# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.conf import settings
from django.core.validators import MaxLengthValidator
from django.db import models
from django.utils.html import mark_safe
from django.utils.encoding import python_2_unicode_compatible
from django.db.models.signals import m2m_changed
from django.dispatch import receiver


from photologue.models import Photo, Gallery
from markdownx.models import MarkdownxField
from markdownx.utils import markdownify
from sortedm2m.fields import SortedManyToManyField
import ox
import lxml.html


# Create your models here.

def sanitize_html(string):
    try:
        html = '\n'.join(lxml.html.tostring(x) for x in lxml.html.fragment_fromstring(string).iterchildren())
    except:
        html = ox.strip_tags(string.replace('<br>', '\n')).replace('\n\n', '\n').replace('\n', '<br>')
    return html

class Acrolike(models.Model):
    title = models.CharField(max_length=255)

    class Meta:
        # managed = False
        db_table = 'acrolike'


class Acronym(models.Model):
    name = models.CharField(max_length=255, blank=True, null=True)
    c = models.CharField(max_length=50, blank=True, null=True)
    a = models.CharField(max_length=50, blank=True, null=True)
    m = models.CharField(max_length=50, blank=True, null=True)
    p = models.CharField(max_length=50, blank=True, null=True)

    class Meta:
        # managed = False
        db_table = 'acronym'


class Audios(models.Model):
    filename = models.CharField(max_length=255)
    title = models.CharField(max_length=255, blank=True, null=True)
    description = models.TextField(blank=True, null=True)

    class Meta:
        # managed = False
        db_table = 'audios'



class Comments(models.Model): #not used
    comment = models.TextField()
    name = models.CharField(max_length=150, blank=True, null=True)
    email = models.CharField(max_length=255, blank=True, null=True)
    personid = models.IntegerField(db_column='personID', blank=True, null=True)  # Field name made lowercase.
    dateadded = models.DateTimeField(db_column='dateAdded')  # Field name made lowercase.
    datemodified = models.DateTimeField(db_column='dateModified', blank=True, null=True)  # Field name made lowercase.
    parentid = models.IntegerField(db_column='parentID', blank=True, null=True)  # Field name made lowercase.
    contentid = models.IntegerField(db_column='contentID')  # Field name made lowercase.
    ip = models.CharField(db_column='IP', max_length=50, blank=True, null=True)  # Field name made lowercase.

    class Meta:
        # managed = False
        db_table = 'comments'


@python_2_unicode_compatible
class Content(models.Model):
    type = models.ForeignKey("ContentTypes", db_column="type")
    shortname = models.CharField('Slug', db_column='shortName', max_length=255, unique=True)
    title = models.CharField(max_length=255)
    header = MarkdownxField(blank=True, null=True, default='')
    body = MarkdownxField(blank=True, null=True, default='')
    teaser = models.TextField(blank=True, null=True, validators=[MaxLengthValidator(250)])
    schedule = MarkdownxField(blank=True, null=True, default='')
    schedulebutton = models.CharField(db_column='scheduleButton', max_length=255, blank=True, null=True)  # Field name made lowercase.
    optbtn2 = models.CharField(db_column='optBtn2', max_length=127, blank=True, null=True)  # Field name made lowercase.
    opttext2 = models.TextField(db_column='optText2', blank=True, null=True)  # Field name made lowercase.
    optbtn3 = models.CharField(db_column='optBtn3', max_length=127, blank=True, null=True)  # Field name made lowercase.
    opttext3 = models.TextField(db_column='optText3', blank=True, null=True)  # Field name made lowercase.
    technotes = models.TextField(db_column='technotes', blank=True, null=True)
    image = models.CharField(max_length=150, blank=True, null=True, editable=False)
    photo = models.ForeignKey(Photo, null=True, blank=True, related_name="main_photo")

    postedby = models.CharField(db_column='postedBy', max_length=50, blank=True, null=True)  # Field name made lowercase.
    datestart = models.DateField(db_column='dateStart', blank=True, null=True)  # Field name made lowercase.
    dateend = models.DateField(db_column='dateEnd', blank=True, null=True)  # Field name made lowercase.
    dateadded = models.DateTimeField(db_column='dateAdded', auto_now_add=True, editable=True)  # Field name made lowercase.
    datemodified = models.DateTimeField(db_column='dateModified', blank=True, null=True, auto_now=True)  # Field name made lowercase.
    published = models.BooleanField(default=False)
    featured = models.BooleanField(default=False)
    view = models.ForeignKey("Views", null=True, blank=True, db_column="view", editable=False)
    place = models.CharField(max_length=255, null=True, blank=True)
    parents = models.ManyToManyField('Content', through='ContentContent', related_name="children")

    related_content = SortedManyToManyField('Content', null=True, blank=True, related_name='reverse_related_content')

    resources = models.ManyToManyField('Resources', through='ContentResource', related_name="content")
    gallery = models.ForeignKey(Gallery, null=True, blank=True, related_name="content")

    # delete after migration
    parentid = models.IntegerField(null=True, db_column='parentID', blank=True, editable=False)

    # end of delte

    def __str__(self):
        return self.title

    @property
    def formatted_header(self):
        return mark_safe(markdownify(self.header))

    @property
    def formatted_body(self):
        return mark_safe(markdownify(self.body))

    @property
    def formatted_teaser(self):
        if self.teaser:
            value = markdownify(self.teaser)
        elif self.header:
            value = ox.decode_html(markdownify(self.header))
            value = sanitize_html('<div>' + value + '</div>')
        else:
            value = ''
        return mark_safe(value)

    @property
    def formatted_schedule(self):
        return mark_safe(markdownify(self.schedule))

    @property
    def typefilter(self):
        return self.type

    def admin_thumbnail_(self):
        src = None
        if self.photo:
            src = self.photo.get_thumbnail_url()
        if self.image:
            if self.image.startswith('http') or self.image.startswith('/'):
                src = self.image
            else:
                src = settings.IMAGE_PREFIX + self.image
        if src:
            return mark_safe(u'<a href="{}"><img src="{}"></a>'.format(self.get_absolute_url(), src))

    @property
    def image_url(self):
        if self.photo:
            url = self.photo.image.url
            if not url.lower().endswith('.gif'):
                url = self.photo.get_display_url()
            return url
        if self.image:
            if self.image.startswith('http') or self.image.startswith('/'):
                return self.image
            return settings.IMAGE_PREFIX + self.image

    def images(self):
        return self.resources.filter(type=2).exclude(href=self.image).order_by('orderno')

    def get_absolute_url(self):
        if self.shortname:
            parts = []
            section = self.type.name
            if section == 'news':
                section = 'events'
            if section == 'page':
                parts = [self.shortname]
            else:
                parts = [section, self.shortname]
            return '/' + '/'.join(parts)

    def get_gallery(self):
        if not self.gallery:
            gallery, created = Gallery.objects.get_or_create(slug=self.shortname)
            if created:
                title = self.title
                n = 1
                while Gallery.objects.filter(title=title).exclude(pk=gallery.pk).exists():
                    n += 1
                    title = '%s [%s]' % (self.title, n)
                gallery.title = title
                gallery.save()
            self.gallery = gallery
            self.save()
        return self.gallery

    class Meta:
        managed = True
        db_table = 'content'

    def reverse(self):
        ids = set(self.related_content.all().values_list('id', flat=True))
        for r in self.reverse_related_content.exclude(id__in=ids):
            self.reverse_related_content.remove(r)
        reverse_ids = set(self.reverse_related_content.all().values_list('id', flat=True))
        for r in self.related_content.filter(id__in=ids - reverse_ids):
            self.reverse_related_content.add(r)

@receiver(m2m_changed, sender='content.Content_related_content')
def post_save_reverse(sender, **kwargs):
    if kwargs.get('action') == 'post_add':
        c = kwargs['instance']
        c.reverse()

@python_2_unicode_compatible
class ContentContent(models.Model):
    contentid1 = models.ForeignKey("content", db_column='contentID1', related_name="child")  # Field name made lowercase.
    contentid2 = models.ForeignKey("content", db_column='contentID2', related_name="parent")  # Field name made lowercase.

    def __str__(self):
        return self.contentid1.title

    class Meta:
        # managed = False
        db_table = 'content_content'
        verbose_name = 'related content'
        verbose_name_plural = 'related content'

    def reverse(self):
        r, created = ContentContent.objects.get_or_create(contentid1=self.contentid2, contentid2=self.contentid1)
        return r

    def save(self, *args, **kwargs):
        super(ContentContent, self).save(*args, **kwargs)
        self.reverse()

class ContentKeyword(models.Model):
    contentid = models.IntegerField(db_column='contentID')  # Field name made lowercase.
    keywordid = models.IntegerField(db_column='keywordID')  # Field name made lowercase.

    class Meta:
        # managed = False
        db_table = 'content_keyword'


@python_2_unicode_compatible
class ContentResource(models.Model):
    contentid = models.ForeignKey('Content', db_column='contentID')
    resourceid = models.ForeignKey('Resources', db_column='resourceID')

    def __str__(self):
        return self.resource.href

    class Meta:
        # managed = False
        db_table = 'content_resource'


@python_2_unicode_compatible
class ContentTypes(models.Model):
    id = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=255)
    description = models.TextField(blank=True, null=True)

    def __str__(self):
        return self.name

    class Meta:
        # managed = False
        db_table = 'content_types'


class Keywords(models.Model):
    name = models.CharField(max_length=255)
    description = models.TextField(blank=True, null=True)

    class Meta:
        # managed = False
        db_table = 'keywords'


@python_2_unicode_compatible
class People(models.Model): #not used
    name = models.CharField(max_length=255, blank=True, null=True)
    email = models.CharField(max_length=255, blank=True, null=True)
    location = models.CharField(max_length=255, blank=True, null=True)
    login = models.CharField(max_length=100, blank=True, null=True)
    password = models.CharField(max_length=16, blank=True, null=True)
    href = models.CharField(max_length=255, blank=True, null=True)
    bio = models.TextField(blank=True, null=True)
    type = models.IntegerField()

    resources = models.ManyToManyField('Resources', through='PersonResource', related_name='people')
    content = models.ManyToManyField('Content', through='PersonContent', related_name='people')

    def __str__(self):
        return self.name

    class Meta:
        # managed = False
        db_table = 'people'


class PersonContent(models.Model):
    personid = models.ForeignKey("people", db_column="personID")
    contentid = models.ForeignKey("content", db_column="contentID")
    level = models.IntegerField()

    class Meta:
        # managed = False
        db_table = 'person_content'


class PersonResource(models.Model):
    personid = models.ForeignKey("people", db_column="personID")
    resourceid = models.ForeignKey("resources", db_column="resourceID")

    class Meta:
        # managed = False
        db_table = 'person_resource'


class Resources(models.Model):

    TYPE_CHOICES = (
        (1, "Resources"),
        (2, "Images"),
        (3, "Links"),
    )

    type = models.IntegerField(choices=TYPE_CHOICES)
    href = models.CharField(max_length=255)
    description = models.TextField(blank=True, null=True)
    mime = models.CharField(max_length=10, blank=True, null=True)
    width = models.IntegerField(blank=True, null=True)
    height = models.IntegerField(blank=True, null=True)
    istech = models.IntegerField(db_column='isTech')  # Field name made lowercase.
    dateadded = models.DateTimeField(db_column='dateAdded', null=True, blank=True)  # Field name made lowercase.
    orderno = models.IntegerField(db_column='orderNo', blank=True, null=True)  # Field name made lowercase.

    def get_absolute_url(self):
        href = self.href
        if not href.startswith('http') and not href.startswith('/'):
            href = '/' + href
        if href.startswith('/'):
            href = 'https://studio.camp' + href
        return href

    @property
    def is_image(self):
        if self.mime:
            return self.mime.lower() in ('gif', 'jpeg', 'jpg', 'png')

    @property
    def is_audio(self):
        if self.mime:
            return self.mime.lower() in ('mp3', 'ogg')

    @property
    def is_video(self):
        if self.mime:
            return self.mime.lower() in ('ogv', 'mp4')

    class Meta:
        # managed = False
        db_table = 'resources'

class File(models.Model):
    content = models.ForeignKey('Content')
    file = models.FileField(upload_to='files')
    description = models.TextField(blank=True, null=True)
    date = models.DateTimeField(auto_now_add=True)
    order = models.IntegerField(blank=True, null=True)

    class Meta:
        ordering = ['order', 'file']

    def get_absolute_url(self):
        return '/' + self.file.name

    @property
    def name(self):
        return self.description or self.file.name

class Image(models.Model):
    content = models.ForeignKey('Content', related_name='images')
    image = models.ImageField(upload_to='camp/static/images')
    description = models.TextField(blank=True, null=True)
    date = models.DateTimeField(auto_now_add=True)
    order = models.IntegerField(blank=True, null=True)

@python_2_unicode_compatible
class Link(models.Model):
    content = models.ForeignKey('Content')
    url = models.URLField(max_length=4096)
    description = models.TextField(blank=True, null=True)
    date = models.DateTimeField(auto_now_add=True)
    order = models.IntegerField(blank=True, null=True)

    class Meta:
        ordering = ['order', 'url']

    def __str__(self):
        return self.url

class Videos(models.Model): # not used
    sha1 = models.CharField(max_length=50)
    href = models.CharField(max_length=255)
    title = models.TextField(blank=True, null=True)
    description = models.TextField(blank=True, null=True)
    width = models.IntegerField(blank=True, null=True)
    height = models.IntegerField(blank=True, null=True)
    duration = models.IntegerField(blank=True, null=True)
    thumbno = models.IntegerField(db_column='thumbNo')  # Field name made lowercase.
    image = models.CharField(max_length=255, blank=True, null=True)
    contentid = models.IntegerField(blank=True, null=True)

    class Meta:
        # managed = False
        db_table = 'videos'


@python_2_unicode_compatible
class Views(models.Model):
    name = models.CharField(max_length=255)
    href = models.CharField(max_length=255, blank=True, null=True)

    def __str__(self):
        return self.name

    class Meta:
        # managed = False
        db_table = 'views'


class MyModel(models.Model):
    myfield = MarkdownxField()