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---
export interface Props {
  /** Page URL (defaults to current page) */
  url?: string;
  /** Page title */
  title?: string;
}

const { url, title } = Astro.props;
const pageUrl = url ?? Astro.url.href;
const pageTitle = title ?? "";

const encodedUrl = encodeURIComponent(pageUrl);
const encodedTitle = encodeURIComponent(pageTitle);

const SHARE_LINKS = [
  {
    label: "X",
    href: `https://x.com/intent/tweet?url=${encodedUrl}&text=${encodedTitle}`,
    svg: '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4 4l11.733 16h4.267l-11.733-16z"/><path d="M4 20l6.768-6.768m2.46-2.46L20 4"/></svg>',
  },
  {
    label: "Facebook",
    href: `https://www.facebook.com/sharer/sharer.php?u=${encodedUrl}`,
    svg: '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M18 2h-3a5 5 0 0 0-5 5v3H7v4h3v8h4v-8h3l1-4h-4V7a1 1 0 0 1 1-1h3z"/></svg>',
  },
  {
    label: "LINE",
    href: `https://social-plugins.line.me/lineit/share?url=${encodedUrl}`,
    svg: '<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M2 12h2"/><path d="M6 8v8"/><path d="M10 6v12"/><path d="M14 9.5V20"/><path d="M18 6v12"/><path d="M22 8v8"/></svg>',
  },
];
---

<div class="social-share">
  <span class="social-share-label">Share:</span>
  {SHARE_LINKS.map((link) => (
    <a
      href={link.href}
      target="_blank"
      rel="noopener noreferrer"
      class="social-share-btn"
      title={`${link.label}で共有`}
    >
      <span set:html={link.svg} />
    </a>
  ))}
</div>

<style>
  @layer starlight.core {
    .social-share {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-top: 2rem;
      padding-top: 1rem;
      border-top: 1px solid var(--sl-color-gray-5);
    }
    .social-share-label {
      font-size: 0.85rem;
      color: var(--sl-color-gray-2);
    }
    .social-share-btn {
      color: var(--sl-color-gray-2);
      padding: 0.35rem;
      border-radius: 4px;
      transition: color 0.2s, background 0.2s;
      display: flex;
      align-items: center;
    }
    .social-share-btn:hover {
      color: var(--sl-color-white);
      background: var(--sl-color-gray-5);
    }
  }
</style>