feat(me): show actionable personal tasks with unavailable states

src/lib/services/dashboard-tasks.ts

@@ -0,0 +1,61 @@
+import "server-only";
+import { and, asc, count, eq, gt, sql } from "drizzle-orm";
+import {
+	db,
+	MessengerFriendrequests,
+	WebsiteEvent,
+	WebsiteEventRegistration,
+	WebsiteHelpCenterTicketReplies,
+	WebsiteHelpCenterTickets,
+} from "@/lib/db";
+
+/** Caller supplies the authenticated session user, never a request parameter. */
+export async function loadDashboardTasks(userId: number, now = new Date()) {
+	if (!Number.isSafeInteger(userId) || userId <= 0)
+		throw new Error("Invalid user");
+	const [supportRows, friendRows, eventRows] = await Promise.all([
+		db
+			.select({ value: count() })
+			.from(WebsiteHelpCenterTickets)
+			.where(
+				and(
+					eq(WebsiteHelpCenterTickets.userId, userId),
+					eq(WebsiteHelpCenterTickets.open, true),
+					sql`(select ${WebsiteHelpCenterTicketReplies.userId} from ${WebsiteHelpCenterTicketReplies} where ${WebsiteHelpCenterTicketReplies.ticketId} = ${WebsiteHelpCenterTickets.id} order by ${WebsiteHelpCenterTicketReplies.id} desc limit 1) <> ${userId}`,
+				),
+			)
+			.catch(() => null),
+		db
+			.select({ value: count() })
+			.from(MessengerFriendrequests)
+			.where(eq(MessengerFriendrequests.userToId, userId))
+			.catch(() => null),
+		db
+			.select({
+				id: WebsiteEvent.id,
+				title: WebsiteEvent.title,
+				startsAt: WebsiteEvent.startsAt,
+			})
+			.from(WebsiteEventRegistration)
+			.innerJoin(
+				WebsiteEvent,
+				eq(WebsiteEvent.id, WebsiteEventRegistration.eventId),
+			)
+			.where(
+				and(
+					eq(WebsiteEventRegistration.userId, userId),
+					eq(WebsiteEvent.status, "published"),
+					gt(WebsiteEvent.startsAt, now),
+				),
+			)
+			.orderBy(asc(WebsiteEvent.startsAt), asc(WebsiteEvent.id))
+			.limit(1)
+			.catch(() => null),
+	]);
+	return {
+		support: supportRows === null ? null : Number(supportRows[0]?.value ?? 0),
+		friendRequests:
+			friendRows === null ? null : Number(friendRows[0]?.value ?? 0),
+		registeredEvent: eventRows === null ? null : (eventRows[0] ?? false),
+	};
+}