allow app to search notifications

app/src/main/AndroidManifest.xml

@@ -99,6 +99,20 @@
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
         </service>
+
+        <service android:name=".receiver.NotificationListener"
+            android:label="@string/notification_listener_service_name"
+            android:exported="false"
+            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
+            <intent-filter>
+                <action android:name="android.service.notification.NotificationListenerService" />
+            </intent-filter>
+            <meta-data
+                android:name="android.service.notification.default_filter_types"
+                android:value="conversations|alerting|ongoing">
+            </meta-data>
+        </service>
+
     </application>
 
 </manifest>

app/src/main/java/de/felixnuesse/timedsilence/fragments/settings/GeneralFragment.kt

@@ -1,12 +1,36 @@
 package de.felixnuesse.timedsilence.fragments.settings
 
+import android.content.Intent
+import android.content.SharedPreferences
 import android.os.Bundle
+import android.provider.Settings
+import androidx.core.content.ContextCompat
 import androidx.preference.PreferenceFragmentCompat
 import de.felixnuesse.timedsilence.R
 
-class GeneralFragment : PreferenceFragmentCompat() {
+class GeneralFragment : PreferenceFragmentCompat(),
+    SharedPreferences.OnSharedPreferenceChangeListener {
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         setPreferencesFromResource(R.xml.general_preferences, rootKey)
     }
+
+    override fun onResume() {
+        super.onResume()
+        preferenceManager.sharedPreferences!!.registerOnSharedPreferenceChangeListener(this)
+    }
+
+    override fun onPause() {
+        preferenceManager.sharedPreferences!!.unregisterOnSharedPreferenceChangeListener(this)
+        super.onPause()
+    }
+
+    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
+        val pref_key = getString(R.string.pref_general_search_notifications)
+        if (key.equals(pref_key)) {
+           if (sharedPreferences?.getBoolean(pref_key, false) == true) {
+               ContextCompat.startActivity(this.requireContext(), Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS), null)
+           }
+        }
+    }
 }

app/src/main/java/de/felixnuesse/timedsilence/handler/PreferencesHolder.kt

@@ -27,4 +27,5 @@ class PreferencesHolder(@Transient val mDefaultVolumeValue: Int = 80) {
     @EncodeDefault var runWhenIdle = true
 
     @EncodeDefault var changeRingerVolume = false
+    @EncodeDefault var shouldSearchNotifications = false
 }

app/src/main/java/de/felixnuesse/timedsilence/handler/PreferencesManager.kt

@@ -77,6 +77,11 @@ class PreferencesManager(private var mContext: Context) {
         mPreferencesEditor.apply()
     }
 
+    fun shouldSearchInNotifications(): Boolean{
+        mPreferencesHolder.shouldSearchNotifications = mPreferences.getBoolean(getKey(R.string.pref_general_search_notifications), mPreferencesHolder.shouldSearchNotifications)
+        return mPreferencesHolder.shouldSearchNotifications
+    }
+
 
     ///////////////////////
     // --- Calendar --- ///

app/src/main/java/de/felixnuesse/timedsilence/receiver/NotificationListener.kt

@@ -0,0 +1,55 @@
+package de.felixnuesse.timedsilence.receiver
+
+
+import android.service.notification.NotificationListenerService
+import android.service.notification.StatusBarNotification
+import android.util.Log
+import de.felixnuesse.timedsilence.Constants
+import de.felixnuesse.timedsilence.extensions.TAG
+import de.felixnuesse.timedsilence.handler.PreferencesManager
+import de.felixnuesse.timedsilence.handler.volume.VolumeHandler
+import de.felixnuesse.timedsilence.handler.volume.VolumeState
+import de.felixnuesse.timedsilence.model.database.DatabaseHandler
+import de.felixnuesse.timedsilence.volumestate.StateGenerator
+
+
+class NotificationListener : NotificationListenerService() {
+
+    private val TAG: String = this.javaClass.simpleName
+
+    override fun onNotificationPosted(notification: StatusBarNotification) {
+        handleNotification(false, notification)
+    }
+
+    override fun onNotificationRemoved(notification: StatusBarNotification) {
+        handleNotification(true, notification)
+    }
+
+    fun handleNotification(isRemove: Boolean, notification: StatusBarNotification) {
+        val proceed = PreferencesManager(this).shouldSearchInNotifications()
+        if(!proceed) {
+            return
+        }
+
+        if(isRemove) {
+            Log.e(TAG(), "NotificationListener: Removed notification, check!")
+            VolumeHandler(this, "NotificationListener").setVolumeStateAndApply(StateGenerator(this).stateAt(System.currentTimeMillis()))
+            return
+        }
+
+        Log.e(TAG(), "NotificationListener: Posted notification, check!")
+
+        val toSearch =  notification.notification.extras.toString()+notification.notification.toString()+notification.toString()
+
+        val db = DatabaseHandler(this)
+        db.getKeywords().forEach {
+            if (toSearch.lowercase().contains(it.keyword.lowercase())) {
+                val state = VolumeState(it.volume)
+                state.setReason(Constants.REASON_MANUALLY_SET, "Keyword ${it.keyword} was found in notification")
+                VolumeHandler(this, "NotificationListener").setVolumeStateAndApply(state)
+                return
+            }
+        }
+    }
+
+}

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

@@ -24,6 +24,7 @@
 
     <string name="pref_general_boot_restart" translatable="false">PREF_BOOT_RESTART</string>
     <string name="pref_general_boot_force_restart" translatable="false">PREF_BOOT_FORCE_RESTART</string>
+    <string name="pref_general_search_notifications" translatable="false">PREF_GENERAL_SEARCH_NOTIFICATIONS</string>
 
 
 

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

@@ -190,4 +190,6 @@
     <string name="dnd_missing_permission_action_title">Fix!</string>
     <string name="bluetooth_missing_permissions">Bluetooth Access not granted.</string>
     <string name="force_restart_checks_after_reboot">When the device restarted, also restart checks, regardless of their pre-reboot-state.</string>
+    <string name="notification_listener_service_name">TimedSilence Notification Listener</string>
+    <string name="use_keywords_for_notifications">Allow Notification content to be searched for keywords</string>
 </resources>

app/src/main/res/xml/general_preferences.xml

@@ -26,6 +26,13 @@
             android:defaultValue="false"
             android:title="@string/force_restart_checks_after_reboot"
             android:key="@string/pref_general_boot_force_restart" />
+
+        <SwitchPreference
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:defaultValue="false"
+            android:title="@string/use_keywords_for_notifications"
+            android:key="@string/pref_general_search_notifications" />
     </PreferenceCategory>
 
 </PreferenceScreen>