import { TRequired, TExclude } from '@cmtlyt/base';

interface BaseStorageOptions {
    dbName: string;
    autoSaveDelay: number;
    zipKeyLength: number;
}
type StorageBaseOptions = Partial<BaseStorageOptions>;
declare abstract class BaseStorage {
    #private;
    name: string;
    protected config: BaseStorageOptions;
    constructor(options?: Partial<BaseStorageOptions>);
    private _createAutoSaveInterval;
    get length(): number;
    protected abstract init(): (Record<string, any> | string) | Promise<Record<string, any> | string>;
    protected _createHook(_config: BaseStorageOptions & Record<string, any>): any;
    protected _createdHook(): any;
    protected _setItemBeforeHook(_key: string, _value: any): any | void;
    protected _setItemAfterHook(_key: string, _value: any): any;
    protected _getItemBeforeHook(_key: string): any;
    protected _getItemAfterHook(_key: string, _value: any): any | void;
    protected _removeItemBeforeHook(_key: string): any;
    protected _removeItemAfterHook(_key: string): any;
    protected _clearBeforeHook(): any;
    protected _clearAfterHook(): any;
    protected _getKeysBeforeHook(): any;
    protected _getKeysAfterHook(_keys: string[]): string[] | void;
    protected autoSave(_data: string): void;
    protected getDataSchema(): Promise<string>;
    setItem(key: string, value: any): Promise<void>;
    getItem(key: string): Promise<any>;
    removeItem(key: string): Promise<void>;
    clear(): Promise<void>;
    getKeys(): Promise<string[]>;
}

interface IndexedDBStorageOptions extends TRequired<StorageBaseOptions, 'dbName'> {
}
declare class IndexedDBStorage extends BaseStorage {
    #private;
    name: string;
    constructor(options: IndexedDBStorageOptions);
    protected autoSave(data: string): void;
    protected init(): Promise<unknown>;
    forceSave(): Promise<unknown>;
}

interface LocalStorageOptions extends TRequired<StorageBaseOptions, 'dbName'> {
}
declare class LocalStorage extends BaseStorage {
    name: string;
    constructor(options: LocalStorageOptions);
    protected init(): {};
    protected autoSave(data: string): void;
}

interface MemoryStorageOptions extends TExclude<StorageBaseOptions, 'autoSaveDelay'> {
}
declare class MemoryStorage extends BaseStorage {
    name: string;
    constructor(options: MemoryStorageOptions);
    protected init(): {};
    protected autoSave(_data: string): void;
}

interface SessionStorageOptions extends TRequired<StorageBaseOptions, 'dbName'> {
}
declare class SessionStorage extends BaseStorage {
    name: string;
    constructor(options: SessionStorageOptions);
    protected init(): {};
    protected autoSave(data: string): void;
}

export { IndexedDBStorage, LocalStorage, MemoryStorage, SessionStorage };