const readyCallback = function()

in videojs-integration/script.js [41:93]
38 lines of code
3 McCabe index (conditional complexity)

  const readyCallback = function () {
      // This executes after video.js is initialized and ready
      window.videoJSPlayer = videoJSPlayer;

      // Get reference to Amazon IVS player
      const ivsPlayer = videoJSPlayer.getIVSPlayer();

      // Show the "big play" button when the stream is paused
      const videoContainerEl = document.querySelector("#amazon-ivs-videojs");
      videoContainerEl.addEventListener("click", () => {
          if (videoJSPlayer.paused()) {
              videoContainerEl.classList.remove("vjs-has-started");
          } else {
              videoContainerEl.classList.add("vjs-has-started");
          }
      });

      // Logs low latency setting and latency value 5s after playback starts
      const PlayerState = videoJSPlayer.getIVSEvents().PlayerState;
      ivsPlayer.addEventListener(PlayerState.PLAYING, () => {
          console.log("Player State - PLAYING");
          setTimeout(() => {
              console.log(
                  `This stream is ${
                      ivsPlayer.isLiveLowLatency() ? "" : "not "
                  }playing in ultra low latency mode`
              );
              console.log(`Stream Latency: ${ivsPlayer.getLiveLatency()}s`);
          }, 5000);
      });

      // Log errors
      const PlayerEventType = videoJSPlayer.getIVSEvents().PlayerEventType;
      ivsPlayer.addEventListener(PlayerEventType.ERROR, (type, source) => {
          console.warn("Player Event - ERROR: ", type, source);
      });

      // Log and display timed metadata
      ivsPlayer.addEventListener(PlayerEventType.TEXT_METADATA_CUE, (cue) => {
          const metadataText = cue.text;
          const position = ivsPlayer.getPosition().toFixed(2);
          console.log(
              `Player Event - TEXT_METADATA_CUE: "${metadataText}". Observed ${position}s after playback started.`
          );
      });

      // Enables manual quality selection plugin
      videoJSPlayer.enableIVSQualityPlugin();

      // Set volume and play default stream
      videoJSPlayer.volume(0.5);
      videoJSPlayer.src(playbackUrl);
  };