from django.db import models
from tagging.fields import TagField
from django.core.paginator import Paginator, InvalidPage, EmptyPage
from app.models import ItfModel

class BestPractice(ItfModel):
  title = models.CharField(max_length=512) 
  story = models.TextField()
  guideline = models.TextField(blank=True)
  law = models.TextField(blank=True)
  theatre = models.TextField(blank=True, help_text="Spotlight on Theatre text")
  quick_howto = models.TextField(blank=True)
  tags = TagField(blank=True, help_text="Enter as many tags as you like, separated by commas.")
  category = models.ForeignKey("BestPracticeCategory")
  added = models.DateTimeField(auto_now_add=True, null=True)  
  modified = models.DateTimeField(auto_now=True, null=True)

  fts_fields = ['title', 'story', 'guideline', 'law', 'theatre', 'quick_howto']
  fk_filters = ['category']
  sort_fields = ['title']

  def __unicode__(self):
    return self.title

  def info_dict(self):
    return {
      'id': self.id,
      'title': self.title,
      'story': self.story,
      'guideline': self.guideline,
      'law': self.law,
      'theatre': self.theatre,
      'quick_howto': self.quick_howto,
      'category': self.category.name,
      'category_id': self.category.id
    }

  def list_dict(self):
    return {
      'id': self.id,
      'title': self.title,
      'category': self.category.name,
    }

  def preview_dict(self):
    return {      
      'id': self.id,
      'title': self.title,
      'category': self.category.name,
      'quick_howto': self.quick_howto,
      'guideline': self.guideline
    }


class BestPracticeCategory(models.Model):
  name = models.CharField(max_length=256)
  description = models.TextField(blank=True)

  def __unicode__(self):
    return self.name

class BestPracticeLink(models.Model):
  url = models.URLField()
  text = models.TextField(blank=True)
  bestpractice = models.ForeignKey(BestPractice)

  def __unicode__(self):
    return self.url

class BestPracticeImage(models.Model):
  image = models.ImageField(upload_to='upload/images/bestpractices/')
  caption = models.CharField(max_length=512, blank=True)
  bestpractice = models.ForeignKey(BestPractice)

  def __unicode__(self):
    return self.caption