# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division, with_statement

from datetime import datetime
import os.path
import math
import random
import re
import subprocess
import unicodedata
from glob import glob

from django.db import models
from django.db.models import Q
from django.contrib.auth.models import User
from django.core.files.base import ContentFile
from django.utils import simplejson as json
from django.conf import settings

from ox.django import fields
import ox
from ox import stripTags
from ox.normalize import canonicalTitle, canonicalName


class List(models.Model):
    class Meta:
        unique_together = ("user", "name")

    created = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)
    user = models.ForeignKey(User)
    name = models.CharField(max_length=255)
    public = models.BooleanField(default=False)
    items = models.ManyToManyField('item.Item', related_name='lists', through='ListItem')

    def add(self, item):
        q = self.items.filter(id=item.id)
        if q.count() == 0:
            l = ListItem()
            l.list = self
            l.item = item
            l.save()

    def remove(self, item):
        self.ListItem.objects.all().filter(item=item, list=self).delete()

    def __unicode__(self):
        return u'%s (%s)' % (self.title, unicode(self.user))

    def editable(self, user):
        #FIXME: make permissions work
        if self.user == user or user.has_perm('Ox.admin'):
            return True
        return False

class ListItem(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)
    list = models.ForeignKey(List)
    item = models.ForeignKey('item.Item')

    def __unicode__(self):
        return u'%s in %s' % (unicode(self.item), unicode(self.list))