/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { analytics, json, logging } from '@angular-devkit/core';
import { AngularWorkspace } from '../utilities/config';
/**
 * Value type of arguments.
 */
export declare type Value = number | string | boolean | (number | string | boolean)[];
/**
 * An object representing parsed arguments from the command line.
 */
export interface Arguments {
    [argName: string]: Value | undefined;
    /**
     * Extra arguments that were not parsed. Will be omitted if all arguments were parsed.
     */
    '--'?: string[];
}
/**
 * The base interface for Command, understood by the command runner.
 */
export interface CommandInterface<T extends Arguments = Arguments> {
    printHelp(options: T): Promise<number>;
    printJsonHelp(options: T): Promise<number>;
    validateAndRun(options: T): Promise<number>;
}
/**
 * Command constructor.
 */
export interface CommandConstructor {
    new (context: CommandContext, description: CommandDescription, logger: logging.Logger): CommandInterface;
}
/**
 * A command runner context.
 */
export interface CommandContext {
    currentDirectory: string;
    root: string;
    workspace?: AngularWorkspace;
    analytics?: analytics.Analytics;
}
/**
 * Value types of an Option.
 */
export declare enum OptionType {
    Any = "any",
    Array = "array",
    Boolean = "boolean",
    Number = "number",
    String = "string"
}
/**
 * An option description. This is exposed when using `ng --help=json`.
 */
export interface Option {
    /**
     * The name of the option.
     */
    name: string;
    /**
     * A short description of the option.
     */
    description: string;
    /**
     * The type of option value. If multiple types exist, this type will be the first one, and the
     * types array will contain all types accepted.
     */
    type: OptionType;
    /**
     * {@see type}
     */
    types?: OptionType[];
    /**
     * If this field is set, only values contained in this field are valid. This array can be mixed
     * types (strings, numbers, boolean). For example, if this field is "enum: ['hello', true]",
     * then "type" will be either string or boolean, types will be at least both, and the values
     * accepted will only be either 'hello' or true (not false or any other string).
     * This mean that prefixing with `no-` will not work on this field.
     */
    enum?: Value[];
    /**
     * If this option maps to a subcommand in the parent command, will contain all the subcommands
     * supported. There is a maximum of 1 subcommand Option per command, and the type of this
     * option will always be "string" (no other types). The value of this option will map into
     * this map and return the extra information.
     */
    subcommands?: {
        [name: string]: SubCommandDescription;
    };
    /**
     * Aliases supported by this option.
     */
    aliases: string[];
    /**
     * Whether this option is required or not.
     */
    required?: boolean;
    /**
     * Format field of this option.
     */
    format?: string;
    /**
     * Whether this option should be hidden from the help output. It will still show up in JSON help.
     */
    hidden?: boolean;
    /**
     * Default value of this option.
     */
    default?: string | number | boolean;
    /**
     * If this option can be used as an argument, the position of the argument. Otherwise omitted.
     */
    positional?: number;
    /**
     * Smart default object.
     */
    $default?: OptionSmartDefault;
    /**
     * Whether or not to report this option to the Angular Team, and which custom field to use.
     * If this is falsey, do not report this option.
     */
    userAnalytics?: number;
    /**
     * Deprecation. If this flag is not false a warning will be shown on the console. Either `true`
     * or a string to show the user as a notice.
    */
    deprecated?: boolean | string;
}
/**
 * Scope of the command.
 */
export declare enum CommandScope {
    InProject = "in",
    OutProject = "out",
    Everywhere = "all",
    Default = "in"
}
/**
 * A description of a command and its options.
 */
export interface SubCommandDescription {
    /**
     * The name of the subcommand.
     */
    name: string;
    /**
     * Short description (1-2 lines) of this sub command.
     */
    description: string;
    /**
     * A long description of the sub command, in Markdown format.
     */
    longDescription?: string;
    /**
     * Additional notes about usage of this sub command, in Markdown format.
     */
    usageNotes?: string;
    /**
     * List of all supported options.
     */
    options: Option[];
    /**
     * Aliases supported for this sub command.
     */
    aliases: string[];
}
/**
 * A description of a command, its metadata.
 */
export interface CommandDescription extends SubCommandDescription {
    /**
     * Scope of the command, whether it can be executed in a project, outside of a project or
     * anywhere.
     */
    scope: CommandScope;
    /**
     * Whether this command should be hidden from a list of all commands.
     */
    hidden: boolean;
    /**
     * The constructor of the command, which should be extending the abstract Command<> class.
     */
    impl: CommandConstructor;
}
export interface OptionSmartDefault {
    $source: string;
    [key: string]: json.JsonValue;
}
export interface CommandDescriptionMap {
    [key: string]: CommandDescription;
}