import type { ActiveDelay, AddMissionDelayRequest, UpdateMissionDelayRequest, Mission } from "@polpo-ai/sdk";
export interface UseActiveDelaysReturn {
    /** Active delays from SSE events (live, updated by delay:started/delay:expired). */
    activeDelays: ActiveDelay[];
    /** Active delays fetched from the server (initial load). */
    fetchedDelays: ActiveDelay[];
    /** Refetch from server. */
    refetch: () => void;
    loading: boolean;
    addDelay: (missionId: string, req: AddMissionDelayRequest) => Promise<Mission>;
    isAdding: boolean;
    updateDelay: (missionId: string, delayName: string, req: UpdateMissionDelayRequest) => Promise<Mission>;
    isUpdating: boolean;
    removeDelay: (missionId: string, delayName: string) => Promise<Mission>;
    isRemoving: boolean;
}
/**
 * Hook for accessing active delay timers.
 *
 * Combines two sources:
 * 1. SSE events (delay:started / delay:expired) → store.activeDelays (real-time)
 * 2. Initial fetch from GET /missions/delays (catches delays that started before SSE connected)
 *
 * Includes mutations: addDelay, updateDelay, removeDelay — each auto-refetches on success.
 */
export declare function useActiveDelays(): UseActiveDelaysReturn;
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