GitNex/app/src/main/java/org/mian/gitnex/activities/RepoWatchersActivity.java

package org.mian.gitnex.activities;

import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import androidx.appcompat.widget.SearchView;
import androidx.lifecycle.ViewModelProvider;
import org.mian.gitnex.R;
import org.mian.gitnex.adapters.UserGridAdapter;
import org.mian.gitnex.databinding.ActivityRepoWatchersBinding;
import org.mian.gitnex.helpers.contexts.RepositoryContext;
import org.mian.gitnex.viewmodels.RepoWatchersViewModel;

/**
 * @author M M Arif
 */
public class RepoWatchersActivity extends BaseActivity {

	private View.OnClickListener onClickListener;
	private UserGridAdapter adapter;
	private ActivityRepoWatchersBinding activityRepoWatchersBinding;
	private RepositoryContext repository;

	@Override
	public void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		activityRepoWatchersBinding = ActivityRepoWatchersBinding.inflate(getLayoutInflater());
		setContentView(activityRepoWatchersBinding.getRoot());

		setSupportActionBar(activityRepoWatchersBinding.toolbar);

		repository = RepositoryContext.fromIntent(getIntent());
		final String repoOwner = repository.getOwner();
		final String repoName = repository.getName();

		initCloseListener();
		activityRepoWatchersBinding.close.setOnClickListener(onClickListener);

		activityRepoWatchersBinding.toolbarTitle.setText(R.string.repoWatchersInMenu);

		fetchDataAsync(repoOwner, repoName);
	}

	private void fetchDataAsync(String repoOwner, String repoName) {

		RepoWatchersViewModel repoWatchersModel =
				new ViewModelProvider(this).get(RepoWatchersViewModel.class);

		repoWatchersModel
				.getRepoWatchers(repoOwner, repoName, ctx)
				.observe(
						this,
						watchersListMain -> {
							adapter = new UserGridAdapter(ctx, watchersListMain);

							if (adapter.getCount() > 0) {

								activityRepoWatchersBinding.gridView.setAdapter(adapter);
								activityRepoWatchersBinding.noDataWatchers.setVisibility(View.GONE);
							} else {

								adapter.notifyDataSetChanged();
								activityRepoWatchersBinding.gridView.setAdapter(adapter);
								activityRepoWatchersBinding.noDataWatchers.setVisibility(
										View.VISIBLE);
							}

							activityRepoWatchersBinding.progressBar.setVisibility(View.GONE);
						});
	}

	private void initCloseListener() {

		onClickListener = view -> finish();
	}

	@Override
	public void onResume() {
		super.onResume();
		repository.checkAccountSwitch(this);
	}

	@Override
	public boolean onCreateOptionsMenu(final Menu menu) {

		final MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.search_menu, menu);

		MenuItem searchItem = menu.findItem(R.id.action_search);
		SearchView searchView = (SearchView) searchItem.getActionView();
		searchView.setImeOptions(EditorInfo.IME_ACTION_DONE);

		searchView.setOnQueryTextListener(
				new androidx.appcompat.widget.SearchView.OnQueryTextListener() {

					@Override
					public boolean onQueryTextSubmit(String query) {
						return true;
					}

					@Override
					public boolean onQueryTextChange(String newText) {

						if (activityRepoWatchersBinding.gridView.getAdapter() != null) {
							adapter.getFilter().filter(newText);
						}
						return false;
					}
				});

		return true;
	}
}