanResult
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.debug.logging.Logging.Priority.VERBOSE
 import eu.darken.capod.common.debug.logging.log
 import eu.darken.capod.common.debug.logging.logTag
@@ -56,7 +57,7 @@ class UnknownDeviceFactory @Inject constructor() {
             history.map { it.rssi }.plus(latest).takeLast(10).median()
 
         fun isOlderThan(age: Duration): Boolean {
-            val now = Instant.now()
+            val now = SystemTimeSource.now()
             return Duration.between(history.last().seenLastAt, now) > age
         }
 
@@ -130,4 +131,4 @@ class UnknownDeviceFactory @Inject constructor() {
     companion object {
         private val TAG = logTag("Pod", "Unknown", "Factory")
     }
-}
+}

app/src/main/java/eu/darken/capod/pods/core/unknown/UnknownSnapshotBle.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.unknown
 
 import android.content.Context
 import eu.darken.capod.R
+import eu.darken.capod.common.SystemTimeSource
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.pods.core.apple.ble.BlePodSnapshot
@@ -11,8 +12,8 @@ import java.time.Instant
 
 data class UnknownSnapshotBle(
     override val identifier: BlePodSnapshot.Id = BlePodSnapshot.Id(),
-    override val seenLastAt: Instant = Instant.now(),
-    override val seenFirstAt: Instant = Instant.now(),
+    override val seenLastAt: Instant = SystemTimeSource.now(),
+    override val seenFirstAt: Instant = SystemTimeSource.now(),
     override val seenCounter: Int = 1,
     override val scanResult: BleScanResult,
     override val reliability: Float = 0f,
@@ -34,4 +35,4 @@ data class UnknownSnapshotBle(
     companion object {
         private val TAG = logTag("PodDevice", "Unknown")
     }
-}
+}

app/src/main/java/eu/darken/capod/reaction/core/popup/PopUpReaction.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.reaction.core.popup
 
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 import eu.darken.capod.common.bluetooth.BluetoothManager2
@@ -26,6 +27,7 @@ import javax.inject.Singleton
 class PopUpReaction @Inject constructor(
     private val deviceMonitor: DeviceMonitor,
     private val bluetoothManager: BluetoothManager2,
+    private val timeSource: TimeSource,
 ) {
 
     private val caseCoolDowns = java.util.concurrent.ConcurrentHashMap<String, Instant>()
@@ -45,7 +47,7 @@ class PopUpReaction @Inject constructor(
             // with the toggle off). Dismiss any visible overlay immediately.
             if (wasEligible && !isEligible) {
                 log(TAG) { "Case popup eligibility lost, emitting Hide" }
-                return@mapNotNull Event.PopupHide()
+                return@mapNotNull Event.PopupHide(timeSource.now())
             }
 
             if (!isEligible) return@mapNotNull null
@@ -71,7 +73,7 @@ class PopUpReaction @Inject constructor(
 
     private fun throttleCasePopUps(current: PodDevice): Event? {
         val cooldownKey = current.profileId ?: current.identifier?.toString() ?: return null
-        val now = Instant.now()
+        val now = timeSource.now()
         val lastShown = caseCoolDowns[cooldownKey]
 
         val decision = evaluateCasePopUp(
@@ -89,14 +91,14 @@ class PopUpReaction @Inject constructor(
         return when {
             decision.shouldShow -> {
                 caseCoolDowns[cooldownKey] = now
-                Event.PopupShow(device = current)
+                Event.PopupShow(eventAt = now, device = current)
             }
 
             decision.shouldHide -> {
                 if (!decision.shouldResetCooldown) {
                     caseCoolDowns[cooldownKey] = now
                 }
-                Event.PopupHide()
+                Event.PopupHide(now)
             }
 
             else -> null
@@ -142,7 +144,7 @@ class PopUpReaction @Inject constructor(
             // Eligibility transition: dismiss any visible overlay immediately.
             if (wasEligible && !isEligible) {
                 log(TAG) { "Connection popup eligibility lost, emitting Hide" }
-                return@mapNotNull Event.PopupHide()
+                return@mapNotNull Event.PopupHide(timeSource.now())
             }
 
             if (!isEligible) return@mapNotNull null
@@ -157,7 +159,7 @@ class PopUpReaction @Inject constructor(
             log(TAG, VERBOSE) { "currentBroadcasted: $currentBroadcasted" }
 
             if (previousConnected != null && previousBroadcasted != null && currentConnected == null) {
-                return@mapNotNull Event.PopupHide()
+                return@mapNotNull Event.PopupHide(timeSource.now())
             }
 
             if (currentConnected == null || currentBroadcasted == null) {
@@ -165,8 +167,9 @@ class PopUpReaction @Inject constructor(
             }
 
             val deviceSeenFirst = currentBroadcasted.seenFirstAt ?: return@mapNotNull null
-            val deviceAge = Duration.between(deviceSeenFirst, Instant.now())
-            val connectionAge = Duration.between(currentConnected.seenFirstAt, Instant.now())
+            val now = timeSource.now()
+            val deviceAge = Duration.between(deviceSeenFirst, now)
+            val connectionAge = Duration.between(currentConnected.seenFirstAt, now)
 
             val decision = evaluateConnectionPopUp(
                 hasConnectedDevice = true,
@@ -179,8 +182,8 @@ class PopUpReaction @Inject constructor(
             log(TAG) { "Connection popup decision: ${decision.reason}" }
 
             if (decision.shouldShow) {
-                connectionCoolDowns[currentConnected.address] = Instant.now()
-                Event.PopupShow(device = currentBroadcasted)
+                connectionCoolDowns[currentConnected.address] = now
+                Event.PopupShow(eventAt = now, device = currentBroadcasted)
             } else {
                 null
             }
@@ -191,12 +194,12 @@ class PopUpReaction @Inject constructor(
 
     sealed class Event {
         data class PopupShow(
-            val eventAt: Instant = Instant.now(),
+            val eventAt: Instant,
             val device: PodDevice,
         ) : Event()
 
         data class PopupHide(
-            val eventAt: Instant = Instant.now(),
+            val eventAt: Instant,
         ) : Event()
     }
 

app/src/main/java/eu/darken/capod/troubleshooter/ui/TroubleShooterViewModel.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import dagger.hilt.android.lifecycle.HiltViewModel
 import dagger.hilt.android.qualifiers.ApplicationContext
 import eu.darken.capod.R
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.ScannerMode
 import eu.darken.capod.common.coroutine.DispatcherProvider
 import eu.darken.capod.common.datastore.valueBlocking
@@ -41,6 +42,7 @@ class TroubleShooterViewModel @Inject constructor(
     private val blePodMonitor: BlePodMonitor,
     private val deviceMonitor: DeviceMonitor,
     private val debugSettings: DebugSettings,
+    private val timeSource: TimeSource,
 ) : ViewModel4(dispatcherProvider) {
 
     private val _bleState = MutableStateFlow<BleState>(BleState.Intro())
@@ -113,11 +115,11 @@ class TroubleShooterViewModel @Inject constructor(
                 generalSettings.useIndirectScanResultCallback.valueBlocking = indirectCallback
                 debugSettings.showUnfiltered.valueBlocking = unfiltered
 
-                val start = System.currentTimeMillis()
+                val start = timeSource.elapsedRealtime()
                 val devices = withTimeoutOrNull(STEP_TIME) {
                     blePodMonitor.devices
                         .take(10)
-                        .takeWhile { System.currentTimeMillis() - start < STEP_TIME - 1000 }
+                        .takeWhile { timeSource.elapsedRealtime() - start < STEP_TIME - 1000 }
                         .toList()
                         .flatten()
                         .distinctBy { it.address }
@@ -195,10 +197,10 @@ class TroubleShooterViewModel @Inject constructor(
             progress("Checking all closeby headphones.")
 
             val otherDevices = withTimeoutOrNull(STEP_TIME) {
-                val start = System.currentTimeMillis()
+                val start = timeSource.elapsedRealtime()
                 blePodMonitor.devices
                     .take(10)
-                    .takeWhile { System.currentTimeMillis() - start < STEP_TIME - 1000 }
+                    .takeWhile { timeSource.elapsedRealtime() - start < STEP_TIME - 1000 }
                     .toList()
                     .flatten()
                     .distinctBy { it.address }

app/src/test/java/eu/darken/capod/common/MediaControlTest.kt

@@ -1,41 +1,35 @@
 package eu.darken.capod.common
 
 import android.media.AudioManager
-import android.os.SystemClock
 import io.mockk.Runs
 import io.mockk.clearMocks
 import io.mockk.every
 import io.mockk.just
 import io.mockk.mockk
-import io.mockk.mockkStatic
-import io.mockk.unmockkStatic
 import io.mockk.verify
-import org.junit.jupiter.api.AfterEach
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Assertions.assertFalse
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 
 class MediaControlTest : BaseTest() {
 
     private lateinit var audioManager: AudioManager
     private lateinit var mediaControl: MediaControl
+    private lateinit var timeSource: TestTimeSource
 
     @BeforeEach
     fun setup() {
-        mockkStatic(SystemClock::class)
-        every { SystemClock.elapsedRealtime() } returns 1_000L
-        every { SystemClock.uptimeMillis() } returns 1_000L
+        timeSource = TestTimeSource(
+            elapsedRealtimeMs = 1_000L,
+            uptimeMillisValue = 1_000L,
+        )
         audioManager = mockk(relaxed = true)
         every { audioManager.dispatchMediaKeyEvent(any()) } just Runs
-        mediaControl = MediaControl(audioManager)
-    }
-
-    @AfterEach
-    fun teardown() {
-        unmockkStatic(SystemClock::class)
+        mediaControl = MediaControl(audioManager, timeSource)
     }
 
     @Test

app/src/test/java/eu/darken/capod/main/ui/devicesettings/DeviceSettingsViewModelTest.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.main.ui.devicesettings
 
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 import eu.darken.capod.common.bluetooth.BluetoothManager2
@@ -36,6 +37,7 @@ import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 import testhelpers.coroutine.TestDispatcherProvider
 import testhelpers.livedata.InstantExecutorExtension
 
@@ -53,6 +55,7 @@ class DeviceSettingsViewModelTest : BaseTest() {
     private lateinit var bluetoothManager: BluetoothManager2
     private lateinit var profilesRepo: DeviceProfilesRepo
     private lateinit var generalSettings: GeneralSettings
+    private val timeSource: TimeSource = TestTimeSource()
 
     private lateinit var devicesFlow: MutableStateFlow<List<PodDevice>>
     private lateinit var upgradeInfoFlow: MutableStateFlow<UpgradeRepo.Info>
@@ -107,6 +110,7 @@ class DeviceSettingsViewModelTest : BaseTest() {
         bluetoothManager = bluetoothManager,
         profilesRepo = profilesRepo,
         generalSettings = generalSettings,
+        timeSource = timeSource,
     )
 
     @Test

app/src/test/java/eu/darken/capod/main/ui/overview/OverviewViewModelTest.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.main.ui.overview
 
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BluetoothDevice2
 import eu.darken.capod.common.bluetooth.BluetoothManager2
 import eu.darken.capod.common.debug.DebugSettings
@@ -34,6 +35,7 @@ import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 import testhelpers.coroutine.TestDispatcherProvider
 import testhelpers.datastore.FakeDataStoreValue
 import testhelpers.livedata.InstantExecutorExtension
@@ -52,6 +54,7 @@ class OverviewViewModelTest : BaseTest() {
     private lateinit var upgradeRepo: UpgradeRepo
     private lateinit var bluetoothManager: BluetoothManager2
     private lateinit var profilesRepo: DeviceProfilesRepo
+    private val timeSource: TimeSource = TestTimeSource()
 
     private lateinit var missingPermissionsFlow: MutableStateFlow<Set<Permission>>
     private lateinit var devicesFlow: MutableStateFlow<List<PodDevice>>
@@ -126,6 +129,7 @@ class OverviewViewModelTest : BaseTest() {
         bluetoothManager = bluetoothManager,
         profilesRepo = profilesRepo,
         aapManager = mockk(relaxed = true),
+        timeSource = timeSource,
     )
 
     @Nested

app/src/test/java/eu/darken/capod/monitor/core/DeviceMonitorTest.kt

@@ -1,5 +1,6 @@
 package eu.darken.capod.monitor.core
 
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.BluetoothAddress
 import eu.darken.capod.monitor.core.aap.AapLifecycleManager
 import eu.darken.capod.monitor.core.ble.BlePodMonitor
@@ -26,12 +27,14 @@ import kotlinx.coroutines.test.UnconfinedTestDispatcher
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.Test
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 import java.time.Instant
 
 @OptIn(ExperimentalCoroutinesApi::class)
 class DeviceMonitorTest : BaseTest() {
 
     private val testDispatcher = UnconfinedTestDispatcher()
+    private val timeSource: TimeSource = TestTimeSource(wallNow = Instant.parse("2026-04-05T18:00:00Z"))
 
     private val testAddress: BluetoothAddress = "AA:BB:CC:DD:EE:FF"
     private val testProfile = AppleDeviceProfile(
@@ -135,6 +138,7 @@ class DeviceMonitorTest : BaseTest() {
             deviceStateCache = deviceStateCache,
             profilesRepo = profilesRepo,
             aapLifecycleManager = aapLifecycleManager,
+            timeSource = timeSource,
         )
     }
 

app/src/test/java/eu/darken/capod/pods/core/apple/aap/AapConnectionManagerTest.kt

@@ -2,6 +2,7 @@ package eu.darken.capod.pods.core.apple.aap
 
 import android.bluetooth.BluetoothDevice
 import android.bluetooth.BluetoothSocket
+import eu.darken.capod.common.TimeSource
 import eu.darken.capod.common.bluetooth.l2cap.L2capSocketFactory
 import eu.darken.capod.pods.core.apple.PodModel
 import eu.darken.capod.pods.core.apple.aap.protocol.AapCommand
@@ -20,6 +21,7 @@ import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 import java.io.ByteArrayInputStream
 import java.io.ByteArrayOutputStream
 import java.io.IOException
@@ -32,6 +34,7 @@ class AapConnectionManagerTest : BaseTest() {
 
     private lateinit var socketFactory: L2capSocketFactory
     private lateinit var manager: AapConnectionManager
+    private val timeSource: TimeSource = TestTimeSource()
 
     private val testAddress = "AA:BB:CC:DD:EE:FF"
     private val testDevice: BluetoothDevice = mockk(relaxed = true) {
@@ -44,6 +47,7 @@ class AapConnectionManagerTest : BaseTest() {
         manager = AapConnectionManager(
             socketFactory = socketFactory,
             scope = testScope,
+            timeSource = timeSource,
         )
     }
 

app/src/test/java/eu/darken/capod/pods/core/apple/ble/devices/BaseBlePodsTest.kt

@@ -2,7 +2,6 @@ package eu.darken.capod.pods.core.apple.ble.devices
 
 import dagger.BindsInstance
 import dagger.Component
-import eu.darken.capod.common.SystemClockWrap
 import eu.darken.capod.common.bluetooth.BleScanResult
 import eu.darken.capod.common.fromHex
 import eu.darken.capod.common.serialization.SerializationModule
@@ -15,9 +14,6 @@ import eu.darken.capod.profiles.core.DeviceProfilesRepo
 import io.mockk.MockKAnnotations
 import io.mockk.every
 import io.mockk.mockk
-import io.mockk.mockkObject
-import io.mockk.unmockkObject
-import org.junit.jupiter.api.AfterEach
 import kotlinx.coroutines.flow.flowOf
 import org.junit.jupiter.api.BeforeEach
 import testhelpers.BaseTest
@@ -59,14 +55,6 @@ abstract class BaseBlePodsTest : BaseTest() {
     @BeforeEach
     fun setup() {
         MockKAnnotations.init(this)
-
-        mockkObject(SystemClockWrap)
-        every { SystemClockWrap.elapsedRealtimeNanos } returns 1000L
-    }
-
-    @AfterEach
-    fun teardown() {
-        unmockkObject(SystemClockWrap)
     }
 
     internal suspend inline fun <reified T : BlePodSnapshot?> create(
@@ -75,7 +63,7 @@ abstract class BaseBlePodsTest : BaseTest() {
         block: T.() -> Unit
     ) {
         val result = BleScanResult(
-            receivedAt = Instant.now(),
+            receivedAt = Instant.parse("2026-01-01T00:00:00Z"),
             address = address,
             rssi = -66,
             generatedAtNanos = 136136027721826,

app/src/test/java/eu/darken/capod/reaction/core/popup/PopUpReactionLogicTest.kt

@@ -7,6 +7,7 @@ import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
 import testhelpers.BaseTest
+import testhelpers.TestTimeSource
 import java.time.Duration
 import java.time.Instant
 
@@ -19,6 +20,7 @@ class PopUpReactionLogicTest : BaseTest() {
         popUpReaction = PopUpReaction(
             deviceMonitor = mockk(relaxed = true),
             bluetoothManager = mockk(relaxed = true),
+            timeSource = TestTimeSource(),
         )
     }
 

app/src/test/java/testhelpers/TestTimeSource.kt

@@ -0,0 +1,30 @@
+package testhelpers
+
+import eu.darken.capod.common.TimeSource
+import java.time.Duration
+import java.time.Instant
+
+class TestTimeSource(
+    var wallNow: Instant = Instant.parse("2026-01-01T00:00:00Z"),
+    var elapsedRealtimeMs: Long = 0L,
+    var elapsedRealtimeNanosValue: Long = 0L,
+    var uptimeMillisValue: Long = 0L,
+) : TimeSource {
+
+    override fun now(): Instant = wallNow
+
+    override fun currentTimeMillis(): Long = wallNow.toEpochMilli()
+
+    override fun elapsedRealtime(): Long = elapsedRealtimeMs
+
+    override fun elapsedRealtimeNanos(): Long = elapsedRealtimeNanosValue
+
+    override fun uptimeMillis(): Long = uptimeMillisValue
+
+    fun advanceBy(duration: Duration) {
+        wallNow = wallNow.plus(duration)
+        elapsedRealtimeMs += duration.toMillis()
+        elapsedRealtimeNanosValue += duration.toNanos()
+        uptimeMillisValue += duration.toMillis()
+    }
+}