/**
 * blame.ts — interactivity for the code blame page.
 *
 * Registered as: window.MusePages['blame']
 */

export function initBlame(_data: Record<string, unknown>): void {
  // Line hash navigation: highlight target line on load and hash change
  function highlightTargetLine(): void {
    document.querySelectorAll<HTMLElement>('.blm-code-row--targeted').forEach((el) => {
      el.classList.remove('blm-code-row--targeted');
    });
    const hash = window.location.hash;
    if (!hash) return;
    const target = document.querySelector<HTMLElement>(hash);
    if (target && target.classList.contains('blm-code-row')) {
      target.classList.add('blm-code-row--targeted');
      target.scrollIntoView({ behavior: 'smooth', block: 'center' });
    }
  }

  highlightTargetLine();
  window.addEventListener('hashchange', highlightTargetLine);
}