"""URL processing tool implementation"""

from typing import Dict, Any, Optional
import logging
from .base import BaseTool
from ..types import ToolResponse

logger = logging.getLogger(__name__)

class URLProcessorTool(BaseTool):
    """Tool for processing URLs with customizable parameters"""

    def __init__(self):
        """Initialize the URL processor tool"""
        super().__init__(name="url_processor")

    @property
    def description(self) -> str:
        """Get the tool description"""
        return "Process URLs with configurable limit and format options"

    def validate_params(self, params: Dict[str, Any]) -> bool:
        """Validate the parameters

        Args:
            params: Parameters to validate

        Returns:
            True if parameters are valid
        """
        if 'url' not in params:
            logger.error("Missing required 'url' parameter")
            return False

        url = params.get('url')
        if not isinstance(url, str) or not url.strip():
            logger.error("URL must be a non-empty string")
            return False

        # Validate optional parameters
        limit = params.get('limit', 10)
        if not isinstance(limit, int) or limit <= 0:
            logger.error("Limit must be a positive integer")
            return False

        format = params.get('format', 'json')
        if not isinstance(format, str) or format not in ['json', 'text', 'html']:
            logger.error("Format must be one of: json, text, html")
            return False

        return True

    async def execute(self, url: str, limit: int = 10, format: str = "json") -> ToolResponse:
        """Execute the URL processor

        Args:
            url: The URL to process
            limit: Maximum number of items to process (default: 10)
            format: Output format (json, text, or html) (default: json)

        Returns:
            ToolResponse containing the processed results
        """
        try:
            # Mock processing for demonstration
            logger.info(f"Processing URL: {url} with limit={limit}, format={format}")
            
            # Simulate processing result
            result = {
                "url": url,
                "processed_items": limit,
                "format": format,
                "status": "success",
                "sample_data": {
                    "title": "Sample URL Content",
                    "items": [f"Item {i}" for i in range(min(limit, 3))]
                }
            }

            return ToolResponse(
                success=True,
                result=result,
                error=None
            )

        except Exception as e:
            error_msg = f"URL processing failed: {str(e)}"
            logger.error(error_msg)
            return ToolResponse(
                success=False,
                result=None,
                error=error_msg
            )
