fix: Add fs to read and write nitro engine settings

extensions/inference-nitro-extension/src/index.ts

@@ -19,6 +19,7 @@ import {
   events,
   executeOnMain,
   getUserSpace,
+  fs
 } from "@janhq/core";
 import { InferenceExtension } from "@janhq/core";
 import { requestInference } from "./helpers/sse";
@@ -31,6 +32,9 @@ import { join } from "path";
  * It also subscribes to events emitted by the @janhq/core package and handles new message requests.
  */
 export default class JanInferenceExtension implements InferenceExtension {
+  private static readonly _homeDir = 'engines'
+  private static readonly _engineMetadataFileName = 'nitro.json'
+
   controller = new AbortController();
   isCancelled = false;
   /**
@@ -45,6 +49,8 @@ export default class JanInferenceExtension implements InferenceExtension {
    * Subscribes to events emitted by the @janhq/core package.
    */
   onLoad(): void {
+    fs.mkdir(JanInferenceExtension._homeDir)
+
     events.on(EventName.OnMessageSent, (data) =>
       JanInferenceExtension.handleMessageRequest(data, this)
     );
@@ -68,10 +74,14 @@ export default class JanInferenceExtension implements InferenceExtension {
   ): Promise<void> {
     const userSpacePath = await getUserSpace();
     const modelFullPath = join(userSpacePath, "models", modelId, modelId);
-
+    let engine_settings = JSON.parse(await fs.readFile(join(JanInferenceExtension._homeDir, JanInferenceExtension._engineMetadataFileName)))
+    engine_settings = {
+      engine_settings
+      ...settings,     
+    };
     return executeOnMain(MODULE, "initModel", {
       modelFullPath,
-      settings,
+      engine_settings,
     });
   }
 

extensions/inference-nitro-extension/src/module.ts

@@ -42,12 +42,10 @@ function initModel(wrapper: any): Promise<InitModelResponse> {
 
   const settings = {
     llama_model_path: currentModelFile,
-    ctx_len: 2048,
-    ngl: 100,
-    cont_batching: false,
-    embedding: false, // Always enable embedding mode on
     ...wrapper.settings,
   };
+
+
   log.info(`Load model settings: ${JSON.stringify(settings, null, 2)}`);
 
   return (