import datetime
import os

from django.dispatch import receiver
from django.contrib.gis.db import models
from django.db.models.signals import post_save
from django.contrib.contenttypes.fields import GenericRelation, GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.contrib.sites.models import Site
from django.urls import reverse
from django.utils.functional import cached_property
from django.apps import apps
from django.conf import settings
from django.contrib.sitemaps import Sitemap
from django import forms

from locations.models import Location
from utils.util import render_images, render_products, parse_video, markdown_to_html, extract_main_image


class Camp(models.Model):
    name = models.CharField(max_length=200)
    date_arrive = models.DateField('Arrival Date')
    date_depart = models.DateField('Departure Date', blank=True, null=True)
    distance_from_previous = models.FloatField(null=True, blank=True)
    link = models.CharField(max_length=200, null=True, blank=True)
    map_link = models.CharField(max_length=400, null=True, blank=True)
    point = models.PointField(null=True, blank=True)
    location = models.ForeignKey(Location, on_delete=models.CASCADE, null=True, blank=True)
    notes = models.TextField(null=True, blank=True)
    notes_html = models.TextField(null=True, blank=True)
    price = models.FloatField(null=True, blank=True)
    site_number = models.FloatField(null=True, blank=True)
    has_water = models.BooleanField(default=True)
    has_electric = models.BooleanField(default=True)
    has_dump = models.BooleanField(default=True)
    RATINGS = (
        ('1', "1 Star"),
        ('2', "2 Stars"),
        ('3', "3 Stars"),
        ('4', "4 Stars"),
        ('5', "5 Stars"),
    )
    rating = models.CharField(max_length=1, choices=RATINGS, null=True, blank=True)

    class Meta:
        ordering = ('date_arrive',)
        get_latest_by = 'date_arrive'

    def __str__(self):
        return self.name

    def get_absolute_url(self):
        if self.post_type == PostType.ESSAY:
            return reverse('essays:detail', kwargs={"slug": self.slug})
        if self.post_type == PostType.SRC:
            return reverse('src:detail', kwargs={"slug": self.slug})
        if self.post_type == PostType.FIELD_NOTE:
            return reverse('fieldnote:detail', kwargs={"year": self.pub_date.year, "month": self.pub_date.strftime("%m"), "slug": self.slug})
        if self.post_type == PostType.JRNL:
            return reverse('jrnl:detail', kwargs={"year": self.pub_date.year, "month": self.pub_date.strftime("%m"), "slug": self.slug})
        if self.post_type == PostType.RANGE:
            return reverse('range:range-detail', kwargs={"issue": self.get_issue_str(), "slug": self.slug})
        if self.post_type == PostType.FRIENDS:
            return reverse('friends:friends-detail', kwargs={"issue": self.get_issue_str(), "slug": self.slug})

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

    def get_featured_image_thumb(self):
        return self.featured_image.get_image_url_by_size("thumbnail")

    def get_content_type(self):
        return ContentType.objects.get(app_label="posts", model="post")

    def get_issue_str(self):
        issue = self.issue
        if self.issue < 100:
            issue = "0%s" % self.issue
            if self.issue < 10:
                issue = "00%s" % self.issue
        return issue

    @property
    def get_previous_published(self):
        return self.get_previous_by_date_arrive()

    @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_date_arrive()

    @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):
        created = self.pk is None
        self.notes_html = markdown_to_html(self.notes)
        super(Camp, self).save(*args, **kwargs)