Arnaud
aa6bd03c5e
Shared shopping lists (owner + collaborator-invite members) had no real-time coordination signal — no way to know someone else just checked off milk or added items while you're mid-aisle. Notifies every other member (excluding the actor) via push when an item is checked off or items are added; no-op for solo unshared lists. Deliberately skips the notifications table/notification-center (same pattern as the existing leftover-expiry cron) — this is a lightweight best-effort ping, not a persistent event, so it avoids a notification_type enum migration and a new FK column for something transient. Verified locally: added a real member to a shared list, registered a push subscription, confirmed the check-off request's added latency (945ms vs ~20ms baseline) shows the actual webpush call fired against the recipient — individual subscription failures are swallowed by design (Promise.allSettled in the existing sendPushNotification, unchanged); confirmed a solo list stays fast (no recipients to notify, true no-op).
78 lines
3.0 KiB
TypeScript
78 lines
3.0 KiB
TypeScript
import { db, shoppingLists, shoppingListMembers, eq } from "@epicure/db";
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import { sendPushNotification } from "@/lib/push";
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import { getMessages, formatMessage } from "@/lib/i18n/server";
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// formatMessage() is a plain {key} interpolator, not ICU-plural-aware, so
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// pluralization has to be resolved to a plain string before it's passed in.
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function itemsCountLabel(count: number, locale: string | null | undefined): string {
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if (locale === "fr") return count === 1 ? "1 article" : `${count} articles`;
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return count === 1 ? "1 item" : `${count} items`;
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}
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/** Other people with access to a shared shopping list — owner + members, excluding the actor. */
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async function getOtherRecipients(listId: string, actorId: string) {
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const list = await db.query.shoppingLists.findFirst({
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where: eq(shoppingLists.id, listId),
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columns: { userId: true },
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});
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const members = await db.query.shoppingListMembers.findMany({
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where: eq(shoppingListMembers.listId, listId),
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columns: { userId: true },
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});
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const recipientIds = new Set<string>();
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if (list?.userId) recipientIds.add(list.userId);
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for (const m of members) recipientIds.add(m.userId);
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recipientIds.delete(actorId);
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if (recipientIds.size === 0) return [];
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return db.query.users.findMany({
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where: (t, { inArray }) => inArray(t.id, [...recipientIds]),
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columns: { id: true, locale: true },
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});
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}
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/**
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* Push-notifies every other member of a shared shopping list about an item
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* change. No-op for solo (unshared) lists — getOtherRecipients returns empty.
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* Deliberately skips the `notifications` table (no in-app entry) since this
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* is meant as a lightweight real-time "someone's shopping too" ping, same
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* pattern as the leftover-expiry cron — not a persistent notification-center
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* event.
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*/
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export async function notifyShoppingListMembers(
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listId: string,
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actorId: string,
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actorName: string,
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event: { type: "checked" | "itemsAdded"; itemName?: string; count?: number; listName: string }
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): Promise<void> {
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const recipients = await getOtherRecipients(listId, actorId);
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if (recipients.length === 0) return;
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const url = `/shopping-lists/${listId}`;
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await Promise.all(
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recipients.map(async (recipient) => {
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const messages = getMessages(recipient.locale);
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const title = messages.notifications.pushTitle.shoppingListUpdate;
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const body =
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event.type === "checked"
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? formatMessage(messages.notifications.detail.shoppingListChecked, {
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name: actorName,
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item: event.itemName ?? "",
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list: event.listName,
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})
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: formatMessage(messages.notifications.detail.shoppingListItemsAdded, {
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name: actorName,
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countLabel: itemsCountLabel(event.count ?? 1, recipient.locale),
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list: event.listName,
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});
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await sendPushNotification(recipient.id, { title, body, url }).catch((err) => {
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console.error("[shopping-list-notify] push failed", err);
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});
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})
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);
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}
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