1 files changed, 37 insertions, 0 deletions
diff --git a/src/stores/aprilFools.ts b/src/stores/aprilFools.ts
new file mode 100644
index 00000000..d86829c1
--- /dev/null
+++ b/src/stores/aprilFools.ts
@@ -0,0 +1,37 @@
+import { browser } from "$app/environment";
+import { writable } from "svelte/store";
+
+const storageKey = (date = new Date()) =>
+	`aprilFoolsExecutiveMode:${date.getFullYear()}`;
+
+export const isAprilFoolsDay = (date = new Date()) =>
+	date.getMonth() === 3 && date.getDate() === 1;
+
+let hydrated = !browser;
+
+const store = writable(false);
+
+export const hydrateAprilFools = () => {
+	if (!browser || hydrated) return;
+
+	const storedValue = localStorage.getItem(storageKey());
+
+	store.set(storedValue === null ? isAprilFoolsDay() : storedValue === "true");
+	hydrated = true;
+};
+
+store.subscribe((value) => {
+	if (!browser || !hydrated) return;
+
+	localStorage.setItem(storageKey(), String(value));
+});
+
+export const aprilFoolsVisible = () => isAprilFoolsDay();
+
+const aprilFools = {
+	subscribe: store.subscribe,
+	set: store.set,
+	toggle: () => store.update((value) => !value),
+};
+
+export default aprilFools;