from aiogram import Router
from aiogram.filters import CommandObject, CommandStart
from aiogram.types import Message

from app.services.user_service import UserService

router = Router(name="start")


@router.message(CommandStart())
async def cmd_start(
    message: Message,
    command: CommandObject,
    user_service: UserService,
) -> None:
    if message.from_user is None:
        return

    await user_service.ensure_user(
        telegram_id=message.from_user.id,
        username=message.from_user.username,
        first_name=message.from_user.first_name,
        start_payload=command.args,
    )

    lines = [
        'Welcome to <b>MaleniaVPN</b> — <a href="https://malenia.space">malenia.space</a>',
        "",
        "Your account is linked. VPN controls and billing will appear here as we ship them.",
    ]
    if command.args:
        lines.append("")
        lines.append(
            "<i>Referral link detected; attribution is stored for when rewards go live.</i>"
        )

    await message.answer("\n".join(lines), parse_mode="HTML")