initial commit

components/analytics/GoogleAnalytics.tsx

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+import Script from 'next/script'
+
+import siteMetadata from '@/data/siteMetadata'
+
+const GAScript = () => {
+  return (
+    <>
+      <Script
+        strategy="lazyOnload"
+        src={`https://www.googletagmanager.com/gtag/js?id=${siteMetadata.analytics.googleAnalyticsId}`}
+      />
+
+      <Script strategy="lazyOnload" id="ga-script">
+        {`
+            window.dataLayer = window.dataLayer || [];
+            function gtag(){dataLayer.push(arguments);}
+            gtag('js', new Date());
+            gtag('config', '${siteMetadata.analytics.googleAnalyticsId}', {
+              page_path: window.location.pathname,
+            });
+        `}
+      </Script>
+    </>
+  )
+}
+
+export default GAScript
+
+// https://developers.google.com/analytics/devguides/collection/gtagjs/events
+export const logEvent = (action, category, label, value) => {
+  window.gtag?.('event', action, {
+    event_category: category,
+    event_label: label,
+    value: value,
+  })
+}