import datetime
from django.contrib.gis.db import models
from django.urls import reverse
from django.apps import apps

from utils.util import render_images, markdown_to_html


class Source(models.Model):
    name = models.CharField(max_length=200)
    link = models.CharField(max_length=400)
    SOURCE_TYPE = (
        (0, 'Book'),
        (1, 'Website'),
        (2, 'Other'),
    )
    source_type = models.IntegerField(choices=SOURCE_TYPE, default=0)

    class Meta:
        ordering = ('name',)
    
    def __str__(self):
        return self.name


class Prompt(models.Model):
    title = models.CharField(max_length=200)
    subtitle = models.CharField(max_length=200, blank=True)
    meta_description = models.CharField(max_length=256, null=True, blank=True)
    slug = models.SlugField(unique_for_date='pub_date', blank=True)
    body_markdown = models.TextField()
    body_html = models.TextField(blank=True)
    pub_date = models.DateTimeField(default=datetime.datetime.now)
    source = models.CharField(max_length=350, blank=True)
    PROMPT_TYPE = (
        (0, 'Meditation'),
        (1, 'Writing'),
        (2, 'Kids Writing'),
    )
    prompt_type = models.IntegerField(choices=PROMPT_TYPE, default=0)

    class Meta:
        ordering = ('-pub_date',)
        get_latest_by = 'pub_date'

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse("prompt:detail", kwargs={"slug": self.slug})

    @property
    def get_previous_published(self):
        return self.get_previous_by_pub_date(status__exact=1)

    @property
    def get_previous_admin_url(self):
        n = self.get_previous_by_pub_date()
        return reverse('admin:%s_%s_change' % (self._meta.app_label,  self._meta.model_name),  args=[n.id])

    @property
    def get_next_published(self):
        return self.get_next_by_pub_date(status__exact=1)

    @property
    def get_next_admin_url(self):
        model = apps.get_model(app_label=self._meta.app_label, model_name=self._meta.model_name)
        try:
            return reverse('admin:%s_%s_change' % (self._meta.app_label,  self._meta.model_name),  args=[self.get_next_by_pub_date().pk])
        except model.DoesNotExist:
            return ''

    def save(self, *args, **kwargs):
        md = render_images(self.body_markdown)
        self.body_html = markdown_to_html(md)
        super(Prompt, self).save(*args, **kwargs)



class Source(models.Model):
    name = models.CharField(max_length=200)
    link = models.CharField(max_length=400)
    SOURCE_TYPE = (
        (0, 'Book'),
        (1, 'Website'),
        (2, 'Other'),
    )
    source_type = models.IntegerField(choices=SOURCE_TYPE, default=0)

    class Meta:
        ordering = ('name',)
    
    def __str__(self):
        return self.name