export interface TelegramWebAppUser {
  id: number
  first_name?: string
  username?: string
  language_code?: string
}

export interface TelegramWebApp {
  initData: string
  initDataUnsafe?: {
    user?: TelegramWebAppUser
  }
  ready?: () => void
  expand?: () => void
}

declare global {
  interface Window {
    Telegram?: {
      WebApp?: TelegramWebApp
    }
  }
}

export function getTelegramWebApp(): TelegramWebApp | undefined {
  if (typeof window === 'undefined') {
    return undefined
  }

  return window.Telegram?.WebApp
}