Implement support for different states in notification text

Fixes #198

Signed-off-by: Ricky Cheung <rcheung844@gmail.com>

app-common/src/main/res/values/strings.xml

@@ -61,6 +61,7 @@
     <string name="pods_microphone_label">Microphone</string>
     <string name="pods_yours">Yours</string>
     <string name="headset_being_worn_label">Being worn</string>
+    <string name="headset_not_being_worn_label">Not being worn</string>
     <string name="pods_case_unknown_state">Unknown state</string>
 
     <string name="last_seen_x">Last seen: %s</string>

app/src/main/java/eu/darken/capod/monitor/ui/MonitorNotifications.kt

@@ -8,6 +8,7 @@ import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.content.pm.ServiceInfo
+import androidx.annotation.StringRes
 import androidx.core.app.NotificationCompat
 import androidx.work.ForegroundInfo
 import dagger.hilt.android.qualifiers.ApplicationContext
@@ -19,6 +20,10 @@ import eu.darken.capod.common.debug.logging.logTag
 import eu.darken.capod.common.hasApiLevel
 import eu.darken.capod.common.notifications.PendingIntentCompat
 import eu.darken.capod.main.ui.MainActivity
+import eu.darken.capod.pods.core.HasCase
+import eu.darken.capod.pods.core.HasChargeDetection
+import eu.darken.capod.pods.core.HasDualMicrophone
+import eu.darken.capod.pods.core.HasEarDetection
 import eu.darken.capod.pods.core.PodDevice
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
@@ -71,9 +76,37 @@ class MonitorNotifications @Inject constructor(
         }
 
         return builder.apply {
+            @StringRes var contentTitleRes = eu.darken.capod.common.R.string.pods_case_unknown_state
+            // Options here should be mutually exclusive, and are prioritized by their order of importance
+            // Some options are omitted here, as they will conflict with other options
+            // TODO: Implement a settings pane to allow user to customize this
+            device.apply {
+                // Pods charging state
+                // This goes first as pods should not be worn if it is still charging
+                if (this is HasChargeDetection && isHeadsetBeingCharged) {
+                    contentTitleRes = eu.darken.capod.common.R.string.pods_charging_label
+                    return@apply
+                }
+
+                // Pods wear state
+                if (this is HasEarDetection) {
+                    contentTitleRes = if (isBeingWorn) eu.darken.capod.common.R.string.headset_being_worn_label
+                        else eu.darken.capod.common.R.string.headset_not_being_worn_label
+                    return@apply
+                }
+
+                // Case charge state
+                // This is under pods wear state as we don't want it conflicting with it
+                if (this is HasCase && isCaseCharging) {
+                    contentTitleRes = eu.darken.capod.common.R.string.pods_charging_label
+                    return@apply
+                }
+            }
+
             setStyle(NotificationCompat.DecoratedCustomViewStyle())
             setCustomContentView(notificationViewFactory.createContentView(device))
             setSmallIcon(device.iconRes)
+            setContentTitle(context.getString(contentTitleRes))
             setSubText(null)
             log(TAG, VERBOSE) { "updatingNotification(): $device" }
         }