import type { LevelSample } from "../../session/session-shape/session-shape.types.js";
import { useStreamContextOrThrow } from "../internal/use-stream-context.js";

/**
 * Returns realtime peak/RMS for the local microphone (when `peerId` is
 * omitted) or for the named peer. Levels come from the peer chain's
 * analyzer slot owned by chunks A+B; this hook is a pure projection.
 */
export function useStreamLevels(peerId?: string): LevelSample {
    const { session } = useStreamContextOrThrow();
    if (peerId === undefined) {
        return session.getLocalLevel();
    }
    return session.getPeerLevel(peerId);
}