# This file is part of Booktype.
# Copyright (c) 2012 Aleksandar Erkalovic <aleksandar.erkalovic@sourcefabric.org>
#
# Booktype is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Booktype is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Booktype.  If not, see <http://www.gnu.org/licenses/>.

import os
from django.db import models
from django.contrib.auth.models import User
from django.utils.translation import ugettext_lazy as _

from django.conf import settings


class UserProfile(models.Model):
    """
    Booki user profile. Has additional information about user.

    @ivar mood: Status message for user.
    @ivar image: Profile image for user.
    @ivar description: "More" about this user.
    @ivar user: Reference to C{User}.
    """

    mood = models.CharField(_('mood'), max_length=1000, blank=True, null=False, default='')
    image = models.ImageField(_('image'), upload_to=settings.PROFILE_IMAGE_UPLOAD_DIR, null=True, blank=True)
    description = models.CharField(_('description'), max_length=2500, blank=False, null=False, default='')
    user = models.OneToOneField(User, verbose_name=_('user'), related_name='profile')

    def remove_image(self):
        self.image = None
        self.save()

        # remove file manually because of django doesn't do that automatically
        try:
            os.remove('%s/%s%s.jpg' % (settings.MEDIA_ROOT, settings.PROFILE_IMAGE_UPLOAD_DIR, self.user.username))
        except Exception as err:
            print err


class UserPassword(models.Model):
    """
    Stores data when user starts process of password changing.

    @ivar user: Reference to C{User}.
    @ivar secretcode: Randomly generated password.
    @ivar created: Timestamp when user started process of password changing.

    @ivar remote_useragent: Client user agent.
    @ivar addr: Client address.
    @ivar host: Client host.
    """

    user = models.ForeignKey(User, unique=False, verbose_name=_("user"))
    secretcode = models.CharField(_('secretcode'), max_length=30, blank=False, null=False)
    created = models.DateTimeField(_('created'), auto_now=True)

    # Translators: Visible only in Django Admin interface. No need to translate this.
    remote_useragent = models.CharField(_('remote useragent'), max_length=1000, blank=True, null=False, default='')
    # Translators: Visible only in Django Admin interface. No need to translate this.
    remote_addr = models.CharField(_('remote addr'), max_length=1000, blank=True, null=False, default='')
    # Translators: Visible only in Django Admin interface. No need to translate this.
    remote_host = models.CharField(_('remote host'), max_length=1000, blank=True, null=False, default='')


# post user save hook
def add_user_profile(sender, instance, created, **kwargs):
    """
    Django signal that fires when User model is being saved.
    """

    if created:
        user_profile = UserProfile(user=instance)
        user_profile.save()

models.signals.post_save.connect(add_user_profile, sender=User)