dev: add fake chat service, for testing

Author: KernelDeimos

src/backend/src/modules/puterai/FakeChatService.js

@@ -0,0 +1,37 @@
+const BaseService = require("../../services/BaseService");
+
+class FakeChatService extends BaseService {
+    static IMPLEMENTS = {
+        ['puter-chat-completion']: {
+            async list () {
+                return ['fake'];
+            },
+            async complete ({ messages, stream, model }) {
+                return {
+                    message: {
+                        "id": "00000000-0000-0000-0000-000000000000",
+                        "type": "message",
+                        "role": "assistant",
+                        "model": "fake",
+                        "content": [
+                            {
+                                "type": "text",
+                                "text": "I am a fake AI, I don't know how to respond to anything."
+                            }
+                        ],
+                        "stop_reason": "end_turn",
+                        "stop_sequence": null,
+                        "usage": {
+                            "input_tokens": 0,
+                            "output_tokens": 1
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+module.exports = {
+    FakeChatService,
+};

src/backend/src/modules/puterai/PuterAIModule.js

@@ -53,6 +53,9 @@ class PuterAIModule extends AdvancedBase {
             const { XAIService } = require('./XAIService');
             services.registerService('xai', XAIService);
         }
+
+        const { FakeChatService } = require('./FakeChatService');
+        services.registerService('fake-chat', FakeChatService);
     }
 }