core&ui: assignment auto complete (#1061)

packages/hydrooj/src/handler/domain.ts

@@ -433,6 +433,25 @@ export const DomainApi = {
             return ddoc;
         },
     ),
+    groups: Query(
+        Schema.object({
+            search: Schema.string(),
+            names: Schema.array(Schema.string()),
+            domainId: Schema.string().required(),
+        }),
+        async (ctx, args) => {
+            if (!ctx.user.hasPerm(PERM.PERM_VIEW) && !ctx.user.hasPriv(PRIV.PRIV_VIEW_ALL_DOMAIN)) throw new PermissionError(PERM.PERM_VIEW);
+            const groups = await user.listGroup(args.domainId);
+            if (args.names?.length) {
+                return groups.filter((g) => args.names.includes(g.name));
+            }
+            if (args.search) {
+                const searchLower = args.search.toLowerCase();
+                return groups.filter((g) => g.name.toLowerCase().includes(searchLower));
+            }
+            return groups;
+        },
+    ),
     'domain.group': Mutation(
         Schema.object({
             name: Schema.string().required(),