feat: Add MessageScraperCog to scrape and export messages from a channel

cogs/message_scraper_cog.py

@@ -0,0 +1,55 @@
+import discord
+from discord.ext import commands
+import io
+
+class MessageScraperCog(commands.Cog):
+    def __init__(self, bot):
+        self.bot = bot
+
+    @commands.command(name="scrape_messages")
+    @commands.is_owner()
+    async def scrape_messages(self, ctx, limit: int = 100):
+        """
+        Scrapes the last N messages from the current channel, excluding bots,
+        and includes reply information. Uploads the results as a .txt file.
+        """
+        if limit > 500:
+            return await ctx.send("Please keep the limit under 500 messages to avoid rate limits.")
+
+        messages_data = []
+        async for message in ctx.channel.history(limit=limit):
+            if message.author.bot:
+                continue
+
+            reply_info = ""
+            if message.reference and message.reference.message_id:
+                try:
+                    replied_message = await ctx.channel.fetch_message(message.reference.message_id)
+                    reply_info = f" (In reply to: '{replied_message.author.display_name}: {replied_message.content[:50]}...')"
+                except discord.NotFound:
+                    reply_info = " (In reply to: [Original message not found])"
+                except discord.HTTPException:
+                    reply_info = " (In reply to: [Could not fetch original message])"
+
+            messages_data.append(
+                f"[{message.created_at.strftime('%Y-%m-%d %H:%M:%S')}] "
+                f"{message.author.display_name} ({message.author.id}): "
+                f"{message.content}{reply_info}"
+            )
+
+        if not messages_data:
+            return await ctx.send("No messages found matching the criteria.")
+
+        output_content = "\n".join(messages_data)
+        
+        # Create a file-like object from the string content
+        file_data = io.BytesIO(output_content.encode('utf-8'))
+        
+        # Send the file
+        await ctx.send(
+            f"Here are the last {len(messages_data)} messages from this channel (excluding bots):",
+            file=discord.File(file_data, filename="scraped_messages.txt")
+        )
+
+async def setup(bot):
+    await bot.add_cog(MessageScraperCog(bot))