GitNex/app/src/main/java/org/mian/gitnex/fragments/DraftsFragment.java

package org.mian.gitnex.fragments;

import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import androidx.annotation.NonNull;
import androidx.appcompat.widget.SearchView;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import org.mian.gitnex.R;
import org.mian.gitnex.activities.MainActivity;
import org.mian.gitnex.adapters.DraftsAdapter;
import org.mian.gitnex.database.api.BaseApi;
import org.mian.gitnex.database.api.DraftsApi;
import org.mian.gitnex.database.models.DraftWithRepository;
import org.mian.gitnex.databinding.FragmentDraftsBinding;
import org.mian.gitnex.helpers.TinyDB;
import org.mian.gitnex.helpers.Toasty;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

/**
 * @author M M Arif
 */

public class DraftsFragment extends Fragment {

	private FragmentDraftsBinding fragmentDraftsBinding;
	private Context ctx;
	private DraftsAdapter adapter;
	private DraftsApi draftsApi;
	private List<DraftWithRepository> draftsList_;
	private int currentActiveAccountId;

	@Override
	public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		fragmentDraftsBinding = FragmentDraftsBinding.inflate(inflater, container, false);

		ctx = getContext();
		setHasOptionsMenu(true);

		((MainActivity) requireActivity()).setActionBarTitle(getResources().getString(R.string.titleDrafts));

		TinyDB tinyDb = TinyDB.getInstance(ctx);

		draftsList_ = new ArrayList<>();
		draftsApi = BaseApi.getInstance(ctx, DraftsApi.class);

		fragmentDraftsBinding.recyclerView.setHasFixedSize(true);
		fragmentDraftsBinding.recyclerView.setLayoutManager(new LinearLayoutManager(ctx));

		adapter = new DraftsAdapter(getContext(), getChildFragmentManager(), draftsList_);
		currentActiveAccountId = tinyDb.getInt("currentActiveAccountId");
		fragmentDraftsBinding.pullToRefresh.setOnRefreshListener(() -> new Handler(Looper.getMainLooper()).postDelayed(() -> {

			draftsList_.clear();
			fetchDataAsync(currentActiveAccountId);

		}, 250));

		fetchDataAsync(currentActiveAccountId);

		return fragmentDraftsBinding.getRoot();
	}

	private void fetchDataAsync(int accountId) {

		draftsApi.getDrafts(accountId).observe(getViewLifecycleOwner(), drafts -> {

			fragmentDraftsBinding.pullToRefresh.setRefreshing(false);
			assert drafts != null;
			if(drafts.size() > 0) {

				draftsList_.clear();
				fragmentDraftsBinding.noData.setVisibility(View.GONE);
				draftsList_.addAll(drafts);
				adapter.notifyDataChanged();
				fragmentDraftsBinding.recyclerView.setAdapter(adapter);
			}
			else {

				fragmentDraftsBinding.noData.setVisibility(View.VISIBLE);
			}
		});
	}

	@Override
	public void onResume() {
		super.onResume();
		draftsList_.clear();
		fetchDataAsync(currentActiveAccountId);
	}

	public void deleteAllDrafts(int accountId) {

		if(draftsList_.size() > 0) {

			Objects.requireNonNull(BaseApi.getInstance(ctx, DraftsApi.class)).deleteAllDrafts(accountId);
			draftsList_.clear();
			adapter.notifyDataChanged();
			Toasty.success(ctx, getResources().getString(R.string.draftsDeleteSuccess));
		}
		else {
			Toasty.warning(ctx, getResources().getString(R.string.draftsListEmpty));
		}

	}

	@Override
	public void onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflater) {

		inflater.inflate(R.menu.generic_nav_dotted_menu, menu);
		inflater.inflate(R.menu.search_menu, menu);
		super.onCreateOptionsMenu(menu, inflater);

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

		searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {

			@Override
			public boolean onQueryTextSubmit(String query) {

				return false;
			}

			@Override
			public boolean onQueryTextChange(String newText) {

				filter(newText);
				return false;
			}
		});
	}

	private void filter(String text) {

		List<DraftWithRepository> arr = new ArrayList<>();

		for(DraftWithRepository d : draftsList_) {

			if(d == null || d.getRepositoryOwner() == null || d.getRepositoryName() == null || d.getDraftText() == null) {
				continue;
			}

			if(d.getRepositoryOwner().toLowerCase().contains(text) || d.getRepositoryName().toLowerCase().contains(text) || d.getDraftText().toLowerCase().contains(text) || String.valueOf(d.getIssueId())
				.contains(text)) {
				arr.add(d);
			}
		}

		adapter.updateList(arr);
	}

}