Add Save Prompt userscript

saveprompt.user.js

@@ -0,0 +1,78 @@
+// ==UserScript==
+// @name         Save Unsent AI Prompts
+// @namespace    Violent Monkey Scripts
+// @version      1.0
+// @description  Auto-save unsent AI prompts as drafts
+// @match        https://chatgpt.com/*
+// @grant        none
+// ==/UserScript==
+
+
+//This userscript will save any prompt you write into chatgpt into your local storage
+//This means if a tab gets closed and you had a very well thought out prompt that gets lost you can still dig for it
+//Prompts are saved by their unix timestamp
+
+(async function(){
+ function timeout(ms) {
+  return new Promise(resolve => setTimeout(resolve, ms));
+ }
+
+ // Continuously looks for new #prompt-textarea divs
+ async function* targetDivs() {
+  let found = new Set();
+  while(true) {
+   let divs = document.querySelectorAll('#prompt-textarea');
+   for(let div of divs) {
+    if(!found.has(div)) {
+     found.add(div);
+     yield div;
+    }
+   }
+   await timeout(500);
+  }
+ }
+ for await (let newTarget of targetDivs()) {
+  applyHandler(newTarget);
+ }
+})();
+
+function shouldSaveDraft(oldVal, newVal) {
+  // Save if text was added or replaced (not pure deletion).
+  if (newVal.length > oldVal.length) return true;
+  if (newVal.length === oldVal.length && newVal !== oldVal) return true;
+  return false;
+}
+
+function saveDraft(id, text) {
+ localStorage.setItem('draft-'+id, text);
+}
+
+function applyHandler(div) {
+ let currentId = null;
+ let oldValue = '';
+
+ // Called whenever mutations occur
+ function onDivMutate() {
+  let newValue = div.innerHTML.trim();
+  if (!newValue) {
+   // If there's nothing left, reset
+   currentId = null;
+   oldValue = '';
+   return;
+  }
+  // If we had no oldValue, this is the first time we're typing => new ID
+  if (!oldValue || !currentId) {
+   currentId = Date.now();
+  }
+  // Only save if something was added (newValue got longer than oldValue)
+  if(shouldSaveDraft(oldValue,newValue)) {
+   saveDraft(currentId,newValue);
+  }
+  // Update the known current content
+  oldValue = newValue;
+ }
+
+ // Observe changes in the div (childList & characterData changes)
+ let observer = new MutationObserver(onDivMutate);
+ observer.observe(div, {childList: true, characterData: true, subtree: true});
+}