Shift contributions to use Room DB (#3324)

* Part of #3127
* Added Room Dependency
* Shifted ContributionsDao to use RoomDB

* Save and Fetch contributions via RoomDAO

* Bugfixes, fixed test cases, injected schedulers for ContributionsPresenter

* removed stetho

* Fixed ReviewHelperTest cases

* Fixed test cases in DeleteHelperTest

* Fetch all contributions [TODO add pagination to use this, maybe later in a seperate PR]

* Update Schema false in AppDatabase

* removed parameter from fetchControbutions

* Added logs for fetch contributions

* Fixed test case ContributionsPresenter

* Added an autogenerate primary key, submit save contributions on executor

* fixed getItemAtPosition

* MainActivity Config changes +=orientation

* BugFixes
* Make AppDataBase Singleton
* Set _id as autogenerate primary key [replacing the previously used filename, seems like they are not unique]
* Replace Execxutor Utils with Subscribers on Singles in UploadService
* BugFix, Upload Progress

* Remove un-nescessary null check on contributions in ContributionsListAdapter

* removed ContributionsListFragment [not-implemeted]

* Review suggested changes
* removed un-nescessary null checks
* provide ContributionsDao
* Minor bug fixes

* wip

* delete existing contributions table (from the existing db) on upgrade

* remove un-nescessary null checks in test classes

* shifted media to be a local variable in ReviewHelperTest

* removed captured folder

* Dispose composite disposables in UploadService

* replaced size check with isEmpty ContributionsPresenter

* transform saveContributions to a Completable

* Addressed comments in review
* Typo in Contributions
* ReasonBuilderTest (create media object instead of mocking)
* Use global Gson object instead of creating a new one in Converters

* Provide Gson to Converters from the CommonsApplicationComponent

* use static method instead of field instead of static field to provide GSON in Converters

* Modified gitignore to exclude captures/*

app/src/main/java/fr/free/nrw/commons/di/CommonsApplicationComponent.java

@@ -1,5 +1,7 @@
 package fr.free.nrw.commons.di;
 
+import com.google.gson.Gson;
+
 import javax.inject.Singleton;
 
 import dagger.Component;
@@ -10,7 +12,6 @@ import fr.free.nrw.commons.CommonsApplication;
 import fr.free.nrw.commons.auth.LoginActivity;
 import fr.free.nrw.commons.contributions.ContributionViewHolder;
 import fr.free.nrw.commons.contributions.ContributionsModule;
-import fr.free.nrw.commons.contributions.ContributionsSyncAdapter;
 import fr.free.nrw.commons.nearby.PlaceRenderer;
 import fr.free.nrw.commons.review.ReviewController;
 import fr.free.nrw.commons.settings.SettingsFragment;
@@ -37,8 +38,6 @@ import fr.free.nrw.commons.widget.PicOfDayAppWidget;
 public interface CommonsApplicationComponent extends AndroidInjector<ApplicationlessInjection> {
     void inject(CommonsApplication application);
 
-    void inject(ContributionsSyncAdapter syncAdapter);
-
     void inject(LoginActivity activity);
 
     void inject(SettingsFragment fragment);
@@ -56,9 +55,12 @@ public interface CommonsApplicationComponent extends AndroidInjector<Application
 
     void inject(ContributionViewHolder viewHolder);
 
+    Gson gson();
+
     @Component.Builder
     @SuppressWarnings({"WeakerAccess", "unused"})
     interface Builder {
+
         Builder appModule(CommonsApplicationModule applicationModule);
 
         CommonsApplicationComponent build();

app/src/main/java/fr/free/nrw/commons/di/CommonsApplicationModule.java

@@ -6,6 +6,7 @@ import android.content.Context;
 import android.view.inputmethod.InputMethodManager;
 
 import androidx.collection.LruCache;
+import androidx.room.Room;
 
 import com.github.varunpant.quadtree.QuadTree;
 import com.google.gson.Gson;
@@ -27,8 +28,9 @@ import fr.free.nrw.commons.BuildConfig;
 import fr.free.nrw.commons.R;
 import fr.free.nrw.commons.auth.AccountUtil;
 import fr.free.nrw.commons.auth.SessionManager;
-import fr.free.nrw.commons.caching.CacheController;
+import fr.free.nrw.commons.contributions.ContributionDao;
 import fr.free.nrw.commons.data.DBOpenHelper;
+import fr.free.nrw.commons.db.AppDatabase;
 import fr.free.nrw.commons.kvstore.JsonKvStore;
 import fr.free.nrw.commons.location.LocationServiceManager;
 import fr.free.nrw.commons.settings.Prefs;
@@ -53,6 +55,7 @@ public class CommonsApplicationModule {
     private Context applicationContext;
     public static final String IO_THREAD="io_thread";
     public static final String MAIN_THREAD="main_thread";
+    private AppDatabase appDatabase;
 
     public CommonsApplicationModule(Context applicationContext) {
         this.applicationContext = applicationContext;
@@ -229,4 +232,16 @@ public class CommonsApplicationModule {
     public QuadTree providesQuadTres() {
         return new QuadTree<>(-180, -90, +180, +90);
     }
+
+    @Provides
+    @Singleton
+    public AppDatabase provideAppDataBase() {
+        appDatabase=Room.databaseBuilder(applicationContext, AppDatabase.class, "commons_room.db").build();
+        return appDatabase;
+    }
+
+    @Provides
+    public ContributionDao providesContributionsDao() {
+        return appDatabase.getContributionDao();
+    }
 }

app/src/main/java/fr/free/nrw/commons/di/ContentProviderBuilderModule.java

@@ -5,7 +5,6 @@ import dagger.android.ContributesAndroidInjector;
 import fr.free.nrw.commons.bookmarks.locations.BookmarkLocationsContentProvider;
 import fr.free.nrw.commons.bookmarks.pictures.BookmarkPicturesContentProvider;
 import fr.free.nrw.commons.category.CategoryContentProvider;
-import fr.free.nrw.commons.contributions.ContributionsContentProvider;
 import fr.free.nrw.commons.explore.recentsearches.RecentSearchesContentProvider;
 
 /**
@@ -17,9 +16,6 @@ import fr.free.nrw.commons.explore.recentsearches.RecentSearchesContentProvider;
 @SuppressWarnings({"WeakerAccess", "unused"})
 public abstract class ContentProviderBuilderModule {
 
-    @ContributesAndroidInjector
-    abstract ContributionsContentProvider bindContributionsContentProvider();
-
     @ContributesAndroidInjector
     abstract CategoryContentProvider bindCategoryContentProvider();