WIP: implement SWR hook to subscribe

apps/app/src/features/openai/chat/stores/thread.ts

@@ -0,0 +1,32 @@
+import useSWRSubscription from 'swr/subscription';
+
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+export const useSWRSUBxOpenaiRun = (threadId: string, runId: string) => {
+  return useSWRSubscription(
+    ['openaiRun', threadId, runId],
+    ([, threadId, runId], { next }) => {
+
+      // SSEを実装したサーバに接続する
+      const eventSource = new EventSource(`/_api/v3/openai/thread/${threadId}/run/${runId}/subscribe`);
+
+      // TODO: Error handling
+      // eventSource.onerror = () => {
+      // };
+
+      eventSource.onmessage = (event) => {
+        console.log({ event });
+
+        // const parsedData = JSON.parse(event.data);
+
+        // if (parsedData.event === 'error') {
+        //   next(parsedData.error);
+        //   return;
+        // }
+
+        // next(null, parsedData.data);
+      };
+
+      return () => eventSource.close();
+    },
+  );
+};