SKILL_SCORE_DICT = {
    ".12--1<": 2.0,
    ".12--1o": 1.7,
    ".41/": 0.6,
    ".8-1<": 1.3,
    ".8-1o": 1.1,
    ".8-3<": 1.5,
    ".8-3o": 1.3,
    ".821<": 1.5,
    "4.-/": 0.6,
    "8.--/": 1.0,
    "8.--<": 1.2,
    "8.--o": 1.0,
    "8.11<": 1.4,
    "8.11o": 1.2,
    "8.22/": 1.6,
    "8.22o": 1.4,
    "8.31<": 1.6,
}

FRONTWARD = 1
BACKWARD = 0


class Skill:
    """Class skill

    Each object `skill` is composed by the following fields :
        - numeric_code:                 cleaned string of skill numeric code
        - direction:                    direction of the skill (frontward or backward)
        - rotation_quantity:            summersault quantity (1, 2, 3 or 4)
        - quart_summersault_rotation:   quantity of quart sommersault rotation (from 1 to 16)
        - half_twist_rotation:          quantity of half twist rotation (from 0 to 9)
        - position:                     position of the skill (o, < or /)
        - difficulty:                   difficulty value of the skill
        - twisting:                     twisting part of the skill
        - twist_in_quantity:
        - twist_out_quantity:

    """

    def __get_direction(self):
        if self.numeric_code.startswith("."):
            self.direction = FRONTWARD
        elif self.numeric_code.find("."):
            self.direction = BACKWARD
        else:
            self.direction = None

    def __get_position(self):
        position = self.numeric_code[-1:]
        if position == "o" or position == "<" or position == "/":
            self.position = position
        else:
            self.position = None

    def __get_rotation_quantity(self):
        rotation_quantity = len(self.numeric_code)
        self.twisting_start_position = 2
        if rotation_quantity == 4:
            self.rotation_quantity = 1
        elif rotation_quantity == 5:
            self.rotation_quantity = 2
        elif rotation_quantity == 7:
            self.rotation_quantity = 3
            self.twisting_start_position = 3
        elif rotation_quantity == 8:
            self.rotation_quantity = 4
            self.twisting_start_position = 3
        else:
            self.rotation_quantity = None
            self.twist_in_quantity = None
            self.twist_out_quantity = None
            self.twisting_start_position = None
            print(f"Unknow skill: {self.numeric_code}")

    def __get_twisting_part(self):
        self.twisting = self.numeric_code[self.twisting_start_position : -1]

    def __get_quart_sommersault_rotation(self):
        if self.rotation_quantity == 1 or self.rotation_quantity == 2:
            if self.direction == FRONTWARD:
                self.quart_summersault_rotation = self.numeric_code[1]
            else:
                self.quart_summersault_rotation = self.numeric_code[0]
        elif self.rotation_quantity == 3 or self.rotation_quantity == 4:
            if self.direction == FRONTWARD:
                self.quart_summersault_rotation = self.numeric_code[1:3]
            else:
                self.quart_summersault_rotation = self.numeric_code[0:2]
        else:
            self.quart_summersault_rotation = None

    def __get_half_twist_rotation(self):
        self.half_twist_rotation = 0
        for x in self.twisting:
            if x != "-":
                self.half_twist_rotation += int(x)

    def __get_difficulty_value(self):
        self.difficulty = int(self.half_twist_rotation) * 0.1
        self.difficulty += int(self.quart_summersault_rotation) * 0.1
        self.difficulty += (int(self.quart_summersault_rotation) // 4) * 0.1
        self.difficulty += (int(self.quart_summersault_rotation) // 12) * 0.1
        self.difficulty += (int(self.quart_summersault_rotation) // 16) * 0.1
        if self.position == "<" or self.position == "/":
            self.difficulty += (int(self.quart_summersault_rotation) // 4) * 0.1

    def __init__(self, skill_string):
        self.numeric_code = skill_string.strip().replace("\s", "")
        self.__get_direction()
        self.__get_position()
        self.__get_rotation_quantity()
        self.__get_twisting_part()
        self.__get_quart_sommersault_rotation()
        self.__get_half_twist_rotation()
        self.__get_difficulty_value()
        self.twist_in_quantity = 0 if self.twisting[0] == "-" else int(self.twisting[0])
        self.twist_out_quantity = (
            0 if self.twisting[-1:] == "-" else int(self.twisting[-1:])
        )

    def __str__(self):
        return f"{self.numeric_code}: {self.quart_summersault_rotation} quart of {self.direction} with {self.half_twist_rotation} in {self.position} position (difficulty: {self.difficulty})."