# -*- coding: utf-8 -*-

import re

from .error import InvalidTel

class Telnumber:

    """A telefonnumer, with splitted country part"""

    re_telnum=re.compile(r'^\s*(\+)?([0-9\s\-/\(\)]){5,}\s*$')

    """Regex for a complete telefon number"""

    re_land=re.compile(r'^\s*(\+|00)(?P<land>[1-9]{2})')

    """Regex for country part"""

    re_number=re.compile(r'[^0-9]')

    """Regex for numbers"""

    std_land="49"

    """Standard country part"""

    def __init__(self,number=None):

        """

        :param string number: a telefonnumber

        .. automethod:: __eq__

        .. automethod:: __neq__

        .. automethod:: __hash__

        .. automethod:: __str__

        .. automethod:: __repr__

        """

        self.land = None

        """Country part of a telefonnumber"""

        self.number = None

        """Localpart of the telefonnumber"""

        if not(number is  None):

            self.createNumber(number)

    def createNumber(self, number):

        """Split string into two parts: one country part and the rest.

        For a local number :attr:`std_land` will be used for country part.

        :param string number: a telefonnumber

        """

        if not self.re_telnum.match(number):

            raise InvalidTel(number)

        self.land=self.std_land

        land=self.re_land.match(number)

        if land:

            self.land=land.group("land")

            number=number[land.end("land"):]

        number=self.re_number.sub('',number)

        if number[0]=="0":

            number=number[1:]

        self.number = number

    def __eq__(self, y):

        """Return ``True``, if y hase the same telefonnumber"""

        return ((self.number == y.number) and ( self.land == y.land))

    def __neq__(self, y):

        """Return ``True``, if y is not equal (see :meth:`__eq__`)"""

        return not self.__eq__(y)

    def __hash__(self):

        """Return the Hash for telefonnumbers.

        Yust use the hash of the string representation of the Number

        """

        return str(self).__hash__()

    def __str__(self):

        """String representation of the telefonnumber.

        :return: the international telefonnumber with leading zeros

        """

        return "00%s%s"%(self.land,self.number)

    def __repr__(self):

        """debug representation of the class.

        :return: `<Telnumber 0012345667>`

        """

        return "<Telnumber %s>"%str(self)