/*
 * Copyright (C) 2016 Simon Vig Therkildsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.simonvt.cathode.ui.suggestions.movies;

import android.content.Context;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import net.simonvt.cathode.R;
import net.simonvt.cathode.ui.fragment.BaseFragment;
import net.simonvt.cathode.util.ViewPagerUtils;

public class MovieSuggestionsPagerAdapter extends FragmentPagerAdapter {

  private Context context;

  private MovieRecommendationsFragment recommendationsFragment;
  private TrendingMoviesFragment trendingFragment;
  private AnticipatedMoviesFragment anticipatedFragment;

  public MovieSuggestionsPagerAdapter(Context context, FragmentManager fm) {
    super(fm);
    this.context = context;
    recommendationsFragment = new MovieRecommendationsFragment();
    trendingFragment = new TrendingMoviesFragment();
    anticipatedFragment = new AnticipatedMoviesFragment();

    recommendationsFragment =
        (MovieRecommendationsFragment) fm.findFragmentByTag(makeFragmentName(0));
    if (recommendationsFragment == null) {
      recommendationsFragment = new MovieRecommendationsFragment();
    }

    trendingFragment = (TrendingMoviesFragment) fm.findFragmentByTag(makeFragmentName(1));
    if (trendingFragment == null) {
      trendingFragment = new TrendingMoviesFragment();
    }

    anticipatedFragment = (AnticipatedMoviesFragment) fm.findFragmentByTag(makeFragmentName(2));
    if (anticipatedFragment == null) {
      anticipatedFragment = new AnticipatedMoviesFragment();
    }
  }

  private static String makeFragmentName(long id) {
    return ViewPagerUtils.makeFragmentName(R.id.pager, id);
  }

  @Override public BaseFragment getItem(int position) {
    if (position == 0) {
      return recommendationsFragment;
    } else if (position == 1) {
      return trendingFragment;
    } else {
      return anticipatedFragment;
    }
  }

  @Override public int getCount() {
    return 3;
  }

  @Override public CharSequence getPageTitle(int position) {
    if (position == 0) {
      return context.getString(R.string.title_recommended);
    } else if (position == 1) {
      return context.getString(R.string.title_trending);
    } else {
      return context.getString(R.string.title_anticipated);
    }
  }
}