Saving deleted data from left servers.

.gitignore

@@ -133,4 +133,5 @@ nextcord.log
 # data file for bot
 highscores_data.json
 highscores_message_map.json
-highscores_config.json
+highscores_config.json
+deleted_backups/

cogs/guild_listener/__init__.py

@@ -2,6 +2,9 @@
 Defines cog for guild listeners. Contains functions for various guild events.
 """
 
+import os
+import json
+
 from nextcord.ext import commands
 import nextcord
 
@@ -24,7 +27,8 @@ class GuildListener(commands.Cog, name="Guild Listener"):
         save_highscores_data(highscores_data)
 
         welcome_message: str = "Hello, I keep track of Highscores for you!"
-        welcome_message += " Currently only supporting RuneScape boss highscores, but will be more dynamic support in future."
+        welcome_message += " Currently only supporting RuneScape boss highscores,"
+        welcome_message += " but will be more dynamic support in future."
         welcome_message += ' For assistance on getting started, use "?register help".'
 
         await guild.system_channel.send(content=welcome_message)
@@ -33,9 +37,15 @@ class GuildListener(commands.Cog, name="Guild Listener"):
     async def on_guild_remove(self, guild: nextcord.Guild):
         """Listener for Guild Remove. Removes data from highscores_data."""
         print(f"Removing data for guild {guild.name} (id {guild.id}).")
-        highscores_data.pop(str(guild.id))
+        old_data = highscores_data.pop(str(guild.id))
         save_highscores_data(highscores_data)
 
+        if not os.path.exists("deleted_backups"):
+            os.mkdir("deleted_backups")
+
+        with open(f"deleted_backups/{guild.name}_backup.json", encoding="utf-8", mode="w") as file:
+            file.write(json.dumps(old_data, indent=4))
+
 
 # This function will be called when this extension is loaded.
 # It is necessary to add these functions to the bot.