ui(admin): add "working" React admin ui

resources/scripts/state/admin/nests.ts

@@ -0,0 +1,29 @@
+import type { Action } from 'easy-peasy';
+import { action } from 'easy-peasy';
+
+interface AdminNestStore {
+    selectedNests: number[];
+
+    setSelectedNests: Action<AdminNestStore, number[]>;
+    appendSelectedNest: Action<AdminNestStore, number>;
+    removeSelectedNest: Action<AdminNestStore, number>;
+}
+
+const nests: AdminNestStore = {
+    selectedNests: [],
+
+    setSelectedNests: action((state, payload) => {
+        state.selectedNests = payload;
+    }),
+
+    appendSelectedNest: action((state, payload) => {
+        state.selectedNests = state.selectedNests.filter(id => id !== payload).concat(payload);
+    }),
+
+    removeSelectedNest: action((state, payload) => {
+        state.selectedNests = state.selectedNests.filter(id => id !== payload);
+    }),
+};
+
+export type { AdminNestStore };
+export default nests;