/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 com.example.exoplayer;

import android.annotation.SuppressLint;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;

import androidx.appcompat.app.AppCompatActivity;

import com.google.android.exoplayer2.SimpleExoPlayer;
import com.google.android.exoplayer2.source.MediaSource;
import com.google.android.exoplayer2.source.dash.DashMediaSource;
import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
import com.google.android.exoplayer2.ui.PlayerView;
import com.google.android.exoplayer2.upstream.DataSource;
import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;
import com.google.android.exoplayer2.util.Util;

/**
 * A fullscreen activity to play audio or video streams.
 */
public class PlayerActivity extends AppCompatActivity {

  private PlayerView playerView;
  private SimpleExoPlayer player;
  private boolean playWhenReady = true;
  private int currentWindow = 0;
  private long playbackPosition = 0;

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

    playerView = findViewById(R.id.video_view);
  }

  @Override
  public void onStart() {
    super.onStart();
    if (Util.SDK_INT > 23) {
      initializePlayer();
    }
  }

  @Override
  public void onResume() {
    super.onResume();
    hideSystemUi();
    if ((Util.SDK_INT <= 23 || player == null)) {
      initializePlayer();
    }
  }

  @Override
  public void onPause() {
    super.onPause();
    if (Util.SDK_INT <= 23) {
      releasePlayer();
    }
  }

  @Override
  public void onStop() {
    super.onStop();
    if (Util.SDK_INT > 23) {
      releasePlayer();
    }
  }

  private void initializePlayer() {
    if (player == null) {
      DefaultTrackSelector trackSelector = new DefaultTrackSelector(this);
      trackSelector.setParameters(
              trackSelector.buildUponParameters().setMaxVideoSizeSd());
      player = new SimpleExoPlayer.Builder(this)
              .setTrackSelector(trackSelector)
              .build();
    }

    playerView.setPlayer(player);
    Uri uri = Uri.parse(getString(R.string.media_url_dash));
    MediaSource mediaSource = buildMediaSource(uri);

    player.setPlayWhenReady(playWhenReady);
    player.seekTo(currentWindow, playbackPosition);
    player.prepare(mediaSource, false, false);
  }

  private void releasePlayer() {
    if (player != null) {
      playbackPosition = player.getCurrentPosition();
      currentWindow = player.getCurrentWindowIndex();
      playWhenReady = player.getPlayWhenReady();
      player.release();
      player = null;
    }
  }

  private MediaSource buildMediaSource(Uri uri) {
    DataSource.Factory dataSourceFactory =
      new DefaultDataSourceFactory(this, "exoplayer-codelab");
    DashMediaSource.Factory mediaSourceFactory = new DashMediaSource.Factory(dataSourceFactory);
    return mediaSourceFactory.createMediaSource(uri);
  }

  @SuppressLint("InlinedApi")
  private void hideSystemUi() {
    playerView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE
        | View.SYSTEM_UI_FLAG_FULLSCREEN
        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
  }
}

@@ -689,32 +689,8 @@
 nt;%0A
-import android.net.Uri;%0A
 impo
@@ -711,16 +711,16 @@
 Bundle;%0A
+
 import a
@@ -788,16 +788,64 @@
 ivity;%0A%0A
+import com.google.android.exoplayer2.MediaItem;%0A
 import c
@@ -894,131 +894,8 @@
 er;%0A
-import com.google.android.exoplayer2.source.MediaSource;%0Aimport com.google.android.exoplayer2.source.dash.DashMediaSource;%0A
 impo
@@ -1058,98 +1058,21 @@
 r2.u
-pstream.DataSource;%0Aimport com.google.android.exoplayer2.upstream.DefaultDataSourceFactory
+til.MimeTypes
 ;%0Aim
@@ -2574,27 +2574,73 @@
     
-Uri uri = Uri.parse
+MediaItem mediaItem = new MediaItem.Builder()%0A            .setUri
 (get
@@ -2675,60 +2675,116 @@
 sh))
-;
 %0A    
-MediaSource mediaSource = buildMediaSource(uri
+        .setMimeType(MimeTypes.APPLICATION_MPD)%0A            .build();%0A    player.setMediaItem(mediaItem
 );%0A%0A
@@ -2902,33 +2902,8 @@
 are(
-mediaSource, false, false
 );%0A 
@@ -3167,16 +3167,16 @@
 = null;%0A
+
     %7D%0A  
@@ -3182,320 +3182,8 @@
  %7D%0A%0A
-  private MediaSource buildMediaSource(Uri uri) %7B%0A    DataSource.Factory dataSourceFactory =%0A      new DefaultDataSourceFactory(this, %22exoplayer-codelab%22);%0A    DashMediaSource.Factory mediaSourceFactory = new DashMediaSource.Factory(dataSourceFactory);%0A    return mediaSourceFactory.createMediaSource(uri);%0A  %7D%0A%0A
   @S

Update stage 03 to use ExoPlayer 2.12 APIs