/**
 * Strategy seam for the optional accounting-periods service. Core
 * imports `PeriodsStrategy` type-only + `NO_PERIODS` stub; the real
 * `loadPeriods` / `chainAnchor` / `assertTsWritable` /
 * `validatePeriodName` / `appendPeriodLedgerEntry` functions are
 * only reachable via `withPeriods()` in `./active.ts`.
 *
 * Applications that never call `vault.closePeriod()` /
 * `vault.openPeriod()` ship none of the ~363 LOC.
 *
 * @internal
 */
import type { EncryptedEnvelope, NoydbStore } from '../../kernel/types.js';
import type { LedgerStore } from '../../with-commit/history/ledger/store.js';
import type { PeriodRecord } from './periods.js';
/**
 * @internal
 */
export interface PeriodsStrategy {
    loadPeriods(adapter: NoydbStore, vault: string, decrypt: (envelope: EncryptedEnvelope) => Promise<PeriodRecord>): Promise<PeriodRecord[]>;
    chainAnchor(records: readonly PeriodRecord[]): Promise<{
        priorPeriodName?: string;
        priorPeriodHash: string;
    }>;
    assertTsWritable(existing: {
        ts: string | null;
        record: Record<string, unknown> | null;
    } | null, incoming: Record<string, unknown> | null, periods: readonly PeriodRecord[]): void;
    validatePeriodName(name: string, existing: readonly PeriodRecord[]): void;
    appendPeriodLedgerEntry(ledger: LedgerStore | null, actor: string, envelope: EncryptedEnvelope, periodName: string, collection?: string): Promise<void>;
}
export declare const NO_PERIODS: PeriodsStrategy;