import { type DurableJournal, type JournalRecoveryState } from "@claudexor/journal";
import type { ControlJournalValidation } from "@claudexor/schema";
import type { JournalProjectionDescriptor, JournalProjectionSlot } from "./journal-projection.js";
export interface ProjectionRegistration<T = unknown> {
    descriptor: JournalProjectionDescriptor<T>;
    slot: ProjectionSlot<T>;
}
export declare function prepareProjectionSlots(registrations: Iterable<ProjectionRegistration>, journal: DurableJournal): {
    status: ControlJournalValidation["projectionStatus"];
    recovery: Extract<JournalRecoveryState, {
        status: "recovery_required";
    }> | null;
};
export declare class ProjectionSlot<T> implements JournalProjectionSlot<T> {
    private readonly recovery;
    private value;
    private preparedValue;
    private generationValue;
    constructor(recovery: () => JournalRecoveryState);
    current(): T;
    prepared(): T;
    generation(): number;
    bind(value: T, generation: number): void;
    bindPrepared(value: T): void;
    activate(generation: number): void;
    clear(): void;
}
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