package org.thoughtcrime.securesms.video;

import android.content.res.Resources;
import android.media.MediaFormat;
import android.util.DisplayMetrics;
import android.util.Size;

import androidx.annotation.RequiresApi;

import org.thoughtcrime.securesms.util.MediaUtil;

public final class VideoUtil {

  public static final int AUDIO_BIT_RATE     = 192_000;
  public static final int VIDEO_FRAME_RATE   = 30;
  public static final int VIDEO_BIT_RATE     = 2_000_000;
  public static final int VIDEO_LONG_WIDTH   = 1280;
  public static final int VIDEO_SHORT_WIDTH  = 720;
  public static final int VIDEO_MAX_LENGTH_S = 30;

  @RequiresApi(21)
  public static final String VIDEO_MIME_TYPE = MediaFormat.MIMETYPE_VIDEO_AVC;
  public static final String AUDIO_MIME_TYPE = "audio/mp4a-latm";

  public static final String RECORDED_VIDEO_CONTENT_TYPE = MediaUtil.VIDEO_MP4;

  private VideoUtil() { }

  @RequiresApi(21)
  public static Size getVideoRecordingSize() {
    return isPortrait(screenSize())
           ? new Size(VIDEO_SHORT_WIDTH, VIDEO_LONG_WIDTH)
           : new Size(VIDEO_LONG_WIDTH, VIDEO_SHORT_WIDTH);
  }

  @RequiresApi(21)
  private static Size screenSize() {
    DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
    return new Size(metrics.widthPixels, metrics.heightPixels);
  }

  @RequiresApi(21)
  private static boolean isPortrait(Size size) {
    return size.getWidth() < size.getHeight();
  }
}