feat: add queries to search for users by username and for parent posts based on content

convex/users.ts

@@ -1,3 +1,4 @@
+import { paginationOptsValidator } from 'convex/server';
 import { v } from 'convex/values';
 import { UserDto } from './../src/app/types/index';
 import {
@@ -121,3 +122,15 @@ export const deleteUser = internalMutation({
     await ctx.db.delete(userRecord._id);
   },
 });
+
+export const getUsersBySearchTerm = query({
+  args: { term: v.string(), paginationOpts: paginationOptsValidator },
+  handler: async (ctx, args) => {
+    return await ctx.db
+      .query('users')
+      .withSearchIndex('search_by_username', q =>
+        q.search('clerkUser.username', args.term)
+      )
+      .paginate(args.paginationOpts);
+  },
+});