/**
 * @license
 * Copyright 2025 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import { DataPortSchemaObject, FromSchema, TypedArraySchemaOptions } from "@workglow/util/schema";
import { type ITabularMigration, type ITabularMigrationApplier } from "../migrations";
import { BaseTabularStorage, ClientProvidedKeysOption, KeyGenerationStrategy } from "./BaseTabularStorage";
import { AnyTabularStorage, AutoGeneratedKeys, CoveringIndexQueryOptions, DeleteSearchCriteria, InsertEntity, QueryOptions, SearchCriteria, SimplifyPrimaryKey, TabularChangePayload, TabularSubscribeOptions } from "./ITabularStorage";
export declare const FS_FOLDER_TABULAR_REPOSITORY: import("@workglow/util").ServiceToken<AnyTabularStorage>;
/** Tabular repository where each row is stored as a JSON file in a directory. */
export declare class FsFolderTabularStorage<Schema extends DataPortSchemaObject, PrimaryKeyNames extends ReadonlyArray<keyof Schema["properties"]>, Entity = FromSchema<Schema, TypedArraySchemaOptions>, PrimaryKey = SimplifyPrimaryKey<Entity, PrimaryKeyNames>, Value = Omit<Entity, PrimaryKeyNames[number] & keyof Entity>, InsertType = InsertEntity<Entity, AutoGeneratedKeys<Schema>>> extends BaseTabularStorage<Schema, PrimaryKeyNames, Entity, PrimaryKey, Value, InsertType> {
    private folderPath;
    private autoIncrementCounter;
    private pollingManager;
    /** `indexes` is accepted for shape compatibility but is unused here. */
    constructor(folderPath: string, schema: Schema, primaryKeyNames: PrimaryKeyNames, indexes?: readonly (keyof NoInfer<Entity> | readonly (keyof NoInfer<Entity>)[])[], clientProvidedKeys?: ClientProvidedKeysOption, tabularMigrations?: ReadonlyArray<ITabularMigration>);
    setupDirectory(): Promise<void>;
    setupDatabase(): Promise<void>;
    getMigrationApplier(): ITabularMigrationApplier | null;
    protected generateKeyValue(columnName: string, strategy: KeyGenerationStrategy): string | number;
    put(entity: InsertType): Promise<Entity>;
    putBulk(entities: InsertType[]): Promise<Entity[]>;
    get(key: PrimaryKey): Promise<Entity | undefined>;
    delete(value: PrimaryKey | Entity): Promise<void>;
    getAll(): Promise<Entity[] | undefined>;
    deleteAll(): Promise<void>;
    size(): Promise<number>;
    getOffsetPage(offset: number, limit: number): Promise<Entity[] | undefined>;
    private getFilePath;
    query(_criteria: SearchCriteria<Entity>, _options?: QueryOptions<Entity>): Promise<Entity[] | undefined>;
    queryIndex<K extends keyof Entity & string>(_criteria: SearchCriteria<Entity>, _options: CoveringIndexQueryOptions<Entity, K>): Promise<Pick<Entity, K>[]>;
    deleteSearch(_criteria: DeleteSearchCriteria<Entity>): Promise<void>;
    /** Lazy-init so all subscriptions share a single polling loop per interval. */
    private getPollingManager;
    /** Filesystem has no native change notifications; we poll. */
    subscribeToChanges(callback: (change: TabularChangePayload<Entity>) => void, options?: TabularSubscribeOptions): () => void;
    destroy(): void;
}
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