Per-article summarization and preference matching

slack.py

@@ -1,52 +1,81 @@
 import logging
 import os
 
-from langchain_core.documents import Document
 from slack_sdk import WebClient
 from slack_sdk.errors import SlackApiError
 
 
-def prepare_message_blocks(stories: list[Document]) -> list:
-    blocks = []
-    for story in stories:
-        block = [
-            {
-                "type": "header",
-                "text": {"type": "plain_text", "text": story.metadata["title"]},
+def format_story(story: dict) -> list:
+    title_text = (
+        f"<{story['source_url']}|{story['title']}>"
+        if story["source_url"]
+        else story["title"]
+    )
+    return [
+        {
+            "type": "section",
+            "text": {
+                "type": "mrkdwn",
+                "text": f"*{title_text}*",
             },
-            {
-                "type": "context",
-                "elements": [
-                    {
-                        "type": "plain_text",
-                        "text": f"Categories: {', '.join(story.metadata.get('categories', []))}",
-                    },
-                ],
+        },
+        {
+            "type": "context",
+            "elements": [
+                {
+                    "type": "plain_text",
+                    "text": f"Categories: {', '.join(story['categories'])}"
+                    if story["categories"]
+                    else "No categories",
+                }
+            ],
+        },
+        {
+            "type": "section",
+            "text": {
+                "type": "mrkdwn",
+                "text": story["summary"],
             },
-            {
-                "type": "context",
-                "elements": [
-                    {
-                        "type": "plain_text",
-                        "text": f"Posted on: {story.metadata['created_at']}",
-                    }
-                ],
-            },
-            {"type": "section", "text": {"type": "mrkdwn", "text": story.page_content}},
-        ]
+        },
+    ]
+
+
+def format_slack_blocks(grouped_stories: dict[str, list[dict]]) -> list[dict]:
+    """Format grouped stories into Slack block format."""
+    blocks = []
+
+    # Header block
+    blocks.append(
+        {"type": "header", "text": {"type": "plain_text", "text": "🚀 Tech Updates"}}
+    )
+
+    # Add stories for each group
+    for group_name, stories in grouped_stories.items():
+        # Group section header
+        section_title = (
+            "*Other Stories*" if group_name == "Other" else f"*{group_name}*"
+        )
+        blocks.append(
+            {"type": "section", "text": {"type": "mrkdwn", "text": section_title}}
+        )
+
+        for story in stories:
+            blocks.extend(format_story(story))
+
+        # Add divider after each group (except the last one)
+        blocks.append({"type": "divider"})
 
-        blocks.append(block)
     return blocks
 
 
-def send_message(channel: str, text: str) -> None:
+def send_message(channel: str, blocks: list) -> None:
     client = WebClient(token=os.environ["SLACK_BOT_TOKEN"])
 
     try:
         response = client.chat_postMessage(
             channel=channel,
-            username="HN Ragandy",
-            text=text,
+            text="Tech updates",
+            blocks=blocks,
             unfurl_links=False,
         )
         response.validate()