Update app.py

app.py

@@ -15,6 +15,34 @@ import aiohttp
 import openai
 import gradio as gr
 from tenacity import retry, stop_after_attempt, wait_exponential
+from pathlib import Path  # ✅ Fix 'Path' not defined error
+from dataclasses import dataclass  # ✅ Fix 'dataclass' not defined error
+import os
+import json
+import logging
+import asyncio
+from typing import List, Dict, Tuple, Any, Optional
+
+# ✅ Fix 'Config' self-referencing error by using a string in type hint
+@dataclass
+class Config:
+    """Application configuration settings."""
+    
+    SYSTEM_PROMPT: str = "You are an AI-powered blockchain assistant."
+    OPENAI_MODEL: str = "gpt-4o-mini"
+    MAX_TOKENS: int = 4000
+    TEMPERATURE: float = 0.7
+
+    @classmethod
+    def load(cls, config_path: str | Path) -> "Config":  # ✅ Fix self-referencing error
+        """Load configuration from a JSON file."""
+        try:
+            with open(config_path) as f:
+                config_data = json.load(f)
+                return cls(**config_data)
+        except Exception as e:
+            logging.error(f"Error loading config: {e}")
+            return cls()
 
 # Type variables
 T = TypeVar('T')