Create engine.js

Webllm/engine.js

@@ -0,0 +1,19 @@
+import { Tokenizer } from './tokenizer.js';
+import { loadModel, generateText } from './model.js'; // Create this next if not present
+
+let tokenizer, model;
+
+export default async function initWebLLM(config) {
+  console.log("Initializing WebLLM...");
+
+  tokenizer = await Tokenizer.load(config.tokenizerUrl);
+  model = await loadModel(config.modelUrl);
+
+  return {
+    async chat(prompt) {
+      const inputIds = tokenizer.encode(prompt);
+      const outputIds = await generateText(model, inputIds);
+      return tokenizer.decode(outputIds);
+    }
+  };
+}