import type { CustomMessage } from "@caupulican/pi-agent-core";
import type { ForegroundRecoveryController, ForegroundSubmissionLease } from "./foreground-recovery-controller.ts";
import type { GoalSessionController } from "./goals/goal-session-controller.ts";
interface DurableCustomMessageTurnControllerDeps {
    foreground: ForegroundRecoveryController;
    goals: Pick<GoalSessionController, "beginExecution" | "endExecution">;
    enqueueSteeringMessage(message: CustomMessage<unknown>): void;
}
/**
 * Starts an internal custom-message turn and separates durable input acceptance from full model-run
 * completion. Notification outboxes may acknowledge after `start` resolves, while the foreground
 * owner retains its lease until the returned completion settles.
 */
export declare class DurableCustomMessageTurnController {
    private readonly deps;
    private readonly pending;
    constructor(deps: DurableCustomMessageTurnControllerDeps);
    /** Accept only the exact custom-message object after SessionManager append succeeds. */
    notePersisted(message: CustomMessage<unknown>): boolean;
    /** Reject queued delivery receipts that can no longer reach persistence during session shutdown. */
    shutdown(): void;
    /** Queue a custom message for the next provider boundary and resolve only after durable append. */
    enqueue<T>(message: Pick<CustomMessage<T>, "customType" | "content" | "display" | "details">): Promise<void>;
    start<T>(message: Pick<CustomMessage<T>, "customType" | "content" | "display" | "details">, submissionLease: ForegroundSubmissionLease, goalId?: string): Promise<{
        completion: Promise<void>;
    }>;
    private prepare;
}
export {};
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