// Clipboard write that works on plain-HTTP self-hosted deployments.
//
// navigator.clipboard is gated by the browser's Secure Context restriction
// (HTTPS or localhost only). FabledCurator runs over plain HTTP per the
// homelab posture, so the modern API is undefined in production. We fall
// back to the legacy execCommand('copy') path via a temporary off-screen
// textarea — wide browser support, no HTTPS requirement.

export async function copyText (text) {
  const str = text == null ? '' : String(text)
  if (typeof navigator !== 'undefined' && navigator.clipboard?.writeText) {
    try {
      await navigator.clipboard.writeText(str)
      return
    } catch {
      // Fall through to the legacy path. Some browsers throw even when
      // the API exists (permission denied, focus loss, etc.).
    }
  }
  const ta = document.createElement('textarea')
  ta.value = str
  ta.setAttribute('readonly', '')
  ta.style.position = 'fixed'
  ta.style.top = '0'
  ta.style.left = '0'
  ta.style.opacity = '0'
  ta.style.pointerEvents = 'none'
  document.body.appendChild(ta)
  ta.select()
  ta.setSelectionRange(0, str.length)
  let ok = false
  try { ok = document.execCommand('copy') } catch { ok = false }
  document.body.removeChild(ta)
  if (!ok) throw new Error('clipboard copy not supported')
}