feat: add first call notification

app/src/main/java/org/thoughtcrime/securesms/util/CallNotificationBuilder.kt

@@ -11,6 +11,7 @@ import network.loki.messenger.R
 import org.session.libsession.utilities.recipients.Recipient
 import org.thoughtcrime.securesms.calls.WebRtcCallActivity
 import org.thoughtcrime.securesms.notifications.NotificationChannels
+import org.thoughtcrime.securesms.preferences.SettingsActivity
 import org.thoughtcrime.securesms.service.WebRtcCallService
 
 class CallNotificationBuilder {
@@ -24,6 +25,26 @@ class CallNotificationBuilder {
         const val TYPE_INCOMING_CONNECTING = 4
         const val TYPE_INCOMING_PRE_OFFER = 5
 
+        @JvmStatic
+        fun getFirstCallNotification(context: Context): Notification {
+            val contentIntent = Intent(context, SettingsActivity::class.java)
+
+            val pendingIntent = PendingIntent.getActivity(context, 0, contentIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
+
+            val text = context.getString(R.string.CallNotificationBuilder_first_call_message)
+
+            val builder = NotificationCompat.Builder(context, NotificationChannels.CALLS)
+                .setSound(null)
+                .setSmallIcon(R.drawable.ic_baseline_call_24)
+                .setContentIntent(pendingIntent)
+                .setPriority(NotificationCompat.PRIORITY_HIGH)
+                .setContentTitle(context.getString(R.string.CallNotificationBuilder_first_call_title))
+                .setContentText(text)
+                .setStyle(NotificationCompat.BigTextStyle().bigText(text))
+
+            return builder.build()
+        }
+
         @JvmStatic
         fun getCallInProgressNotification(context: Context, type: Int, recipient: Recipient?): Notification {
             val contentIntent = Intent(context, WebRtcCallActivity::class.java)

app/src/main/java/org/thoughtcrime/securesms/webrtc/CallMessageProcessor.kt

@@ -1,5 +1,6 @@
 package org.thoughtcrime.securesms.webrtc
 
+import android.app.NotificationManager
 import android.content.Context
 import androidx.core.content.ContextCompat
 import androidx.lifecycle.Lifecycle
@@ -16,6 +17,7 @@ import org.session.libsession.utilities.TextSecurePreferences
 import org.session.libsignal.protos.SignalServiceProtos.CallMessage.Type.*
 import org.session.libsignal.utilities.Log
 import org.thoughtcrime.securesms.service.WebRtcCallService
+import org.thoughtcrime.securesms.util.CallNotificationBuilder
 import org.webrtc.IceCandidate
 
 
@@ -31,6 +33,11 @@ class CallMessageProcessor(private val context: Context, lifecycle: Lifecycle, p
                     if (nextMessage.type != PRE_OFFER) continue
                     val sentTimestamp = nextMessage.sentTimestamp ?: continue
                     val sender = nextMessage.sender ?: continue
+                    if (TextSecurePreferences.setShownCallNotification(context)) {
+                        // first time call notification encountered
+                        val notification = CallNotificationBuilder.getFirstCallNotification(context)
+                        context.getSystemService(NotificationManager::class.java).notify(CallNotificationBuilder.WEBRTC_NOTIFICATION, notification)
+                    }
                     insertMissedCall(sender, sentTimestamp)
                     continue
                 }

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

@@ -917,5 +917,7 @@
     <string name="preferences__allow_access_voice_video">Allow access to accept voice and video calls from other users</string>
     <string name="dialog_voice_video_title">Voice / video calls</string>
     <string name="dialog_voice_video_message">The current implementation of voice / video calls will expose your IP address to the Oxen Foundation servers and the calling / called user</string>
+    <string name="CallNotificationBuilder_first_call_title">Call Missed</string>
+    <string name="CallNotificationBuilder_first_call_message">You missed a call because you need to enable the \'Voice and video calls\' permission in the Privacy Settings.</string>
 
 </resources>

libsession/src/main/java/org/session/libsession/utilities/TextSecurePreferences.kt

@@ -90,7 +90,8 @@ object TextSecurePreferences {
     private const val LAST_PROFILE_UPDATE_TIME = "pref_last_profile_update_time"
     private const val LAST_OPEN_DATE = "pref_last_open_date"
     const val CALL_NOTIFICATIONS_ENABLED = "pref_call_notifications_enabled"
-    private const val SHOWN_CALL_WARNING = "pref_shown_call_warning"
+    private const val SHOWN_CALL_WARNING = "pref_shown_call_warning" // call warning is user-facing warning of enabling calls
+    private const val SHOWN_CALL_NOTIFICATION = "pref_shown_call_notification" // call notification is a promp to check privacy settings
 
     @JvmStatic
     fun getLastConfigurationSyncTime(context: Context): Long {
@@ -744,6 +745,15 @@ object TextSecurePreferences {
         return getBooleanPreference(context, CALL_NOTIFICATIONS_ENABLED, false)
     }
 
+    @JvmStatic
+    fun setShownCallNotification(context: Context): Boolean {
+        val previousValue = getBooleanPreference(context, SHOWN_CALL_NOTIFICATION, false)
+        if (previousValue) return false
+        val setValue = true
+        setBooleanPreference(context, SHOWN_CALL_NOTIFICATION, setValue)
+        return previousValue != setValue
+    }
+
 
     /**
      * Set the SHOWN_CALL_WARNING preference to `true`