fix: netlify identity registration link handling

apps/website/gatsby-ssr.ts → apps/website/gatsby-ssr.tsx

@@ -2,11 +2,13 @@ import './styles.css';
 
 import { Locale, registerExecutor } from '@custom/schema';
 import { GatsbySSR } from 'gatsby';
+import React from 'react';
 
 import { drupalExecutor } from './src/utils/drupal-executor';
 
 export const onRenderBody: GatsbySSR['onRenderBody'] = ({
   setHtmlAttributes,
+  setHeadComponents,
   pathname,
 }) => {
   registerExecutor(drupalExecutor(`/graphql`));
@@ -27,4 +29,23 @@ export const onRenderBody: GatsbySSR['onRenderBody'] = ({
       // We don't know the language.
     }
   }
+  // Remove this if Netlify identity is not used.
+  setHeadComponents([
+    <script
+      key="netlify-identity-widget"
+      src="https://identity.netlify.com/v1/netlify-identity-widget.js"
+    />,
+    <script key="netlify-identity-redirect" dangerouslySetInnerHTML={{
+      __html: `
+  if (window.netlifyIdentity) {
+    window.netlifyIdentity.on("init", user => {
+      if (!user) {
+        window.netlifyIdentity.on("login", () => {
+          document.location.href = "/admin/";
+        });
+      }
+    });
+  }
+`}} />
+  ]);
 };