'''
Copyright 2024 Infosys Ltd.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies 
or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE 
AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''

from __future__ import annotations
# import logging
from typing import Iterator, Dict, Optional
import itertools

from llm_explain.config.logger import CustomLogger

logging = CustomLogger()

class Thought:
    """
    Represents an LLM thought with its state, constructed by the parser, and various flags.
    """

    _ids: Iterator[int] = itertools.count(0)

    def __init__(self, state: Optional[Dict] = None) -> None:
        """
        Initializes a new Thought instance with a state and various default flags.

        :param state: The state of the thought. Defaults to None.
        :type state: Optional[Dict]
        """
        self.logger = CustomLogger()
        self.id: int = next(Thought._ids)
        self.state: Dict = state
        self._score: float = 0.0
        self._valid: bool = False
        self._solved: bool = False
        self.scored: bool = False
        self.validated: bool = False
        self.compared_to_ground_truth: bool = False

    @staticmethod
    def from_thought(thought: Thought) -> Thought:
        """
        Creates a new thought from an existing one.

        :param thought: An instance of a Thought to clone.
        :return: A new Thought instance with properties copied from the input thought.
        """
        new_thought = Thought(thought.state)
        new_thought.score = thought.score
        new_thought.valid = thought.valid
        new_thought.solved = thought.solved
        new_thought.scored = thought.scored
        new_thought.validated = thought.validated
        new_thought.compared_to_ground_truth = thought.compared_to_ground_truth
        return new_thought

    @property
    def valid(self) -> bool:
        """
        Returns the validity of the thought.

        :return: The validity of the thought.
        :rtype: bool
        """
        return self._valid

    @valid.setter
    def valid(self, valid: bool) -> None:
        """
        Sets the validity of the thought and the validated flag.

        :param valid: The validity of the thought.
        :type valid: bool
        """
        self.validated = True
        self._valid = valid

    @property
    def score(self) -> float:
        """
        Returns the score of the thought.

        :return: The score of the thought.
        :rtype: float
        """
        return self._score

    @score.setter
    def score(self, new_score: float) -> None:
        """
        Sets the score of the thought and the scored flag.

        :param new_score: The score of the thought.
        :type new_score: float
        """
        self.scored = True
        self._score = new_score

    @property
    def solved(self) -> bool:
        """
        Returns the solved flag of the thought.

        :return: The solved flag of the thought.
        :rtype: bool
        """
        return self._solved

    @solved.setter
    def solved(self, solved: bool) -> None:
        """
        Sets the solved flag of the thought and the compared_to_ground_truth flag.

        :param solved: Whether the thought contains a solution to the problem.
        :type solved: bool
        """
        self.compared_to_ground_truth = True
        self._solved = solved