import type { PipelineBus } from "../pipeline-bus.js";
import type { InteractionDecision, InteractionObservation, InteractionPolicy } from "../interaction-policy.js";
import { PrimarySpeakerGate } from "../primary-speaker-gate.js";
import { TtsPlayoutClock } from "../tts-playout-clock.js";
import { TurnArbiter } from "../turn-arbiter.js";
export interface RuleBasedInteractionPolicyDeps {
    readonly bus: PipelineBus;
    readonly primarySpeakerGate: PrimarySpeakerGate;
    readonly ttsPlayout: TtsPlayoutClock;
    readonly minInterruptionMs: number;
    /** When true, the underlying TurnArbiter emits duck/resume signals during barge-in evaluation. */
    readonly pauseThenResolveBargeIn?: boolean;
    /** Tenant-level backchannel knobs. Default (undefined) = current behavior (`mm_hmm`). */
    readonly backchannel?: {
        readonly enabled?: boolean;
        readonly cues?: readonly string[];
    };
}
export declare class RuleBasedInteractionPolicy implements InteractionPolicy {
    readonly arbiter: TurnArbiter;
    private readonly ttsPlayout;
    private readonly backchannelConfig;
    private pending;
    private bargeInAudioConsumed;
    private delegateGapOpen;
    private delegateCuePlayed;
    private userSpeaking;
    constructor(deps: RuleBasedInteractionPolicyDeps);
    observe(obs: InteractionObservation): readonly InteractionDecision[];
    private handleDelegateState;
    private depsTtsActive;
    reset(_contextId: string): void;
    takeBargeInAudioConsumed(): boolean;
}
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