export function createOptimizedPicture()

in scripts/lib-franklin.js [510:542]

• 28 lines of code
• 5 McCabe index (conditional complexity)

export function createOptimizedPicture(src, alt = '', eager = false, breakpoints = [{ media: '(min-width: 600px)', width: '2000' }, { width: '750' }]) {
  const url = new URL(src, window.location.href);
  const picture = document.createElement('picture');
  const { pathname } = url;
  const ext = pathname.substring(pathname.lastIndexOf('.') + 1);

  // webp
  breakpoints.forEach((br) => {
    const source = document.createElement('source');
    if (br.media) source.setAttribute('media', br.media);
    source.setAttribute('type', 'image/webp');
    source.setAttribute('srcset', `${pathname}?width=${br.width}&format=webply&optimize=medium`);
    picture.appendChild(source);
  });

  // fallback
  breakpoints.forEach((br, i) => {
    if (i < breakpoints.length - 1) {
      const source = document.createElement('source');
      if (br.media) source.setAttribute('media', br.media);
      source.setAttribute('srcset', `${pathname}?width=${br.width}&format=${ext}&optimize=medium`);
      picture.appendChild(source);
    } else {
      const img = document.createElement('img');
      img.setAttribute('loading', eager ? 'eager' : 'lazy');
      img.setAttribute('alt', alt);
      picture.appendChild(img);
      img.setAttribute('src', `${pathname}?width=${br.width}&format=${ext}&optimize=medium`);
    }
  });

  return picture;
}