interaction system

src/lib/stores/interaction-store.ts

@@ -0,0 +1,23 @@
+import { writable } from "svelte/store";
+import type { InteractionPayloadDto } from "../../types/bindings/InteractionPayloadDto";
+
+// Map senderUserId -> InteractionPayloadDto
+export const receivedInteractions = writable<Map<string, InteractionPayloadDto>>(new Map());
+
+export function addInteraction(interaction: InteractionPayloadDto) {
+  receivedInteractions.update((map) => {
+    // For now, we only store the latest message per user.
+    // In the future, we could store an array if we want a history.
+    const newMap = new Map(map);
+    newMap.set(interaction.senderUserId, interaction);
+    return newMap;
+  });
+}
+
+export function clearInteraction(userId: string) {
+  receivedInteractions.update((map) => {
+    const newMap = new Map(map);
+    newMap.delete(userId);
+    return newMap;
+  });
+}