message_handling.js

chrome.runtime.onMessage.addListener(function (message, sender, sendResponse) {
  if (message.action === 'clearTimeOut') {
    let curi = message.dat;
    // Respond to the message
    console.log('Service Worker: Received clear timer');
    //Rewrite the timer
    updateTimer()
      .then((timers) => {
        try {
          chrome.notifications.update("" + curi, { requireInteraction: false }, function () {
            chrome.notifications.clear("" + curi, function (cleared) {
              for (var i = 0; i < timers.length; i++) {
                if (parseInt(timers[i].tid) == curi) {
                  timers[i].status = "cancelled";
                }
              }
              updateTimer(timers);
            });
          });
        } catch (error) {
          console.error(error);
        }
        //Clear the timeout
        clearTimeout(message.dat);
        chrome.runtime.sendMessage({ action: 'refreshPage'});
      });

  }

  if (message.action === 'clearAllTimer') {
    console.log('Service Worker: Received clear ALL timer');
    updateTimer()
      .then((timers) => {
        timers = [];
        updateTimer(timers)
          .then((timers) => {
            chrome.runtime.sendMessage({ action: 'refreshPage'});
          })
      });
  }
});