116 lines
4.7 KiB
TypeScript
116 lines
4.7 KiB
TypeScript
import { NextResponse } from "next/server";
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import { getPayload } from "payload";
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import config from "@payload-config";
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import { getAvailableSlots } from "@/lib/booking/slots";
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import { withBookingTransaction } from "@/lib/booking/transaction";
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import { checkRateLimit, getClientIp } from "@/lib/auth/rateLimit";
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import { berlinDayBounds } from "@/lib/calendar/timezone";
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export const dynamic = "force-dynamic";
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type Body = {
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offerSlug?: unknown;
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start?: unknown;
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appointmentType?: unknown;
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message?: unknown;
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};
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export async function POST(request: Request) {
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let body: Body;
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try {
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body = await request.json();
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if (!body || typeof body !== "object" || Array.isArray(body)) throw new Error("Invalid body");
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} catch {
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return NextResponse.json({ error: "Ungültige Anfrage." }, { status: 400 });
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}
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const offerSlug = typeof body.offerSlug === "string" ? body.offerSlug : "";
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const startISO = typeof body.start === "string" ? body.start : "";
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const appointmentType = body.appointmentType;
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if (appointmentType !== "online" && appointmentType !== "onsite") return NextResponse.json({ error: "Ungültige Terminart." }, { status: 400 });
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const message = typeof body.message === "string" ? body.message.trim().slice(0, 2000) : "";
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if (!offerSlug || !startISO) {
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return NextResponse.json({ error: "Angebot und Termin sind erforderlich." }, { status: 400 });
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}
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try {
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const payload = await getPayload({ config });
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const { user } = await payload.auth({ headers: request.headers });
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if (!user || user.collection !== "customers") {
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return NextResponse.json({ error: "Bitte melde dich an, um einen Termin anzufragen." }, { status: 401 });
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}
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if (!user.emailVerified) {
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return NextResponse.json({ error: "Bitte bestätige zuerst deine E-Mail-Adresse.", code: "EMAIL_NOT_VERIFIED" }, { status: 403 });
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}
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if (!checkRateLimit(`booking:ip:${getClientIp(request)}`, { max: 30, windowMs: 3600000 }) ||
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!checkRateLimit(`booking:customer:${user.id}`, { max: 10, windowMs: 3600000 })) {
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return NextResponse.json({ error: "Zu viele Terminanfragen. Bitte versuche es später erneut." }, { status: 429 });
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}
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const { docs } = await payload.find({
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collection: "offers",
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where: { slug: { equals: offerSlug } },
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limit: 1,
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overrideAccess: false,
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});
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const offer = docs[0];
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if (!offer || !offer.bookable || !offer.durationMinutes) {
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return NextResponse.json({ error: "Dieses Angebot ist nicht buchbar." }, { status: 404 });
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}
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const start = new Date(startISO);
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if (Number.isNaN(start.getTime()) || start < new Date()) {
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return NextResponse.json({ error: "Bitte wähle einen gültigen, zukünftigen Termin." }, { status: 400 });
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}
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const end = new Date(start.getTime() + offer.durationMinutes * 60_000);
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// Re-validate the slot is actually free right now (defense against a
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// stale slot list) — the hard, race-safe check still runs again when
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// Anna confirms (see collections/BookingRequests.ts).
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const dayBounds = berlinDayBounds(start);
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return await withBookingTransaction(payload, dayBounds.key, async (req) => {
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const { docs: existing } = await payload.find({ collection: "booking-requests", req, depth: 0, limit: 1,
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where: { and: [
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{ user: { equals: user.id } }, { offer: { equals: offer.id } },
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{ startTime: { equals: start.toISOString() } }, { appointmentType: { equals: appointmentType } },
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{ status: { in: ["pending", "confirmed"] } },
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] },
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});
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if (existing[0]) return NextResponse.json({ ok: true });
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const slotsByDay = await getAvailableSlots(payload, {
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durationMinutes: offer.durationMinutes!,
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req,
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from: dayBounds.start,
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to: dayBounds.end,
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});
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const key = dayBounds.key;
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const isStillFree = (slotsByDay.get(key) ?? []).some((s) => s.start.getTime() === start.getTime());
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if (!isStillFree) {
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return NextResponse.json({ error: "Dieser Termin ist leider nicht mehr verfügbar." }, { status: 409 });
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}
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await payload.create({
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collection: "booking-requests",
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req,
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data: {
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user: user.id,
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offer: offer.id,
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date: start.toISOString(),
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startTime: start.toISOString(),
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endTime: end.toISOString(),
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appointmentType,
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status: "pending",
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userMessage: message || undefined,
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},
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});
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return NextResponse.json({ ok: true });
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});
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} catch (error) {
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console.error("booking request failed", error);
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return NextResponse.json({ error: "Die Anfrage konnte nicht gesendet werden. Bitte versuche es später erneut." }, { status: 500 });
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}
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}
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