add the notifcation text and settings

app/src/main/java/com/github/libretube/MyApp.kt

@@ -6,16 +6,8 @@ import android.app.NotificationManager
 import android.os.Build
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
-import androidx.work.Constraints
-import androidx.work.ExistingPeriodicWorkPolicy
-import androidx.work.NetworkType
-import androidx.work.PeriodicWorkRequest
-import androidx.work.WorkManager
 import com.github.libretube.preferences.PreferenceHelper
 import com.github.libretube.util.NotificationHelper
-import com.github.libretube.util.NotificationWorker
-import java.util.concurrent.TimeUnit
-
 
 class MyApp : Application() {
     override fun onCreate() {

app/src/main/java/com/github/libretube/preferences/MainSettings.kt

@@ -62,6 +62,13 @@ class MainSettings : PreferenceFragmentCompat() {
             true
         }
 
+        val notifications = findPreference<Preference>("notifications")
+        notifications?.setOnPreferenceClickListener {
+            val newFragment = NotificationSettings()
+            navigateToSettingsFragment(newFragment)
+            true
+        }
+
         val advanced = findPreference<Preference>("advanced")
         advanced?.setOnPreferenceClickListener {
             val newFragment = AdvancedSettings()

app/src/main/java/com/github/libretube/preferences/NotificationSettings.kt

@@ -0,0 +1,32 @@
+package com.github.libretube.preferences
+
+import android.os.Bundle
+import androidx.preference.ListPreference
+import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.SwitchPreferenceCompat
+import com.github.libretube.R
+import com.github.libretube.activities.SettingsActivity
+import com.github.libretube.util.NotificationHelper
+
+class NotificationSettings : PreferenceFragmentCompat() {
+    val TAG = "SettingsFragment"
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.notification_settings, rootKey)
+
+        val settingsActivity = activity as SettingsActivity
+        settingsActivity.changeTopBarText(getString(R.string.notifications))
+
+        val notificationsEnabled = findPreference<SwitchPreferenceCompat>(PreferenceKeys.NOTIFICATION_ENABLED)
+        notificationsEnabled?.setOnPreferenceChangeListener { _, _ ->
+            NotificationHelper.enqueueWork(requireContext())
+            true
+        }
+
+        val checkingFrequency = findPreference<ListPreference>(PreferenceKeys.CHECKING_FREQUENCY)
+        checkingFrequency?.setOnPreferenceChangeListener { _, _ ->
+            NotificationHelper.enqueueWork(requireContext())
+            true
+        }
+    }
+}

app/src/main/java/com/github/libretube/preferences/PreferenceHelper.kt

@@ -246,6 +246,14 @@ object PreferenceHelper {
         }
     }
 
+    fun setLatestVideoId(videoId: String) {
+        setString(PreferenceKeys.LAST_STREAM_VIDEO_ID, videoId)
+    }
+
+    fun getLatestVideoId(): String {
+        return getString(PreferenceKeys.LAST_STREAM_VIDEO_ID, "")
+    }
+
     private fun getDefaultSharedPreferences(context: Context): SharedPreferences {
         return PreferenceManager.getDefaultSharedPreferences(context)
     }

app/src/main/java/com/github/libretube/preferences/PreferenceKeys.kt

@@ -69,7 +69,8 @@ object PreferenceKeys {
      * Notifications
      */
     const val NOTIFICATION_ENABLED = "notification_toggle"
-    const val NOTIFICATION_DELAY = "notifcation_delay"
+    const val CHECKING_FREQUENCY = "checking_frequency"
+    const val LAST_STREAM_VIDEO_ID = "last_stream_video_id"
 
     /**
      * Advanced

app/src/main/java/com/github/libretube/util/NotificationHelper.kt

@@ -6,62 +6,105 @@ import android.content.Intent
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.work.Constraints
-import androidx.work.CoroutineWorker
 import androidx.work.ExistingPeriodicWorkPolicy
 import androidx.work.NetworkType
 import androidx.work.PeriodicWorkRequest
 import androidx.work.WorkManager
 import com.github.libretube.R
 import com.github.libretube.activities.MainActivity
-import com.github.libretube.obj.StreamItem
 import com.github.libretube.preferences.PreferenceHelper
-import kotlinx.coroutines.CoroutineScope
+import com.github.libretube.preferences.PreferenceKeys
-import kotlinx.coroutines.Deferred
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
-import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import java.util.concurrent.TimeUnit
-import java.util.stream.Stream
 
 object NotificationHelper {
     fun enqueueWork(
         context: Context
     ) {
+        PreferenceHelper.setContext(context)
+        val notificationsEnabled = PreferenceHelper.getBoolean(
+            PreferenceKeys.NOTIFICATION_ENABLED,
+            true
+        )
+
+        val checkingFrequency = PreferenceHelper.getString(
+            PreferenceKeys.CHECKING_FREQUENCY,
+            "60"
+        ).toLong()
+
+        val uniqueWorkName = "NotificationService"
+
+        if (notificationsEnabled) {
             val constraints = Constraints.Builder()
                 .setRequiredNetworkType(NetworkType.CONNECTED)
                 .build()
 
             val myWorkBuilder = PeriodicWorkRequest.Builder(
                 NotificationWorker::class.java,
-            1,
+                checkingFrequency,
-            TimeUnit.SECONDS
+                TimeUnit.MINUTES
             )
                 .setConstraints(constraints)
 
             val myWork = myWorkBuilder.build()
             WorkManager.getInstance(context)
                 .enqueueUniquePeriodicWork(
-                "NotificationService",
+                    uniqueWorkName,
                     ExistingPeriodicWorkPolicy.REPLACE,
                     myWork
                 )
+        } else {
+            WorkManager.getInstance(context)
+                .cancelUniqueWork(uniqueWorkName)
+        }
     }
 
+    /**
+     * check whether new streams are available in subscriptions
+     */
     fun checkForNewStreams(context: Context) {
         val token = PreferenceHelper.getToken()
-        var response: List<StreamItem>
         runBlocking {
             val task = async {
                 RetrofitInstance.authApi.getFeed(token)
             }
-            response = task.await()
+            val videoFeed = task.await()
+            val lastSeenStreamId = PreferenceHelper.getLatestVideoId()
+            val latestFeedStreamId = videoFeed[0].url?.replace("/watch?v=", "")
+            // first time notifications enabled
+            if (lastSeenStreamId == "") PreferenceHelper.setLatestVideoId(lastSeenStreamId)
+            else if (lastSeenStreamId != latestFeedStreamId) {
+                // get the index of the last user-seen video
+                var newStreamIndex = -1
+                videoFeed.forEachIndexed { index, stream ->
+                    if (stream.url?.replace("/watch?v=", "") == lastSeenStreamId) {
+                        newStreamIndex = index
                     }
-        createNotification(
+                }
-            context,
+                val (title, description) = when (newStreamIndex) {
-            response[0].title.toString(),
+                    // only one new stream available
-            response[0].uploaderName.toString()
+                    1 -> {
+                        Pair(videoFeed[0].title, videoFeed[0].uploaderName)
+                    }
+                    else -> {
+                        Pair(
+                            // return the amount of new streams as title
+                            context.getString(
+                                R.string.new_streams_count,
+                                newStreamIndex.toString()
+                            ),
+                            // return the first few uploader as description
+                            context.getString(
+                                R.string.new_streams_by,
+                                videoFeed[0].uploaderName + ", " + videoFeed[1].uploaderName + ", " + videoFeed[2].uploaderName
                             )
+                        )
+                    }
+                }
+                createNotification(context, title!!, description!!)
+            }
+        }
     }
 
     fun createNotification(context: Context, title: String, description: String) {
@@ -82,7 +125,5 @@ object NotificationHelper {
             // notificationId is a unique int for each notification that you must define
             notify(2, builder.build())
         }
-
     }
-
 }

app/src/main/res/drawable/ic_notification.xml

@@ -0,0 +1,14 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:width="22dp"
+    android:height="24dp"
+    android:tint="?android:attr/colorControlNormal"
+    android:viewportWidth="18"
+    android:viewportHeight="20"
+    tools:ignore="VectorRaster">
+    <path
+        android:fillColor="#E6E1E5"
+        android:fillType="evenOdd"
+        android:pathData="M8.625,0H9.375C9.5821,0 9.75,0.1679 9.75,0.375C9.75,0.5821 9.9179,0.75 10.125,0.75C10.3321,0.75 10.5,0.9179 10.5,1.125V1.875C10.5,2.4963 11.0088,3.0566 11.5685,3.3265C12.4353,3.7446 13.5132,4.5489 14.0889,5.6503C14.2067,5.8758 14.25,6.1307 14.25,6.3852V12.0512C14.25,12.9156 14.8488,13.6151 15.5614,14.1044C15.8681,14.315 16.102,14.5525 16.3642,14.8462C16.4522,14.9448 16.5,15.0728 16.5,15.2049C16.5,15.506 16.256,15.75 15.955,15.75H2.051C1.7467,15.75 1.5,15.5033 1.5,15.199C1.5,15.0704 1.5445,14.9452 1.6287,14.848C1.8916,14.5448 2.1396,14.3062 2.4619,14.0946C3.1737,13.6273 3.75,12.9293 3.75,12.0778V6.3852C3.75,6.1307 3.7933,5.8758 3.9111,5.6503C4.4868,4.5489 5.5648,3.7446 6.4316,3.3265C6.9912,3.0566 7.5,2.4963 7.5,1.875V1.125C7.5,0.9179 7.6679,0.75 7.875,0.75C8.0821,0.75 8.25,0.5821 8.25,0.375C8.25,0.1679 8.4179,0 8.625,0ZM9,19.4998C7.7574,19.4998 6.7501,18.4925 6.75,17.2499H11.25C11.2499,18.4925 10.2426,19.4998 9,19.4998ZM0.0558,7.5132C-0.1246,6.2857 0.1356,5.034 0.7902,3.9801C1.4447,2.9262 2.4513,2.1382 3.6315,1.7557L3.9552,2.7546C3.0111,3.0605 2.2058,3.691 1.6821,4.5341C1.1585,5.3772 0.9503,6.3786 1.0946,7.3605L0.0558,7.5132ZM17.1808,3.934C16.5153,2.8869 15.5006,2.1094 14.3165,1.7392L14.0032,2.7414C14.9504,3.0375 15.7623,3.6596 16.2946,4.4972C16.827,5.3348 17.0455,6.334 16.9115,7.3174L17.9519,7.4592C18.1194,6.2299 17.8463,4.981 17.1808,3.934Z"
+        tools:ignore="VectorPath" />
+</vector>

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

@@ -760,4 +760,22 @@
         <item>worst</item>
     </string-array>
 
+    <string-array name="checkingFrequency">
+        <item>15 minutes</item>
+        <item>30 minutes</item>
+        <item>60 minutes</item>
+        <item>2 hours</item>
+        <item>6 hours</item>
+        <item>12 hours</item>
+    </string-array>
+
+    <string-array name="checkingFrequencyValues">
+        <item>15</item>
+        <item>30</item>
+        <item>60</item>
+        <item>120</item>
+        <item>360</item>
+        <item>720</item>
+    </string-array>
+
 </resources>

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

@@ -265,4 +265,10 @@
     <string name="best_quality">Best quality</string>
     <string name="worst_quality">Worst quality</string>
     <string name="default_subtitle_language">Default subtitle language</string>
+    <string name="notifications">Notifications</string>
+    <string name="notify_new_streams">New streams notifications</string>
+    <string name="notify_new_streams_summary">Notify when new streams from subscriptions are available</string>
+    <string name="checking_frequency">Checking frequency</string>
+    <string name="new_streams_count">%1$s new streams are available</string>
+    <string name="new_streams_by">New streams by %1$s …</string>
 </resources>

app/src/main/res/xml/notification_settings.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <PreferenceCategory app:title="@string/notifications">
+
+        <SwitchPreferenceCompat
+            android:icon="@drawable/ic_notification"
+            app:defaultValue="true"
+            app:key="notification_toggle"
+            app:title="@string/notify_new_streams"
+            android:summary="@string/notify_new_streams_summary"/>
+
+        <ListPreference
+            android:icon="@drawable/ic_time"
+            app:defaultValue="60"
+            app:entries="@array/checkingFrequency"
+            app:entryValues="@array/checkingFrequencyValues"
+            app:key="checking_frequency"
+            app:title="@string/checking_frequency"
+            app:useSimpleSummaryProvider="true" />
+
+    </PreferenceCategory>
+
+</PreferenceScreen>

app/src/main/res/xml/settings.xml

@@ -40,6 +40,12 @@
             app:key="history"
             app:title="@string/history" />
 
+        <Preference
+            android:icon="@drawable/ic_notification"
+            android:summary="@string/notify_new_streams"
+            app:key="notifications"
+            app:title="@string/notifications" />
+
         <Preference
             android:icon="@drawable/ic_list"
             app:key="advanced"