Refactor command handling to use application commands and improve error handling

app.py

@@ -73,11 +73,14 @@ music_bot = MusicBot()
 @bot.event
 async def on_ready():
     print(f'Bot is ready! Logged in as {bot.user}')
+    print("Syncing commands...")
     try:
-        synced = await bot.tree.sync()
-        print(f"Synced {len(synced)} command(s)")
+        await bot.tree.sync(guild=None)  # Set to None for global sync
+        print("Successfully synced commands globally!")
+    except discord.app_commands.errors.CommandSyncFailure as e:
+        print(f"Failed to sync commands: {e}")
     except Exception as e:
-        print(e)
+        print(f"An error occurred while syncing commands: {e}")
 
 @bot.tree.command(name="play", description="Play a song from URL")
 async def play(interaction: discord.Interaction, url: str):
@@ -92,20 +95,26 @@ async def play(interaction: discord.Interaction, url: str):
     else:
         await interaction.followup.send('Added to queue!')
 
-@bot.command()
-async def skip(ctx):
+# Replace the existing skip command with this version
+@bot.tree.command(name="skip", description="Skip the current song")
+async def skip(interaction: discord.Interaction):
     if music_bot.voice_client:
         music_bot.voice_client.stop()
-        await ctx.send('Skipped current song!')
+        await interaction.response.send_message('Skipped current song!')
+    else:
+        await interaction.response.send_message('No song is currently playing!')
 
-@bot.command()
-async def leave(ctx):
+# Replace the existing leave command with this version
+@bot.tree.command(name="leave", description="Disconnect bot from voice channel")
+async def leave(interaction: discord.Interaction):
     if music_bot.voice_client:
         await music_bot.voice_client.disconnect()
         music_bot.voice_client = None
         music_bot.queue = []
         music_bot.is_playing = False
-        await ctx.send('Bot disconnected!')
+        await interaction.response.send_message('Bot disconnected!')
+    else:
+        await interaction.response.send_message('Bot is not in a voice channel!')
 
 def run_discord_bot():
     bot.run(os.getenv('DISCORD_TOKEN'))