chat qo'shildi

core/apps/chat/serializers/chat/ChatMessage.py

@@ -0,0 +1,75 @@
+from rest_framework import serializers
+
+from core.apps.chat.models import ChatmessageModel
+
+
+class BaseChatmessageSerializer(serializers.ModelSerializer):
+    sender = serializers.SerializerMethodField()
+    file_url = serializers.SerializerMethodField()
+
+    def get_sender(self, obj):
+        if obj.sender is None:
+            return None
+        full_name = obj.sender.get_full_name().strip()
+        if not full_name:
+            full_name = str(obj.sender.phone)
+        return {
+            "id": obj.sender.id,
+            "full_name": full_name,
+            "role": obj.sender.role,
+        }
+
+    def get_file_url(self, obj):
+        if not obj.file:
+            return None
+        request = self.context.get("request")
+        if request:
+            return request.build_absolute_uri(obj.file.url)
+        return obj.file.url
+
+    class Meta:
+        model = ChatmessageModel
+        fields = [
+            "id",
+            "room",
+            "sender",
+            "message_type",
+            "text",
+            "file_url",
+            "is_read",
+            "created_at",
+        ]
+
+
+class ListChatmessageSerializer(BaseChatmessageSerializer):
+    class Meta(BaseChatmessageSerializer.Meta): ...
+
+
+class RetrieveChatmessageSerializer(BaseChatmessageSerializer):
+    class Meta(BaseChatmessageSerializer.Meta): ...
+
+
+class CreateChatmessageSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ChatmessageModel
+        fields = [
+            "room",
+            "message_type",
+            "text",
+            "file",
+        ]
+
+    def validate(self, attrs):
+        message_type = attrs.get("message_type", "text")
+        text = attrs.get("text", "").strip() if attrs.get("text") else ""
+        file = attrs.get("file")
+
+        if message_type == "text" and not text:
+            raise serializers.ValidationError({"text": "Matn xabari uchun text majburiy."})
+        if message_type != "text" and not file:
+            raise serializers.ValidationError({"file": f"{message_type} xabari uchun fayl majburiy."})
+        return attrs
+
+    def create(self, validated_data):
+        validated_data["sender"] = self.context["request"].user
+        return super().create(validated_data)