import { Event } from '@vscode-alt/monaco-editor/esm/vs/base/common/event';
import { IStorageScope as StorageScope } from '../generated-model';
export interface IStorage {
    length: number;
    key(index: number): string;
    clear(): void;
    setItem(key: string, value: any): void;
    getItem(key: string): string;
    removeItem(key: string): void;
}
export interface IWorkspaceStorageChangeEvent {
    key: string;
    scope: StorageScope;
}
export interface IStorageChangeEvent {
    key: string;
}
export interface IStorageService {
    /**
     *
     * Emitted whenever data is updated or deleted.
     */
    readonly onDidChangeStorage?: Event<IWorkspaceStorageChangeEvent>;
    /**
     * Store a string value under the given key to local storage.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    store(key: string, value: any, scope?: StorageScope): void;
    /**
     * Swap the value of a stored element to one of the two provided
     * values and use the defaultValue if no element with the given key
     * exists.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    swap?(key: string, valueA: any, valueB: any, scope?: StorageScope, defaultValue?: any): void;
    /**
     * Delete an element stored under the provided key from local storage.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    remove(key: string, scope?: StorageScope): void;
    /**
     * Retrieve an element stored with the given key from local storage. Use
     * the provided defaultValue if the element is null or undefined.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    get(key: string, scope?: StorageScope, defaultValue?: string): string;
    /**
     * Retrieve an element stored with the given key from local storage. Use
     * the provided defaultValue if the element is null or undefined. The element
     * will be converted to a number using parseInt with a base of 10.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    getInteger(key: string, scope?: StorageScope, defaultValue?: number): number;
    /**
     * Retrieve an element stored with the given key from local storage. Use
     * the provided defaultValue if the element is null or undefined. The element
     * will be converted to a boolean.
     *
     * The optional scope argument allows to define the scope of the operation.
     */
    getBoolean(key: string, scope?: StorageScope, defaultValue?: boolean): boolean;
}
export interface IStorageMainService {
    /**
     * Emitted whenever data is udpated or deleted.
     */
    readonly onDidChangeStorage: Event<IStorageChangeEvent>;
    /**
     * Emitted when the storage is about to persist. This is the right time
     * to persist data to ensure it is stored before the application shuts
     * down.
     */
    readonly onWillSaveState: Event<void>;
    /**
     * Retrieve an element stored with the given key from storage. Use
     * the provided defaultValue if the element is null or undefined.
     */
    get(key: string, fallbackValue: string): string;
    /**
     * Retrieve an element stored with the given key from storage. Use
     * the provided defaultValue if the element is null or undefined. The element
     * will be converted to boolean.
     */
    getBoolean(key: string, fallbackValue: boolean): boolean;
    /**
     * Retrieve an element stored with the given key from storage. Use
     * the provided defaultValue if the element is null or undefined. The element
     * will be converted to a number using parseInt with a base of 10.
     */
    getInteger(key: string, fallbackValue: number): number;
    /**
     * Store a string value under the given key to storage. The value will
     * be converted to a string.
     */
    store(key: string, value: any): void;
    /**
     * Delete an element under the provided key from storage.
     */
    remove(key: string): void;
}