/*
 * Copyright (C) 2016 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.android.dialer.callcomposer;

import android.animation.Animator;
import android.animation.Animator.AnimatorListener;
import android.animation.AnimatorSet;
import android.animation.ArgbEvaluator;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.content.ContextCompat;
import android.support.v4.content.FileProvider;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.util.Base64;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLayoutChangeListener;
import android.view.ViewAnimationUtils;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.QuickContactBadge;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toolbar;
import com.android.contacts.common.ContactPhotoManager;
import com.android.contacts.common.util.UriUtils;
import com.android.dialer.callcomposer.CallComposerFragment.CallComposerListener;
import com.android.dialer.callcomposer.nano.CallComposerContact;
import com.android.dialer.callcomposer.util.CopyAndResizeImageTask;
import com.android.dialer.callcomposer.util.CopyAndResizeImageTask.Callback;
import com.android.dialer.callintent.CallIntentBuilder;
import com.android.dialer.callintent.nano.CallInitiationType;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.common.UiUtil;
import com.android.dialer.compat.CompatUtils;
import com.android.dialer.constants.Constants;
import com.android.dialer.enrichedcall.EnrichedCallComponent;
import com.android.dialer.enrichedcall.EnrichedCallManager;
import com.android.dialer.enrichedcall.EnrichedCallManager.State;
import com.android.dialer.enrichedcall.Session;
import com.android.dialer.enrichedcall.extensions.StateExtension;
import com.android.dialer.logging.Logger;
import com.android.dialer.logging.nano.DialerImpression;
import com.android.dialer.multimedia.MultimediaData;
import com.android.dialer.protos.ProtoParsers;
import com.android.dialer.telecom.TelecomUtil;
import com.android.dialer.util.ViewUtil;
import com.google.protobuf.nano.InvalidProtocolBufferNanoException;
import java.io.File;

/**
 * Implements an activity which prompts for a call with additional media for an outgoing call. The
 * activity includes a pop up with:
 *
 * <ul>
 *   <li>Contact galleryIcon
 *   <li>Name
 *   <li>Number
 *   <li>Media options to attach a gallery image, camera image or a message
 * </ul>
 */
public class CallComposerActivity extends AppCompatActivity
    implements OnClickListener,
        OnPageChangeListener,
        CallComposerListener,
        OnLayoutChangeListener,
        EnrichedCallManager.StateChangedListener {

  public static final String KEY_CONTACT_NAME = "contact_name";

  private static final int ENTRANCE_ANIMATION_DURATION_MILLIS = 500;
  private static final int EXIT_ANIMATION_DURATION_MILLIS = 500;

  private static final String ARG_CALL_COMPOSER_CONTACT = "CALL_COMPOSER_CONTACT";

  private static final String ENTRANCE_ANIMATION_KEY = "entrance_animation_key";
  private static final String CURRENT_INDEX_KEY = "current_index_key";
  private static final String VIEW_PAGER_STATE_KEY = "view_pager_state_key";
  private static final String SESSION_ID_KEY = "session_id_key";

  private CallComposerContact contact;
  private Long sessionId = Session.NO_SESSION_ID;

  private TextView nameView;
  private TextView numberView;
  private QuickContactBadge contactPhoto;
  private RelativeLayout contactContainer;
  private Toolbar toolbar;
  private View sendAndCall;
  private TextView sendAndCallText;

  private ImageView cameraIcon;
  private ImageView galleryIcon;
  private ImageView messageIcon;
  private ViewPager pager;
  private CallComposerPagerAdapter adapter;

  private FrameLayout background;
  private LinearLayout windowContainer;

  private FastOutSlowInInterpolator interpolator;
  private boolean shouldAnimateEntrance = true;
  private boolean inFullscreenMode;
  private boolean isSendAndCallHidingOrHidden = true;
  private boolean layoutChanged;
  private int currentIndex;

  public static Intent newIntent(Context context, CallComposerContact contact) {
    Intent intent = new Intent(context, CallComposerActivity.class);
    ProtoParsers.put(intent, ARG_CALL_COMPOSER_CONTACT, contact);
    return intent;
  }

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

    nameView = (TextView) findViewById(R.id.contact_name);
    numberView = (TextView) findViewById(R.id.phone_number);
    contactPhoto = (QuickContactBadge) findViewById(R.id.contact_photo);
    cameraIcon = (ImageView) findViewById(R.id.call_composer_camera);
    galleryIcon = (ImageView) findViewById(R.id.call_composer_photo);
    messageIcon = (ImageView) findViewById(R.id.call_composer_message);
    contactContainer = (RelativeLayout) findViewById(R.id.contact_bar);
    pager = (ViewPager) findViewById(R.id.call_composer_view_pager);
    background = (FrameLayout) findViewById(R.id.background);
    windowContainer = (LinearLayout) findViewById(R.id.call_composer_container);
    toolbar = (Toolbar) findViewById(R.id.toolbar);
    sendAndCall = findViewById(R.id.send_and_call_button);
    sendAndCallText = (TextView) findViewById(R.id.send_and_call_text);

    interpolator = new FastOutSlowInInterpolator();
    adapter =
        new CallComposerPagerAdapter(
            getSupportFragmentManager(),
            getResources().getInteger(R.integer.call_composer_message_limit));
    pager.setAdapter(adapter);
    pager.addOnPageChangeListener(this);

    setActionBar(toolbar);
    toolbar.setNavigationIcon(R.drawable.quantum_ic_close_white_24);
    toolbar.setNavigationOnClickListener(v -> finish());

    background.addOnLayoutChangeListener(this);
    cameraIcon.setOnClickListener(this);
    galleryIcon.setOnClickListener(this);
    messageIcon.setOnClickListener(this);
    sendAndCall.setOnClickListener(this);

    onHandleIntent(getIntent());

    if (savedInstanceState != null) {
      shouldAnimateEntrance = savedInstanceState.getBoolean(ENTRANCE_ANIMATION_KEY);
      pager.onRestoreInstanceState(savedInstanceState.getParcelable(VIEW_PAGER_STATE_KEY));
      currentIndex = savedInstanceState.getInt(CURRENT_INDEX_KEY);
      sessionId = savedInstanceState.getLong(SESSION_ID_KEY, Session.NO_SESSION_ID);
      onPageSelected(currentIndex);
    }

    // Since we can't animate the views until they are ready to be drawn, we use this listener to
    // track that and animate the call compose UI as soon as it's ready.
    ViewUtil.doOnPreDraw(
        windowContainer,
        false,
        () -> {
          showFullscreen(inFullscreenMode);
          runEntranceAnimation();
        });

    setMediaIconSelected(0);
  }

  @Override
  protected void onResume() {
    super.onResume();
    getEnrichedCallManager().registerStateChangedListener(this);
    if (sessionId == Session.NO_SESSION_ID) {
      LogUtil.i("CallComposerActivity.onResume", "creating new session");
      sessionId = getEnrichedCallManager().startCallComposerSession(contact.number);
    } else if (getEnrichedCallManager().getSession(sessionId) == null) {
      LogUtil.i(
          "CallComposerActivity.onResume", "session closed while activity paused, creating new");
      sessionId = getEnrichedCallManager().startCallComposerSession(contact.number);
    } else {
      LogUtil.i("CallComposerActivity.onResume", "session still open, using old");
    }
    if (sessionId == Session.NO_SESSION_ID) {
      LogUtil.w("CallComposerActivity.onResume", "failed to create call composer session");
      setFailedResultAndFinish();
    }
    refreshUiForCallComposerState();
  }

  @Override
  protected void onPause() {
    super.onPause();
    getEnrichedCallManager().unregisterStateChangedListener(this);
  }

  @Override
  public void onEnrichedCallStateChanged() {
    refreshUiForCallComposerState();
  }

  private void refreshUiForCallComposerState() {
    Session session = getEnrichedCallManager().getSession(sessionId);
    if (session == null) {
      return;
    }

    @State int state = session.getState();
    LogUtil.i(
        "CallComposerActivity.refreshUiForCallComposerState",
        "state: %s",
        StateExtension.toString(state));

    if (state == EnrichedCallManager.STATE_START_FAILED
        || state == EnrichedCallManager.STATE_CLOSED) {
      setFailedResultAndFinish();
    }
  }

  @Override
  protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    onHandleIntent(intent);
  }

  @Override
  public void onClick(View view) {
    LogUtil.enterBlock("CallComposerActivity.onClick");
    if (view == cameraIcon) {
      pager.setCurrentItem(CallComposerPagerAdapter.INDEX_CAMERA, true /* animate */);
    } else if (view == galleryIcon) {
      pager.setCurrentItem(CallComposerPagerAdapter.INDEX_GALLERY, true /* animate */);
    } else if (view == messageIcon) {
      pager.setCurrentItem(CallComposerPagerAdapter.INDEX_MESSAGE, true /* animate */);
    } else if (view == sendAndCall) {
      if (!sessionReady()) {
        LogUtil.i(
            "CallComposerActivity.onClick", "sendAndCall pressed, but the session isn't ready");
        Logger.get(this)
            .logImpression(
                DialerImpression.Type
                    .CALL_COMPOSER_ACTIVITY_SEND_AND_CALL_PRESSED_WHEN_SESSION_NOT_READY);
        return;
      }
      sendAndCall.setEnabled(false);
      CallComposerFragment fragment =
          (CallComposerFragment) adapter.instantiateItem(pager, currentIndex);
      MultimediaData.Builder builder = MultimediaData.builder();

      if (fragment instanceof MessageComposerFragment) {
        MessageComposerFragment messageComposerFragment = (MessageComposerFragment) fragment;
        builder.setText(messageComposerFragment.getMessage());
        placeRCSCall(builder);
      }
      if (fragment instanceof GalleryComposerFragment) {
        GalleryComposerFragment galleryComposerFragment = (GalleryComposerFragment) fragment;
        // If the current data is not a copy, make one.
        if (!galleryComposerFragment.selectedDataIsCopy()) {
          new CopyAndResizeImageTask(
                  CallComposerActivity.this,
                  galleryComposerFragment.getGalleryData().getFileUri(),
                  new Callback() {
                    @Override
                    public void onCopySuccessful(File file, String mimeType) {
                      Uri shareableUri =
                          FileProvider.getUriForFile(
                              CallComposerActivity.this,
                              Constants.get().getFileProviderAuthority(),
                              file);

                      builder.setImage(grantUriPermission(shareableUri), mimeType);
                      placeRCSCall(builder);
                    }

                    @Override
                    public void onCopyFailed(Throwable throwable) {
                      // TODO(b/33753902)
                      LogUtil.e("CallComposerActivity.onCopyFailed", "copy Failed", throwable);
                    }
                  })
              .executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
        } else {
          Uri shareableUri =
              FileProvider.getUriForFile(
                  this,
                  Constants.get().getFileProviderAuthority(),
                  new File(galleryComposerFragment.getGalleryData().getFilePath()));

          builder.setImage(
              grantUriPermission(shareableUri),
              galleryComposerFragment.getGalleryData().getMimeType());

          placeRCSCall(builder);
        }
      }
      if (fragment instanceof CameraComposerFragment) {
        CameraComposerFragment cameraComposerFragment = (CameraComposerFragment) fragment;
        cameraComposerFragment.getCameraUriWhenReady(
            uri -> {
              builder.setImage(grantUriPermission(uri), cameraComposerFragment.getMimeType());
              placeRCSCall(builder);
            });
      }
    } else {
      Assert.fail();
    }
  }

  private boolean sessionReady() {
    Session session = getEnrichedCallManager().getSession(sessionId);
    if (session == null) {
      return false;
    }

    return session.getState() == EnrichedCallManager.STATE_STARTED;
  }

  private void placeRCSCall(MultimediaData.Builder builder) {
    LogUtil.i("CallComposerActivity.placeRCSCall", "placing enriched call");
    Logger.get(this).logImpression(DialerImpression.Type.CALL_COMPOSER_ACTIVITY_PLACE_RCS_CALL);
    getEnrichedCallManager().sendCallComposerData(sessionId, builder.build());
    TelecomUtil.placeCall(
        this, new CallIntentBuilder(contact.number, CallInitiationType.Type.CALL_COMPOSER).build());
    setResult(RESULT_OK);
    finish();
  }

  /** Give permission to Messenger to view our image for RCS purposes. */
  private Uri grantUriPermission(Uri uri) {
    // TODO: Move this to the enriched call manager.
    grantUriPermission(
        "com.google.android.apps.messaging", uri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
    return uri;
  }

  /** Animates {@code contactContainer} to align with content inside viewpager. */
  @Override
  public void onPageSelected(int position) {
    if (position == CallComposerPagerAdapter.INDEX_MESSAGE) {
      sendAndCallText.setText(R.string.send_and_call);
    } else {
      sendAndCallText.setText(R.string.share_and_call);
    }
    if (currentIndex == CallComposerPagerAdapter.INDEX_MESSAGE) {
      UiUtil.hideKeyboardFrom(this, windowContainer);
    } else if (position == CallComposerPagerAdapter.INDEX_MESSAGE
        && inFullscreenMode
        && !isLandscapeLayout()) {
      UiUtil.openKeyboardFrom(this, windowContainer);
    }
    currentIndex = position;
    CallComposerFragment fragment = (CallComposerFragment) adapter.instantiateItem(pager, position);
    animateSendAndCall(fragment.shouldHide());
    setMediaIconSelected(position);
  }

  @Override
  public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {}

  @Override
  public void onPageScrollStateChanged(int state) {}

  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putParcelable(VIEW_PAGER_STATE_KEY, pager.onSaveInstanceState());
    outState.putBoolean(ENTRANCE_ANIMATION_KEY, shouldAnimateEntrance);
    outState.putInt(CURRENT_INDEX_KEY, currentIndex);
    outState.putLong(SESSION_ID_KEY, sessionId);
  }

  @Override
  public void onBackPressed() {
    if (!isSendAndCallHidingOrHidden) {
      ((CallComposerFragment) adapter.instantiateItem(pager, currentIndex)).clearComposer();
    } else {
      // Unregister first to avoid receiving a callback when the session closes
      getEnrichedCallManager().unregisterStateChangedListener(this);
      getEnrichedCallManager().endCallComposerSession(sessionId);
      runExitAnimation();
    }
  }

  @Override
  public void composeCall(CallComposerFragment fragment) {
    // Since our ViewPager restores state to our fragments, it's possible that they could call
    // #composeCall, so we have to check if the calling fragment is the current fragment.
    if (adapter.instantiateItem(pager, currentIndex) != fragment) {
      return;
    }
    animateSendAndCall(fragment.shouldHide());
  }

  // To detect when the keyboard changes.
  @Override
  public void onLayoutChange(
      View view,
      int left,
      int top,
      int right,
      int bottom,
      int oldLeft,
      int oldTop,
      int oldRight,
      int oldBottom) {
    // To prevent infinite layout change loops
    if (layoutChanged) {
      layoutChanged = false;
      return;
    }

    layoutChanged = true;
    showFullscreen(contactContainer.getTop() < 0 || inFullscreenMode);
  }

  /**
   * Reads arguments from the fragment arguments and populates the necessary instance variables.
   * Copied from {@link com.android.contacts.common.dialog.CallSubjectDialog}.
   */
  private void onHandleIntent(Intent intent) {
    Bundle arguments = intent.getExtras();
    if (arguments == null) {
      throw new RuntimeException("CallComposerActivity.onHandleIntent, Arguments cannot be null.");
    }
    if (arguments.get(ARG_CALL_COMPOSER_CONTACT) instanceof String) {
      byte[] bytes = Base64.decode(arguments.getString(ARG_CALL_COMPOSER_CONTACT), Base64.DEFAULT);
      try {
        contact = CallComposerContact.parseFrom(bytes);
      } catch (InvalidProtocolBufferNanoException e) {
        Assert.fail(e.toString());
      }
    } else {
      contact =
          ProtoParsers.getFromInstanceState(
              arguments, ARG_CALL_COMPOSER_CONTACT, new CallComposerContact());
    }
    updateContactInfo();
  }

  @Override
  public boolean isLandscapeLayout() {
    return getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
  }

  /**
   * Populates the contact info fields based on the current contact information. Copied from {@link
   * com.android.contacts.common.dialog.CallSubjectDialog}.
   */
  private void updateContactInfo() {
    if (contact.contactUri != null) {
      setPhoto(
          contact.photoId,
          Uri.parse(contact.photoUri),
          Uri.parse(contact.contactUri),
          contact.nameOrNumber,
          contact.isBusiness);
    } else {
      contactPhoto.setVisibility(View.GONE);
    }
    nameView.setText(contact.nameOrNumber);
    getActionBar().setTitle(contact.nameOrNumber);
    if (!TextUtils.isEmpty(contact.numberLabel) && !TextUtils.isEmpty(contact.displayNumber)) {
      numberView.setVisibility(View.VISIBLE);
      String secondaryInfo =
          getString(
              com.android.contacts.common.R.string.call_subject_type_and_number,
              contact.numberLabel,
              contact.displayNumber);
      numberView.setText(secondaryInfo);
      toolbar.setSubtitle(secondaryInfo);
    } else {
      numberView.setVisibility(View.GONE);
      numberView.setText(null);
    }
  }

  /**
   * Sets the photo on the quick contact galleryIcon. Copied from {@link
   * com.android.contacts.common.dialog.CallSubjectDialog}.
   */
  private void setPhoto(
      long photoId, Uri photoUri, Uri contactUri, String displayName, boolean isBusiness) {
    contactPhoto.assignContactUri(contactUri);
    if (CompatUtils.isLollipopCompatible()) {
      contactPhoto.setOverlay(null);
    }

    int contactType;
    if (isBusiness) {
      contactType = ContactPhotoManager.TYPE_BUSINESS;
    } else {
      contactType = ContactPhotoManager.TYPE_DEFAULT;
    }

    String lookupKey = null;
    if (contactUri != null) {
      lookupKey = UriUtils.getLookupKeyFromUri(contactUri);
    }

    ContactPhotoManager.DefaultImageRequest request =
        new ContactPhotoManager.DefaultImageRequest(
            displayName, lookupKey, contactType, true /* isCircular */);

    if (photoId == 0 && photoUri != null) {
      contactPhoto.setImageDrawable(
          getDrawable(R.drawable.product_logo_avatar_anonymous_color_120));
    } else {
      ContactPhotoManager.getInstance(this)
          .loadThumbnail(
              contactPhoto, photoId, false /* darkTheme */, true /* isCircular */, request);
    }
  }

  /** Animates compose UI into view */
  private void runEntranceAnimation() {
    if (!shouldAnimateEntrance) {
      return;
    }
    shouldAnimateEntrance = false;

    int value = isLandscapeLayout() ? windowContainer.getWidth() : windowContainer.getHeight();
    ValueAnimator contentAnimation = ValueAnimator.ofFloat(value, 0);
    contentAnimation.setInterpolator(interpolator);
    contentAnimation.setDuration(ENTRANCE_ANIMATION_DURATION_MILLIS);
    contentAnimation.addUpdateListener(
        animation -> {
          if (isLandscapeLayout()) {
            windowContainer.setX((Float) animation.getAnimatedValue());
          } else {
            windowContainer.setY((Float) animation.getAnimatedValue());
          }
        });

    if (!isLandscapeLayout()) {
      int colorFrom = ContextCompat.getColor(this, android.R.color.transparent);
      int colorTo = ContextCompat.getColor(this, R.color.call_composer_background_color);
      ValueAnimator backgroundAnimation =
          ValueAnimator.ofObject(new ArgbEvaluator(), colorFrom, colorTo);
      backgroundAnimation.setInterpolator(interpolator);
      backgroundAnimation.setDuration(ENTRANCE_ANIMATION_DURATION_MILLIS); // milliseconds
      backgroundAnimation.addUpdateListener(
          animator -> background.setBackgroundColor((int) animator.getAnimatedValue()));

      AnimatorSet set = new AnimatorSet();
      set.play(contentAnimation).with(backgroundAnimation);
      set.start();
    } else {
      contentAnimation.start();
    }
  }

  /** Animates compose UI out of view and ends the activity. */
  private void runExitAnimation() {
    int value = isLandscapeLayout() ? windowContainer.getWidth() : windowContainer.getHeight();
    ValueAnimator contentAnimation = ValueAnimator.ofFloat(0, value);
    contentAnimation.setInterpolator(interpolator);
    contentAnimation.setDuration(EXIT_ANIMATION_DURATION_MILLIS);
    contentAnimation.addUpdateListener(
        animation -> {
          if (isLandscapeLayout()) {
            windowContainer.setX((Float) animation.getAnimatedValue());
          } else {
            windowContainer.setY((Float) animation.getAnimatedValue());
          }
          if (animation.getAnimatedFraction() > .95) {
            finish();
          }
        });

    if (!isLandscapeLayout()) {
      int colorTo = ContextCompat.getColor(this, android.R.color.transparent);
      int colorFrom = ContextCompat.getColor(this, R.color.call_composer_background_color);
      ValueAnimator backgroundAnimation =
          ValueAnimator.ofObject(new ArgbEvaluator(), colorFrom, colorTo);
      backgroundAnimation.setInterpolator(interpolator);
      backgroundAnimation.setDuration(EXIT_ANIMATION_DURATION_MILLIS);
      backgroundAnimation.addUpdateListener(
          animator -> background.setBackgroundColor((int) animator.getAnimatedValue()));

      AnimatorSet set = new AnimatorSet();
      set.play(contentAnimation).with(backgroundAnimation);
      set.start();
    } else {
      contentAnimation.start();
    }
  }

  @Override
  public void showFullscreen(boolean fullscreen) {
    inFullscreenMode = fullscreen;
    ViewGroup.LayoutParams layoutParams = pager.getLayoutParams();
    if (isLandscapeLayout()) {
      layoutParams.height = background.getHeight() - messageIcon.getHeight();
      toolbar.setVisibility(View.INVISIBLE);
      contactContainer.setVisibility(View.GONE);
    } else if (fullscreen || getResources().getBoolean(R.bool.show_toolbar)) {
      layoutParams.height = background.getHeight() - toolbar.getHeight() - messageIcon.getHeight();
      toolbar.setVisibility(View.VISIBLE);
      contactContainer.setVisibility(View.GONE);
    } else {
      layoutParams.height =
          getResources().getDimensionPixelSize(R.dimen.call_composer_view_pager_height);
      toolbar.setVisibility(View.INVISIBLE);
      contactContainer.setVisibility(View.VISIBLE);
    }
    pager.setLayoutParams(layoutParams);
  }

  @Override
  public boolean isFullscreen() {
    return inFullscreenMode;
  }

  private void animateSendAndCall(final boolean shouldHide) {
    // createCircularReveal doesn't respect animations being disabled, handle it here.
    if (ViewUtil.areAnimationsDisabled(this)) {
      isSendAndCallHidingOrHidden = shouldHide;
      sendAndCall.setVisibility(shouldHide ? View.INVISIBLE : View.VISIBLE);
      return;
    }

    // If the animation is changing directions, start it again. Else do nothing.
    if (isSendAndCallHidingOrHidden != shouldHide) {
      int centerX = sendAndCall.getWidth() / 2;
      int centerY = sendAndCall.getHeight() / 2;
      int startRadius = shouldHide ? centerX : 0;
      int endRadius = shouldHide ? 0 : centerX;

      // When the device rotates and state is restored, the send and call button may not be attached
      // yet and this causes a crash when we attempt to to reveal it. To prevent this, we wait until
      // {@code sendAndCall} is ready, then animate and reveal it.
      ViewUtil.doOnPreDraw(
          sendAndCall,
          true,
          () -> {
            Animator animator =
                ViewAnimationUtils.createCircularReveal(
                    sendAndCall, centerX, centerY, startRadius, endRadius);
            animator.addListener(
                new AnimatorListener() {
                  @Override
                  public void onAnimationStart(Animator animation) {
                    isSendAndCallHidingOrHidden = shouldHide;
                    sendAndCall.setVisibility(View.VISIBLE);
                  }

                  @Override
                  public void onAnimationEnd(Animator animation) {
                    if (isSendAndCallHidingOrHidden) {
                      sendAndCall.setVisibility(View.INVISIBLE);
                    }
                  }

                  @Override
                  public void onAnimationCancel(Animator animation) {}

                  @Override
                  public void onAnimationRepeat(Animator animation) {}
                });
            animator.start();
          });
    }
  }

  private void setMediaIconSelected(int position) {
    float alpha = 0.54f;
    cameraIcon.setAlpha(position == CallComposerPagerAdapter.INDEX_CAMERA ? 1 : alpha);
    galleryIcon.setAlpha(position == CallComposerPagerAdapter.INDEX_GALLERY ? 1 : alpha);
    messageIcon.setAlpha(position == CallComposerPagerAdapter.INDEX_MESSAGE ? 1 : alpha);
  }

  private void setFailedResultAndFinish() {
    setResult(RESULT_FIRST_USER, new Intent().putExtra(KEY_CONTACT_NAME, contact.nameOrNumber));
    finish();
  }

  @NonNull
  private EnrichedCallManager getEnrichedCallManager() {
    return EnrichedCallComponent.get(this).getEnrichedCallManager();
  }
}