add @ mentions in chat

frontend/src/lib/server/services/chat.ts

@@ -1,3 +1,5 @@
+import { sendMentionEmail } from '../email';
+
 export type ChatActor = {
 	id: string;
 	type: 'admin' | 'member';
@@ -5,19 +7,33 @@ export type ChatActor = {
 	color: string;
 };
 
+// Everyone in the family (children + parents) for the @mention picker.
 export async function chatMe(pb: any, famId: string, actor: ChatActor) {
-	return { famId, actor };
+	const users = await pb
+		.collection('users')
+		.getFullList({ filter: `famId = '${famId}'` })
+		.catch(() => []);
+	return {
+		famId,
+		actor,
+		members: users.map((m: any) => ({
+			id: m.id,
+			name: m.name || '',
+			color: m.color || '#6366f1',
+			role: m.role === 'parent' ? 'parent' : 'child'
+		}))
+	};
 }
 
 export async function send(
 	pb: any,
 	famId: string,
 	actor: ChatActor,
-	body: { content?: string; clientId?: string }
+	body: { content?: string; clientId?: string; siteUrl?: string }
 ) {
 	const content = (body.content || '').trim();
 	if (!content) throw new Error('content required');
-	return pb.collection('messages').create({
+	const record = await pb.collection('messages').create({
 		famId,
 		authorType: actor.type,
 		authorId: actor.id,
@@ -27,14 +43,50 @@ export async function send(
 		createdAt: new Date().toISOString(),
 		clientId: body.clientId ? String(body.clientId).slice(0, 64) : ''
 	});
+	// Email any @mentioned parents (their in-app toast is client-side, via the
+	// same mention tokens). Fire-and-forget — never fail the message itself.
+	notifyMentionedParents(pb, famId, actor, record, body.siteUrl || '').catch(() => {});
+	return record;
 }
 
-export async function typing(
+// Scan the message for `@Parent Name` tokens (case-insensitive) and email every
+// mentioned parent who isn't the sender, with a link back to the family site.
+async function notifyMentionedParents(
 	pb: any,
 	famId: string,
 	actor: ChatActor,
-	body: { typing?: boolean }
+	message: any,
+	siteUrl: string
 ) {
+	const content = String(message.content || '');
+	const parents = await pb
+		.collection('users')
+		.getFullList({ filter: `famId = '${famId}' && role = 'parent'` })
+		.catch(() => []);
+	const mentioned = parents.filter((u: any) => {
+		if (u.id === actor.id || !u.email) return false;
+		const name = (u.name || '').trim().toLowerCase();
+		return !!name && content.toLowerCase().includes('@' + name);
+	});
+	if (!mentioned.length) return;
+
+	const fam = await pb
+		.collection('fams')
+		.getOne(famId)
+		.catch(() => null);
+	const dashboardUrl = `${siteUrl}/${fam?.slug || famId}`;
+	for (const parent of mentioned) {
+		await sendMentionEmail({
+			to: parent.email,
+			parentName: parent.name || 'there',
+			authorName: message.authorName || 'Family member',
+			message: content,
+			dashboardUrl
+		});
+	}
+}
+
+export async function typing(pb: any, famId: string, actor: ChatActor, body: { typing?: boolean }) {
 	const existing = await pb.collection('chat_typing').getFullList({
 		filter: `famId = '${famId}' && actorId = '${actor.id}' && actorType = '${actor.type}'`
 	});
@@ -52,4 +104,4 @@ export async function typing(
 		await pb.collection('chat_typing').create(row);
 	}
 	return { ok: true };
-}
+}