"""File for Category class."""

import json

from classes.score import Score, ScoreTime  # pylint: disable=import-error


class Category:
    """Stores a category's information and relative scores."""

    def __init__(self, name: str) -> None:
        """
        Default constructor for Category class. Creates empty category and populates with defaults.

        Args:
            name (str): Category's name
        """
        self._name: str = name
        self._ascending: bool = False
        self._time_record: bool = False
        self._scores_map: dict = {}

    def __str__(self) -> str:
        """
        Returns Category class as a string for printing.

        Returns:
            str: Category class as a string
        """
        return self.to_str()

    @classmethod
    def from_dict(cls, name: str, data: dict):
        """
        Creates a Category class from the passed data.

        Args:
            name (str): Category name
            data (dict): Rest of Category data in dictionary format

        Returns:
            Category: Populated Category object
        """
        category = cls(name)
        category.ascending = data["ascending"]
        category.time_record = data["time_record"]
        for user, score in data["scores"].items():
            if category.time_record:
                score_obj: ScoreTime = ScoreTime(user)
                score_obj.value = float(score)
                category.add_score(score_obj)
            else:
                score_obj: Score = Score(user)
                score_obj.value = int(score)
                category.add_score(score_obj)

        return category

    @property
    def ascending(self) -> bool:
        """
        Getter for is ascending.

        Returns:
            bool: is ascending
        """
        return self._ascending

    @ascending.setter
    def ascending(self, ascending: bool) -> None:
        """
        Setter for is ascending.

        Args:
            ascending (bool): is ascending
        """
        self._ascending = ascending

    @property
    def name(self) -> str:
        """
        Getter for name.

        Returns:
            str: name
        """
        return self._name

    @property
    def time_record(self) -> bool:
        """
        Getter for is time record.

        Returns:
            bool: is time record
        """
        return self._time_record

    @time_record.setter
    def time_record(self, time_record: bool) -> None:
        """
        Setter for is time record.

        Args:
            time_record (bool): is time record
        """
        self._time_record = time_record

    @property
    def scores(self) -> "list[Score]":
        """
        Getter for Scores list.

        Returns:
            list[Score]: List of Scores in this Category
        """
        return self._scores_map.values()

    def add_score(self, score: Score) -> None:
        """
        Adds score to dictionary storage map. Sorts dictionary by score value.

        Args:
            score (Score): Score to be added
        """
        if score.user in self._scores_map:
            self._scores_map[score.user].value = score.value
        else:
            self._scores_map[score.user] = score

        self._scores_map = dict(sorted(self._scores_map.items(), key=lambda x: x[1].value, reverse=not self.ascending))

    def clear(self) -> None:
        """
        Clears all Scores tracked in score map.
        This is a test function and shouldn't really be used.
        """
        self._scores_map.clear()

    def get_users(self) -> "list[str]":
        """
        Returns list of users in this category.

        Returns:
            list[str]: List of all users in category.
        """
        return self._scores_map.keys()

    def get_user_score(self, user: str) -> Score:
        """
        Gets a user's score. Returns None if user is not found.

        Args:
            user (str): Name of score to find

        Returns:
            Score: User's Score or None
        """
        if user in self._scores_map:
            return self._scores_map[user]
        return None

    def remove_score(self, user: str) -> Score:
        """
        Removes a user's score from dictionary storage.

        Args:
            user (str): user whose score to remove

        Returns:
            Score: User's Score or None
        """
        if user in self._scores_map:
            return self._scores_map.pop(user)
        return None

    def to_dict(self) -> dict:
        """
        Saves category data as a python dictionary.
        Does not include category name. It should be the key of above data structure.

        Returns:
            dict: Category class in dictionary format
        """
        data = {}
        data["ascending"] = self.ascending
        data["time_record"] = self.time_record
        data["scores"] = {}
        for score in self.scores:
            data["scores"][score.user] = score.value

        return data

    def to_str(self) -> str:
        """
        Returns Category object as a string.

        Returns:
            str: string of json representation of Category
        """
        return json.dumps(self.to_dict(), indent=4)