private long tickCount;
private long recordStartedTick;
private boolean isPlaying;

private void tick(Level level, BlockPos pos, BlockState state) {
    ++this.ticksSinceLastEvent;
    if (this.isRecordPlaying()) {
        Item var5 = this.getFirstItem().getItem();
        if (var5 instanceof RecordItem recordItem) {
           if (this.shouldRecordStopPlaying(recordItem)) {
              this.stopPlaying();
           } else if (this.shouldSendJukeboxPlayingEvent()) {
              this.ticksSinceLastEvent = 0;
              world.gameEvent(GameEvent.JUKEBOX_PLAY, pos, GameEvent.Context.of(state));
              this.spawnMusicParticles(world, pos);
           }
        }
    }

    ++this.tickCount;
}

private boolean shouldRecordStopPlaying(RecordItem disc) {
    return this.tickCount >= this.recordStartedTick + (long)disc.getLengthInTicks() + 20L;
}