package org.getlantern.firetweet.activity.support;

import android.content.Intent;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.content.Loader;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import org.getlantern.firetweet.R;
import org.getlantern.firetweet.adapter.ResolveInfoListAdapter;
import org.getlantern.firetweet.loader.support.IntentActivitiesLoader;

import java.util.List;

public class ActivityPickerActivity extends BaseSupportDialogActivity implements LoaderCallbacks<List<ResolveInfo>>,
        OnItemClickListener {

    private ResolveInfoListAdapter mAdapter;

    private ListView mListView;

    @Override
    public void onContentChanged() {
        super.onContentChanged();
        mListView = (ListView) findViewById(android.R.id.list);
    }

    @Override
    public Loader<List<ResolveInfo>> onCreateLoader(final int id, final Bundle args) {
        final Intent intent = getIntent();
        final Intent extraIntent = intent.getParcelableExtra(EXTRA_INTENT);

        final String[] blacklist = intent.getStringArrayExtra(EXTRA_BLACKLIST);
        return new IntentActivitiesLoader(this, extraIntent, blacklist, 0);
    }

    @Override
    public void onItemClick(final AdapterView<?> parent, final View view, final int position, final long id) {
        final Intent intent = getIntent(), data = new Intent();
        data.putExtra(EXTRA_DATA, mAdapter.getItem(position));
        data.putExtra(EXTRA_INTENT, intent.getParcelableExtra(EXTRA_INTENT));
        setResult(RESULT_OK, data);
        finish();
    }

    @Override
    public void onLoaderReset(final Loader<List<ResolveInfo>> loader) {
        mAdapter.clear();
    }

    @Override
    public void onLoadFinished(final Loader<List<ResolveInfo>> loader, final List<ResolveInfo> data) {
        mAdapter.clear();
        if (data != null) {
            mAdapter.addAll(data);
        }
    }

    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_activity_picker);
        mAdapter = new ResolveInfoListAdapter(this);
        mListView.setAdapter(mAdapter);
        mListView.setOnItemClickListener(this);
        getSupportLoaderManager().initLoader(0, null, this);
    }

}