Random enqueue location (#6403)

app/src/androidTest/java/de/test/antennapod/ui/PreferencesTest.java

@@ -123,6 +123,7 @@ public class PreferencesTest {
         doTestEnqueueLocation(R.string.enqueue_location_after_current, EnqueueLocation.AFTER_CURRENTLY_PLAYING);
         doTestEnqueueLocation(R.string.enqueue_location_front, EnqueueLocation.FRONT);
         doTestEnqueueLocation(R.string.enqueue_location_back, EnqueueLocation.BACK);
+        doTestEnqueueLocation(R.string.enqueue_location_random, EnqueueLocation.RANDOM);
     }
 
     private void doTestEnqueueLocation(@StringRes int optionResId, EnqueueLocation expected) {

core/src/main/java/de/danoeh/antennapod/core/storage/ItemEnqueuePositionCalculator.java

@@ -6,6 +6,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import java.util.List;
+import java.util.Random;
 
 import de.danoeh.antennapod.core.service.download.DownloadService;
 import de.danoeh.antennapod.model.feed.FeedItem;
@@ -46,6 +47,9 @@ class ItemEnqueuePositionCalculator {
                 int currentlyPlayingPosition = getCurrentlyPlayingPosition(curQueue, currentPlaying);
                 return getPositionOfFirstNonDownloadingItem(
                         currentlyPlayingPosition + 1, curQueue);
+            case RANDOM:
+                Random random = new Random();
+                return random.nextInt(curQueue.size() + 1);
             default:
                 throw new AssertionError("calcPosition() : unrecognized enqueueLocation option: " + enqueueLocation);
         }

core/src/main/res/values/arrays.xml

@@ -161,6 +161,7 @@
         <item>@string/enqueue_location_back</item>
         <item>@string/enqueue_location_front</item>
         <item>@string/enqueue_location_after_current</item>
+        <item>@string/enqueue_location_random</item>
     </string-array>
 
     <string-array name="enqueue_location_values">
@@ -168,6 +169,7 @@
         <item>BACK</item>
         <item>FRONT</item>
         <item>AFTER_CURRENTLY_PLAYING</item>
+        <item>RANDOM</item>
     </string-array>
 
     <string-array name="episode_cleanup_values">

storage/preferences/src/main/java/de/danoeh/antennapod/storage/preferences/UserPreferences.java

@@ -345,7 +345,7 @@ public class UserPreferences {
     }
 
     public enum EnqueueLocation {
-        BACK, FRONT, AFTER_CURRENTLY_PLAYING
+        BACK, FRONT, AFTER_CURRENTLY_PLAYING, RANDOM
     }
 
     @NonNull

ui/i18n/src/main/res/values/strings.xml

@@ -492,6 +492,7 @@
     <string name="enqueue_location_back">Back</string>
     <string name="enqueue_location_front">Front</string>
     <string name="enqueue_location_after_current">After current episode</string>
+    <string name="enqueue_location_random">Random</string>
     <string name="pref_smart_mark_as_played_disabled">Disabled</string>
     <string name="documentation_support">Documentation &amp; Support</string>
     <string name="visit_user_forum">User forum</string>