export type PiRuntimeMode = "tui" | "rpc" | "json" | "print";
import type { ReceiverLeaseAcquireResult } from "./receiver-lease.js";
export interface InboxRuntimeStatus {
    readonly receiver: "dormant" | "send-only" | "receiving";
    readonly watch: "stopped" | "recovering" | "watching" | "backoff" | "disabled";
    readonly receiverGeneration: string | null;
    readonly backoffAttempt: number;
    readonly nextBackoffMs: number | null;
    readonly lastError: string | null;
    readonly staged: {
        readonly urgent: number;
        readonly normal: number;
        readonly low: number;
    };
}
export type InboxStatusProjection = {
    readonly surface: "tui";
    readonly text: string;
    readonly value: InboxRuntimeStatus;
} | {
    readonly surface: "rpc";
    readonly value: InboxRuntimeStatus;
} | {
    readonly surface: "none";
};
export type ReceiverLeaseRuntimeDisposition = {
    readonly mode: "receiving";
    readonly generation: string;
} | {
    readonly mode: "send-only";
    readonly diagnostic: string;
};
export declare class InboxStatusStore {
    #private;
    snapshot(): InboxRuntimeStatus;
    update(update: Partial<InboxRuntimeStatus>): void;
    subscribe(listener: (status: InboxRuntimeStatus) => void): () => void;
}
export declare function projectInboxStatus(mode: PiRuntimeMode, status: InboxRuntimeStatus): InboxStatusProjection;
export declare function runInboxForMode(mode: PiRuntimeMode, pump: {
    run(signal?: AbortSignal): Promise<void>;
}, status: InboxStatusStore, signal?: AbortSignal): Promise<{
    readonly kind: "send-only";
} | {
    readonly kind: "completed";
}>;
export declare function receiverLeaseRuntimeDisposition(result: ReceiverLeaseAcquireResult): ReceiverLeaseRuntimeDisposition;
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