Add automation scripts like WA bot

Author: cedrickchee

javascript/automation/whatsapp_bot.js

@@ -0,0 +1,45 @@
+const storeKey = 'WATracker';
+
+// Select the node that will be observed for mutations
+const targetNode = document.querySelector('#main header');
+
+// Options for the observer (which mutations to observe)
+const config = {
+  attributes: true,
+  childList: true,
+  subtree: true
+};
+
+// Callback function to execute when mutations are observed
+const callback = function(mutationsList, observer) {
+  console.log('user status changed');
+
+  let name = document.querySelector('#main header span[dir="auto"]');
+  let onlineStatus = document.querySelector('span[title="online"]');
+  let username = name.innerText;
+  let date = new Date().toISOString();
+  let status = onlineStatus ? 'online' : 'offline';
+
+  let messageData = JSON.parse(localStorage.getItem(storeKey)) || {};
+
+  const found = messageData[username];
+
+  if (found) {
+    messageData[username].push({ date, status });
+  } else {
+    messageData[username] = [{ date, status }];
+  }
+
+  let json = JSON.stringify(messageData);
+
+  localStorage.setItem(storeKey, json);
+};
+
+// Create an observer instance linked to the callback function
+const observer = new MutationObserver(callback);
+
+// Start observing the target node for configured mutations
+observer.observe(targetNode, config);
+
+// Later, you can stop observing
+// observer.disconnect();