first commit

src/lib/public-page.ts

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+/**
+ * Daten fuer die oeffentliche Onepage. Liefert ausschliesslich, was
+ * oeffentlich sein darf: keine Kapazitaet, keine Restplaetze, kein
+ * Kontingent, keine Gutscheine, keine internen Kalkulationswerte.
+ */
+import { getCamp, publicCampFacts, salesStateFor, type PublicCampFacts } from "./camp";
+import { getDb } from "./db";
+import { env, showDevPlaceholders, stripeModeOrNull } from "./env";
+import { BASE_PRICE_CENTS, calculatePrice, EARLY_BIRD_START, REGULAR_START, type PricePhase } from "./pricing";
+import type { SalesState, StripeMode } from "./sales-gate";
+
+export type PublicPricing = {
+  mode: StripeMode | null;
+  checkoutOpen: boolean;
+  closedReason: SalesState["closedReason"] | "NOT_CONFIGURED";
+  phase: PricePhase;
+  phaseSimulated: boolean;
+  regularCents: number;
+  earlyBirdCents: number;
+  /** Aktuell gueltiger Preis ohne Gutschein; null in der Vorschau. */
+  currentCents: number | null;
+  earlyBirdStartIso: string;
+  earlyBirdEndIso: string;
+  installmentsAllowed: boolean;
+  reservationMinutes: number;
+};
+
+export type PublicPageData = {
+  facts: PublicCampFacts;
+  pricing: PublicPricing;
+  showDrafts: boolean;
+  externalVideoProvider: "none" | "youtube-nocookie" | "vimeo";
+};
+
+export async function loadPublicPage(now: Date = new Date()): Promise<PublicPageData> {
+  const camp = await getCamp(getDb());
+  const mode = stripeModeOrNull();
+  const facts = publicCampFacts(camp);
+
+  let pricing: PublicPricing;
+  const base = {
+    regularCents: BASE_PRICE_CENTS,
+    earlyBirdCents: calculatePrice("EARLY_BIRD", false).totalCents,
+    earlyBirdStartIso: EARLY_BIRD_START.toISOString(),
+    earlyBirdEndIso: REGULAR_START.toISOString(),
+    reservationMinutes: camp.reservationMinutes,
+  };
+  if (!mode) {
+    pricing = {
+      ...base,
+      mode: null,
+      checkoutOpen: false,
+      closedReason: "NOT_CONFIGURED",
+      phase: "PREVIEW",
+      phaseSimulated: false,
+      currentCents: null,
+      installmentsAllowed: false,
+    };
+  } else {
+    const state = salesStateFor(camp, mode, now);
+    pricing = {
+      ...base,
+      mode,
+      checkoutOpen: state.checkoutOpen,
+      closedReason: state.closedReason,
+      phase: state.effectivePhase,
+      phaseSimulated: state.phaseSimulated,
+      currentCents: state.effectivePhase === "PREVIEW" ? null : calculatePrice(state.effectivePhase, false).totalCents,
+      installmentsAllowed: state.installmentsAllowed,
+    };
+  }
+  return { facts, pricing, showDrafts: showDevPlaceholders(), externalVideoProvider: env().EXTERNAL_VIDEO_PROVIDER };
+}