# memory_parameterizer.py

import logging
from typing import List, Dict, Any, Optional

from aeiva.cognition.memory.memory_unit import MemoryUnit
from aeiva.cognition.memory.memory_link import MemoryLink


class MemoryParameterizerError(Exception):
    """Exception raised when an error occurs in the MemoryParameterizer."""
    pass


class MemoryParameterizer:
    """
    A class to parameterize memory units based on various parameterizing algorithms.

    Supported parameterize types:
        - 'parameterize_type_example': Placeholder for future parameterizing algorithms.
    """

    def __init__(self):
        """
        Initializes the MemoryParameterizer.

        Currently, no initialization parameters are required.
        """
        self.logger = logging.getLogger(self.__class__.__name__)
        self.logger.debug("Initialized MemoryParameterizer without default parameters.")

    def parameterize(
        self,
        memory_units: List[MemoryUnit],
        parameterize_type: str,
        **kwargs
    ) -> List[MemoryUnit]:
        """
        Parameterizes the provided memory units based on the specified parameterize type.

        Args:
            memory_units (List[MemoryUnit]): The list of memory units to be parameterized.
            parameterize_type (str): The type of parameterizing algorithm to use ('parameterize_type_example').
            **kwargs: Additional parameters required for specific parameterizers.

        Returns:
            List[MemoryUnit]: The list of memory units after parameterization.

        Raises:
            MemoryParameterizerError: If an unknown parameterize_type is provided or if parameterizing fails.
        """
        self.logger.debug(f"Parameterizing memory units using parameterize_type='{parameterize_type}' with kwargs={kwargs}")
        try:
            if parameterize_type == 'parameterize_type_example':
                # Placeholder for actual parameterizing logic
                return self.parameterize_example(memory_units, **kwargs)
            else:
                self.logger.error(f"Unknown parameterize_type: {parameterize_type}")
                raise MemoryParameterizerError(f"Unknown parameterize_type: {parameterize_type}")
        except MemoryParameterizerError:
            # Re-raise custom errors without modification
            raise
        except Exception as e:
            self.logger.error(f"Failed to parameterize memory units: {e}")
            raise MemoryParameterizerError(f"Failed to parameterize memory units: {e}")

    def parameterize_example(
        self,
        memory_units: List[MemoryUnit],
        **kwargs
    ) -> List[MemoryUnit]:
        """
        Example parameterizing method. Currently a placeholder that returns memory units unchanged.

        Args:
            memory_units (List[MemoryUnit]): The list of memory units to be parameterized.
            **kwargs: Additional parameters (currently unused).

        Returns:
            List[MemoryUnit]: The original list of memory units, unchanged.
        """
        self.logger.debug("Executing parameterize_example: No changes applied to memory units.")
        # Placeholder: No operation performed
        return memory_units

    # TODO: Implement additional parameterizing methods as needed in the future