crowd-funder-for-time-pwa/sw_scripts/safari-notifications.js

function validateBase64(s) {
    if (!(/^(?:[A-Za-z0-9+\/]{2}[A-Za-z0-9+\/]{2})*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/.test(s))) {
        throw new TypeError('invalid encoding');
    }
}

function decodeBase64(s) {
    validateBase64(s);
    var i, d = atob(s), b = new Uint8Array(d.length);
    for (i = 0; i < d.length; i++) b[i] = d.charCodeAt(i);
    return b;
};

async function getSettingById(id) {
  return new Promise((resolve, reject) => {
    let openRequest = indexedDB.open('TimeSafari');

    openRequest.onupgradeneeded = (event) => {
      // Handle database setup if necessary
      let db = event.target.result;
      if (!db.objectStoreNames.contains('settings')) {
        db.createObjectStore('settings', { keyPath: 'id' });
      }
    };

    openRequest.onsuccess = (event) => {
      let db = event.target.result;
      let transaction = db.transaction('settings', 'readonly');
      let objectStore = transaction.objectStore('settings');
      let getRequest = objectStore.get(id);

      getRequest.onsuccess = () => resolve(getRequest.result);
      getRequest.onerror = () => reject(getRequest.error);
    };

    openRequest.onerror = () => reject(openRequest.error);
  });
}

async function getNotificationCount() {
    let secret = null;
    if ('secret' in self) {
        secret = self.secret;
        const secretUint8Array = decodeBase64(secret);
        const settings = await getSettingById(1);
        const activeDid = settings['activeDid'];
    } 
    return secret;
}

self.getNotificationCount = getNotificationCount;