nodejsdesignpatterns.com/src/Layout.astro at 6fb64e824f1f15ac6d82c1477bef6487612fe9ea · nodejs-design-patterns-book/nodejsdesignpatterns.com · GitHub

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---
import './styles/global.css'
import { Font } from 'astro:assets'
import Navigation from './components/Navigation.astro'
import ThemeSelector from './components/ThemeSelector.astro'
import {
  SITE_TITLE,
  SITE_DESCRIPTION,
  SITE_URL,
  OG_TITLE,
  OG_DESCRIPTION,
  OG_TYPE,
  OG_IMAGE,
  OG_IMAGE_ALT,
  TWITTER_CARD,
  TWITTER_SITE,
  TWITTER_CREATOR,
  BOOK_AUTHORS,
  THEME_COLOR,
} from '@lib/const'

export interface Props {
  title?: string
  description?: string
  ogTitle?: string
  ogDescription?: string
  ogImage?: string
  canonical?: string
  additionalSchema?: object | object[]
  noindex?: boolean
}

const {
  title = SITE_TITLE,
  description = SITE_DESCRIPTION,
  ogTitle = OG_TITLE,
  ogDescription = OG_DESCRIPTION,
  ogImage = OG_IMAGE,
  canonical,
  additionalSchema,
  noindex = false,
} = Astro.props
---

<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" />
    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
    <link rel="shortcut icon" href="/favicon.ico" />
    <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
    <meta name="apple-mobile-web-app-title" content="Node.js Design Patterns" />
    <link rel="manifest" href="/site.webmanifest" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="generator" content={Astro.generator} />

    <!-- Primary Meta Tags -->
    <title>{title}</title>
    <meta name="title" content={title} />
    <meta name="description" content={description} />
    <meta name="author" content={BOOK_AUTHORS} />
    <meta
      name="keywords"
      content="Node.js, Design Patterns, JavaScript, Backend Development, Software Architecture, Programming, Web Development, Scalable Applications"
    />
    {
      noindex ? (
        <meta name="robots" content="noindex, nofollow" />
      ) : (
        <meta name="robots" content="index, follow" />
      )
    }
    <meta name="theme-color" content={THEME_COLOR} />

    <!-- Canonical URL -->
    {canonical && <link rel="canonical" href={canonical} />}

    <!-- RSS Feed -->
    <link
      rel="alternate"
      type="application/rss+xml"
      title="Node.js Design Patterns - Blog"
      href="/rss.xml"
    />

    <!-- Sitemap -->
    <link rel="sitemap" href="/sitemap-index.xml" />

    <!-- Open Graph / Facebook -->
    <meta property="og:type" content={OG_TYPE} />
    <meta property="og:url" content={canonical} />
    <meta property="og:title" content={ogTitle} />
    <meta property="og:description" content={ogDescription} />
    <meta property="og:image" content={new URL(ogImage, SITE_URL)} />
    <meta property="og:image:alt" content={OG_IMAGE_ALT} />
    <meta property="og:site_name" content="Node.js Design Patterns" />
    <meta property="og:locale" content="en_US" />

    <!-- Twitter -->
    <meta property="twitter:card" content={TWITTER_CARD} />
    <meta property="twitter:url" content={canonical} />
    <meta property="twitter:title" content={ogTitle} />
    <meta property="twitter:description" content={ogDescription} />
    <meta property="twitter:image" content={new URL(ogImage, SITE_URL)} />
    <meta property="twitter:image:alt" content={OG_IMAGE_ALT} />
    <meta property="twitter:site" content={TWITTER_SITE} />
    <meta property="twitter:creator" content={TWITTER_CREATOR} />

    <!-- Book-specific structured data -->
    <script type="application/ld+json">
      {
        "@context": "https://schema.org",
        "@type": "Book",
        "name": "Node.js Design Patterns",
        "edition": "Fourth Edition",
        "author": [
          {
            "@type": "Person",
            "name": "Mario Casciaro"
          },
          {
            "@type": "Person",
            "name": "Luciano Mammino"
          }
        ],
        "publisher": {
          "@type": "Organization",
          "name": "Packt Publishing"
        },
        "datePublished": "2024-07-31",
        "isbn": "9781803238944",
        "numberOfPages": 660,
        "description": "The definitive guide to Node.js patterns and best practices. Learn proven techniques for building scalable, maintainable applications.",
        "url": "https://nodejsdesignpatterns.com",
        "image": "https://nodejsdesignpatterns.com/images/og-image.png",
        "aggregateRating": {
          "@type": "AggregateRating",
          "ratingValue": 4.6,
          "bestRating": 5,
          "ratingCount": 780
        }
      }
    </script>

    {
      additionalSchema &&
        (Array.isArray(additionalSchema) ? (
          additionalSchema.map((schema) => (
            <script
              type="application/ld+json"
              set:html={JSON.stringify(schema)}
            />
          ))
        ) : (
          <script
            type="application/ld+json"
            set:html={JSON.stringify(additionalSchema)}
          />
        ))
    }

    <script>
      import { initTheme } from './lib/theme.ts'
      initTheme()
    </script>

    <!-- Global Analytics: Outbound Link Tracking -->
    <script>
      import {
        trackClickOutboundLink,
        isExternalUrl,
        extractDomain,
        getPagePath,
      } from './lib/analytics.ts'

      function initOutboundLinkTracking() {
        document.addEventListener('click', (event) => {
          const target = event.target as HTMLElement
          const link = target.closest('a')

          if (!link) return

          const href = link.getAttribute('href')
          if (!href) return

          // Only track external links
          if (!isExternalUrl(href)) return

          // Don't track if it's a buy button (already tracked separately)
          if (link.hasAttribute('data-analytics-format')) return

          trackClickOutboundLink({
            link_url: href,
            link_domain: extractDomain(href),
            link_text: link.textContent?.trim().slice(0, 100) || '',
            source_page: getPagePath(),
          })
        })
      }

      // Initialize when DOM is ready
      if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', initOutboundLinkTracking)
      } else {
        initOutboundLinkTracking()
      }
    </script>

    <!-- Global Analytics: Internal Navigation Tracking -->
    <script>
      import {
        trackInternalNavigation,
        isExternalUrl,
        getPagePath,
        type NavigationType,
      } from './lib/analytics.ts'

      function initInternalNavigationTracking() {
        const currentPath = getPagePath()

        document.addEventListener('click', (event) => {
          const target = event.target as HTMLElement
          const link = target.closest('a')

          if (!link) return

          const href = link.getAttribute('href')
          if (!href) return

          // Only track internal links
          if (isExternalUrl(href)) return

          // Skip anchor links on same page
          if (href.startsWith('#')) return

          // Skip if it's a buy button (already tracked)
          if (link.hasAttribute('data-analytics-format')) return

          // Determine navigation type based on element location
          let navigationType: NavigationType = 'inline_link'

          const nav = link.closest('nav')
          const header = link.closest('header')
          const footer = link.closest('footer')

          if (nav || header) {
            navigationType = 'header_link'
          } else if (footer) {
            navigationType = 'footer_link'
          }

          // Get the destination path
          let toPage = href
          try {
            const url = new URL(href, window.location.origin)
            toPage = url.pathname
          } catch {
            // Keep original href if URL parsing fails
          }

          trackInternalNavigation({
            from_page: currentPath,
            to_page: toPage,
            navigation_type: navigationType,
          })
        })
      }

      // Initialize when DOM is ready
      if (document.readyState === 'loading') {
        document.addEventListener(
          'DOMContentLoaded',
          initInternalNavigationTracking,
        )
      } else {
        initInternalNavigationTracking()
      }
    </script>
    <Font cssVariable="--font-base-sans" preload />
    <Font cssVariable="--font-base-serif" preload />
    <Font cssVariable="--font-base-mono" preload />

    <!-- Google tag (gtag.js) -->
    <script
      is:inline
      type="text/partytown"
      src="https://www.googletagmanager.com/gtag/js?id=G-NFE37ZH2W3"></script>
    <script is:inline type="text/partytown">
      window.dataLayer = window.dataLayer || []
      function gtag() {
        // eslint-disable-next-line no-undef
        dataLayer.push(arguments)
      }
      gtag('js', new Date())
      // Disable all tracking by default
      gtag('consent', 'default', {
        ad_storage: 'denied',
        ad_user_data: 'denied',
        ad_personalization: 'denied',
        // analytics_storage: 'denied',
      })
      gtag('config', 'G-NFE37ZH2W3')
    </script>
  </head>
  <body
    class="antialiased transition-colors duration-300 bg-base-100 text-base-content"
  >
    <Navigation />
    <ThemeSelector />
    <slot />
  </body>
</html>