from django.db import models
from django.contrib.auth.models import User
from users.models import Agency, AgencyGroup
# Create your models here.
from django.db import models
from django.utils import timezone
from django.conf import settings

def user_directory_path(instance, filename):
	# file will be uploaded to MEDIA_ROOT/agency_<id>/files/<subdirs>/<filename>
	return 'agencydata/agency_{0}/files/{1}'.format(instance.agency.pk, filename)


class Data(models.Model):
	subdir = models.CharField(max_length=2000, default="", blank=True, null=True)
	def1 = models.CharField(max_length=2000, default="", blank=True, null=True)
	file = models.FileField(null=True, max_length=255, upload_to=user_directory_path)
	date_created = models.DateTimeField(default = timezone.now)
	date_last_modified = models.DateTimeField(default = timezone.now)
	owner = models.ForeignKey(User, on_delete=models.PROTECT)
	agency = models.ForeignKey(Agency, on_delete=models.CASCADE, default=None)

	def __str__(self):		
		return str(self.file.name)



class DataDir(models.Model):
	name = models.CharField(max_length=2000, default="", blank=True, null=True)
	def2 = models.CharField(max_length=2000, default="", blank=True, null=True)
	is_root = models.BooleanField(default=False)
	is_defaultstandard = models.BooleanField(default=False)
	dirs = models.ManyToManyField('self', blank=True, related_name='dirs_in_dirs', symmetrical = False)
	visibleby = models.ManyToManyField(AgencyGroup, blank=True, related_name='visible_by_user')
	date_created = models.DateTimeField(default = timezone.now)
	date_last_modified = models.DateTimeField(default = timezone.now)
	owner = models.ForeignKey(User, on_delete=models.PROTECT, blank=True, null=True)
	agency = models.ForeignKey(Agency, on_delete=models.CASCADE)	
	parent = models.ForeignKey('DataDir', on_delete=models.CASCADE, blank=True, null=True, related_name='dir_in_dir')

	def __str__(self):		
		return str(self.name)


class DataFile(models.Model):
	name = models.CharField(max_length=2000, default="", blank=True, null=True)
	def2 = models.CharField(max_length=2000, default="", blank=True, null=True)
	file = models.FileField(null=True, max_length=255, upload_to=user_directory_path, blank=True)
	date_created = models.DateTimeField(default = timezone.now)
	date_last_modified = models.DateTimeField(default = timezone.now)
	owner = models.ForeignKey(User, on_delete=models.PROTECT, default=None, blank=True, null=True)
	agency = models.ForeignKey(Agency, on_delete=models.CASCADE, default=None, blank=True, null=True)
	parent = models.ForeignKey(DataDir, on_delete=models.PROTECT, related_name='thisfileindir', blank=True, null=True)

	def __str__(self):		
		return str(self.name)