import datetime
from django.db import models

import markdown
PUB_STATUS = (
        (0, 'Draft'),
        (1, 'Published'),
    )
def markdown_processor(md):    
    return markdown.markdown(md, ['footnotes'],safe_mode = False)


class Code(models.Model):
    name = models.CharField(max_length=254)
    slug = models.SlugField()
    date_created = models.DateField('Date Created')
    status = models.IntegerField(choices=PUB_STATUS, default=0)
    body_html = models.TextField(blank=True)

    class Meta:
        verbose_name_plural = "Code"
        app_label = 'projects'
        ordering = ('-date_created',)
    # Returns the string representation of the model.
    def __unicode__(self):
        return self.slug

class CodeBlogEntry(models.Model):
    title = models.CharField(max_length=254)
    slug = models.SlugField()
    body_markdown = models.TextField()
    body_html = models.TextField(blank=True)
    pub_date = models.DateTimeField('Date published', blank=True)
    status = models.IntegerField(choices=PUB_STATUS, default=0)
    enable_comments = models.BooleanField(default=True)

    class Meta:
        verbose_name_plural = "Code Blog"
        app_label = 'projects'
        ordering = ('-pub_date',)

    # Returns the string representation of the model.
    def __unicode__(self):
        return self.slug
    
    def get_absolute_url(self):
        return "/projects/code/%s/%s/" % (self.pub_date.strftime("%Y/%b/%d").lower(), self.slug)
    
    @property
    def get_previous_published(self):
        return self.get_previous_by_pub_date(status__exact=1)
    
    @property  
    def get_next_published(self):
        return self.get_next_by_pub_date(status__exact=1)

        
    def comment_period_open(self):
        return self.enable_comments and datetime.datetime.today() - datetime.timedelta(30) <= self.pub_date

    def save(self): 
         self.body_html = markdown_processor(self.body_markdown)
         if not self.id and self.pub_date == None:
             self.pub_date = datetime.datetime.now()
         super(CodeBlogEntry, self).save()



DEMO_TEMPLATES =  (
        (0, 'Blank'),
        (1, 'Basic_light'),
    )


class CodeBlogDemo(models.Model):
    title = models.CharField(max_length=254)
    slug = models.SlugField()
    body = models.TextField(blank=True,null=True)
    head = models.TextField(blank=True,null=True)
    template= models.IntegerField(choices=DEMO_TEMPLATES, default=0)
    pub_date = models.DateTimeField('Date published',blank=True)
    class Meta:
        verbose_name_plural = "Demos"
        app_label = 'projects'
        ordering = ('-pub_date',)

    def save(self): 
         if not self.id:
             self.pub_date = datetime.datetime.now()
         super(CodeBlogDemo, self).save()