from django.db import models
from django.template.defaultfilters import slugify
from django.contrib.sitemaps import Sitemap

from utils.util import markdown_to_html, render_images


class Page(models.Model):
    title = models.CharField(max_length=200)
    slug = models.SlugField()
    body_html = models.TextField(blank=True)
    body_markdown = models.TextField()
    meta_description = models.CharField(max_length=256, null=True, blank=True)
    path = models.CharField(max_length=200, 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)
        if not self.slug:
            self.slug = slugify(self.title)[:50]
        super(Page, self).save()


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

    def items(self):
        return Page.objects.all()