Fix for download comparison

llmkernel/kernel.py

@@ -1,12 +1,22 @@
-import time
+import copy
+import datetime
+import io
 import json
+import logging
+import os
+import requests
+import tempfile
+import time
 import traceback
+import pandas as pd
 
 from ipykernel.kernelbase import Kernel
 from ipykernel.ipkernel import IPythonKernel
 from toolsets.dataset_toolset import DatasetToolset
 from archytas.react import ReActAgent
 
+logger = logging.getLogger(__name__)
+
 class PythonLLMKernel(IPythonKernel):
     implementation = "askem-chatty-py"
     implementation_version = "0.1"
@@ -29,6 +39,8 @@ def setup_instance(self, *args, **kwargs):
         self.context = None
         self.msg_types.append("context_setup_request")
         self.msg_types.append("llm_request")
+        self.msg_types.append("download_dataset_request")
+        self.msg_types.append("save_dataset_request")
         return super().setup_instance(*args, **kwargs)
 
 
@@ -48,7 +60,6 @@ def set_context(self, context, context_info):
 
 
     def send_df_preview_message(self):
-        import pandas as pd
         df = self.shell.ev("df")
         if isinstance(df, pd.DataFrame):
             split_df = json.loads(df.head(30).to_json(orient="split"))
@@ -122,9 +133,88 @@ async def context_setup_request(self, queue, message_id, message, **kwargs):
                 "execution_state": "idle",
             },
             channel="iopub"
+        )
+
+
+    async def download_dataset_request(self, queue, message_id, message, **kwargs):
+        content = message.get('content', {})
+        # TODO: Collect any options that might be needed, if they ever are
+
+        df = self.shell.ev("df")
+        if isinstance(df, pd.DataFrame):
+            output_buff = io.BytesIO()
+            df.to_csv(output_buff, index=False, header=True)
+            output_buff.seek(0)
+            self.send_response(self.iopub_socket, "download_response", {"data": output_buff})
+        else:
+            self.send_response(self.iopub_socket, "stream", {"name": "stderr", "text": "The dataframe is not able to be downloaded."})
+
 
+    async def save_dataset_request(self, queue, message_id, message, **kwargs):
+        self.send_response(
+            stream=self.iopub_socket,
+            msg_or_type="status",
+            content={
+                "execution_state": "busy",
+            },
+            channel="iopub"
         )
+        df = self.shell.ev('df')
+        content = message.get('content', {})
+
+        parent_dataset_id = content.get("parent_dataset_id")
+        new_name = content.get("name")
+        filename = content.get("filename", None)
+
+
+        if filename is None:
+            filename = "dataset.csv"
+        parent_url = f"{os.environ['DATA_SERVICE_URL']}/datasets/{parent_dataset_id}"
+        parent_dataset = requests.get(parent_url).json()
+        if not parent_dataset:
+            raise Exception(f"Unable to locate parent dataset '{parent_dataset_id}'")
+
+        new_dataset = copy.deepcopy(parent_dataset)
+        del new_dataset["id"]
+        new_dataset["name"] = new_name
+        new_dataset["description"] += f"\nTransformed from dataset '{parent_dataset['name']}' ({parent_dataset['id']}) at {datetime.datetime.utcnow().strftime('%c %Z')}"
+        new_dataset["file_names"] = [filename]
+
+        create_req = requests.post(f"{os.environ['DATA_SERVICE_URL']}/datasets", json=new_dataset)
+        new_dataset_id = create_req.json()["id"]
+
+        new_dataset["id"] = new_dataset_id
+        new_dataset_url = f"{os.environ['DATA_SERVICE_URL']}/datasets/{new_dataset_id}"
+        data_url_req = requests.get(f'{new_dataset_url}/upload-url?filename={filename}')
+        data_url = data_url_req.json().get('url', None)
+
+        # Saving as a temporary file instead of a buffer to save memory
+        with tempfile.TemporaryFile() as temp_csv_file:
+            df.to_csv(temp_csv_file, index=False, header=True)
+            temp_csv_file.seek(0)
+            upload_response = requests.put(data_url, data=temp_csv_file)
+        if upload_response.status_code != 200:
+            raise Exception(f"Error uploading dataframe: {upload_response.content}")
 
+        self.send_response(
+            stream=self.iopub_socket,
+            msg_or_type="save_dataset_response",
+            content={
+                "dataset_id": new_dataset_id,
+                "filename": filename,
+                "parent_dataset_id": parent_dataset_id
+            },
+            channel="iopub",
+        )
+        self.send_response(
+            stream=self.iopub_socket,
+            msg_or_type="status",
+            content={
+                "execution_state": "idle",
+            },
+            channel="iopub"
+        )
+
     async def do_execute(self, code, silent, store_history=True, user_expressions=None, allow_stdin=False, *, cell_id=None):
         result = await super().do_execute(code, silent, store_history, user_expressions, allow_stdin, cell_id=cell_id)
         self.send_df_preview_message()

toolsets/dataset_toolset.py

@@ -48,9 +48,6 @@ def reset(self):
         self.dataset_id = None
         self.df = None
 
-    def send_dataset(self):
-        pass
-
     def context(self):
         return f"""You are an analyst whose goal is to help with scientific data analysis and manipulation in Python.