first commit

src/lib/admin-queries.ts

@@ -0,0 +1,57 @@
+import type { BookingStatus, PaymentStatus, Prisma } from "@/generated/prisma/client";
+
+const BOOKING_STATUSES: BookingStatus[] = ["PENDING", "CONFIRMED", "CANCELED", "EXPIRED", "NEEDS_REVIEW"];
+const PAYMENT_STATUSES: PaymentStatus[] = ["UNPAID", "PROCESSING", "PARTIALLY_PAID", "PAID", "FAILED", "PARTIALLY_REFUNDED", "REFUNDED"];
+
+export type BookingFilter = { status?: BookingStatus; zahlung?: PaymentStatus; modus: "test" | "live"; q?: string };
+
+/** Liest Filter aus der URL; Unbekanntes wird ignoriert statt uebernommen. */
+export function parseBookingFilter(params: Record<string, string | string[] | undefined>, defaultMode: "test" | "live"): BookingFilter {
+  const get = (k: string) => (typeof params[k] === "string" ? (params[k] as string) : undefined);
+  const status = get("status");
+  const zahlung = get("zahlung");
+  const modus = get("modus");
+  const q = get("q")?.trim().slice(0, 100);
+  return {
+    status: BOOKING_STATUSES.includes(status as BookingStatus) ? (status as BookingStatus) : undefined,
+    zahlung: PAYMENT_STATUSES.includes(zahlung as PaymentStatus) ? (zahlung as PaymentStatus) : undefined,
+    modus: modus === "live" || modus === "test" ? modus : defaultMode,
+    q: q || undefined,
+  };
+}
+
+export function bookingWhere(filter: BookingFilter): Prisma.BookingWhereInput {
+  return {
+    livemode: filter.modus === "live",
+    ...(filter.status ? { status: filter.status } : {}),
+    ...(filter.zahlung ? { paymentStatus: filter.zahlung } : {}),
+    ...(filter.q
+      ? {
+          OR: [
+            { reference: { contains: filter.q, mode: "insensitive" } },
+            { email: { contains: filter.q, mode: "insensitive" } },
+            { lastName: { contains: filter.q, mode: "insensitive" } },
+            { firstName: { contains: filter.q, mode: "insensitive" } },
+          ],
+        }
+      : {}),
+  };
+}
+
+export function filterQuery(filter: BookingFilter): string {
+  const params = new URLSearchParams();
+  params.set("modus", filter.modus);
+  if (filter.status) params.set("status", filter.status);
+  if (filter.zahlung) params.set("zahlung", filter.zahlung);
+  if (filter.q) params.set("q", filter.q);
+  return params.toString();
+}
+
+/** Schutz vor Formel-Injektion: Zellen, die mit = + - @ beginnen, werden entschaerft. */
+export function csvCell(value: string | number | null | undefined): string {
+  let s = value === null || value === undefined ? "" : String(value);
+  if (/^[=+\-@\t\r]/.test(s)) s = `'${s}`;
+  return `"${s.replace(/"/g, '""')}"`;
+}
+
+export { BOOKING_STATUSES, PAYMENT_STATUSES };