fix: Show key icon for single-pod devices when encryption keys are set

app/src/main/java/eu/darken/capod/common/compose/preview/MockPodDataProvider.kt

@@ -15,6 +15,8 @@ import eu.darken.capod.pods.core.PodDevice
 import eu.darken.capod.pods.core.SinglePodDevice
 import eu.darken.capod.pods.core.unknown.UnknownDevice
 import eu.darken.capod.profiles.core.AppleDeviceProfile
+import eu.darken.capod.pods.core.apple.ApplePods
+import eu.darken.capod.pods.core.apple.protocol.ProximityPayload
 import eu.darken.capod.profiles.core.DeviceProfile
 import java.time.Instant
 
@@ -114,11 +116,13 @@ object MockPodDataProvider {
         _isBeingWorn = true,
     )
 
-    fun airPodsMaxCharging(): SinglePodDevice = MockSinglePodDevice(
+    fun airPodsMaxCharging(): SinglePodDevice = MockSingleApplePodDevice(
         _model = PodDevice.Model.AIRPODS_MAX,
         _label = "AirPods Max",
         batteryHeadsetPercent = 0.40f,
         _isHeadsetBeingCharged = true,
+        _isIRKMatch = true,
+        _hasPrivatePayload = true,
     )
 
     fun beatsSolo3(): SinglePodDevice = MockSinglePodDevice(
@@ -273,3 +277,41 @@ private class MockSinglePodDevice(
     // HasEarDetection
     override val isBeingWorn: Boolean = _isBeingWorn
 }
+
+@Suppress("PropertyName")
+private class MockSingleApplePodDevice(
+    private val _model: PodDevice.Model,
+    private val _label: String,
+    override val batteryHeadsetPercent: Float?,
+    private val _isHeadsetBeingCharged: Boolean = false,
+    private val _isBeingWorn: Boolean = false,
+    private val _isIRKMatch: Boolean = false,
+    private val _hasPrivatePayload: Boolean = false,
+    rssi: Int = -50,
+) : SinglePodDevice, ApplePods, HasChargeDetection, HasEarDetection {
+    override val identifier: PodDevice.Id = PodDevice.Id()
+    override val model: PodDevice.Model = _model
+    override val seenLastAt: Instant = MOCK_NOW
+    override val seenFirstAt: Instant = MOCK_NOW
+    override val seenCounter: Int = 5
+    override val scanResult: BleScanResult = MockPodDataProvider.dummyScanResult(rssi)
+    override val reliability: Float = 1.0f
+    override val signalQuality: Float = 0.80f
+    override val iconRes: Int = _model.iconRes
+    override val meta: ApplePods.AppleMeta = ApplePods.AppleMeta(
+        isIRKMatch = _isIRKMatch,
+        profile = AppleDeviceProfile(label = _label, model = _model),
+    )
+    override val payload: ProximityPayload = ProximityPayload(
+        public = ProximityPayload.Public(UByteArray(9)),
+        private = if (_hasPrivatePayload) ProximityPayload.Private(UByteArray(8)) else null,
+    )
+
+    override fun getLabel(context: Context): String = _model.label
+
+    // HasChargeDetection
+    override val isHeadsetBeingCharged: Boolean = _isHeadsetBeingCharged
+
+    // HasEarDetection
+    override val isBeingWorn: Boolean = _isBeingWorn
+}

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

@@ -19,9 +19,12 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Key
 import androidx.compose.material.icons.twotone.BatteryChargingFull
 import androidx.compose.material.icons.twotone.Hearing
+import androidx.compose.material.icons.twotone.Key
 import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.Icon
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.ElevatedCard
 import androidx.compose.material3.MaterialTheme
@@ -44,6 +47,7 @@ import eu.darken.capod.common.compose.preview.MockPodDataProvider
 import eu.darken.capod.pods.core.HasChargeDetection
 import eu.darken.capod.pods.core.HasEarDetection
 import eu.darken.capod.pods.core.SinglePodDevice
+import eu.darken.capod.pods.core.apple.ApplePods
 import eu.darken.capod.pods.core.firstSeenFormatted
 import eu.darken.capod.pods.core.formatBatteryPercent
 import eu.darken.capod.pods.core.getSignalQuality
@@ -98,12 +102,23 @@ fun SinglePodsCard(
                 Spacer(modifier = Modifier.width(12.dp))
 
                 Column(modifier = Modifier.weight(1f)) {
-                    Text(
-                        text = device.meta.profile?.label ?: "?",
-                        style = MaterialTheme.typography.titleMedium,
-                        maxLines = 1,
-                        overflow = TextOverflow.Ellipsis,
-                    )
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text(
+                            text = device.meta.profile?.label ?: "?",
+                            style = MaterialTheme.typography.titleMedium,
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                        )
+                        if (device is ApplePods && device.meta.isIRKMatch) {
+                            Spacer(modifier = Modifier.width(6.dp))
+                            Icon(
+                                imageVector = if (device.payload.private != null) Icons.TwoTone.Key else Icons.Outlined.Key,
+                                contentDescription = null,
+                                modifier = Modifier.size(14.dp),
+                                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                            )
+                        }
+                    }
                     Text(
                         text = device.getLabel(context),
                         style = MaterialTheme.typography.bodySmall,