improvements and implement parse task in delete post

app/src/main/java/gr/thmmy/mthmmy/activities/topic/TopicActivity.java

@@ -12,7 +12,6 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.Snackbar;
-import android.support.v4.content.ContextCompat;
 import android.support.v4.content.res.ResourcesCompat;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatDelegate;
@@ -39,7 +38,6 @@ import android.widget.Toast;
 import java.util.ArrayList;
 
 import gr.thmmy.mthmmy.R;
-import gr.thmmy.mthmmy.activities.topic.tasks.DeleteTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.EditTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForEditTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForReply;
@@ -52,6 +50,7 @@ import gr.thmmy.mthmmy.model.Post;
 import gr.thmmy.mthmmy.model.ThmmyPage;
 import gr.thmmy.mthmmy.utils.CustomLinearLayoutManager;
 import gr.thmmy.mthmmy.utils.HTMLUtils;
+import gr.thmmy.mthmmy.utils.parsing.Parcel;
 import gr.thmmy.mthmmy.utils.parsing.ParseHelpers;
 import gr.thmmy.mthmmy.viewmodel.TopicViewModel;
 import me.zhanghai.android.materialprogressbar.MaterialProgressBar;
@@ -498,23 +497,15 @@ public class TopicActivity extends BaseActivity implements TopicAdapter.OnPostFo
                 progressBar.setVisibility(ProgressBar.GONE);
             }
         });
-        viewModel.setDeleteTaskCallbacks(new DeleteTask.DeleteTaskCallbacks() {
-            @Override
-            public void onDeleteTaskStarted() {
-                progressBar.setVisibility(ProgressBar.VISIBLE);
-            }
-
-            @Override
-            public void onDeleteTaskFinished(boolean result) {
-                progressBar.setVisibility(ProgressBar.GONE);
-
-                if (result) {
-                    Timber.i("Post deleted successfully");
-                    viewModel.reloadPage();
-                } else {
-                    Timber.w("Failed to delete post");
-                    Toast.makeText(getBaseContext(), "Delete failed!", Toast.LENGTH_SHORT).show();
-                }
+        viewModel.setDeleteTaskStartedListener(() -> progressBar.setVisibility(ProgressBar.VISIBLE));
+        viewModel.setDeleteTaskFinishedListener((resultCode, data) -> {
+            progressBar.setVisibility(ProgressBar.GONE);
+            if (resultCode == Parcel.ResultCode.SUCCESSFUL) {
+                Timber.i("Post deleted successfully");
+                viewModel.reloadPage();
+            } else {
+                Timber.w("Failed to delete post");
+                Toast.makeText(getBaseContext(), "Delete failed!", Toast.LENGTH_SHORT).show();
             }
         });
         viewModel.setReplyFinishListener(new ReplyTask.ReplyTaskCallbacks() {

app/src/main/java/gr/thmmy/mthmmy/activities/topic/tasks/DeleteTask.java

@@ -1,62 +1,39 @@
 package gr.thmmy.mthmmy.activities.topic.tasks;
 
-import android.os.AsyncTask;
+import org.jsoup.nodes.Document;
 
 import java.io.IOException;
 
-import gr.thmmy.mthmmy.activities.topic.Posting;
-import gr.thmmy.mthmmy.base.BaseApplication;
+import gr.thmmy.mthmmy.utils.parsing.NetworkTask;
+import gr.thmmy.mthmmy.utils.parsing.Parcel;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
-import timber.log.Timber;
 
-public class DeleteTask extends AsyncTask<String, Void, Boolean> {
-    private DeleteTaskCallbacks listener;
+public class DeleteTask extends NetworkTask<Void> {
 
-    public DeleteTask(DeleteTaskCallbacks listener) {
-        this.listener = listener;
+    public DeleteTask(OnParseTaskStartedListener onParseTaskStartedListener, OnParseTaskFinishedListener<Void> onParseTaskFinishedListener) {
+        super(onParseTaskStartedListener, onParseTaskFinishedListener);
     }
 
     @Override
-    protected void onPreExecute() {
-        listener.onDeleteTaskStarted();
-    }
-
-    @Override
-    protected Boolean doInBackground(String... args) {
+    protected Response sendRequest(OkHttpClient client, String... input) throws IOException {
         Request delete = new Request.Builder()
-                .url(args[0])
+                .url(input[0])
                 .header("User-Agent",
                         "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36")
                 .build();
-
-        try {
-            OkHttpClient client = BaseApplication.getInstance().getClient();
-            client.newCall(delete).execute();
-            Response response = client.newCall(delete).execute();
-            //Response response = client.newCall(delete).execute();
-            switch (Posting.replyStatus(response)) {
-                case SUCCESSFUL:
-                    BaseApplication.getInstance().logFirebaseAnalyticsEvent("post_deletion", null);
-                    return true;
-                default:
-                    Timber.e("Something went wrong. Request string: %s", delete.toString());
-                    return false;
-            }
-        } catch (IOException e) {
-            Timber.e(e, "Delete failed.");
-            return false;
-        }
+        client.newCall(delete).execute();
+        return client.newCall(delete).execute();
     }
 
     @Override
-    protected void onPostExecute(Boolean result) {
-        listener.onDeleteTaskFinished(result);
+    protected Void performTask(Document document) {
+        return null;
     }
 
-    public interface DeleteTaskCallbacks {
-        void onDeleteTaskStarted();
-        void onDeleteTaskFinished(boolean result);
+    @Override
+    protected int getResultCode(Response response, Void data) {
+        return Parcel.ResultCode.SUCCESSFUL;
     }
 }

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/NetworkTask.java

@@ -7,7 +7,6 @@ import java.io.IOException;
 
 import gr.thmmy.mthmmy.base.BaseApplication;
 import okhttp3.OkHttpClient;
-import okhttp3.Request;
 import okhttp3.Response;
 import timber.log.Timber;
 
@@ -30,15 +29,21 @@ public abstract class NetworkTask<T> extends ExternalAsyncTask<String, Parcel<T>
 
     @Override
     protected final Parcel<T> doInBackground(String... input) {
-        Response response = sendRequest(BaseApplication.getInstance().getClient(), input);
+        Response response;
+        try {
+            response = sendRequest(BaseApplication.getInstance().getClient(), input);
+        } catch (IOException e) {
+            Timber.e(e, "Error connecting to thmmy.gr");
+            return new Parcel<>(Parcel.ResultCode.NETWORK_ERROR, null);
+        }
         String responseBodyString;
         try {
             responseBodyString = response.body().string();
         } catch (NullPointerException npe) {
-            Timber.e(npe, "Invalid response. Detatails: https://square.github.io/okhttp/3.x/okhttp/okhttp3/Response.html#body--");
+            Timber.wtf(npe, "Invalid response. Detatails: https://square.github.io/okhttp/3.x/okhttp/okhttp3/Response.html#body--");
             return new Parcel<>(Parcel.ResultCode.NETWORK_ERROR, null);
         } catch (IOException e) {
-            Timber.e(e);
+            Timber.e(e, "Error getting response body string");
             return new Parcel<>(Parcel.ResultCode.NETWORK_ERROR, null);
         }
         try {
@@ -62,9 +67,9 @@ public abstract class NetworkTask<T> extends ExternalAsyncTask<String, Parcel<T>
             super.onPostExecute(tParcel);
     }
 
-    protected abstract Response sendRequest(OkHttpClient client, String... input);
+    protected abstract Response sendRequest(OkHttpClient client, String... input) throws IOException;
 
-    protected abstract T performTask(Document document) throws ParseException;
+    protected abstract T performTask(Document document);
 
     protected abstract int getResultCode(Response response, T data);
 
@@ -73,6 +78,6 @@ public abstract class NetworkTask<T> extends ExternalAsyncTask<String, Parcel<T>
     }
 
     public interface OnParseTaskFinishedListener<T> {
-        void onParseFinish(int resultCOde, T data);
+        void onParseFinish(int resultCode, T data);
     }
 }

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/NewParseTask.java

@@ -16,7 +16,7 @@ public abstract class NewParseTask<T> extends NetworkTask<T> {
     public NewParseTask() {}
 
     @Override
-    protected final T performTask(Document document) throws ParseException {
+    protected final T performTask(Document document) {
         try {
             return parse(document);
         } catch (Exception e) {
@@ -24,5 +24,5 @@ public abstract class NewParseTask<T> extends NetworkTask<T> {
         }
     }
 
-    protected abstract T parse (Document document);
+    protected abstract T parse (Document document) throws ParseException;
 }

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/ParseException.java

@@ -3,7 +3,7 @@ package gr.thmmy.mthmmy.utils.parsing;
 /**
  * ParseException is to be used for errors while parsing.
  */
-public class ParseException extends Exception {
+public class ParseException extends RuntimeException {
     public ParseException() {}
 
     public ParseException(String message)

app/src/main/java/gr/thmmy/mthmmy/viewmodel/TopicViewModel.java

@@ -9,8 +9,8 @@ import android.preference.PreferenceManager;
 import java.util.ArrayList;
 
 import gr.thmmy.mthmmy.activities.settings.SettingsActivity;
-import gr.thmmy.mthmmy.activities.topic.tasks.DeleteTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.EditTask;
+import gr.thmmy.mthmmy.activities.topic.tasks.DeleteTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForEditResult;
 import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForEditTask;
 import gr.thmmy.mthmmy.activities.topic.tasks.PrepareForReply;
@@ -50,7 +50,8 @@ public class TopicViewModel extends BaseViewModel implements TopicTask.OnTopicTa
 
     //callbacks for topic activity
     private TopicTask.TopicTaskObserver topicTaskObserver;
-    private DeleteTask.DeleteTaskCallbacks deleteTaskCallbacks;
+    private DeleteTask.OnParseTaskStartedListener deleteTaskStartedListener;
+    private DeleteTask.OnParseTaskFinishedListener<Void> deleteTaskFinishedListener;
     private ReplyTask.ReplyTaskCallbacks replyFinishListener;
     private PrepareForEditTask.PrepareForEditCallbacks prepareForEditCallbacks;
     private EditTask.EditTaskCallbacks editTaskCallbacks;
@@ -133,7 +134,7 @@ public class TopicViewModel extends BaseViewModel implements TopicTask.OnTopicTa
 
     public void deletePost(String postDeleteUrl) {
         Timber.i("Deleting post");
-        new DeleteTask(deleteTaskCallbacks).execute(postDeleteUrl);
+        new DeleteTask(deleteTaskStartedListener, deleteTaskFinishedListener).execute(postDeleteUrl);
     }
 
     public void prepareForEdit(int position, String postEditURL) {
@@ -313,8 +314,13 @@ public class TopicViewModel extends BaseViewModel implements TopicTask.OnTopicTa
         this.topicTaskObserver = topicTaskObserver;
     }
 
-    public void setDeleteTaskCallbacks(DeleteTask.DeleteTaskCallbacks deleteTaskCallbacks) {
-        this.deleteTaskCallbacks = deleteTaskCallbacks;
+
+    public void setDeleteTaskStartedListener(DeleteTask.OnParseTaskStartedListener deleteTaskStartedListener) {
+        this.deleteTaskStartedListener = deleteTaskStartedListener;
+    }
+
+    public void setDeleteTaskFinishedListener(DeleteTask.OnParseTaskFinishedListener<Void> deleteTaskFinishedListener) {
+        this.deleteTaskFinishedListener = deleteTaskFinishedListener;
     }
 
     public void setReplyFinishListener(ReplyTask.ReplyTaskCallbacks replyFinishListener) {