/**
 * URL helpers for the Invite Friends share sheet (APP-2142).
 *
 * Every action (QR payload, share sheet, clipboard) and the displayed label
 * all derive from the same canonical `https://bsky.app/profile/{handle}` URL,
 * so what the user reads matches exactly what they copy/share. The displayed
 * label simply drops the `https://` scheme for readability.
 *
 * Kept as a dependency-free leaf module (no #/lib/strings/url-helpers import)
 * so its unit tests stay fast and isolated from the heavy @atproto/api graph.
 */

function stripLeadingAt(handle: string): string {
  return handle.startsWith('@') ? handle.slice(1) : handle
}

/** Canonical URL - used for QR payload, Share, and Copy. Empty handle -> empty string. */
export function getInviteShareUrl(handle: string): string {
  const bare = stripLeadingAt(handle)
  if (!bare) return ''
  return `https://bsky.app/profile/${bare}`
}

/**
 * Human-readable label shown in the "Invite link" field. This is the same
 * canonical URL as getInviteShareUrl with the `https://` scheme stripped, so
 * the displayed text always resolves and matches what Copy/Share use.
 */
export function getInviteDisplayUrl(handle: string): string {
  return getInviteShareUrl(handle).replace(/^https:\/\//, '')
}