import re

from django.forms import ValidationError
from django.utils.translation import gettext, gettext_lazy as _

from . import basefields


class BioField(basefields.UrlifiedTextareaProfileField):
    fieldname = 'bio'
    label = _("Bio")


class RealNameField(basefields.TextProfileField):
    fieldname = 'real_name'
    label = _("Real name")


class LocationField(basefields.TextProfileField):
    fieldname = 'location'
    label = _("Location")


class GenderField(basefields.ChoiceProfileField):
    fieldname = 'gender'
    label = _("Gender")

    choices = (
        ('', _('Not specified')),
        ('secret', _('Not telling')),
        ('female', _('Female')),
        ('male', _('Male')),
    )


class WebsiteField(basefields.UrlProfileField):
    fieldname = 'website'
    label = _("Website")
    help_text = _(
        'If you own website in the internet you wish to share on your profile '
        'you may enter its address here. Remember to for it to be valid http '
        'address starting with either "http://" or "https://".'
    )


class SkypeIdField(basefields.TextProfileField):
    fieldname = 'skype'
    label = _("Skype ID")
    help_text = _(
        "Entering your Skype ID in this field may invite other users to contact you over "
        "the Skype instead of via private threads."
    )


class TwitterHandleField(basefields.TextProfileField):
    fieldname = 'twitter'
    label = _("Twitter handle")

    def get_help_text(self, user):
        return _(
            'If you own Twitter account, here you may enter your Twitter handle for other users '
            'to find you. Starting your handle with "@" sign is optional. Either "@%(slug)s" or '
            '"%(slug)s" are valid values.'
        ) % {
            'slug': user.slug
        }

    def get_value_display_data(self, request, user, value):
        return {
            'text': '@%s' % value,
            'url': 'https://twitter.com/%s' % value,
        }

    def clean(self, request, user, data):
        data = data.lstrip('@')
        if data and not re.search('^[A-Za-z0-9_]+$', data):
            raise ValidationError(gettext("This is not a valid twitter handle."))
        return data


class JoinIpField(basefields.TextProfileField):
    fieldname = 'join_ip'
    label = _("Join IP")
    readonly = True

    def get_value_display_data(self, request, user, value):
        if not request.user_acl.get('can_see_users_ips'):
            return None

        if not user.joined_from_ip:
            return None

        return {
            'text': user.joined_from_ip
        }