Add an option to delete all read posts.

app/src/main/java/ml/docilealligator/infinityforreddit/asynctasks/DeleteAllReadPostsAsyncTask.java

@@ -0,0 +1,33 @@
+package ml.docilealligator.infinityforreddit.asynctasks;
+
+import android.os.AsyncTask;
+
+import ml.docilealligator.infinityforreddit.RedditDataRoomDatabase;
+
+public class DeleteAllReadPostsAsyncTask extends AsyncTask<Void, Void, Void> {
+
+    public interface DeleteAllReadPostsAsyncTaskListener {
+        void success();
+    }
+
+    private RedditDataRoomDatabase redditDataRoomDatabase;
+    private DeleteAllReadPostsAsyncTaskListener deleteAllReadPostsAsyncTaskListener;
+
+    public DeleteAllReadPostsAsyncTask(RedditDataRoomDatabase redditDataRoomDatabase,
+                                       DeleteAllReadPostsAsyncTaskListener deleteAllReadPostsAsyncTaskListener) {
+        this.redditDataRoomDatabase = redditDataRoomDatabase;
+        this.deleteAllReadPostsAsyncTaskListener = deleteAllReadPostsAsyncTaskListener;
+    }
+
+    @Override
+    protected Void doInBackground(Void... voids) {
+        redditDataRoomDatabase.readPostDao().deleteAllReadPosts();
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(Void aVoid) {
+        super.onPostExecute(aVoid);
+        deleteAllReadPostsAsyncTaskListener.success();
+    }
+}

app/src/main/java/ml/docilealligator/infinityforreddit/readpost/ReadPostDao.java

@@ -20,4 +20,7 @@ public interface ReadPostDao {
 
     @Query("DELETE FROM read_posts WHERE rowid IN (SELECT rowid FROM read_posts LIMIT 100) AND username = :username")
     void deleteOldestReadPosts(String username);
+
+    @Query("DELETE FROM read_posts")
+    void deleteAllReadPosts();
 }

app/src/main/java/ml/docilealligator/infinityforreddit/settings/AdvancedPreferenceFragment.java

@@ -20,6 +20,7 @@ import javax.inject.Inject;
 import javax.inject.Named;
 
 import ml.docilealligator.infinityforreddit.asynctasks.DeleteAllPostLayoutsAsyncTask;
+import ml.docilealligator.infinityforreddit.asynctasks.DeleteAllReadPostsAsyncTask;
 import ml.docilealligator.infinityforreddit.asynctasks.DeleteAllSortTypesAsyncTask;
 import ml.docilealligator.infinityforreddit.asynctasks.DeleteAllSubredditsAsyncTask;
 import ml.docilealligator.infinityforreddit.asynctasks.DeleteAllThemesAsyncTask;
@@ -78,6 +79,7 @@ public class AdvancedPreferenceFragment extends PreferenceFragmentCompat {
         Preference deletePostLaoutPreference = findPreference(SharedPreferencesUtils.DELETE_ALL_POST_LAYOUT_DATA_IN_DATABASE);
         Preference deleteAllThemesPreference = findPreference(SharedPreferencesUtils.DELETE_ALL_THEMES_IN_DATABASE);
         Preference deletePostFeedScrolledPositionsPreference = findPreference(SharedPreferencesUtils.DELETE_FRONT_PAGE_SCROLLED_POSITIONS_IN_DATABASE);
+        Preference deleteReadPostsPreference = findPreference(SharedPreferencesUtils.DELETE_READ_POSTS_IN_DATABASE);
         Preference deleteAllLegacySettingsPreference = findPreference(SharedPreferencesUtils.DELETE_ALL_LEGACY_SETTINGS);
         Preference resetAllSettingsPreference = findPreference(SharedPreferencesUtils.RESET_ALL_SETTINGS);
 
@@ -168,6 +170,20 @@ public class AdvancedPreferenceFragment extends PreferenceFragmentCompat {
             });
         }
 
+        if (deleteReadPostsPreference != null) {
+            deleteReadPostsPreference.setOnPreferenceClickListener(preference -> {
+                new MaterialAlertDialogBuilder(activity, R.style.MaterialAlertDialogTheme)
+                        .setTitle(R.string.are_you_sure)
+                        .setPositiveButton(R.string.yes, (dialogInterface, i)
+                                -> new DeleteAllReadPostsAsyncTask(mRedditDataRoomDatabase, () -> {
+                            Toast.makeText(activity, R.string.delete_all_read_posts_success, Toast.LENGTH_SHORT).show();
+                        }).execute())
+                        .setNegativeButton(R.string.no, null)
+                        .show();
+                return true;
+            });
+        }
+
         if (deleteAllLegacySettingsPreference != null) {
             deleteAllLegacySettingsPreference.setOnPreferenceClickListener(preference -> {
                 new MaterialAlertDialogBuilder(activity, R.style.MaterialAlertDialogTheme)

app/src/main/java/ml/docilealligator/infinityforreddit/utils/SharedPreferencesUtils.java

@@ -110,6 +110,7 @@ public class SharedPreferencesUtils {
     public static final String DELETE_ALL_POST_LAYOUT_DATA_IN_DATABASE = "delete_all_post_layout_data_in_database";
     public static final String DELETE_ALL_THEMES_IN_DATABASE = "delete_all_themes_in_database";
     public static final String DELETE_FRONT_PAGE_SCROLLED_POSITIONS_IN_DATABASE = "delete_front_page_scrolled_positions_in_database";
+    public static final String DELETE_READ_POSTS_IN_DATABASE = "delete_read_posts_in_database";
     public static final String DELETE_ALL_LEGACY_SETTINGS = "delete_all_legacy_settings";
     public static final String RESET_ALL_SETTINGS = "reset_all_settings";
     public static final String IMAGE_DOWNLOAD_LOCATION = "image_download_location";

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

@@ -446,6 +446,7 @@
     <string name="settings_delete_all_post_layout_data_in_database_title">Delete All Post Layouts in Database</string>
     <string name="settings_delete_all_themes_in_database_title">Delete All Themes in Database</string>
     <string name="settings_delete_front_page_scrolled_positions_in_database_title">Delete All Front Page Scrolled Positions in Database</string>
+    <string name="settings_delete_read_posts_in_database_title">Delete All Read Posts in Database</string>
     <string name="settings_delete_all_legacy_settings_title">Delete All Legacy Settings</string>
     <string name="settings_reset_all_settings_title">Reset All Settings</string>
     <string name="settings_advanced_settings_summary">Clean the database and shared preferences</string>
@@ -820,6 +821,7 @@
     <string name="delete_all_post_layouts_success">Delete all post layouts successfully</string>
     <string name="delete_all_themes_success">Delete all themes successfully</string>
     <string name="delete_all_front_page_scrolled_positions_success">Delete all scrolled positions in front page successfully</string>
+    <string name="delete_all_read_posts_success">Delete all read posts successfully</string>
     <string name="delete_all_legacy_settings_success">Delete all legacy settings successfully</string>
     <string name="reset_all_settings_success">Reset all settings successfully</string>
 

app/src/main/res/xml/advanced_preferences.xml

@@ -26,6 +26,10 @@
         app:key="delete_front_page_scrolled_positions_in_database"
         app:title="@string/settings_delete_front_page_scrolled_positions_in_database_title" />
 
+    <Preference
+        app:key="delete_read_posts_in_database"
+        app:title="@string/settings_delete_read_posts_in_database_title" />
+
     <Preference
         app:key="delete_all_legacy_settings"
         app:title="@string/settings_delete_all_legacy_settings_title" />