---
import versions from '../data/docs-versions.json';
import { docsRoute, docsTargetHref } from '../docs-path';

const route = docsRoute(Astro.url.pathname);
const locale = route.locale ?? 'root';
const labels = {
  root: { accessible: 'Documentation version', latest: 'Latest', next: 'Unreleased' },
  ja: { accessible: 'ドキュメントのバージョン', latest: '最新', next: '未リリース' },
  'zh-cn': { accessible: '文档版本', latest: '最新', next: '未发布' },
}[locale];
const scopes = versions.scopes;
---

{route.isDocs && (
  <label class="docs-version-select">
    <span class="sr-only">{labels.accessible}</span>
    <select autocomplete="off" aria-label={labels.accessible}>
      <option
        value={docsTargetHref(route, 'stable', scopes)}
        selected={route.target === 'stable'}
      >
        {labels.latest}{' '}{versions.current}
      </option>
      <option
        value={docsTargetHref(route, 'preview', scopes)}
        selected={route.target === 'preview'}
      >
        {labels.next}
      </option>
      {versions.versions
        .filter((entry) => entry.version !== versions.current || route.target === versions.current)
        .map((entry) => (
          <option
            value={docsTargetHref(route, entry.version, scopes)}
            selected={route.target === entry.version}
          >
            {entry.version}
          </option>
        ))}
    </select>
  </label>
)}

<script>
  for (const select of document.querySelectorAll<HTMLSelectElement>('.docs-version-select select')) {
    select.addEventListener('change', () => {
      globalThis.location.href = select.value;
    });
  }
</script>

<style>
  .docs-version-select {
    display: flex;
    min-width: 0;
  }

  select {
    width: 9.5rem;
    min-width: 0;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 4px;
    padding: 0.4rem 1.6rem 0.4rem 0.55rem;
    background: var(--sl-color-bg-nav);
    color: var(--sl-color-gray-2);
    font: inherit;
    font-size: var(--sl-text-xs);
    font-weight: 700;
    text-overflow: ellipsis;
  }

  select:hover,
  select:focus {
    border-color: var(--sl-color-accent);
    color: var(--sl-color-accent-high);
  }

  @media (max-width: 38rem) {
    select {
      width: 7.5rem;
    }
  }
</style>