feat(bot): support backfilling RSS feed history

Added the ability to backfill messages from an RSS feed upon adding it to a room. Users can now add the `--backfill` flag when using the `addfeed` command to retrieve and post historical entries from the feed. This enhancement improves user experience by ensuring no important feed information is missed.

pyproject.toml

@@ -7,7 +7,7 @@ allow-direct-references = true
 
 [project]
 name = "matrix-rssbot"
-version = "0.1.4"
+version = "0.1.5"
 
 authors = [{ name = "Private.coffee Team", email = "support@private.coffee" }]
 

src/matrix_rssbot/classes/bot.py

@@ -582,6 +582,19 @@ class RSSBot:
             ) < self.loop_duration:
                 await asyncio.sleep(self.loop_duration - time_taken)
 
+    async def backfill_feed(self, room: MatrixRoom, url: str):
+        self.logger.log(f"Backfilling feed {url} in room {room.room_id}", "debug")
+
+        feed_content = await self.fetch_feed(url)
+
+        for entry in feed_content.entries:
+            entry_message = f"__{feed_content.feed.title}: {entry.title}__\n\n{entry.description}\n\n{entry.link}"
+            await self.send_message(
+                room,
+                entry_message,
+                (await self.get_event_type_for_room(room)) == "notice",
+            )
+
     async def run(self):
         """Start the bot."""
 

src/matrix_rssbot/classes/commands/addfeed.py

@@ -8,7 +8,24 @@ import feedparser
 
 
 async def command_addfeed(room: MatrixRoom, event: RoomMessageText, bot):
-    url = event.body.split()[2]
+    args = event.body.split()[2:]
+
+    if not args:
+        await bot.send_message(room, "Please provide a feed URL to add.", True)
+        return
+
+    if "--backfill" in args:
+        backfill = True
+        args.remove("--backfill")
+
+    else:
+        backfill = False
+
+    if len(args) != 1:
+        await bot.send_message(room, "Please provide only one feed URL.", True)
+        return
+
+    url = args[0]
 
     bot.logger.log(f"Adding new feed to room {room.room_id}")
 
@@ -67,6 +84,16 @@ async def command_addfeed(room: MatrixRoom, event: RoomMessageText, bot):
             return
 
         await bot.send_message(room, f"Added {url} to this room's feeds.", True)
+
+        if backfill:
+            await bot.send_message(
+                room,
+                "Backfilling messages from the feed. This may take a while, depending on the feed size.",
+                True,
+            )
+
+            await bot.backfill_feed(room, url)
+
     except Exception as e:
         await bot.send_message(
             room, "Sorry, something went wrong. Please try again.", True