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from functools import partial
from django.db import models
from core.uploads import upload_namer
from stator.models import State, StateField, StateGraph, StatorModel
class PostAttachmentStates(StateGraph):
new = State(try_interval=30000)
fetched = State()
new.transitions_to(fetched)
@classmethod
async def handle_new(cls, instance):
# TODO: Fetch images to our own media storage
pass
class PostAttachment(StatorModel):
"""
An attachment to a Post. Could be an image, a video, etc.
"""
post = models.ForeignKey(
"activities.post",
on_delete=models.CASCADE,
related_name="attachments",
)
state = StateField(graph=PostAttachmentStates)
mimetype = models.CharField(max_length=200)
# File may not be populated if it's remote and not cached on our side yet
file = models.FileField(
upload_to=partial(upload_namer, "attachments"), null=True, blank=True
)
remote_url = models.CharField(max_length=500, null=True, blank=True)
# This is the description for images, at least
name = models.TextField(null=True, blank=True)
width = models.IntegerField(null=True, blank=True)
height = models.IntegerField(null=True, blank=True)
focal_x = models.IntegerField(null=True, blank=True)
focal_y = models.IntegerField(null=True, blank=True)
blurhash = models.TextField(null=True, blank=True)
def is_image(self):
return self.mimetype in [
"image/apng",
"image/avif",
"image/gif",
"image/jpeg",
"image/png",
"image/webp",
]
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