feat: add tomorrow weather brief notifications

lib/push-store.ts

@@ -4,6 +4,7 @@ interface PushStore {
   subscriptions: Map<string, WarningPushSubscription>;
   sentWarningIds: Map<string, Set<string>>;
   sentMorningBriefDates: Map<string, Set<string>>;
+  sentTomorrowBriefDates: Map<string, Set<string>>;
 }
 
 const globalStore = globalThis as typeof globalThis & { __wtrPushStore?: PushStore };
@@ -14,6 +15,7 @@ function getStore() {
       subscriptions: new Map(),
       sentWarningIds: new Map(),
       sentMorningBriefDates: new Map(),
+      sentTomorrowBriefDates: new Map(),
     };
   }
   return globalStore.__wtrPushStore;
@@ -28,6 +30,7 @@ export function removePushSubscription(endpoint: string) {
   store.subscriptions.delete(endpoint);
   store.sentWarningIds.delete(endpoint);
   store.sentMorningBriefDates.delete(endpoint);
+  store.sentTomorrowBriefDates.delete(endpoint);
 }
 
 export function getPushSubscriptions() {
@@ -67,3 +70,14 @@ export function markMorningBriefSent(endpoint: string, dateKey: string) {
   sentDates.add(dateKey);
   store.sentMorningBriefDates.set(endpoint, sentDates);
 }
+
+export function hasSentTomorrowBrief(endpoint: string, dateKey: string) {
+  return getStore().sentTomorrowBriefDates.get(endpoint)?.has(dateKey) ?? false;
+}
+
+export function markTomorrowBriefSent(endpoint: string, dateKey: string) {
+  const store = getStore();
+  const sentDates = store.sentTomorrowBriefDates.get(endpoint) ?? new Set<string>();
+  sentDates.add(dateKey);
+  store.sentTomorrowBriefDates.set(endpoint, sentDates);
+}