import { type Recommendation } from '../context/recommendations.js';
import type { SqliteDatabase } from '../db/adapter.js';
import { type LedgerProjection } from '../ledger/projection.js';
export interface CheckpointMutationResult {
    readonly runId: string;
    readonly acceptedThrough: number;
    readonly localSequences: readonly number[];
    readonly sourceSequences: readonly (number | null)[];
    readonly eventIds: readonly string[];
    readonly runStatus: 'active';
    readonly intakeStatus: 'ready' | 'exhausted';
    readonly taskProfile: {
        readonly taskType: string | null;
        readonly target: string | null;
        readonly expected: string | null;
        readonly constraints: string | null;
        readonly source: 'akinator+ledger-revisions';
    };
    readonly profileHash: string;
    readonly projection: LedgerProjection;
    readonly preliminaryRecommendations: readonly Recommendation[];
    readonly characterBudget: number;
}
export interface CheckpointMutationPort {
    checkpoint(input: unknown): CheckpointMutationResult | PromiseLike<CheckpointMutationResult>;
}
export declare class CheckpointMutationService {
    private readonly database;
    private readonly now;
    constructor(database: SqliteDatabase, now?: () => string);
    checkpoint(input: unknown): CheckpointMutationResult;
}
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