#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2017 lafrite <lafrite@Poivre>
#
# Distributed under terms of the MIT license.

"""
Tokens representing interger and decimal

"""
from .token import Token
from ...core.MO import MOnumber, MOFraction
from decimal import Decimal as _Decimal

__all__ = ["Integer", "Decimal"]

class Integer(Token):

    """ Token representing a integer """

    def __init__(self, mo, name=""):
        if not isinstance(mo, MOnumber):
            raise TypeError
        if  not isinstance(mo.value, int):
            raise TypeError

        Token.__init__(self, mo, name)
        self._mathtype = 'entier'

    @classmethod
    def random(cls):
        raise NotImplemented

class Decimal(Token):

    """ Token representing a decimal """

    def __init__(self, mo, name=""):
        if not isinstance(mo, MOnumber):
            raise TypeError
        if  not isinstance(mo.value, _Decimal):
            raise TypeError

        Token.__init__(self, mo, name)
        self._mathtype = 'décimal'

    @classmethod
    def random(cls):
        raise NotImplemented

class Fraction(Token):

    """ Token representing a fraction """

    def __init__(self, mo, name=""):
        if not isinstance(mo, MOFraction):
            raise TypeError
        if  not isinstance(mo._numerator, MOnumber):
            raise TypeError
        if  not isinstance(mo._denominator, MOnumber):
            raise TypeError

        Token.__init__(self, mo, name)
        self._mathtype = 'fraction'

    @classmethod
    def random(cls):
        raise NotImplemented

    @property
    def numerator(self):
        return self._mo.numerator

    @property
    def denominator(self):
        return self._mo.denominator


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