/*
 * Copyright 2015 Synced Synapse. All rights reserved.
 *
 * 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 org.xbmc.kore.ui.sections.audio;

import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;

import org.xbmc.kore.R;
import org.xbmc.kore.ui.AbstractInfoFragment;
import org.xbmc.kore.ui.BaseActivity;
import org.xbmc.kore.ui.generic.NavigationDrawerFragment;
import org.xbmc.kore.ui.sections.remote.RemoteActivity;
import org.xbmc.kore.utils.LogUtils;
import org.xbmc.kore.utils.SharedElementTransition;
import org.xbmc.kore.utils.Utils;

/**
 * Controls the presentation of Music information (list, details)
 * All the information is presented by specific fragments
 */
public class MusicActivity extends BaseActivity
        implements ArtistListFragment.OnArtistSelectedListener,
                   AlbumListFragment.OnAlbumSelectedListener,
                   AudioGenresListFragment.OnAudioGenreSelectedListener,
                   MusicVideoListFragment.OnMusicVideoSelectedListener {
    private static final String TAG = LogUtils.makeLogTag(MusicActivity.class);

    public static final String ALBUMID = "album_id";
    public static final String ALBUMTITLE = "album_title";
    public static final String ARTISTID = "artist_id";
    public static final String ARTISTNAME = "artist_name";
    public static final String GENREID = "genre_id";
    public static final String GENRETITLE = "genre_title";
    public static final String MUSICVIDEOID = "music_video_id";
    public static final String MUSICVIDEOTITLE = "music_video_title";
    public static final String LISTFRAGMENT_TAG = "musiclist";

    private int selectedAlbumId = -1;
    private int selectedArtistId = -1;
    private int selectedGenreId = -1;
    private int selectedMusicVideoId = -1;
    private String selectedAlbumTitle = null;
    private String selectedArtistName = null;
    private String selectedGenreTitle = null;
    private String selectedMusicVideoTitle = null;

    private NavigationDrawerFragment navigationDrawerFragment;

    private SharedElementTransition sharedElementTransition = new SharedElementTransition();


    @TargetApi(21)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_generic_media);

        // Set up the drawer.
        navigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager()
                .findFragmentById(R.id.navigation_drawer);
        navigationDrawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout));

        Fragment fragment;
        if (savedInstanceState == null) {
            fragment = new MusicListFragment();

            getSupportFragmentManager()
                    .beginTransaction()
                    .add(R.id.fragment_container, fragment, LISTFRAGMENT_TAG)
                    .commit();
        } else {
            fragment = getSupportFragmentManager().findFragmentByTag(LISTFRAGMENT_TAG);

            selectedAlbumId = savedInstanceState.getInt(ALBUMID, -1);
            selectedArtistId = savedInstanceState.getInt(ARTISTID, -1);
            selectedGenreId = savedInstanceState.getInt(GENREID, -1);
            selectedMusicVideoId = savedInstanceState.getInt(MUSICVIDEOID, -1);
            selectedAlbumTitle = savedInstanceState.getString(ALBUMTITLE, null);
            selectedArtistName = savedInstanceState.getString(ARTISTNAME, null);
            selectedGenreTitle = savedInstanceState.getString(GENRETITLE, null);
            selectedMusicVideoTitle = savedInstanceState.getString(MUSICVIDEOTITLE, null);
        }

        if (Utils.isLollipopOrLater()) {
            sharedElementTransition.setupExitTransition(this, fragment);
        }

        setupActionBar(selectedAlbumTitle, selectedArtistName, selectedGenreTitle, selectedMusicVideoTitle);

//        // Setup system bars and content padding, allowing averlap with the bottom bar
//        setupSystemBarsColors();
//        UIUtils.setPaddingForSystemBars(this, findViewById(R.id.fragment_container), true, true, true);
//        UIUtils.setPaddingForSystemBars(this, findViewById(R.id.drawer_layout), true, true, true);
    }

    @Override
    protected void onSaveInstanceState (Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(ALBUMID, selectedAlbumId);
        outState.putInt(ARTISTID, selectedArtistId);
        outState.putInt(GENREID, selectedGenreId);
        outState.putInt(MUSICVIDEOID, selectedMusicVideoId);
        outState.putString(ALBUMTITLE, selectedAlbumTitle);
        outState.putString(ARTISTNAME, selectedArtistName);
        outState.putString(GENRETITLE, selectedGenreTitle);
        outState.putString(MUSICVIDEOTITLE, selectedMusicVideoTitle);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
//        if (!navigationDrawerFragment.isDrawerOpen()) {
//            getMenuInflater().inflate(R.menu.media_info, menu);
//        }
        getMenuInflater().inflate(R.menu.media_info, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.action_show_remote:
                // Starts remote
                Intent launchIntent = new Intent(this, RemoteActivity.class)
                        .addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
                startActivity(launchIntent);
                return true;
            case android.R.id.home:
                // Only respond to this if we are showing some details, which can be checked by
                // checking if some id != -1, in which case we should go back to the previous
                // fragment, which is the list.
                // The default behaviour is handled by the nav drawer (open/close)
                if (selectedAlbumId != -1) {
                    selectedAlbumId = -1;
                    selectedAlbumTitle = null;
                    setupActionBar(null, selectedArtistName, selectedGenreTitle, selectedMusicVideoTitle);
                    getSupportFragmentManager().popBackStack();
                    return true;
                } else if (selectedArtistId != -1) {
                    selectedArtistId = -1;
                    selectedArtistName = null;
                    setupActionBar(selectedAlbumTitle, null, selectedGenreTitle, selectedMusicVideoTitle);
                    getSupportFragmentManager().popBackStack();
                    return true;
                } else if (selectedGenreId != -1) {
                    selectedGenreId = -1;
                    selectedGenreTitle = null;
                    setupActionBar(selectedAlbumTitle, selectedArtistName, null, selectedMusicVideoTitle);
                    getSupportFragmentManager().popBackStack();
                    return true;
                } else if (selectedMusicVideoId != -1) {
                    selectedMusicVideoId = -1;
                    selectedMusicVideoTitle = null;
                    setupActionBar(selectedAlbumTitle, selectedArtistName, selectedGenreTitle, null);
                    getSupportFragmentManager().popBackStack();
                    return true;
                }
                break;
            default:
                break;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onBackPressed() {
        // If we are showing episode or show details in portrait, clear selected and show action bar
        if (selectedAlbumId != -1) {
            selectedAlbumId = -1;
            selectedAlbumTitle = null;
            setupActionBar(null, selectedArtistName, selectedGenreTitle, selectedMusicVideoTitle);
        } else if (selectedArtistId != -1) {
            selectedArtistId = -1;
            selectedArtistName = null;
            setupActionBar(selectedAlbumTitle, null, selectedGenreTitle, selectedMusicVideoTitle);
        } else if (selectedGenreId != -1) {
            selectedGenreId = -1;
            selectedGenreTitle = null;
            setupActionBar(selectedAlbumTitle, selectedArtistName, null, selectedMusicVideoTitle);
        } else if (selectedMusicVideoId != -1) {
            selectedMusicVideoId = -1;
            selectedMusicVideoTitle = null;
            setupActionBar(selectedAlbumTitle, selectedArtistName, selectedGenreTitle, null);
        }
        super.onBackPressed();
    }

    private boolean drawerIndicatorIsArrow = false;
    private void setupActionBar(String albumTitle, String artistName, String genreTitle,
                                String musicVideoTitle) {
        Toolbar toolbar = (Toolbar)findViewById(R.id.default_toolbar);
        setSupportActionBar(toolbar);


        ActionBar actionBar = getSupportActionBar();
        if (actionBar == null) return;
        actionBar.setDisplayHomeAsUpEnabled(true);
        if (albumTitle != null) {
            actionBar.setTitle(albumTitle);
        } else if (artistName != null) {
            actionBar.setTitle(artistName);
        } else if (genreTitle != null) {
            actionBar.setTitle(genreTitle);
        } else if (musicVideoTitle != null) {
            actionBar.setTitle(musicVideoTitle);
        } else {
            actionBar.setTitle(R.string.music);
        }

        if ((albumTitle != null) || (artistName != null) || (genreTitle != null) || (musicVideoTitle != null)) {
            if (!drawerIndicatorIsArrow) {
                navigationDrawerFragment.animateDrawerToggle(true);
                drawerIndicatorIsArrow = true;
            }
        } else {
            if (drawerIndicatorIsArrow) {
                navigationDrawerFragment.animateDrawerToggle(false);
                drawerIndicatorIsArrow = false;
            }
        }

    }

    @TargetApi(21)
    public void onArtistSelected(ArtistListFragment.ViewHolder vh) {
        selectedArtistId = vh.dataHolder.getId();
        selectedArtistName = vh.dataHolder.getTitle();

        // Replace list fragment
        final ArtistDetailsFragment artistDetailsFragment = new ArtistDetailsFragment();
        artistDetailsFragment.setDataHolder(vh.dataHolder);
        vh.dataHolder.setSquarePoster(true);

        FragmentTransaction fragTrans = getSupportFragmentManager().beginTransaction();
        // Setup animations
        if (Utils.isLollipopOrLater()) {
            vh.dataHolder.setPosterTransitionName(vh.artView.getTransitionName());
            sharedElementTransition.setupEnterTransition(this, fragTrans, artistDetailsFragment,
                                                         vh.artView);
        } else {
            fragTrans.setCustomAnimations(R.anim.fragment_details_enter, 0, R.anim.fragment_list_popenter, 0);
        }

        fragTrans.replace(R.id.fragment_container, artistDetailsFragment)
                 .addToBackStack(null)
                 .commit();

        navigationDrawerFragment.animateDrawerToggle(true);
        setupActionBar(null, selectedArtistName, null, null);
    }

    @TargetApi(21)
    public void onAlbumSelected(AlbumListFragment.ViewHolder vh) {
        selectedAlbumId = vh.dataHolder.getId();
        selectedAlbumTitle = vh.dataHolder.getTitle();

        // Replace list fragment
        final AbstractInfoFragment albumInfoFragment = new AlbumInfoFragment();
        vh.dataHolder.setSquarePoster(true);
        albumInfoFragment.setDataHolder(vh.dataHolder);
        FragmentTransaction fragTrans = getSupportFragmentManager().beginTransaction();

        // Set up transitions
        if (Utils.isLollipopOrLater()) {
            vh.dataHolder.setPosterTransitionName(vh.artView.getTransitionName());
            sharedElementTransition.setupEnterTransition(this, fragTrans, albumInfoFragment, vh.artView);
        } else {
            fragTrans.setCustomAnimations(R.anim.fragment_details_enter, 0,
                                          R.anim.fragment_list_popenter, 0);
        }

        fragTrans.replace(R.id.fragment_container, albumInfoFragment)
                 .addToBackStack(null)
                 .commit();
        setupActionBar(selectedAlbumTitle, null, null, null);
    }

    public void onAudioGenreSelected(int genreId, String genreTitle) {
        selectedGenreId = genreId;
        selectedGenreTitle = genreTitle;

        // Replace list fragment
        AlbumListFragment albumListFragment = new AlbumListFragment();
        albumListFragment.setGenre(genreId);

        getSupportFragmentManager()
                .beginTransaction()
                .setCustomAnimations(R.anim.fragment_details_enter, 0, R.anim.fragment_list_popenter, 0)
                .replace(R.id.fragment_container, albumListFragment)
                .addToBackStack(null)
                .commit();
        setupActionBar(null, null, genreTitle, null);
    }

    @TargetApi(21)
    public void onMusicVideoSelected(MusicVideoListFragment.ViewHolder vh) {
        selectedMusicVideoId = vh.dataHolder.getId();
        selectedMusicVideoTitle = vh.dataHolder.getTitle();

        // Replace list fragment
        final MusicVideoInfoFragment musicVideoInfoFragment = new MusicVideoInfoFragment();
        vh.dataHolder.setSquarePoster(true);
        musicVideoInfoFragment.setDataHolder(vh.dataHolder);

        FragmentTransaction fragTrans = getSupportFragmentManager().beginTransaction();

        // Set up transitions
        if (Utils.isLollipopOrLater()) {
            vh.dataHolder.setPosterTransitionName(vh.artView.getTransitionName());
            sharedElementTransition.setupEnterTransition(this, fragTrans, musicVideoInfoFragment, vh.artView);
        } else {
            fragTrans.setCustomAnimations(R.anim.fragment_details_enter, 0,
                                          R.anim.fragment_list_popenter, 0);
        }

        fragTrans.replace(R.id.fragment_container, musicVideoInfoFragment)
                 .addToBackStack(null)
                 .commit();
        setupActionBar(null, null, null, selectedMusicVideoTitle);
    }
}