tools/chess_tools.py

from tools.base_tool import BaseTool
from PIL import Image
import requests
from io import BytesIO

class ImageToChessBoardFENTool(BaseTool):
    name = "image_to_chess_fen"
    description = "Extracts the FEN representation of a chess board from an image."

    inputs = {
        "image_url": {
            "type": "string",
            "description": "The URL of the chessboard image.",
        }
    }
    output_type = "string"

    def forward(self, image_url: str) -> str:
        try:
            response = requests.get(image_url)
            response.raise_for_status()
            image = Image.open(BytesIO(response.content)).convert("RGB")
        except Exception as e:
            return f"Failed to load image: {e}"

        # This is a placeholder implementation.
        # You should replace it with an actual model or logic that processes the image and returns the FEN.
        fen = self._mock_fen_extraction(image)
        return fen

    def _mock_fen_extraction(self, image):
        # Replace this logic with your actual FEN model prediction if available.
        return "r1bqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"