support for viewing comment likes

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

@@ -25,6 +25,7 @@ import androidx.appcompat.widget.LinearLayoutCompat;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.NavController;
 import androidx.navigation.NavDirections;
 import androidx.navigation.fragment.NavHostFragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -288,6 +289,7 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
             commentDialogList = new String[]{
                     resources.getString(R.string.open_profile),
                     resources.getString(R.string.comment_viewer_copy_comment),
+                    resources.getString(R.string.comment_viewer_see_likers),
                     resources.getString(R.string.comment_viewer_reply_comment),
                     commentModel.getLiked() ? resources.getString(R.string.comment_viewer_unlike_comment)
                                             : resources.getString(R.string.comment_viewer_like_comment),
@@ -298,6 +300,7 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
             commentDialogList = new String[]{
                     resources.getString(R.string.open_profile),
                     resources.getString(R.string.comment_viewer_copy_comment),
+                    resources.getString(R.string.comment_viewer_see_likers),
                     resources.getString(R.string.comment_viewer_reply_comment),
                     commentModel.getLiked() ? resources.getString(R.string.comment_viewer_unlike_comment)
                                             : resources.getString(R.string.comment_viewer_like_comment),
@@ -306,7 +309,8 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
         } else {
             commentDialogList = new String[]{
                     resources.getString(R.string.open_profile),
-                    resources.getString(R.string.comment_viewer_copy_comment)
+                    resources.getString(R.string.comment_viewer_copy_comment),
+                    resources.getString(R.string.comment_viewer_see_likers)
             };
         }
         final Context context = getContext();
@@ -321,7 +325,17 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
                 case 1: // copy comment
                     Utils.copyText(context, "@" + profileModel.getUsername() + ": " + commentModel.getText());
                     break;
-                case 2: // reply to comment
+                case 2: // see comment likers, this is surprisingly available to anons
+                    final NavController navController = getNavController();
+                    if (navController != null) {
+                        final Bundle bundle = new Bundle();
+                        bundle.putString("postId", commentModel.getId());
+                        bundle.putBoolean("isComment", true);
+                        navController.navigate(R.id.action_global_likesViewerFragment, bundle);
+                    }
+                    else Toast.makeText(context, R.string.downloader_unknown_error, Toast.LENGTH_SHORT).show();
+                    break;
+                case 3: // reply to comment
                     commentsAdapter.setSelected(commentModel);
                     String mention = "@" + profileModel.getUsername() + " ";
                     binding.commentText.setText(mention);
@@ -333,7 +347,7 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
                         imm.showSoftInput(binding.commentText, 0);
                     }, 200);
                     break;
-                case 3: // like/unlike comment
+                case 4: // like/unlike comment
                     if (csrfToken == null) {
                         return;
                     }
@@ -373,7 +387,7 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
                         }
                     });
                     break;
-                case 4: // translate comment
+                case 5: // translate comment
                     mediaService.translate(commentModel.getId(), "2", new ServiceCallback<String>() {
                         @Override
                         public void onSuccess(final String result) {
@@ -395,7 +409,7 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
                         }
                     });
                     break;
-                case 5: // delete comment
+                case 6: // delete comment
                     final String userId = CookieUtils.getUserIdFromCookie(cookie);
                     if (userId == null) return;
                     mediaService.deleteComment(
@@ -440,4 +454,15 @@ public final class CommentsViewerFragment extends BottomSheetDialogFragment impl
             }
         }
     }
+
+    @Nullable
+    private NavController getNavController() {
+        NavController navController = null;
+        try {
+            navController = NavHostFragment.findNavController(this);
+        } catch (IllegalStateException e) {
+            Log.e(TAG, "navigateToProfile", e);
+        }
+        return navController;
+    }
 }

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

@@ -14,28 +14,30 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.LinearLayoutCompat;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.navigation.NavDirections;
 import androidx.navigation.fragment.NavHostFragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 
 import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
 
-import java.util.Collections;
 import java.util.List;
 
-import awais.instagrabber.BuildConfig;
 import awais.instagrabber.R;
 import awais.instagrabber.adapters.LikesAdapter;
+import awais.instagrabber.customviews.helpers.RecyclerLazyLoader;
 import awais.instagrabber.databinding.FragmentLikesBinding;
 import awais.instagrabber.models.ProfileModel;
+import awais.instagrabber.repositories.responses.GraphQLUserListFetchResponse;
 import awais.instagrabber.utils.Constants;
+import awais.instagrabber.utils.CookieUtils;
 import awais.instagrabber.utils.TextUtils;
 import awais.instagrabber.utils.Utils;
+import awais.instagrabber.webservices.GraphQLService;
 import awais.instagrabber.webservices.MediaService;
 import awais.instagrabber.webservices.ServiceCallback;
 
+import static awais.instagrabber.utils.Utils.settingsHelper;
+
 public final class LikesViewerFragment extends BottomSheetDialogFragment implements SwipeRefreshLayout.OnRefreshListener {
     private static final String TAG = "LikesViewerFragment";
 
@@ -47,8 +49,12 @@ public final class LikesViewerFragment extends BottomSheetDialogFragment impleme
     private Resources resources;
     private AppCompatActivity fragmentActivity;
     private LinearLayoutCompat root;
+    private RecyclerLazyLoader lazyLoader;
     private MediaService mediaService;
-    private String postId;
+    private GraphQLService graphQLService;
+    private boolean isLoggedIn;
+    private String postId, endCursor;
+    private boolean isComment;
 
     private final ServiceCallback<List<ProfileModel>> cb = new ServiceCallback<List<ProfileModel>>() {
         @Override
@@ -78,11 +84,44 @@ public final class LikesViewerFragment extends BottomSheetDialogFragment impleme
         }
     };
 
+    private final ServiceCallback<GraphQLUserListFetchResponse> acb = new ServiceCallback<GraphQLUserListFetchResponse>() {
+        @Override
+        public void onSuccess(final GraphQLUserListFetchResponse result) {
+            endCursor = result.getNextMaxId();
+            final LikesAdapter likesAdapter = new LikesAdapter(result.getItems(), v -> {
+                final Object tag = v.getTag();
+                if (tag instanceof ProfileModel) {
+                    ProfileModel model = (ProfileModel) tag;
+                    final Bundle bundle = new Bundle();
+                    bundle.putString("username", "@" + model.getUsername());
+                    NavHostFragment.findNavController(LikesViewerFragment.this).navigate(R.id.action_global_profileFragment, bundle);
+                }
+            });
+            layoutManager = new LinearLayoutManager(getContext());
+            binding.rvLikes.setAdapter(likesAdapter);
+            binding.rvLikes.setLayoutManager(layoutManager);
+            binding.swipeRefreshLayout.setRefreshing(false);
+        }
+
+        @Override
+        public void onFailure(final Throwable t) {
+            Log.e(TAG, "Error", t);
+            try {
+                final Context context = getContext();
+                Toast.makeText(context, t.getMessage(), Toast.LENGTH_SHORT).show();
+            }
+            catch (Exception e) {}
+        }
+    };
+
     @Override
     public void onCreate(@Nullable final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        final String cookie = settingsHelper.getString(Constants.COOKIE);
+        isLoggedIn = !TextUtils.isEmpty(cookie) && CookieUtils.getUserIdFromCookie(cookie) != null;
         fragmentActivity = (AppCompatActivity) getActivity();
-        mediaService = MediaService.getInstance();
+        mediaService = isLoggedIn ? MediaService.getInstance() : null;
+        graphQLService = isLoggedIn ? null : GraphQLService.getInstance();
         // setHasOptionsMenu(true);
     }
 
@@ -103,16 +142,29 @@ public final class LikesViewerFragment extends BottomSheetDialogFragment impleme
 
     @Override
     public void onRefresh() {
-        mediaService.fetchLikes(postId, cb);
+        if (isComment && !isLoggedIn) {
+            lazyLoader.resetState();
+            graphQLService.fetchCommentLikers(postId, null, acb);
+        }
+        else mediaService.fetchLikes(postId, isComment, cb);
     }
 
     private void init() {
         if (getArguments() == null) return;
         final LikesViewerFragmentArgs fragmentArgs = LikesViewerFragmentArgs.fromBundle(getArguments());
         postId = fragmentArgs.getPostId();
+        isComment = fragmentArgs.getIsComment();
         binding.swipeRefreshLayout.setOnRefreshListener(this);
         binding.swipeRefreshLayout.setRefreshing(true);
         resources = getResources();
+        if (isComment && !isLoggedIn) {
+            lazyLoader = new RecyclerLazyLoader(layoutManager, (page, totalItemsCount) -> {
+                if (!TextUtils.isEmpty(endCursor))
+                    graphQLService.fetchCommentLikers(postId, null, acb);
+                endCursor = null;
+            });
+            binding.rvLikes.addOnScrollListener(lazyLoader);
+        }
         onRefresh();
     }
 }

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

@@ -542,6 +542,7 @@ public class PostViewV2Fragment extends SharedElementTransitionDialogFragment {
             if (navController != null && isLoggedIn) {
                 final Bundle bundle = new Bundle();
                 bundle.putString("postId", feedModel.getPostId());
+                bundle.putBoolean("isComment", false);
                 navController.navigate(R.id.action_global_likesViewerFragment, bundle);
             }
             else {

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

@@ -15,8 +15,9 @@ public interface MediaRepository {
     @GET("/api/v1/media/{mediaId}/info/")
     Call<String> fetch(@Path("mediaId") final String mediaId);
 
-    @GET("/api/v1/media/{mediaId}/likers/")
-    Call<String> fetchLikes(@Path("mediaId") final String mediaId);
+    @GET("/api/v1/media/{mediaId}/{action}/")
+    Call<String> fetchLikes(@Path("mediaId") final String mediaId,
+                            @Path("action") final String action); // one of "likers" or "comment_likers"
 
     @FormUrlEncoded
     @POST("/api/v1/media/{mediaId}/{action}/")

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

@@ -0,0 +1,79 @@
+package awais.instagrabber.repositories.responses;
+
+import androidx.annotation.NonNull;
+
+import java.util.List;
+import java.util.Objects;
+
+import awais.instagrabber.models.ProfileModel;
+import awais.instagrabber.utils.TextUtils;
+
+public class GraphQLUserListFetchResponse {
+    private String nextMaxId;
+    private String status;
+    private List<ProfileModel> items;
+
+    public GraphQLUserListFetchResponse(final String nextMaxId,
+                                        final String status,
+                                        final List<ProfileModel> items) {
+        this.nextMaxId = nextMaxId;
+        this.status = status;
+        this.items = items;
+    }
+
+    public boolean isMoreAvailable() {
+        return !TextUtils.isEmpty(nextMaxId);
+    }
+
+    public String getNextMaxId() {
+        return nextMaxId;
+    }
+
+    public GraphQLUserListFetchResponse setNextMaxId(final String nextMaxId) {
+        this.nextMaxId = nextMaxId;
+        return this;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public GraphQLUserListFetchResponse setStatus(final String status) {
+        this.status = status;
+        return this;
+    }
+
+    public List<ProfileModel> getItems() {
+        return items;
+    }
+
+    public GraphQLUserListFetchResponse setItems(final List<ProfileModel> items) {
+        this.items = items;
+        return this;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        final GraphQLUserListFetchResponse that = (GraphQLUserListFetchResponse) o;
+        return Objects.equals(nextMaxId, that.nextMaxId) &&
+                Objects.equals(status, that.status) &&
+                Objects.equals(items, that.items);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(nextMaxId, status, items);
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return "GraphQLUserListFetchResponse{" +
+                "nextMaxId='" + nextMaxId + '\'' +
+                ", status='" + status + '\'' +
+                ", items=" + items +
+                '}';
+    }
+}

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

@@ -21,7 +21,9 @@ import java.util.List;
 import java.util.Map;
 
 import awais.instagrabber.models.FeedModel;
+import awais.instagrabber.models.ProfileModel;
 import awais.instagrabber.repositories.GraphQLRepository;
+import awais.instagrabber.repositories.responses.GraphQLUserListFetchResponse;
 import awais.instagrabber.repositories.responses.PostsFetchResponse;
 import awais.instagrabber.utils.Constants;
 import awais.instagrabber.utils.ResponseBodyUtils;
@@ -181,4 +183,61 @@ public class GraphQLService extends BaseService {
         }
         return new PostsFetchResponse(feedModels, hasNextPage, endCursor);
     }
+
+    public void fetchCommentLikers(final String commentId,
+                                    final String endCursor,
+                                    final ServiceCallback<GraphQLUserListFetchResponse> callback) {
+        final Map<String, String> queryMap = new HashMap<>();
+        queryMap.put("query_hash", "5f0b1f6281e72053cbc07909c8d154ae");
+        queryMap.put("variables", "{\"comment_id\":\"" + commentId + "\"," +
+                "\"first\":30," +
+                "\"after\":\"" + (endCursor == null ? "" : endCursor) + "\"}");
+        final Call<String> request = repository.fetch(queryMap);
+        request.enqueue(new Callback<String>() {
+            @Override
+            public void onResponse(@NonNull final Call<String> call, @NonNull final Response<String> response) {
+                final String rawBody = response.body();
+                if (rawBody == null) {
+                    Log.e(TAG, "Error occurred while fetching gql comment likes of "+commentId);
+                    callback.onSuccess(null);
+                    return;
+                }
+                try {
+                    final JSONObject body = new JSONObject(rawBody);
+                    final String status = body.getString("status");
+                    final JSONObject data = body.getJSONObject("data").getJSONObject("comment").getJSONObject("edge_liked_by");
+                    final JSONObject pageInfo = data.getJSONObject("page_info");
+                    final String endCursor = pageInfo.getBoolean("has_next_page") ? pageInfo.getString("end_cursor") : null;
+                    final JSONArray users = data.getJSONArray("edges");
+                    final int usersLen = users.length();
+                    final List<ProfileModel> userModels = new ArrayList<>();
+                    for (int j = 0; j < usersLen; ++j) {
+                        final JSONObject userObject = users.getJSONObject(j).getJSONObject("node");
+                        userModels.add(new ProfileModel(userObject.optBoolean("is_private"),
+                                false,
+                                userObject.optBoolean("is_verified"),
+                                userObject.getString("id"),
+                                userObject.getString("username"),
+                                userObject.optString("full_name"),
+                                null, null,
+                                userObject.getString("profile_pic_url"),
+                                null, 0, 0, 0, false, false, false, false, false));
+                    }
+                    callback.onSuccess(new GraphQLUserListFetchResponse(endCursor, status, userModels));
+                } catch (JSONException e) {
+                    Log.e(TAG, "onResponse", e);
+                    if (callback != null) {
+                        callback.onFailure(e);
+                    }
+                }
+            }
+
+            @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

@@ -356,8 +356,9 @@ public class MediaService extends BaseService {
     }
 
     public void fetchLikes(final String mediaId,
+                           final boolean isComment,
                            @NonNull final ServiceCallback<List<ProfileModel>> callback) {
-        final Call<String> likesRequest = repository.fetchLikes(mediaId);
+        final Call<String> likesRequest = repository.fetchLikes(mediaId, isComment ? "comment_likers" : "likers");
         likesRequest.enqueue(new Callback<String>() {
             @Override
             public void onResponse(@NonNull final Call<String> call, @NonNull final Response<String> response) {

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

@@ -62,4 +62,19 @@
             app:argType="string"
             app:nullable="false" />
     </action>
+
+    <include app:graph="@navigation/likes_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_likesViewerFragment"
+        app:destination="@id/likes_nav_graph">
+    <argument
+        android:name="postId"
+        app:argType="string"
+        app:nullable="false" />
+    <argument
+        android:name="isComment"
+        app:argType="boolean"
+        app:nullable="false" />
+    </action>
 </navigation>

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

@@ -68,10 +68,14 @@
     <action
         android:id="@+id/action_global_likesViewerFragment"
         app:destination="@id/likes_nav_graph">
-        <argument
-            android:name="postId"
-            app:argType="string"
-            app:nullable="false" />
+    <argument
+        android:name="postId"
+        app:argType="string"
+        app:nullable="false" />
+    <argument
+        android:name="isComment"
+        app:argType="boolean"
+        app:nullable="false" />
     </action>
 
     <fragment

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

@@ -62,10 +62,14 @@
     <action
         android:id="@+id/action_global_likesViewerFragment"
         app:destination="@id/likes_nav_graph">
-        <argument
-            android:name="postId"
-            app:argType="string"
-            app:nullable="false" />
+    <argument
+        android:name="postId"
+        app:argType="string"
+        app:nullable="false" />
+    <argument
+        android:name="isComment"
+        app:argType="boolean"
+        app:nullable="false" />
     </action>
 
     <include app:graph="@navigation/notification_viewer_nav_graph" />

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

@@ -66,6 +66,10 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </action>
 
     <include app:graph="@navigation/notification_viewer_nav_graph" />

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

@@ -33,6 +33,10 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </action>
 
     <action

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

@@ -27,6 +27,10 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </dialog>
 
     <action
@@ -36,5 +40,9 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </action>
 </navigation>

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

@@ -33,6 +33,10 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </action>
 
     <action

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

@@ -16,7 +16,6 @@
         app:destination="@id/notificationsViewer" />
 
     <include app:graph="@navigation/comments_nav_graph" />
-    <include app:graph="@navigation/likes_nav_graph" />
 
     <action
         android:id="@+id/action_global_commentsViewerFragment"
@@ -34,4 +33,19 @@
             app:argType="string"
             app:nullable="false" />
     </action>
+
+    <include app:graph="@navigation/likes_nav_graph" />
+
+    <action
+        android:id="@+id/action_global_likesViewerFragment"
+        app:destination="@id/likes_nav_graph">
+        <argument
+            android:name="postId"
+            app:argType="string"
+            app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
+    </action>
 </navigation>

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

@@ -33,9 +33,12 @@
             android:name="postId"
             app:argType="string"
             app:nullable="false" />
+        <argument
+            android:name="isComment"
+            app:argType="boolean"
+            app:nullable="false" />
     </action>
 
-
     <include app:graph="@navigation/hashtag_nav_graph" />
 
     <action

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

@@ -195,6 +195,7 @@
     <string name="downloader_too_many">You can only download 100 posts at a time. Don\'t be too greedy!</string>
     <string name="comment_viewer_copy_user">Copy username</string>
     <string name="comment_viewer_copy_comment">Copy comment</string>
+    <string name="comment_viewer_see_likers">View comment likers</string>
     <string name="comment_viewer_reply_comment">Reply to comment</string>
     <string name="comment_viewer_like_comment">Like comment</string>
     <string name="comment_viewer_unlike_comment">Unlike comment</string>