Files
einfach-produktiv/app/lib/loadTrackingCode.ts
T
Marco 537543bf91 Replace custom cookie banner with Klaro (open-source, self-hosted CMP)
Swaps the hand-rolled CookieBanner.tsx/useConsent.ts/TrackingScripts.tsx
for kiprotect/klaro — brings a real per-service consent list and
bundled German UI translations that a custom implementation would
have had to build from scratch (per user feedback that a proper CMP
is worth it over a purely custom binary accept/reject banner).

klaroConfig.ts builds Klaro's config dynamically from the existing
tracking-codes backend collection (one Klaro "service" per row,
grouped by consentCategory as its purpose). loadTrackingCode.ts is
the actual script-injection side effect, wired in via each service's
`callback(consent)` — same GA4/Facebook-Pixel/GTM/custom loader logic
TrackingScripts.tsx had, just triggered imperatively instead of
declaratively rendered. Brand color applied via Klaro's CSS custom
property overrides (styling.green1 etc.), not custom SCSS.

No @types/klaro package exists — types/klaro.d.ts declares only the
small surface actually used.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-01 20:33:10 +00:00

76 lines
3.0 KiB
TypeScript

import type { TrackingCode } from "./payload";
// Imperative <script> injection, not next/script — this fires from
// KlaroConsentManager.tsx's per-service `callback(consent)`, i.e. at an
// arbitrary point after mount (whenever a visitor actually accepts), not
// declaratively on every render. Idempotent via the DOM id check, since
// Klaro's `onlyOnce: true` (see klaroConfig.ts) already tries to guarantee
// a single callback-with-consent-true per page load, but this is a cheap
// second guard against ever injecting the same script twice.
function injectScript(id: string, src?: string, inlineJs?: string) {
if (document.getElementById(id)) return;
const script = document.createElement("script");
script.id = id;
script.async = true;
if (src) script.src = src;
else script.textContent = inlineJs ?? "";
document.head.appendChild(script);
}
// One loader per TrackingCodes.provider (google-analytics/facebook-pixel/
// google-tag-manager/other) — same fixed loader snippets per provider as
// the Payload backend's own admin.description promises, 'other' is the
// only one whose content is admin-supplied rather than a fixed snippet
// (trusted deliberately, see TrackingCodes.ts on the backend).
export function loadTrackingCode(code: TrackingCode): void {
const baseId = `tracking-code-${code.id}`;
if (code.provider === "google-analytics" && code.measurementId) {
injectScript(`${baseId}-loader`, `https://www.googletagmanager.com/gtag/js?id=${code.measurementId}`);
injectScript(
`${baseId}-init`,
undefined,
`window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', '${code.measurementId}');`,
);
return;
}
if (code.provider === "facebook-pixel" && code.pixelId) {
injectScript(
baseId,
undefined,
`!function(f,b,e,v,n,t,s)
{if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};
if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';
n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];
s.parentNode.insertBefore(t,s)}(window, document,'script',
'https://connect.facebook.net/en_US/fbevents.js');
fbq('init', '${code.pixelId}');
fbq('track', 'PageView');`,
);
return;
}
if (code.provider === "google-tag-manager" && code.containerId) {
injectScript(
baseId,
undefined,
`(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','${code.containerId}');`,
);
return;
}
if (code.provider === "other" && code.customScript) {
injectScript(baseId, undefined, code.customScript);
}
}