// Links that leave the site open in a new tab, so the reader never loses the
// page: WhatsApp, LinkedIn, the photo credits. Everything else stays put —
// in-page anchors (#contacto) obviously, and mailto: too, which hands off to
// the mail client and would only leave an empty tab behind.
//
// `rel="noopener noreferrer"`: without noopener the opened page gets a handle
// on this one through window.opener.

export function esExterno(href: string): boolean {
  return /^https?:\/\//i.test(href);
}

export function propsEnlace(href: string) {
  return esExterno(href) ? ({ target: '_blank', rel: 'noopener noreferrer' } as const) : {};
}

// Screen-reader users get told before the context switch happens (WCAG G201);
// sighted readers see the new tab open.
export const AVISO_PESTANA = 'se abre en otra pestaña';