UPDATE

farm_ai_assistant/serializers.py

@@ -1,35 +1,54 @@
 from rest_framework import serializers
 
-from .models import Conversation, Message
+from .models import Message
 
 
-class ConversationListSerializer(serializers.ModelSerializer):
-    conversation_id = serializers.UUIDField(source="uuid", read_only=True)
-
-    class Meta:
-        model = Conversation
-        fields = [
-            "conversation_id",
-            "title",
-            "updated_at",
-        ]
+class ChatSectionSerializer(serializers.Serializer):
+    type = serializers.ChoiceField(choices=["text", "list", "recommendation", "warning"])
+    title = serializers.CharField(required=False, allow_blank=True)
+    content = serializers.CharField(required=False, allow_blank=True)
+    items = serializers.ListField(child=serializers.CharField(), required=False)
+    icon = serializers.CharField(required=False, allow_blank=True)
+    frequency = serializers.CharField(required=False, allow_blank=True)
+    amount = serializers.CharField(required=False, allow_blank=True)
+    timing = serializers.CharField(required=False, allow_blank=True)
+    expandableExplanation = serializers.CharField(required=False, allow_blank=True)
 
 
-class MessageSerializer(serializers.ModelSerializer):
-    message_id = serializers.UUIDField(source="uuid", read_only=True)
-    conversation_id = serializers.UUIDField(source="conversation.uuid", read_only=True)
+class ConversationSummarySerializer(serializers.Serializer):
+    id = serializers.UUIDField(source="uuid", read_only=True)
+    message_count = serializers.IntegerField(read_only=True)
 
-    class Meta:
-        model = Message
-        fields = [
-            "message_id",
-            "conversation_id",
-            "role",
-            "content",
-            "images",
-            "raw_response",
-            "created_at",
-        ]
+
+class ConversationCreateSerializer(serializers.Serializer):
+    title = serializers.CharField(required=False, allow_blank=True, max_length=255)
+    farm_context = serializers.JSONField(required=False)
+
+
+class ChatHistoryMessageSerializer(serializers.Serializer):
+    message_id = serializers.UUIDField(read_only=True)
+    conversation_id = serializers.UUIDField(read_only=True)
+    role = serializers.ChoiceField(choices=Message.ROLE_CHOICES, read_only=True)
+    content = serializers.CharField(read_only=True, allow_blank=True)
+    sections = ChatSectionSerializer(many=True, read_only=True)
+    images = serializers.ListField(child=serializers.CharField(), read_only=True)
+    created_at = serializers.DateTimeField(read_only=True)
+
+
+class ConversationMessagesSerializer(serializers.Serializer):
+    conversation_id = serializers.UUIDField(read_only=True)
+    messages = ChatHistoryMessageSerializer(many=True, read_only=True)
+
+
+class ChatResponseDataSerializer(serializers.Serializer):
+    message_id = serializers.UUIDField(read_only=True)
+    conversation_id = serializers.UUIDField(read_only=True)
+    content = serializers.CharField(read_only=True, allow_blank=True)
+    sections = ChatSectionSerializer(many=True, read_only=True)
+
+
+class ConversationDeleteSerializer(serializers.Serializer):
+    conversation_id = serializers.UUIDField(read_only=True)
 
 
 class ChatPostSerializer(serializers.Serializer):
@@ -42,3 +61,10 @@ class ChatPostSerializer(serializers.Serializer):
     conversation_id = serializers.UUIDField(required=False)
     title = serializers.CharField(required=False, allow_blank=True, max_length=255)
     farm_context = serializers.JSONField(required=False)
+
+    def validate(self, attrs):
+        content = attrs.get("content", "").strip()
+        images = attrs.get("images") or []
+        if not content and not images:
+            raise serializers.ValidationError("Either content or images is required.")
+        return attrs