---
// Remove current url path and remove trailing slash if exists
const currentUrlPath = Astro.url.pathname.replace(/\/+$/, "");

// Get url array from path
// eg: /tags/tailwindcss => ['tags', 'tailwindcss']
const breadcrumbList = currentUrlPath.split("/").slice(1);

// if breadcrumb is Home > Posts > 1 <etc>
// replace Posts with Posts (page number)
if (
  (breadcrumbList[0] === "posts" && !isNaN(Number(breadcrumbList[1]))) ||
  (breadcrumbList[0] === "posts" && breadcrumbList.length < 2)
) {
  breadcrumbList.splice(
    0,
    2,
    `Posts (page ${breadcrumbList[1] ? breadcrumbList[1] : 1})`
  );
}
---

<nav class="breadcrumb" aria-label="breadcrumb">
  <ul>
    <li><a href="/">Home</a></li>
    {
      breadcrumbList.map((breadcrumb, index) => (
        <li>
          {index + 1 === breadcrumbList.length ? (
            <span class={`${index > 0 ? "lowercase" : ""}`} aria-current="page">
              {breadcrumb}
            </span>
          ) : (
            <a href={`/${breadcrumb}`}>{breadcrumb}</a>
          )}
        </li>
      ))
    }
  </ul>
</nav>

<style>
  .breadcrumb {
    @apply max-w-3xl mx-auto px-4 w-full mt-8 mb-1;
  }
  .breadcrumb ul li {
    @apply inline opacity-70 capitalize;
  }
  .breadcrumb ul li + li {
    @apply text-skin-base before:content-[">"];
  }
  .breadcrumb ul li:not(:last-child) {
    @apply hover:opacity-100 hover:before:opacity-70;
  }
</style>