"""
T2 tool node
"""

import asyncio
from typing import Any, Dict, List
from src.base import BaseToolNode, NodeExecutionError

class T2ToolNode(BaseToolNode):
    """
    T2 tool node implementation
    
    This node executes specific tool actions for the t_2 functionality.
    Customize the run() method to implement your specific tool logic.
    """
    
    def __init__(self, config):
        super().__init__(config, "t_2")
    
    async def run(self, input_data: Any) -> Any:
        """
        Main execution logic for the t_2 tool node with error recovery.
        
        Args:
            input_data: Input data from previous stage or initial input
            
        Returns:
            Processed data for next stage
            
        Raises:
            NodeExecutionError: If all recovery attempts fail
        """
        max_retries = 3
        retry_delay = 1.0
        
        for attempt in range(max_retries):
            try:
                # Validate input
                if not self.validate_input(input_data):
                    raise ValueError(f"Invalid input data for {self.node_name}")
                
                # Execute tool logic (no timeout for tools)
                result = await self._execute_t_2_logic(input_data)
                
                # Validate output
                if not self.validate_output(result):
                    raise ValueError(f"Invalid output from {self.node_name}")
                
                return result
                
            except (ValueError, TypeError) as e:
                # Validation errors - don't retry
                print(f"❌ Validation error in {self.node_name}: {e}")
                raise NodeExecutionError(f"Validation failed in {self.node_name}: {e}")
                
            except Exception as e:
                print(f"⚠️ Error in {self.node_name} (attempt {attempt + 1}/{max_retries}): {e}")
                
                if attempt == max_retries - 1:
                    error_msg = f"Failed to execute {self.node_name} after {max_retries} attempts: {e}"
                    print(f"❌ {error_msg}")
                    raise NodeExecutionError(error_msg)
                
                # Exponential backoff
                await asyncio.sleep(retry_delay * (2 ** attempt))
        
        raise NodeExecutionError(f"Unexpected error in {self.node_name} execution")
    
    async def _execute_t_2_logic(self, data: Any) -> Any:
        """
        Execute the specific t_2 tool logic
        
        Customize this method with your specific tool implementation:
        - HTTP requests for API calls
        - File operations for data processing  
        - Web scraping for information gathering
        - Calculator operations for computations
        - Database queries for data retrieval
        """
        # TODO: Replace this placeholder with your actual tool logic
        
        # Placeholder response - replace with actual implementation
        return {
            "node": self.node_name,
            "processed_data": data,
            "message": f"t_2 tool executed successfully"
        }