v12 (#5712)

Co-authored-by: MeiMei <30769358+mei23@users.noreply.github.com>
Co-authored-by: Satsuki Yanagi <17376330+u1-liquid@users.noreply.github.com>

src/client/scripts/gen-search-query.ts

@@ -0,0 +1,31 @@
+import parseAcct from '../../misc/acct/parse';
+import { host as localHost } from '../config';
+
+export async function genSearchQuery(v: any, q: string) {
+	let host: string;
+	let userId: string;
+	if (q.split(' ').some(x => x.startsWith('@'))) {
+		for (const at of q.split(' ').filter(x => x.startsWith('@')).map(x => x.substr(1))) {
+			if (at.includes('.')) {
+				if (at === localHost || at === '.') {
+					host = null;
+				} else {
+					host = at;
+				}
+			} else {
+				const user = await v.$root.api('users/show', parseAcct(at)).catch(x => null);
+				if (user) {
+					userId = user.id;
+				} else {
+					// todo: show error
+				}
+			}
+		}
+
+	}
+	return {
+		query: q.split(' ').filter(x => !x.startsWith('/') && !x.startsWith('@')).join(' '),
+		host: host,
+		userId: userId
+	};
+}