Remove no longer available updates when refreshing the list

src/org/lineageos/updater/UpdatesActivity.java

@@ -161,10 +161,14 @@ public class UpdatesActivity extends AppCompatActivity {
         Log.d(TAG, "Adding remote updates");
         UpdaterControllerInt controller = mUpdaterService.getUpdaterController();
         boolean newUpdates = false;
+        List<String> updatesOnline = new ArrayList<>();
         for (UpdateDownload update : Utils.parseJson(jsonFile, true)) {
             newUpdates |= controller.addUpdate(update);
+            updatesOnline.add(update.getDownloadId());
         }
 
+        controller.setUpdatesAvailableOnline(updatesOnline, true);
+
         if (manualRefresh) {
             showSnackBar(
                     newUpdates ? R.string.snack_updates_found : R.string.snack_no_updates_found,

src/org/lineageos/updater/controller/UpdaterController.java

@@ -291,6 +291,24 @@ public class UpdaterController implements UpdaterControllerInt {
         return true;
     }
 
+    @Override
+    public void setUpdatesAvailableOnline(List<String> downloadIds, boolean purgeList) {
+        List<String> toRemove = new ArrayList<>();
+        for (DownloadEntry entry : mDownloads.values()) {
+            boolean online = downloadIds.contains(entry.mUpdate.getDownloadId());
+            entry.mUpdate.setAvailableOnline(online);
+            if (!online && purgeList &&
+                    entry.mUpdate.getPersistentStatus() == UpdateStatus.Persistent.UNKNOWN) {
+                toRemove.add(entry.mUpdate.getDownloadId());
+            }
+        }
+        for (String downloadId : toRemove) {
+            Log.d(TAG, downloadId + " no longer available online, removing");
+            mDownloads.remove(downloadId);
+            notifyUpdateDelete(downloadId);
+        }
+    }
+
     @Override
     public boolean addUpdate(UpdateDownload update) {
         return addUpdate(update, true);

src/org/lineageos/updater/controller/UpdaterControllerInt.java

@@ -30,6 +30,8 @@ public interface UpdaterControllerInt {
 
     UpdateDownload getUpdate(String downloadId);
 
+    void setUpdatesAvailableOnline(List<String> downloadIds, boolean purgeList);
+
     boolean startDownload(String downloadId);
 
     boolean pauseDownload(String downloadId);