import { RewindTokenStore } from './tokens.js';
import type { RewindAnchor, RewindApplyResult, RewindConversationPort, RewindEventSink, RewindPlan, RewindScope, RewindWorkspacePort } from './types.js';
/** Thrown when rewind.apply is handed an invalid/expired/mismatched confirm token. */
export declare class RewindTokenError extends Error {
    constructor(message: string);
}
/** The two ways to authorize an apply: a confirm token from plan, or `confirm: true`. */
export declare const REWIND_CONFIRM_OPTIONS: readonly ["confirm", "confirmToken"];
export interface UnifiedRewindServiceDeps {
    /** The workspace-checkpoint store port. Absent → files rewind is honestly unavailable. */
    readonly workspace?: RewindWorkspacePort | null;
    /** The conversation store port. Absent → conversation rewind is honestly unavailable. */
    readonly conversation?: RewindConversationPort | null;
    /** Receipt event sink. Absent → no events emitted (a graceful degrade). */
    readonly emit?: RewindEventSink | null;
    readonly now?: () => number;
    readonly tokens?: RewindTokenStore;
}
export interface RewindApplyOptions {
    readonly confirm?: boolean | undefined;
    readonly confirmToken?: string | undefined;
}
export declare class UnifiedRewindService {
    private readonly workspace;
    private readonly conversation;
    private readonly emitSink;
    private readonly now;
    private readonly tokens;
    constructor(deps?: UnifiedRewindServiceDeps);
    /** Dry-run preview of a rewind + a single-use confirm token authorizing it. */
    plan(anchor: RewindAnchor, scope: RewindScope): Promise<RewindPlan>;
    /** Confirm-gated apply. Unconfirmed → a non-error refusal; bad token → RewindTokenError. */
    apply(anchor: RewindAnchor, scope: RewindScope, opts?: RewindApplyOptions): Promise<RewindApplyResult>;
    private resolveCheckpoint;
    private planFiles;
    private planConversation;
    private applyFiles;
    private applyConversation;
    private emitEvent;
}
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