EventStatsFragment.java

package com.thebluealliance.androidclient.fragments.event;

import com.thebluealliance.androidclient.R;
import com.thebluealliance.androidclient.TbaLogger;
import com.thebluealliance.androidclient.activities.TeamAtEventActivity;
import com.thebluealliance.androidclient.adapters.EventStatsFragmentAdapter;
import com.thebluealliance.androidclient.adapters.ListViewAdapter;
import com.thebluealliance.androidclient.binders.StatsListBinder;
import com.thebluealliance.androidclient.datafeed.combiners.TwoJsonCombiner;
import com.thebluealliance.androidclient.fragments.DatafeedFragment;
import com.thebluealliance.androidclient.helpers.EventHelper;
import com.thebluealliance.androidclient.helpers.TeamHelper;
import com.thebluealliance.androidclient.listitems.ListElement;
import com.thebluealliance.androidclient.listitems.ListItem;
import com.thebluealliance.androidclient.models.NoDataViewParams;
import com.thebluealliance.androidclient.subscribers.StatsListSubscriber;
import com.thebluealliance.androidclient.views.NoDataView;

import android.os.Bundle;
import android.os.Parcelable;
import android.support.v7.app.AlertDialog;
import android.util.SparseArray;
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.widget.ListView;
import android.widget.ProgressBar;
import android.widget.RadioGroup;

import java.util.Arrays;
import java.util.List;

import rx.Observable;

/**
 * Fragment that displays the team statistics for an FRC event.
 *
 * @author Phil Lopreiato
 * @author Bryce Matsuda
 * @author Nathan Walters
 */
public class EventStatsFragment
  extends DatafeedFragment<StatsListSubscriber.Model, List<ListItem>, StatsListSubscriber, StatsListBinder> {

    private static final String KEY = "eventKey", SORT = "sort";

    private AlertDialog mStatsDialog;
    private String[] mItems;
    private String mEventKey;
    private Parcelable mListState;
    private SparseArray<Parcelable> mRadioState;
    private EventStatsFragmentAdapter mAdapter;
    private ListView mListView;
    private RadioGroup mRadioGroup;
    private String mStatSortCategory;
    private int mSelectedStatSort = -1;

    /**
     * Creates new event stats fragment for an event.
     *
     * @param eventKey key that represents an FRC event
     * @return new event stats fragment.
     */
    public static EventStatsFragment newInstance(String eventKey) {
        EventStatsFragment f = new EventStatsFragment();
        Bundle data = new Bundle();
        data.putString(KEY, eventKey);
        f.setArguments(data);
        return f;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        // Reload key if returning from another fragment/activity
        if (getArguments() != null) {
            mEventKey = getArguments().getString(KEY, "");
        }
        super.onCreate(savedInstanceState);

        if (savedInstanceState != null) {
            mSelectedStatSort = savedInstanceState.getInt(SORT, -1);
        }
        if (mSelectedStatSort == -1) {
            /* Sort has not yet been set. Default to OPR */
            mSelectedStatSort = Arrays.binarySearch(getResources().getStringArray(R.array.statsDialogArray),
              getString(R.string.dialog_stats_sort_opr));
        }

        // Setup stats sort dialog box
        mItems = getResources().getStringArray(R.array.statsDialogArray);
        mStatSortCategory = getSortTypeFromPosition(mSelectedStatSort);
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle(R.string.dialog_stats_title)
          .setSingleChoiceItems(mItems, mSelectedStatSort, (dialogInterface, i) -> {
              mSelectedStatSort = i;
              mStatSortCategory = getSortTypeFromPosition(mSelectedStatSort);

              dialogInterface.dismiss();

              mAdapter = (EventStatsFragmentAdapter) mListView.getAdapter();
              if (mAdapter != null && mStatSortCategory != null) {
                  mAdapter.sortStats(mStatSortCategory);
              }
          }).setNegativeButton(R.string.dialog_cancel, (dialog, id) -> {
            dialog.cancel();
        });

        mStatsDialog = builder.create();
        setHasOptionsMenu(true);
        mSubscriber.setStatToSortBy(mStatSortCategory);
        mSubscriber.setEventYear(EventHelper.getYear(mEventKey));
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.stats_sort_menu, menu);
        inflater.inflate(R.menu.stats_help_menu, menu);
        mBinder.setMenu(menu);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Setup views & listeners
        View view = inflater.inflate(R.layout.fragment_event_stats, null);
        mBinder.setRootView(view);
        mListView = (ListView) view.findViewById(R.id.list);
        mRadioGroup = (RadioGroup) view.findViewById(R.id.stats_type_selector);

        ProgressBar mProgressBar = (ProgressBar) view.findViewById(R.id.progress);
        // Either reload data if returning from another fragment/activity
        // Or get data if viewing fragment for the first time.
        if (mAdapter != null) {
            mListView.setAdapter(mAdapter);
            mListView.onRestoreInstanceState(mListState);
            mRadioGroup.restoreHierarchyState(mRadioState);
            mProgressBar.setVisibility(View.GONE);
        }

        mBinder.setNoDataView((NoDataView) view.findViewById(R.id.no_data));

        mListView.setOnItemClickListener((adapterView, view1, position, id) -> {
            if (!(adapterView.getAdapter() instanceof ListViewAdapter)
                    || position >= adapterView.getAdapter().getCount()
                    || !(((ListViewAdapter) adapterView.getAdapter()).getItem(position) instanceof ListElement)) {
                TbaLogger.d("Can't open stat item");
                return;
            }
            String teamKey = ((ListElement) ((ListViewAdapter) adapterView.getAdapter()).getItem(position)).getKey();
            if (TeamHelper.validateTeamKey(teamKey) ^ TeamHelper.validateMultiTeamKey(teamKey)) {
                teamKey = TeamHelper.baseTeamKey(teamKey);
                startActivity(TeamAtEventActivity.newInstance(getActivity(), mEventKey, teamKey));
            }
        });

        return view;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();

        if (id == R.id.action_sort_by) {
            mStatsDialog.show();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(SORT, mSelectedStatSort);
    }

    @Override
    public void onPause() {
        // Save the data if moving away from fragment.
        super.onPause();
        if (mListView != null) {
            mAdapter = (EventStatsFragmentAdapter) mListView.getAdapter();
            mListState = mListView.onSaveInstanceState();
        }
        if (mRadioGroup != null) {
            mRadioState = new SparseArray<>();
            mRadioGroup.saveHierarchyState(mRadioState);
        }
    }

    @Override
    protected void inject() {
        mComponent.inject(this);
    }

    @Override
    protected Observable<StatsListSubscriber.Model> getObservable(String tbaCacheHeader) {
        return Observable.zip(
                mDatafeed.fetchEventStats(mEventKey, tbaCacheHeader),
                mDatafeed.fetchEventInsights(mEventKey, tbaCacheHeader),
                new TwoJsonCombiner()
        );
    }

    @Override
    protected String getRefreshTag() {
        return String.format("eventStats_%1$s", mEventKey);
    }

    @Override public NoDataViewParams getNoDataParams() {
        return new NoDataViewParams(R.drawable.ic_poll_black_48dp, R.string.no_stats_data);
    }

    private String getSortTypeFromPosition(int position) {
        if (mItems[position].equals(getString(R.string.dialog_stats_sort_opr))) {
            return "opr";
        } else if (mItems[position].equals(getString(R.string.dialog_stats_sort_dpr))) {
            return "dpr";
        } else if (mItems[position].equals(getString(R.string.dialog_stats_sort_ccwm))) {
            return "ccwm";
        } else if (mItems[position].equals(getString(R.string.dialog_stats_sort_team))) {
            return "team";
        }
        return "";
    }

}