Setup system-svelte

packages/system-svelte/src/request-builder.ts

@@ -0,0 +1,20 @@
+import { type NoteStore, type RequestBuilder, type StoreSnapshot, type SystemInterface } from "@snort/system";
+import { getContext } from "svelte";
+
+export function useRequestBuilder<T extends NoteStore>(type: new () => T, rb: RequestBuilder) {
+  const system = getContext("snort") as SystemInterface;
+  type TSnap = StoreSnapshot<ReturnType<T["getSnapshotData"]>>;
+  return {
+    subscribe: (set: (value: TSnap) => void) => {
+      const q = system.Query(type, rb);
+      q.uncancel();
+      const release = q.feed.hook(() => {
+        set(q.feed.snapshot as TSnap);
+      });
+      return () => {
+        q.cancel();
+        release();
+      };
+    },
+  };
+}