import json
from channels.generic.websocket import AsyncWebsocketConsumer
from django.contrib.auth.models import AnonymousUser

from submissions.signals import STAFF_GROUP_NAME


class SubmissionsConsumer(AsyncWebsocketConsumer):
    async def connect(self):
        self.user = self.scope["user"]

        if isinstance(self.user, AnonymousUser):
            await self.close()
            return

        self.group_names = [f"submissions_user_{self.user.id}"]
        if self.user.is_staff:
            self.group_names.append(STAFF_GROUP_NAME)

        for group_name in self.group_names:
            await self.channel_layer.group_add(group_name, self.channel_name)
        await self.accept()

    async def disconnect(self, close_code):
        # closed before joining (anonymous)
        for group_name in getattr(self, "group_names", []):
            await self.channel_layer.group_discard(group_name, self.channel_name)

    async def submission_updated(self, event):
        submission_data = event["submission"]
        await self.send(text_data=json.dumps(submission_data))

    async def submission_file_updated(self, event):
        file_data = event["file"]
        await self.send(text_data=json.dumps(file_data))

    async def submission_crop_updated(self, event):
        crop_data = event["crop"]
        await self.send(text_data=json.dumps(crop_data))

    async def submission_crop_deleted(self, event):
        await self.send(text_data=json.dumps({"deleted_crop": event["crop"]}))

    async def scope_updated(self, event):
        await self.send(text_data=json.dumps({"scope": event["scope"]}))