Update tools/final_answer.py

tools/final_answer.py

@@ -1,14 +1,66 @@
 from typing import Any, Optional
 from smolagents.tools import Tool
+from PIL import Image # Add this import
+import os             # Add this import
+import datetime       # Add this import
 
 class FinalAnswerTool(Tool):
     name = "final_answer"
-    description = "Provides a final answer to the given problem."
-    inputs = {'answer': {'type': 'any', 'description': 'The final answer to the problem'}}
-    output_type = "any"
+    description = "Provides a final answer to the given problem. Can include a textual response and/or a path to a generated image."
+    
+    # IMPORTANT: Update the inputs to explicitly allow 'text' and 'image_path'
+    inputs = {
+        'text': {'type': 'str', 'description': 'The final textual answer to the problem'},
+        'image_path': {'type': 'str', 'description': 'Optional path to a generated image file (e.g., .webp, .png, .jpg) to be displayed.'}
+    }
+    
+    output_type = "str" # The output will be a Markdown string
 
-    def forward(self, answer: Any) -> Any:
-        return answer
+    def forward(self, text: Optional[str] = None, image_path: Optional[str] = None) -> str:
+        """
+        Processes the final answer, potentially embedding an image from a given path.
+        """
+        output_content = []
+
+        if image_path and os.path.exists(image_path):
+            # Gradio should typically handle .webp directly, but converting to PNG
+            # is a robust fallback for broader compatibility or specific display quirks.
+            image_display_path = image_path
+            if image_path.lower().endswith(".webp"):
+                try:
+                    img = Image.open(image_path)
+                    # Create a temporary filename for the PNG
+                    # Use a more robust temporary path strategy
+                    temp_dir = os.path.dirname(image_path) if os.path.dirname(image_path) else "/tmp"
+                    os.makedirs(temp_dir, exist_ok=True) # Ensure temp_dir exists
+                    
+                    base_name = os.path.basename(image_path)
+                    name_without_ext = os.path.splitext(base_name)[0]
+                    # Add microsecond precision to avoid collisions if multiple images are generated rapidly
+                    temp_png_path = os.path.join(
+                        temp_dir,
+                        f"{name_without_ext}_{datetime.datetime.now().strftime('%Y%m%d%H%M%S%f')}.png"
+                    )
+                    
+                    img.save(temp_png_path, "PNG")
+                    image_display_path = temp_png_path
+                    print(f"[DEBUG] Converted {image_path} to {temp_png_path} for display.")
+                except Exception as e:
+                    print(f"[ERROR] Failed to convert image {image_path} to PNG: {e}. Attempting to use original path.")
+                    # Fallback to original path if conversion fails
+        
+            # Embed the image using Markdown syntax, which Gradio will render
+            output_content.append(f"![Generated Image]({image_display_path})")
+
+        if text:
+            output_content.append(text)
+        
+        if not output_content:
+            return "No final answer provided."
+
+        return "\n\n".join(output_content)
 
     def __init__(self, *args, **kwargs):
-        self.is_initialized = False
+        # Important: Call the superclass __init__ to properly initialize the Tool
+        super().__init__(*args, **kwargs)
+        self.is_initialized = False # You can keep this if it's used elsewhere