Add greader folder creation/update/deletion requests (creation request doesn't work though)

app/src/main/java/com/readrops/app/repositories/FreshRSSRepository.java

@@ -122,17 +122,25 @@ public class FreshRSSRepository extends ARepository {
 
     @Override
     public Completable addFolder(Folder folder) {
-        return null;
+        FreshRSSAPI api = new FreshRSSAPI(account.toCredentials());
+
+        return api.createFolder(account.getWriteToken(), folder.getName());
     }
 
     @Override
     public Completable updateFolder(Folder folder) {
-        return null;
+        FreshRSSAPI api = new FreshRSSAPI(account.toCredentials());
+
+        return api.updateFolder(account.getWriteToken(), folder.getRemoteId(), folder.getName())
+                .andThen(super.updateFolder(folder));
     }
 
     @Override
     public Completable deleteFolder(Folder folder) {
-        return null;
+        FreshRSSAPI api = new FreshRSSAPI(account.toCredentials());
+
+        return api.deleteFolder(account.getWriteToken(), folder.getRemoteId())
+                .andThen(super.deleteFolder(folder));
     }
 
     @Override

readropslibrary/src/main/java/com/readrops/readropslibrary/services/freshrss/FreshRSSAPI.java

@@ -116,6 +116,18 @@ public class FreshRSSAPI extends API<FreshRSSService> {
         return api.updateFeed(token, "feed/" + feedUrl, title, folderId, "edit");
     }
 
+    public Completable createFolder(String token, String tagName) {
+        return api.createFolder(token, "user/-/label/" + tagName);
+    }
+
+    public Completable updateFolder(String token, String folderId, String name) {
+        return api.updateFolder(token, folderId, "user/-/label/" + name);
+    }
+
+    public Completable deleteFolder(String token, String folderId) {
+        return api.deleteFolder(token, folderId);
+    }
+
     public enum EXCLUDE_ITEMS {
         EXCLUDE_READ_ITEMS("user/-/state/com.google/read");
 

readropslibrary/src/main/java/com/readrops/readropslibrary/services/freshrss/FreshRSSService.java

@@ -49,4 +49,16 @@ public interface FreshRSSService {
     @FormUrlEncoded
     @POST("reader/api/0/subscription/edit")
     Completable updateFeed(@Field("T") String token, @Field("s") String feedUrl, @Field("t") String title, @Field("a") String folderId, @Field("ac") String action);
+
+    @FormUrlEncoded
+    @POST("reader/api/0/edit-tag")
+    Completable createFolder(@Field("T") String token, @Field("a") String tagName);
+
+    @FormUrlEncoded
+    @POST("reader/api/0/rename-tag")
+    Completable updateFolder(@Field("T") String token, @Field("s") String folderId, @Field("dest") String newFolderId);
+
+    @FormUrlEncoded
+    @POST("reader/api/0/disable-tag")
+    Completable deleteFolder(@Field("T") String token, @Field("s") String folderId);
 }