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import re
from django.db import models
from django.contrib.sitemaps import Sitemap
from django.contrib.sites.models import Site

from media.models import LuxImage
from posts.models import Post 
from utils.util import markdown_to_html, render_images


class Page(models.Model):
    title = models.CharField(max_length=200)
    sub_title = models.CharField(max_length=300, blank=True)
    slug = models.SlugField()
    body_html = models.TextField(blank=True)
    body_markdown = models.TextField()
    meta_description = models.CharField(max_length=256, blank=True)
    path = models.CharField(max_length=200, blank=True)
    app = models.CharField(max_length=50, blank=True)
    build = models.BooleanField(default=True)
    enable_comments = models.BooleanField(default=False)
    site = models.ForeignKey(Site, on_delete=models.CASCADE)
    featured_image = models.ForeignKey(LuxImage, on_delete=models.CASCADE, null=True, blank=True)
    pub_date = models.DateTimeField('Date published', null=True, blank=True)

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        if self.path:
            return "/%s/%s" % (self.path, self.slug)
        else:
            return "/%s" % (self.slug)

    def save(self):
        # run markdown
        md = render_images(self.body_markdown)
        self.body_html = markdown_to_html(md)
        super(Page, self).save()


class HomePage(models.Model):
    """
    simple model to control the featured article on the homepage
    also allows me to fudge the "popular" section to be what I want
    """
    featured_image = models.ForeignKey(LuxImage, on_delete=models.CASCADE, null=True, blank=True)
    tag_line = models.CharField(max_length=200, null=True, blank=True)
    featured = models.ForeignKey(Post, on_delete=models.CASCADE, related_name="banner", null=True, blank=True)
    #popular = models.ManyToManyField(Post, related_name="popular")
    template_name = models.CharField(max_length=200, help_text="full path", null=True, blank=True)


class PageSitemap(Sitemap):
    changefreq = "never"
    priority = 1.0
    protocol = "https"

    def items(self):
        return Page.objects.filter(build=True)