Initial commit: spreewaldzeit + Dockerfile for Coolify (Next.js + Prisma/SQLite)

app/api/admin/sync-ical/route.ts

@@ -0,0 +1,130 @@
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/db";
+import { z } from "zod";
+
+const bodySchema = z.object({
+  apartmentId: z.string().min(1),
+  icalUrl: z.string().url(),
+  source: z.enum(["airbnb", "booking"]),
+});
+
+/** Minimal iCal parser for Airbnb / Booking.com VCALENDAR feeds. */
+function parseIcal(text: string) {
+  // Unfold continuation lines (RFC 5545 §3.1)
+  const unfolded = text.replace(/\r?\n[ \t]/g, "");
+  const lines = unfolded.split(/\r?\n/);
+
+  const events: Array<{ uid: string; start: Date; end: Date }> = [];
+  let inEvent = false;
+  let uid = "";
+  let start: Date | null = null;
+  let end: Date | null = null;
+
+  for (const line of lines) {
+    if (line === "BEGIN:VEVENT") {
+      inEvent = true;
+      uid = "";
+      start = null;
+      end = null;
+      continue;
+    }
+    if (line === "END:VEVENT") {
+      inEvent = false;
+      if (uid && start && end && end > start) {
+        events.push({ uid, start, end });
+      }
+      continue;
+    }
+    if (!inEvent) continue;
+
+    // Split on first colon, ignoring property params like ;VALUE=DATE
+    const colonIdx = line.indexOf(":");
+    if (colonIdx === -1) continue;
+    const propFull = line.slice(0, colonIdx);
+    const value = line.slice(colonIdx + 1).trim();
+    const prop = propFull.split(";")[0].toUpperCase();
+
+    if (prop === "DTSTART" || prop === "DTEND") {
+      const parsed = parseIcalDate(value);
+      if (parsed) {
+        if (prop === "DTSTART") start = parsed;
+        else end = parsed;
+      }
+    } else if (prop === "UID") {
+      uid = value;
+    }
+  }
+
+  return events;
+}
+
+function parseIcalDate(value: string): Date | null {
+  // DATE: YYYYMMDD
+  // DATETIME: YYYYMMDDTHHMMSSz or YYYYMMDDTHHMMSSZz
+  const digits = value.replace(/[TZ]/g, "").slice(0, 8);
+  if (digits.length < 8) return null;
+  const y = parseInt(digits.slice(0, 4));
+  const m = parseInt(digits.slice(4, 6)) - 1;
+  const d = parseInt(digits.slice(6, 8));
+  if (isNaN(y) || isNaN(m) || isNaN(d)) return null;
+  return new Date(Date.UTC(y, m, d));
+}
+
+export async function POST(request: Request) {
+  const body = await request.json().catch(() => null);
+  const parsed = bodySchema.safeParse(body);
+  if (!parsed.success) {
+    return NextResponse.json({ error: "Ungültige Eingabe." }, { status: 400 });
+  }
+
+  const { apartmentId, icalUrl, source } = parsed.data;
+
+  // Verify apartment exists
+  const apartment = await prisma.apartment.findUnique({ where: { id: apartmentId } });
+  if (!apartment) {
+    return NextResponse.json({ error: "Wohnung nicht gefunden." }, { status: 404 });
+  }
+
+  // Fetch the iCal feed
+  let icalText: string;
+  try {
+    const res = await fetch(icalUrl, {
+      headers: { "User-Agent": "Spreewaldzeit-CalSync/1.0" },
+      signal: AbortSignal.timeout(10_000),
+    });
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+    icalText = await res.text();
+  } catch (err) {
+    return NextResponse.json(
+      { error: `Kalender konnte nicht geladen werden: ${err instanceof Error ? err.message : "Unbekannt"}` },
+      { status: 502 }
+    );
+  }
+
+  const events = parseIcal(icalText);
+
+  // Delete all previous blocks from this source for this apartment
+  const deleted = await prisma.block.deleteMany({
+    where: { apartmentId, source },
+  });
+
+  // Insert new blocks
+  if (events.length > 0) {
+    await prisma.block.createMany({
+      data: events.map((e) => ({
+        apartmentId,
+        startDate: e.start,
+        endDate: e.end,
+        reason: "booking",
+        source,
+        note: `iCal-Import (${source}) · UID: ${e.uid.slice(0, 40)}`,
+      })),
+    });
+  }
+
+  return NextResponse.json({
+    ok: true,
+    deleted: deleted.count,
+    imported: events.length,
+  });
+}