"""
Plugin to check Telegram username availability using the userbot.
Command: /checkusername <username>
"""

from pyrogram import Client, filters
from pyrogram.types import Message

@Client.on_message(filters.command(["checkusername", "checkuser", "username"], prefixes=["/", "!"]) & filters.me)
async def check_username_handler(client: Client, message: Message):
    if len(message.command) < 2:
        await message.reply_text("Please provide a username to check. Usage: /checkusername <username>")
        return
    username = message.command[1].strip().lower().replace("@", "")
    try:
        available = await client.check_username(username)
        if available:
            await message.reply_text(f"✅ The username '@{username}' is available!")
        else:
            await message.reply_text(f"❌ The username '@{username}' is already taken.")
    except Exception as e:
        await message.reply_text(f"⚠️ Error checking username: {e}")