more collection features

app/src/main/java/awais/instagrabber/adapters/SavedCollectionsAdapter.java

@@ -22,10 +22,13 @@ public class SavedCollectionsAdapter extends ListAdapter<SavedCollection, TopicC
 
         @Override
         public boolean areContentsTheSame(@NonNull final SavedCollection oldItem, @NonNull final SavedCollection newItem) {
-            if (oldItem.getCoverMedias().size() == newItem.getCoverMedias().size()) {
-                if (oldItem.getCoverMedias().size() == 0) return true;
+            if (oldItem.getCoverMedias() != null && newItem.getCoverMedias() != null
+                && oldItem.getCoverMedias().size() == newItem.getCoverMedias().size()) {
                 return oldItem.getCoverMedias().get(0).getId().equals(newItem.getCoverMedias().get(0).getId());
             }
+            else if (oldItem.getCoverMedia() != null && newItem.getCoverMedia() != null) {
+                return oldItem.getCoverMedia().getId().equals(newItem.getCoverMedia().getId());
+            }
             return false;
         }
     };

app/src/main/java/awais/instagrabber/adapters/viewholder/TopicClusterViewHolder.java

@@ -127,7 +127,7 @@ public class TopicClusterViewHolder extends RecyclerView.ViewHolder {
         // binding.title.setTransitionName("title-" + topicCluster.getId());
         binding.cover.setTransitionName("cover-" + topicCluster.getId());
         final String thumbUrl = ResponseBodyUtils.getThumbUrl(topicCluster.getCoverMedias() == null
-                ? null
+                ? topicCluster.getCoverMedia()
                 : topicCluster.getCoverMedias().get(0));
         if (thumbUrl == null) {
             binding.cover.setImageURI((String) null);

app/src/main/java/awais/instagrabber/asyncs/DiscoverPostFetchService.java

@@ -9,7 +9,7 @@ import awais.instagrabber.customviews.helpers.PostFetcher;
 import awais.instagrabber.interfaces.FetchListener;
 import awais.instagrabber.repositories.responses.Media;
 import awais.instagrabber.repositories.responses.discover.TopicalExploreFeedResponse;
-import awais.instagrabber.repositories.responses.discover.TopicalExploreItem;
+import awais.instagrabber.repositories.responses.WrappedMedia;
 import awais.instagrabber.webservices.DiscoverService;
 import awais.instagrabber.webservices.ServiceCallback;
 
@@ -35,13 +35,13 @@ public class DiscoverPostFetchService implements PostFetcher.PostFetchService {
                 }
                 moreAvailable = result.isMoreAvailable();
                 topicalExploreRequest.setMaxId(result.getNextMaxId());
-                final List<TopicalExploreItem> items = result.getItems();
+                final List<WrappedMedia> items = result.getItems();
                 final List<Media> posts;
                 if (items == null) {
                     posts = Collections.emptyList();
                 } else {
                     posts = items.stream()
-                                 .map(TopicalExploreItem::getMedia)
+                                 .map(WrappedMedia::getMedia)
                                  .filter(Objects::nonNull)
                                  .collect(Collectors.toList());
                 }

app/src/main/java/awais/instagrabber/fragments/CollectionPostsFragment.java

@@ -10,6 +10,7 @@ import android.graphics.drawable.Drawable;
 import android.graphics.drawable.GradientDrawable;
 import android.os.Bundle;
 import android.os.Handler;
+import android.util.Log;
 import android.view.ActionMode;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -17,11 +18,14 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.EditText;
+import android.widget.Toast;
 
 import androidx.activity.OnBackPressedCallback;
 import androidx.activity.OnBackPressedDispatcher;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.appcompat.app.AlertDialog;
 import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.core.content.PermissionChecker;
 import androidx.core.graphics.ColorUtils;
@@ -49,20 +53,23 @@ import awais.instagrabber.asyncs.SavedPostFetchService;
 import awais.instagrabber.customviews.PrimaryActionModeCallback;
 import awais.instagrabber.databinding.FragmentCollectionPostsBinding;
 import awais.instagrabber.dialogs.PostsLayoutPreferencesDialogFragment;
-import awais.instagrabber.fragments.CollectionPostsFragmentDirections;
 import awais.instagrabber.models.PostsLayoutPreferences;
 import awais.instagrabber.models.enums.PostItemType;
 import awais.instagrabber.repositories.responses.Media;
 import awais.instagrabber.repositories.responses.saved.SavedCollection;
 import awais.instagrabber.utils.Constants;
+import awais.instagrabber.utils.CookieUtils;
 import awais.instagrabber.utils.DownloadUtils;
 import awais.instagrabber.utils.ResponseBodyUtils;
 import awais.instagrabber.utils.Utils;
+import awais.instagrabber.webservices.CollectionService;
+import awais.instagrabber.webservices.ServiceCallback;
 
 import static androidx.core.content.PermissionChecker.checkSelfPermission;
 import static awais.instagrabber.utils.DownloadUtils.WRITE_PERMISSION;
 
 public class CollectionPostsFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener {
+    private static final String TAG = "CollectionPostsFragment";
     private static final int STORAGE_PERM_REQUEST_CODE = 8020;
     private static final int STORAGE_PERM_REQUEST_CODE_FOR_SELECTION = 8030;
 
@@ -75,6 +82,7 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
     private Set<Media> selectedFeedModels;
     private Media downloadFeedModel;
     private int downloadChildPosition = -1;
+    private CollectionService collectionService;
     private PostsLayoutPreferences layoutPreferences = Utils.getPostsLayoutPreferences(Constants.PREF_SAVED_POSTS_LAYOUT);
 
     private final OnBackPressedCallback onBackPressedCallback = new OnBackPressedCallback(false) {
@@ -84,7 +92,7 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
         }
     };
     private final PrimaryActionModeCallback multiSelectAction = new PrimaryActionModeCallback(
-            R.menu.multi_select_download_menu, new PrimaryActionModeCallback.CallbacksHelper() {
+            R.menu.saved_collection_select_menu, new PrimaryActionModeCallback.CallbacksHelper() {
         @Override
         public void onDestroy(final ActionMode mode) {
             binding.posts.endSelection();
@@ -241,6 +249,11 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
         setSharedElementEnterTransition(transitionSet);
         postponeEnterTransition();
         setHasOptionsMenu(true);
+        final String cookie = Utils.settingsHelper.getString(Constants.COOKIE);
+        final long userId = CookieUtils.getUserIdFromCookie(cookie);
+        final String deviceUuid = Utils.settingsHelper.getString(Constants.DEVICE_UUID);
+        final String csrfToken = CookieUtils.getCsrfTokenFromCookie(cookie);
+        collectionService = CollectionService.getInstance(deviceUuid, csrfToken, userId);
     }
 
     @Nullable
@@ -267,7 +280,7 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
 
     @Override
     public void onCreateOptionsMenu(@NonNull final Menu menu, @NonNull final MenuInflater inflater) {
-        inflater.inflate(R.menu.topic_posts_menu, menu);
+        inflater.inflate(R.menu.collection_posts_menu, menu);
     }
 
     @Override
@@ -276,6 +289,58 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
             showPostsLayoutPreferences();
             return true;
         }
+        else if (item.getItemId() == R.id.delete) {
+            final Context context = getContext();
+            new AlertDialog.Builder(context)
+                    .setTitle(R.string.edit_collection)
+                    .setMessage(R.string.delete_collection_note)
+                    .setPositiveButton(R.string.confirm, (d, w) -> {
+                        collectionService.deleteCollection(
+                                savedCollection.getId(),
+                                new ServiceCallback<String>() {
+                                    @Override
+                                    public void onSuccess(final String result) {
+                                        SavedCollectionsFragment.pleaseRefresh = true;
+                                        NavHostFragment.findNavController(CollectionPostsFragment.this).navigateUp();
+                                    }
+
+                                    @Override
+                                    public void onFailure(final Throwable t) {
+                                        Log.e(TAG, "Error deleting collection", t);
+                                        Toast.makeText(context, t.getMessage(), Toast.LENGTH_SHORT).show();
+                                    }
+                                });
+                    })
+                    .setNegativeButton(R.string.cancel, null)
+                    .show();
+        }
+        else if (item.getItemId() == R.id.edit) {
+            final Context context = getContext();
+            final EditText input = new EditText(context);
+            new AlertDialog.Builder(context)
+                    .setTitle(R.string.edit_collection)
+                    .setView(input)
+                    .setPositiveButton(R.string.confirm, (d, w) -> {
+                        collectionService.editCollectionName(
+                                savedCollection.getId(),
+                                input.getText().toString(),
+                                new ServiceCallback<String>() {
+                                    @Override
+                                    public void onSuccess(final String result) {
+                                        binding.collapsingToolbarLayout.setTitle(input.getText().toString());
+                                        SavedCollectionsFragment.pleaseRefresh = true;
+                                    }
+
+                                    @Override
+                                    public void onFailure(final Throwable t) {
+                                        Log.e(TAG, "Error editing collection", t);
+                                        Toast.makeText(context, t.getMessage(), Toast.LENGTH_SHORT).show();
+                                    }
+                                });
+                    })
+                    .setNegativeButton(R.string.cancel, null)
+                    .show();
+        }
         return super.onOptionsItemSelected(item);
     }
 
@@ -372,7 +437,7 @@ public class CollectionPostsFragment extends Fragment implements SwipeRefreshLay
 
     private void setupCover() {
         final String coverUrl = ResponseBodyUtils.getImageUrl(savedCollection.getCoverMedias() == null
-                ? null
+                ? savedCollection.getCoverMedia()
                 : savedCollection.getCoverMedias().get(0));
         final DraweeController controller = Fresco
                 .newDraweeControllerBuilder()

app/src/main/java/awais/instagrabber/fragments/PostViewV2Fragment.java

@@ -49,7 +49,10 @@ import androidx.core.view.ViewCompat;
 import androidx.core.widget.NestedScrollView;
 import androidx.fragment.app.DialogFragment;
 import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.NavBackStackEntry;
 import androidx.navigation.NavController;
 import androidx.navigation.fragment.NavHostFragment;
 import androidx.recyclerview.widget.RecyclerView;
@@ -130,6 +133,17 @@ public class PostViewV2Fragment extends SharedElementTransitionDialogFragment im
     private PopupMenu optionsPopup;
     private EditTextDialogFragment editTextDialogFragment;
 
+    private MutableLiveData<Object> backStackSavedStateResultLiveData;
+    private final Observer<Object> backStackSavedStateObserver = result -> {
+        if (result == null) return;
+        if (result instanceof String) {
+            final String collection = (String) result;
+            handleSaveUnsaveResourceLiveData(viewModel.toggleSave(collection, viewModel.getMedia().hasViewerSaved()));
+        }
+        // clear result
+        backStackSavedStateResultLiveData.postValue(null);
+    };
+
     // private final VerticalDragHelper.OnVerticalDragListener onVerticalDragListener = new VerticalDragHelper.OnVerticalDragListener() {
     //
     //     @Override
@@ -305,6 +319,17 @@ public class PostViewV2Fragment extends SharedElementTransitionDialogFragment im
         }
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        final NavController navController = NavHostFragment.findNavController(this);
+        final NavBackStackEntry backStackEntry = navController.getCurrentBackStackEntry();
+        if (backStackEntry != null) {
+            backStackSavedStateResultLiveData = backStackEntry.getSavedStateHandle().getLiveData("collection");
+            backStackSavedStateResultLiveData.observe(getViewLifecycleOwner(), backStackSavedStateObserver);
+        }
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();
@@ -666,7 +691,10 @@ public class PostViewV2Fragment extends SharedElementTransitionDialogFragment im
             handleSaveUnsaveResourceLiveData(viewModel.toggleSave());
         });
         binding.save.setOnLongClickListener(v -> {
-            Utils.displayToastAboveView(context, v, getString(R.string.save));
+            final NavController navController = NavHostFragment.findNavController(this);
+            final Bundle bundle = new Bundle();
+            bundle.putBoolean("isSaving", true);
+            navController.navigate(R.id.action_global_savedCollectionsFragment, bundle);
             return true;
         });
     }

app/src/main/java/awais/instagrabber/fragments/SavedCollectionsFragment.java

@@ -17,7 +17,10 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.fragment.app.Fragment;
+import androidx.lifecycle.SavedStateHandle;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.NavBackStackEntry;
+import androidx.navigation.NavController;
 import androidx.navigation.fragment.FragmentNavigator;
 import androidx.navigation.fragment.NavHostFragment;
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
@@ -27,7 +30,6 @@ import awais.instagrabber.activities.MainActivity;
 import awais.instagrabber.adapters.SavedCollectionsAdapter;
 import awais.instagrabber.customviews.helpers.GridSpacingItemDecoration;
 import awais.instagrabber.databinding.FragmentSavedCollectionsBinding;
-import awais.instagrabber.repositories.responses.StoryStickerResponse;
 import awais.instagrabber.repositories.responses.saved.CollectionsListResponse;
 import awais.instagrabber.utils.Constants;
 import awais.instagrabber.utils.CookieUtils;
@@ -40,12 +42,14 @@ import static awais.instagrabber.utils.Utils.settingsHelper;
 
 public class SavedCollectionsFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener {
     private static final String TAG = "SavedCollectionsFragment";
+    public static boolean pleaseRefresh = false;
 
     private MainActivity fragmentActivity;
     private CoordinatorLayout root;
     private FragmentSavedCollectionsBinding binding;
     private SavedCollectionsViewModel savedCollectionsViewModel;
     private boolean shouldRefresh = true;
+    private boolean isSaving;
     private ProfileService profileService;
 
     @Override
@@ -82,6 +86,12 @@ public class SavedCollectionsFragment extends Fragment implements SwipeRefreshLa
         inflater.inflate(R.menu.saved_collection_menu, menu);
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        if (pleaseRefresh) onRefresh();
+    }
+
     @Override
     public boolean onOptionsItemSelected(@NonNull final MenuItem item) {
         if (item.getItemId() == R.id.add) {
@@ -120,6 +130,8 @@ public class SavedCollectionsFragment extends Fragment implements SwipeRefreshLa
     private void init() {
         setupTopics();
         fetchTopics(null);
+        final SavedCollectionsFragmentArgs fragmentArgs = SavedCollectionsFragmentArgs.fromBundle(getArguments());
+        isSaving = fragmentArgs.getIsSaving();
     }
 
     @Override
@@ -131,11 +143,18 @@ public class SavedCollectionsFragment extends Fragment implements SwipeRefreshLa
         savedCollectionsViewModel = new ViewModelProvider(fragmentActivity).get(SavedCollectionsViewModel.class);
         binding.topicsRecyclerView.addItemDecoration(new GridSpacingItemDecoration(Utils.convertDpToPx(2)));
         final SavedCollectionsAdapter adapter = new SavedCollectionsAdapter((topicCluster, root, cover, title, titleColor, backgroundColor) -> {
-            final FragmentNavigator.Extras.Builder builder = new FragmentNavigator.Extras.Builder()
-                    .addSharedElement(cover, "collection-" + topicCluster.getId());
-            final SavedCollectionsFragmentDirections.ActionSavedCollectionsFragmentToCollectionPostsFragment action = SavedCollectionsFragmentDirections
-                    .actionSavedCollectionsFragmentToCollectionPostsFragment(topicCluster, titleColor, backgroundColor);
-            NavHostFragment.findNavController(this).navigate(action, builder.build());
+            final NavController navController = NavHostFragment.findNavController(this);
+            if (isSaving) {
+                setNavControllerResult(navController, topicCluster.getId());
+                navController.navigateUp();
+            }
+            else {
+                final FragmentNavigator.Extras.Builder builder = new FragmentNavigator.Extras.Builder()
+                        .addSharedElement(cover, "collection-" + topicCluster.getId());
+                final SavedCollectionsFragmentDirections.ActionSavedCollectionsFragmentToCollectionPostsFragment action = SavedCollectionsFragmentDirections
+                        .actionSavedCollectionsFragmentToCollectionPostsFragment(topicCluster, titleColor, backgroundColor);
+                navController.navigate(action, builder.build());
+            }
         });
         binding.topicsRecyclerView.setAdapter(adapter);
         savedCollectionsViewModel.getList().observe(getViewLifecycleOwner(), adapter::submitList);
@@ -158,4 +177,11 @@ public class SavedCollectionsFragment extends Fragment implements SwipeRefreshLa
             }
         });
     }
+
+    private void setNavControllerResult(@NonNull final NavController navController, final String result) {
+        final NavBackStackEntry navBackStackEntry = navController.getPreviousBackStackEntry();
+        if (navBackStackEntry == null) return;
+        final SavedStateHandle savedStateHandle = navBackStackEntry.getSavedStateHandle();
+        savedStateHandle.set("collection", result);
+    }
 }

app/src/main/java/awais/instagrabber/fragments/main/ProfileFragment.java

@@ -946,7 +946,7 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
             }
         });
         profileDetailsBinding.btnSaved.setOnClickListener(v -> {
-            final NavDirections action = ProfileFragmentDirections.actionGlobalSavedCollectionsFragment();
+            final NavDirections action = ProfileFragmentDirections.actionGlobalSavedCollectionsFragment(false);
             NavHostFragment.findNavController(this).navigate(action);
         });
         profileDetailsBinding.btnLiked.setOnClickListener(v -> {

app/src/main/java/awais/instagrabber/repositories/CollectionRepository.java

@@ -0,0 +1,23 @@
+package awais.instagrabber.repositories;
+
+import java.util.Map;
+
+import awais.instagrabber.repositories.responses.UserFeedResponse;
+import awais.instagrabber.repositories.responses.WrappedFeedResponse;
+import awais.instagrabber.repositories.responses.saved.CollectionsListResponse;
+import retrofit2.Call;
+import retrofit2.http.FieldMap;
+import retrofit2.http.FormUrlEncoded;
+import retrofit2.http.GET;
+import retrofit2.http.POST;
+import retrofit2.http.Path;
+import retrofit2.http.QueryMap;
+
+public interface CollectionRepository {
+
+    @FormUrlEncoded
+    @POST("/api/v1/collections/{id}/{action}/")
+    Call<String> changeCollection(@Path("id") String id,
+                                  @Path("action") String action,
+                                  @FieldMap Map<String, String> signedForm);
+}

app/src/main/java/awais/instagrabber/repositories/ProfileRepository.java

@@ -2,6 +2,7 @@ package awais.instagrabber.repositories;
 
 import java.util.Map;
 
+import awais.instagrabber.repositories.responses.WrappedFeedResponse;
 import awais.instagrabber.repositories.responses.saved.CollectionsListResponse;
 import awais.instagrabber.repositories.responses.UserFeedResponse;
 import retrofit2.Call;
@@ -18,11 +19,11 @@ public interface ProfileRepository {
     Call<UserFeedResponse> fetch(@Path("uid") final long uid, @QueryMap Map<String, String> queryParams);
 
     @GET("/api/v1/feed/saved/")
-    Call<UserFeedResponse> fetchSaved(@QueryMap Map<String, String> queryParams);
+    Call<WrappedFeedResponse> fetchSaved(@QueryMap Map<String, String> queryParams);
 
     @GET("/api/v1/feed/collection/{collectionId}/")
-    Call<UserFeedResponse> fetchSavedCollection(@Path("collectionId") final String collectionId,
-                                                @QueryMap Map<String, String> queryParams);
+    Call<WrappedFeedResponse> fetchSavedCollection(@Path("collectionId") final String collectionId,
+                                                   @QueryMap Map<String, String> queryParams);
 
     @GET("/api/v1/feed/liked/")
     Call<UserFeedResponse> fetchLiked(@QueryMap Map<String, String> queryParams);

app/src/main/java/awais/instagrabber/repositories/responses/WrappedFeedResponse.java

@@ -0,0 +1,43 @@
+package awais.instagrabber.repositories.responses;
+
+import java.util.List;
+
+public class WrappedFeedResponse {
+    private final int numResults;
+    private final String nextMaxId;
+    private final boolean moreAvailable;
+    private final String status;
+    private final List<WrappedMedia> items;
+
+    public WrappedFeedResponse(final int numResults,
+                               final String nextMaxId,
+                               final boolean moreAvailable,
+                               final String status,
+                               final List<WrappedMedia> items) {
+        this.numResults = numResults;
+        this.nextMaxId = nextMaxId;
+        this.moreAvailable = moreAvailable;
+        this.status = status;
+        this.items = items;
+    }
+
+    public int getNumResults() {
+        return numResults;
+    }
+
+    public String getNextMaxId() {
+        return nextMaxId;
+    }
+
+    public boolean isMoreAvailable() {
+        return moreAvailable;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public List<WrappedMedia> getItems() {
+        return items;
+    }
+}

app/src/main/java/awais/instagrabber/repositories/responses/WrappedMedia.java

@@ -0,0 +1,13 @@
+package awais.instagrabber.repositories.responses;
+
+public class WrappedMedia {
+    private final Media media;
+
+    public WrappedMedia(final Media media) {
+        this.media = media;
+    }
+
+    public Media getMedia() {
+        return media;
+    }
+}

app/src/main/java/awais/instagrabber/repositories/responses/discover/TopicalExploreFeedResponse.java

@@ -1,6 +1,7 @@
 package awais.instagrabber.repositories.responses.discover;
 
 import java.util.List;
+import awais.instagrabber.repositories.responses.WrappedMedia;
 
 public class TopicalExploreFeedResponse {
     private final boolean moreAvailable;
@@ -9,7 +10,7 @@ public class TopicalExploreFeedResponse {
     private final String status;
     private final int numResults;
     private final List<TopicCluster> clusters;
-    private final List<TopicalExploreItem> items;
+    private final List<WrappedMedia> items;
 
     public TopicalExploreFeedResponse(final boolean moreAvailable,
                                       final String nextMaxId,
@@ -17,7 +18,7 @@ public class TopicalExploreFeedResponse {
                                       final String status,
                                       final int numResults,
                                       final List<TopicCluster> clusters,
-                                      final List<TopicalExploreItem> items) {
+                                      final List<WrappedMedia> items) {
         this.moreAvailable = moreAvailable;
         this.nextMaxId = nextMaxId;
         this.maxId = maxId;
@@ -51,7 +52,7 @@ public class TopicalExploreFeedResponse {
         return clusters;
     }
 
-    public List<TopicalExploreItem> getItems() {
+    public List<WrappedMedia> getItems() {
         return items;
     }
 }

app/src/main/java/awais/instagrabber/repositories/responses/discover/TopicalExploreItem.java

@@ -1,15 +0,0 @@
-package awais.instagrabber.repositories.responses.discover;
-
-import awais.instagrabber.repositories.responses.Media;
-
-public class TopicalExploreItem {
-    private final Media media;
-
-    public TopicalExploreItem(final Media media) {
-        this.media = media;
-    }
-
-    public Media getMedia() {
-        return media;
-    }
-}

app/src/main/java/awais/instagrabber/repositories/responses/saved/SavedCollection.java

@@ -10,17 +10,20 @@ public class SavedCollection implements Serializable {
     private final String collectionName;
     private final String collectionType;
     private final int collectionMediacount;
+    private final Media coverMedia;
     private final List<Media> coverMediaList;
 
     public SavedCollection(final String collectionId,
                            final String collectionName,
                            final String collectionType,
                            final int collectionMediacount,
+                           final Media coverMedia,
                            final List<Media> coverMediaList) {
         this.collectionId = collectionId;
         this.collectionName = collectionName;
         this.collectionType = collectionType;
         this.collectionMediacount = collectionMediacount;
+        this.coverMedia = coverMedia;
         this.coverMediaList = coverMediaList;
     }
 
@@ -40,6 +43,11 @@ public class SavedCollection implements Serializable {
         return collectionMediacount;
     }
 
+    // check the list first, then the single
+    // i have no idea what condition is required
+
+    public Media getCoverMedia() { return coverMedia; }
+
     public List<Media> getCoverMedias() {
         return coverMediaList;
     }

app/src/main/java/awais/instagrabber/viewmodels/PostViewV2ViewModel.java

@@ -188,27 +188,33 @@ public class PostViewV2ViewModel extends ViewModel {
     @NonNull
     public LiveData<Resource<Object>> toggleSave() {
         if (!media.hasViewerSaved()) {
-            return save();
+            return save(null, false);
         }
         return unsave();
     }
 
-    public LiveData<Resource<Object>> save() {
+    @NonNull
+    public LiveData<Resource<Object>> toggleSave(final String collection, final boolean ignoreSaveState) {
+        return save(collection, ignoreSaveState);
+    }
+
+    public LiveData<Resource<Object>> save(final String collection, final boolean ignoreSaveState) {
         final MutableLiveData<Resource<Object>> data = new MutableLiveData<>();
         data.postValue(Resource.loading(null));
-        mediaService.save(media.getPk(), getSaveUnsaveCallback(data));
+        mediaService.save(media.getPk(), collection, getSaveUnsaveCallback(data, ignoreSaveState));
         return data;
     }
 
     public LiveData<Resource<Object>> unsave() {
         final MutableLiveData<Resource<Object>> data = new MutableLiveData<>();
         data.postValue(Resource.loading(null));
-        mediaService.unsave(media.getPk(), getSaveUnsaveCallback(data));
+        mediaService.unsave(media.getPk(), getSaveUnsaveCallback(data, false));
         return data;
     }
 
     @NonNull
-    private ServiceCallback<Boolean> getSaveUnsaveCallback(final MutableLiveData<Resource<Object>> data) {
+    private ServiceCallback<Boolean> getSaveUnsaveCallback(final MutableLiveData<Resource<Object>> data,
+                                                           final boolean ignoreSaveState) {
         return new ServiceCallback<Boolean>() {
             @Override
             public void onSuccess(final Boolean result) {
@@ -217,7 +223,7 @@ public class PostViewV2ViewModel extends ViewModel {
                     return;
                 }
                 data.postValue(Resource.success(true));
-                media.setHasViewerSaved(!media.hasViewerSaved());
+                if (!ignoreSaveState) media.setHasViewerSaved(!media.hasViewerSaved());
                 saved.postValue(media.hasViewerSaved());
             }
 

app/src/main/java/awais/instagrabber/webservices/CollectionService.java

@@ -0,0 +1,120 @@
+package awais.instagrabber.webservices;
+
+import androidx.annotation.NonNull;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import awais.instagrabber.repositories.CollectionRepository;
+import awais.instagrabber.repositories.responses.Media;
+import awais.instagrabber.utils.Utils;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+
+public class CollectionService extends BaseService {
+    private static final String TAG = "ProfileService";
+
+    private final CollectionRepository repository;
+    private final String deviceUuid, csrfToken;
+    private final long userId;
+
+    private static CollectionService instance;
+
+    private CollectionService(final String deviceUuid,
+                              final String csrfToken,
+                              final long userId) {
+        this.deviceUuid = deviceUuid;
+        this.csrfToken = csrfToken;
+        this.userId = userId;
+        final Retrofit retrofit = getRetrofitBuilder()
+                .baseUrl("https://i.instagram.com")
+                .build();
+        repository = retrofit.create(CollectionRepository.class);
+    }
+
+    public String getCsrfToken() {
+        return csrfToken;
+    }
+
+    public String getDeviceUuid() {
+        return deviceUuid;
+    }
+
+    public long getUserId() {
+        return userId;
+    }
+
+    public static CollectionService getInstance(final String deviceUuid, final String csrfToken, final long userId) {
+        if (instance == null
+                || !Objects.equals(instance.getCsrfToken(), csrfToken)
+                || !Objects.equals(instance.getDeviceUuid(), deviceUuid)
+                || !Objects.equals(instance.getUserId(), userId)) {
+            instance = new CollectionService(deviceUuid, csrfToken, userId);
+        }
+        return instance;
+    }
+
+    public void addPostsToCollection(final String collectionId,
+                                     final List<Media> posts,
+                                     final ServiceCallback<String> callback) {
+        final Map<String, Object> form = new HashMap<>(2);
+        form.put("module_name", "feed_saved_add_to_collection");
+        final List<String> ids;
+        ids = posts.stream()
+                .map(Media::getPk)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toList());
+        form.put("added_media_ids", "[" + String.join(",", ids) + "]");
+        changeCollection(collectionId, "edit", form, callback);
+    }
+
+    public void editCollectionName(final String collectionId,
+                                   final String name,
+                                   final ServiceCallback<String> callback) {
+        final Map<String, Object> form = new HashMap<>(1);
+        form.put("name", name);
+        changeCollection(collectionId, "edit", form, callback);
+    }
+
+    public void deleteCollection(final String collectionId,
+                                 final ServiceCallback<String> callback) {
+        changeCollection(collectionId, "delete", null, callback);
+    }
+
+    public void changeCollection(final String collectionId,
+                                 final String action,
+                                 final Map<String, Object> options,
+                                 final ServiceCallback<String> callback) {
+        final Map<String, Object> form = new HashMap<>();
+        form.put("_csrftoken", csrfToken);
+        form.put("_uuid", deviceUuid);
+        form.put("_uid", userId);
+        if (options != null) form.putAll(options);
+        final Map<String, String> signedForm = Utils.sign(form);
+        final Call<String> request = repository.changeCollection(collectionId, action, signedForm);
+        request.enqueue(new Callback<String>() {
+            @Override
+            public void onResponse(@NonNull final Call<String> call, @NonNull final Response<String> response) {
+                if (callback == null) return;
+                final String collectionsListResponse = response.body();
+                if (collectionsListResponse == null) {
+                    callback.onSuccess(null);
+                    return;
+                }
+                callback.onSuccess(collectionsListResponse);
+            }
+
+            @Override
+            public void onFailure(@NonNull final Call<String> call, @NonNull final Throwable t) {
+                if (callback != null) {
+                    callback.onFailure(t);
+                }
+            }
+        });
+    }
+}

app/src/main/java/awais/instagrabber/webservices/MediaService.java

@@ -102,33 +102,37 @@ public class MediaService extends BaseService {
 
     public void like(final String mediaId,
                      final ServiceCallback<Boolean> callback) {
-        action(mediaId, "like", callback);
+        action(mediaId, "like", null, callback);
     }
 
     public void unlike(final String mediaId,
                        final ServiceCallback<Boolean> callback) {
-        action(mediaId, "unlike", callback);
+        action(mediaId, "unlike", null, callback);
     }
 
     public void save(final String mediaId,
+                     final String collection,
                      final ServiceCallback<Boolean> callback) {
-        action(mediaId, "save", callback);
+        action(mediaId, "save", collection, callback);
     }
 
     public void unsave(final String mediaId,
                        final ServiceCallback<Boolean> callback) {
-        action(mediaId, "unsave", callback);
+        action(mediaId, "unsave", null, callback);
     }
 
     private void action(final String mediaId,
                         final String action,
+                        final String collection,
                         final ServiceCallback<Boolean> callback) {
-        final Map<String, Object> form = new HashMap<>(4);
+        final Map<String, Object> form = new HashMap<>();
         form.put("media_id", mediaId);
         form.put("_csrftoken", csrfToken);
         form.put("_uid", userId);
         form.put("_uuid", deviceUuid);
         // form.put("radio_type", "wifi-none");
+        if (action.equals("save") && !TextUtils.isEmpty(collection)) form.put("added_collection_ids", "[" + collection + "]");
+        // there also exists "removed_collection_ids" which can be used with "save" and "unsave"
         final Map<String, String> signedForm = Utils.sign(form);
         final Call<String> request = repository.action(action, mediaId, signedForm);
         request.enqueue(new Callback<String>() {

app/src/main/java/awais/instagrabber/webservices/ProfileService.java

@@ -4,12 +4,19 @@ import androidx.annotation.NonNull;
 
 import com.google.common.collect.ImmutableMap;
 
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Collectors;
 
 import awais.instagrabber.repositories.ProfileRepository;
+import awais.instagrabber.repositories.responses.Media;
 import awais.instagrabber.repositories.responses.PostsFetchResponse;
 import awais.instagrabber.repositories.responses.UserFeedResponse;
+import awais.instagrabber.repositories.responses.WrappedFeedResponse;
+import awais.instagrabber.repositories.responses.WrappedMedia;
 import awais.instagrabber.repositories.responses.saved.CollectionsListResponse;
 import awais.instagrabber.utils.TextUtils;
 import awais.instagrabber.utils.Utils;
@@ -76,30 +83,40 @@ public class ProfileService extends BaseService {
                            final String collectionId,
                            final ServiceCallback<PostsFetchResponse> callback) {
         final ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
-        Call<UserFeedResponse> request = null;
+        Call<WrappedFeedResponse> request = null;
         if (!TextUtils.isEmpty(maxId)) {
             builder.put("max_id", maxId);
         }
         if (TextUtils.isEmpty(collectionId) || collectionId.equals("ALL_MEDIA_AUTO_COLLECTION")) request = repository.fetchSaved(builder.build());
         else request = repository.fetchSavedCollection(collectionId, builder.build());
-        request.enqueue(new Callback<UserFeedResponse>() {
+        request.enqueue(new Callback<WrappedFeedResponse>() {
             @Override
-            public void onResponse(@NonNull final Call<UserFeedResponse> call, @NonNull final Response<UserFeedResponse> response) {
+            public void onResponse(@NonNull final Call<WrappedFeedResponse> call, @NonNull final Response<WrappedFeedResponse> response) {
                 if (callback == null) return;
-                final UserFeedResponse userFeedResponse = response.body();
+                final WrappedFeedResponse userFeedResponse = response.body();
                 if (userFeedResponse == null) {
                     callback.onSuccess(null);
                     return;
                 }
+                final List<WrappedMedia> items = userFeedResponse.getItems();
+                final List<Media> posts;
+                if (items == null) {
+                    posts = Collections.emptyList();
+                } else {
+                    posts = items.stream()
+                            .map(WrappedMedia::getMedia)
+                            .filter(Objects::nonNull)
+                            .collect(Collectors.toList());
+                }
                 callback.onSuccess(new PostsFetchResponse(
-                        userFeedResponse.getItems(),
+                        posts,
                         userFeedResponse.isMoreAvailable(),
                         userFeedResponse.getNextMaxId()
                 ));
             }
 
             @Override
-            public void onFailure(@NonNull final Call<UserFeedResponse> call, @NonNull final Throwable t) {
+            public void onFailure(@NonNull final Call<WrappedFeedResponse> call, @NonNull final Throwable t) {
                 if (callback != null) {
                     callback.onFailure(t);
                 }
@@ -171,7 +188,6 @@ public class ProfileService extends BaseService {
         });
     }
 
-
     public void fetchLiked(final String maxId,
                            final ServiceCallback<PostsFetchResponse> callback) {
         final ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();

app/src/main/res/menu/collection_posts_menu.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/edit"
+        android:icon="@android:drawable/ic_menu_edit"
+        android:title="@string/edit_collection"
+        app:showAsAction="always" />
+
+    <item
+        android:id="@+id/delete"
+        android:icon="@android:drawable/ic_menu_delete"
+        android:title="@string/delete_collection"
+        app:showAsAction="always" />
+
+    <item
+        android:id="@+id/layout"
+        android:title="@string/layout"
+        app:showAsAction="never" />
+</menu>

app/src/main/res/menu/saved_collection_select_menu.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_add"
+        android:icon="@drawable/ic_add"
+        android:title="@string/add_to_collection"
+        android:titleCondensed="@string/action_download"
+        app:showAsAction="always" />
+    <item
+        android:id="@+id/action_delete"
+        android:icon="@drawable/ic_cancel"
+        android:title="@string/remove_from_collection"
+        android:titleCondensed="@string/action_download"
+        app:showAsAction="always" />
+    <item
+        android:id="@+id/action_download"
+        android:icon="@drawable/ic_download"
+        android:title="@string/action_download"
+        android:titleCondensed="@string/action_download"
+        app:showAsAction="always" />
+</menu>

app/src/main/res/navigation/direct_messages_nav_graph.xml

@@ -76,6 +76,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <include app:graph="@navigation/user_search_nav_graph" />
 
     <action

app/src/main/res/navigation/discover_nav_graph.xml

@@ -70,6 +70,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <include app:graph="@navigation/notification_viewer_nav_graph" />
 
     <action

app/src/main/res/navigation/feed_nav_graph.xml

@@ -70,6 +70,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <include app:graph="@navigation/notification_viewer_nav_graph" />
 
     <action

app/src/main/res/navigation/hashtag_nav_graph.xml

@@ -38,6 +38,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <action
         android:id="@+id/action_global_profileFragment"
         app:destination="@id/profile_nav_graph">

app/src/main/res/navigation/location_nav_graph.xml

@@ -38,6 +38,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <action
         android:id="@+id/action_global_profileFragment"
         app:destination="@id/profile_nav_graph">

app/src/main/res/navigation/notification_viewer_nav_graph.xml

@@ -61,6 +61,16 @@
             app:nullable="false" />
     </action>
 
+    <include app:graph="@navigation/saved_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_savedCollectionsFragment"
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
+
     <fragment
         android:id="@+id/storyViewerFragment"
         android:name="awais.instagrabber.fragments.StoryViewerFragment"

app/src/main/res/navigation/profile_nav_graph.xml

@@ -86,7 +86,11 @@
 
     <action
         android:id="@+id/action_global_savedCollectionsFragment"
-        app:destination="@id/saved_nav_graph" />
+        app:destination="@id/saved_nav_graph">
+        <argument
+            android:name="isSaving"
+            app:argType="boolean" />
+    </action>
 
     <fragment
         android:id="@+id/profileFragment"

app/src/main/res/navigation/saved_nav_graph.xml

@@ -78,6 +78,10 @@
         android:name="awais.instagrabber.fragments.SavedCollectionsFragment"
         android:label="@string/saved"
         tools:layout="@layout/fragment_saved_collections" >
+        <argument
+            android:name="isSaving"
+            app:argType="boolean"
+            android:defaultValue="false" />
         <action
             android:id="@+id/action_savedCollectionsFragment_to_collectionPostsFragment"
             app:destination="@id/collectionPostsFragment" />

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

@@ -99,6 +99,12 @@
     <string name="remove_all_acc_warning">This will remove all added accounts from the app!\nTo remove just one account, long tap the account from the account switcher dialog.\nDo you want to continue?</string>
     <string name="time_settings">Date format</string>
     <string name="saved_create_collection">Create new collection</string>
+    <string name="edit_collection">Edit collection name</string>
+    <string name="delete_collection">Delete collection</string>
+    <string name="delete_collection_confirm">Are you sure you want to delete this collection?</string>
+    <string name="delete_collection_note">All contained media will remain in other collections.</string>
+    <string name="add_to_collection">Add to collection...</string>
+    <string name="remove_from_collection">Remove from collection</string>
     <string name="liked">Liked</string>
     <string name="saved">Saved</string>
     <string name="tagged">Tagged</string>