/// <reference types="node" />
export interface BasePromptOptions {
    name: string | (() => string);
    type: string | (() => string);
    message: string | (() => string) | (() => Promise<string>);
    initial?: any;
    required?: boolean;
    format?(value: string): string | Promise<string>;
    result?(value: string): string | Promise<string>;
    skip?: ((state: object) => boolean | Promise<boolean>) | boolean;
    validate?(value: string): boolean | Promise<boolean> | string | Promise<string>;
    onSubmit?(name: string, value: any, prompt: Enquirer.Prompt): boolean | Promise<boolean>;
    onCancel?(name: string, value: any, prompt: Enquirer.Prompt): boolean | Promise<boolean>;
    stdin?: NodeJS.ReadStream;
    stdout?: NodeJS.WriteStream;
}
export interface Choice {
    name: string;
    message?: string;
    value?: string;
    hint?: string;
    disabled?: boolean | string;
}
export interface ArrayPromptOptions extends BasePromptOptions {
    type: 'autocomplete' | 'editable' | 'form' | 'multiselect' | 'select' | 'survey' | 'list' | 'scale' | 'rawlist' | 'expand' | 'checkbox' | 'radio' | 'question';
    choices: string[] | Choice[];
    maxChoices?: number;
    multiple?: boolean;
    initial?: number;
    delay?: number;
    separator?: boolean;
    sort?: boolean;
    linebreak?: boolean;
    edgeLength?: number;
    align?: 'left' | 'right';
    scroll?: boolean;
    suggest?: (input: string, choices: Choice[]) => Choice[];
}
export interface BooleanPromptOptions extends BasePromptOptions {
    type: 'confirm';
    initial?: boolean;
}
export interface StringPromptOptions extends BasePromptOptions {
    type: 'input' | 'invisible' | 'list' | 'password' | 'text';
    initial?: string;
    multiline?: boolean;
}
export interface NumberPromptOptions extends BasePromptOptions {
    type: 'numeral';
    min?: number;
    max?: number;
    delay?: number;
    float?: boolean;
    round?: boolean;
    major?: number;
    minor?: number;
    initial?: number;
}
export interface SnippetPromptOptions extends BasePromptOptions {
    type: 'snippet';
    newline?: string;
}
export interface SortPromptOptions extends BasePromptOptions {
    type: 'sort';
    hint?: string;
    drag?: boolean;
    numbered?: boolean;
}
export declare type PromptOptions = ArrayPromptOptions | BooleanPromptOptions | StringPromptOptions | NumberPromptOptions | SnippetPromptOptions | SortPromptOptions | BasePromptOptions;
declare class BasePrompt extends NodeJS.EventEmitter {
    constructor(options?: PromptOptions);
    render(): void;
    run(): Promise<any>;
}
declare class Enquirer<T = object> extends NodeJS.EventEmitter {
    constructor(options?: object, answers?: T);
    /**
     * Register a custom prompt type.
     *
     * @param type
     * @param fn `Prompt` class, or a function that returns a `Prompt` class.
     */
    register(type: string, fn: typeof BasePrompt | (() => typeof BasePrompt)): this;
    /**
     * Register a custom prompt type.
     */
    register(type: {
        [key: string]: typeof BasePrompt | (() => typeof BasePrompt);
    }): this;
    /**
     * Prompt function that takes a "question" object or array of question objects,
     * and returns an object with responses from the user.
     *
     * @param questions Options objects for one or more prompts to run.
     */
    prompt(questions: PromptOptions | ((this: Enquirer) => PromptOptions) | (PromptOptions | ((this: Enquirer) => PromptOptions))[]): Promise<T>;
    /**
     * Use an enquirer plugin.
     *
     * @param plugin Plugin function that takes an instance of Enquirer.
     */
    use(plugin: (this: this, enquirer: this) => void): this;
}
declare namespace Enquirer {
    function prompt<T = object>(questions: PromptOptions | ((this: Enquirer) => PromptOptions) | (PromptOptions | ((this: Enquirer) => PromptOptions))[]): Promise<T>;
    class Prompt extends BasePrompt {
    }
}
export { Enquirer };