feat: add Replay Mode

web/src/core/replay/get-replay-id.ts

@@ -0,0 +1,13 @@
+// Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+// SPDX-License-Identifier: MIT
+
+export function extractReplayIdFromURL() {
+  if (typeof window === "undefined") {
+    return null;
+  }
+  const urlParams = new URLSearchParams(window.location.search);
+  if (urlParams.has("replay")) {
+    return urlParams.get("replay");
+  }
+  return null;
+}

web/src/core/replay/hooks.ts

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+// Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+// SPDX-License-Identifier: MIT
+
+import { useMemo } from "react";
+
+import { extractReplayIdFromURL } from "./get-replay-id";
+
+export function useReplay() {
+  const replayId = useMemo(() => {
+    return extractReplayIdFromURL();
+  }, []);
+  return { isReplay: replayId != null, replayId };
+}

web/src/core/replay/index.ts

@@ -0,0 +1,4 @@
+// Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+// SPDX-License-Identifier: MIT
+
+export * from "./hooks";