Files
CapaKraken/apps/web/src/app/api/sse/timeline/route.ts
T

106 lines
2.9 KiB
TypeScript

import { loadRoleDefaults } from "@capakraken/api";
import { deriveUserSseSubscription, eventBus } from "@capakraken/api/sse";
import { startReminderScheduler } from "@capakraken/api/lib/reminder-scheduler";
import { prisma } from "@capakraken/db";
import { SSE_EVENT_TYPES, SystemRole, type PermissionOverrides } from "@capakraken/shared";
import { auth } from "~/server/auth.js";
export const dynamic = "force-dynamic";
export const runtime = "nodejs";
export async function GET() {
// Start lazily on the first real SSE request so builds/import-time evaluation
// never attempt reminder processing against a live database.
startReminderScheduler();
const session = await auth();
if (!session?.user) {
return new Response("Unauthorized", { status: 401 });
}
const sessionUser = session.user as typeof session.user & { id?: string };
if (!sessionUser.id) {
return new Response("Unauthorized", { status: 401 });
}
const dbUser = await prisma.user.findUnique({
where: { id: sessionUser.id },
select: {
id: true,
systemRole: true,
permissionOverrides: true,
resource: {
select: {
id: true,
},
},
},
});
if (!dbUser) {
return new Response("Unauthorized", { status: 401 });
}
const roleDefaults = await loadRoleDefaults();
const subscription = deriveUserSseSubscription(
{
userId: dbUser.id,
systemRole: dbUser.systemRole as SystemRole,
permissionOverrides: dbUser.permissionOverrides as PermissionOverrides | null,
resourceId: dbUser.resource?.id ?? null,
},
roleDefaults,
);
const encoder = new TextEncoder();
const stream = new ReadableStream({
start(controller) {
// Send initial connection confirmation
controller.enqueue(
encoder.encode(`data: ${JSON.stringify({ type: SSE_EVENT_TYPES.PING, timestamp: new Date().toISOString() })}\n\n`),
);
// Subscribe to event bus
const unsubscribe = eventBus.subscribe(
(event) => {
try {
controller.enqueue(encoder.encode(`data: ${JSON.stringify(event)}\n\n`));
} catch {
// Client disconnected
}
},
subscription,
);
// Heartbeat every 30 seconds
const heartbeat = setInterval(() => {
try {
controller.enqueue(
encoder.encode(`data: ${JSON.stringify({ type: SSE_EVENT_TYPES.PING, timestamp: new Date().toISOString() })}\n\n`),
);
} catch {
clearInterval(heartbeat);
unsubscribe();
}
}, 30000);
// Cleanup on close
return () => {
clearInterval(heartbeat);
unsubscribe();
};
},
});
return new Response(stream, {
headers: {
"Content-Type": "text/event-stream",
"Cache-Control": "no-cache, no-transform",
Connection: "keep-alive",
"X-Accel-Buffering": "no",
},
});
}