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100 lines
3.6 KiB
100 lines
3.6 KiB
import os
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from datetime import datetime
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from tempfile import TemporaryDirectory
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import pytz
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from django.conf import settings
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from django.db import models, transaction
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from pyrogram.types import Chat as PyrogramChat, Message as PyrogramMessage
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class AggregationSource(models.Model):
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owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
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title = models.CharField(max_length=64)
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chat_id = models.BigIntegerField(db_index=True)
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def __str__(self):
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return self.title
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class Chat(models.Model):
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chat_id = models.BigIntegerField(db_index=True)
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title = models.TextField()
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username = models.CharField(max_length=64, null=True, blank=True)
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photo = models.ImageField(null=True, blank=True)
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photo_id = models.CharField(max_length=64, null=True, blank=True)
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@classmethod
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def from_obj(cls, chat: PyrogramChat, client):
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from aggregator.tasks import collect_new_messages
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obj, created = Chat.objects.update_or_create(
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chat_id=chat.id,
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defaults={
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'title': chat.title or '{} {}'.format(chat.first_name, chat.last_name).rstrip(),
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'username': chat.username,
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}
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)
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if chat.photo is None:
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if obj.photo_id is not None:
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obj.photo = obj.photo_id = None
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obj.save()
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else:
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photo_file_id = chat.photo.small_file_id
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if photo_file_id != obj.photo_id:
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with TemporaryDirectory() as d:
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path = client.download_media(photo_file_id, os.path.join(d, ''), block=True)
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with open(path, 'rb') as f:
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obj.photo.save(os.path.basename(path), f, save=True)
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obj.photo_id = chat.photo.small_file_id
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obj.save()
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if created:
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transaction.on_commit(lambda: collect_new_messages.delay(obj.pk))
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return obj
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def __str__(self):
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return '{} (chat_id="{}")'.format(self.title, self.chat_id)
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class MessageManager(models.Manager):
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def active_messages(self):
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return self.get_queryset().filter(deleted=False, replaced_by__isnull=True)
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class Message(models.Model):
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chat = models.ForeignKey(Chat, on_delete=models.CASCADE, related_name='messages')
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message_id = models.PositiveIntegerField(db_index=True)
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text = models.TextField(blank=True)
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date = models.DateTimeField()
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edit_date = models.DateTimeField(null=True, blank=True)
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deleted = models.BooleanField(default=False)
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replaced_by = models.ForeignKey('self', on_delete=models.CASCADE, null=True, blank=True)
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objects = MessageManager()
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@classmethod
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def from_obj(cls, message: PyrogramMessage, client):
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tz = pytz.timezone('UTC')
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chat = Chat.from_obj(message.chat, client)
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try:
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old = Message.objects.active_messages().get(chat=chat, message_id=message.message_id)
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except Message.DoesNotExist:
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old = None
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obj = Message.objects.create(
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chat=chat,
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message_id=message.message_id,
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text=message.text.html if message.text else '',
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date=tz.localize(datetime.utcfromtimestamp(message.date)),
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edit_date=tz.localize(datetime.utcfromtimestamp(message.edit_date)) if message.edit_date else None,
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)
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if old is not None:
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old.replaced_by = obj
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old.save()
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return obj
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def __str__(self):
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return 'id="{}" (chat_id="{}")'.format(self.message_id, self.chat.chat_id)
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class Meta:
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ordering = 'message_id', 'edit_date',
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