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app/api/ical/[token]/route.ts

@@ -8,7 +8,12 @@ export async function GET(
 ) {
   const view = await prisma.userView.findUnique({
     where: { token: context.params.token },
-    include: { items: { include: { event: true } }, user: true }
+    include: {
+      items: { include: { event: true } },
+      categories: true,
+      exclusions: true,
+      user: true
+    }
   });
 
   if (!view) {
@@ -20,17 +25,36 @@ export async function GET(
     timezone: "Europe/Berlin"
   });
 
-  view.items
+  const excludedIds = new Set(view.exclusions.map((item) => item.eventId));
+  const explicitEvents = view.items
     .map((item) => item.event)
-    .filter((event) => event.status === "APPROVED")
-    .forEach((event) => {
+    .filter((event) => event.status === "APPROVED");
+
+  const categoryIds = view.categories.map((item) => item.categoryId);
+  const categoryEvents =
+    categoryIds.length > 0
+      ? await prisma.event.findMany({
+          where: { categoryId: { in: categoryIds }, status: "APPROVED" }
+        })
+      : [];
+
+  const combined = [...explicitEvents, ...categoryEvents].filter(
+    (event, index, all) =>
+      all.findIndex((item) => item.id === event.id) === index &&
+      !excludedIds.has(event.id)
+  );
+
+  combined.forEach((event) => {
+      const start = event.startAt;
+      const end =
+        event.endAt || new Date(event.startAt.getTime() + 3 * 60 * 60 * 1000);
       calendar.createEvent({
         id: event.id,
         summary: event.title,
         description: event.description || undefined,
         location: event.location || undefined,
-        start: event.startAt,
-        end: event.endAt
+        start,
+        end
       });
     });