chat qo'shildi

core/apps/chat/signals/chat.py

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+from asgiref.sync import async_to_sync
+from channels.layers import get_channel_layer
+from django.conf import settings
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+
+from core.apps.chat.models import ChatmessageModel, ChatroomModel
+
+
+@receiver(post_save, sender=ChatmessageModel)
+def broadcast_new_message(sender, instance, created, **kwargs):
+    """Yangi xabar saqlanganda xonadagi barcha WS ulanishlariga yuboradi."""
+    if not created:
+        return
+
+    channel_layer = get_channel_layer()
+    if channel_layer is None:
+        return
+
+    sender_obj = instance.sender
+    if sender_obj:
+        full_name = sender_obj.get_full_name().strip() or str(sender_obj.phone)
+        sender_data = {
+            "id": sender_obj.id,
+            "full_name": full_name,
+            "role": sender_obj.role,
+        }
+    else:
+        sender_data = None
+
+    site_url = getattr(settings, "SITE_URL", "").rstrip("/")
+    file_url = (site_url + instance.file.url) if instance.file else None
+
+    async_to_sync(channel_layer.group_send)(
+        f"chat_room_{instance.room_id}",
+        {
+            "type": "chat_message",
+            "id": instance.id,
+            "message_type": instance.message_type,
+            "text": instance.text,
+            "file_url": file_url,
+            "sender": sender_data,
+            "created_at": instance.created_at.isoformat(),
+        },
+    )
+
+
+@receiver(post_save, sender="evaluation.AutoEvaluationModel")
+def auto_create_chatroom(sender, instance, created, **kwargs):
+    """AutoEvaluation yaratilganda avtomatik chat xonasi ochiladi."""
+    if created:
+        ChatroomModel.objects.get_or_create(
+            auto_evaluation=instance,
+            defaults={"type": "auto_evaluation"},
+        )