import { Binding, BindingSpec, Constructor } from '@loopback/core';
/**
 * Type definition for ArtifactOptions. These are the options supported by
 * this Booter.
 */
export declare type ArtifactOptions = {
    /**
     * Array of directories to check for artifacts.
     * Paths must be relative. Defaults to ['controllers']
     */
    dirs?: string | string[];
    /**
     * Array of file extensions to match artifact
     * files in dirs. Defaults to ['.controller.js']
     */
    extensions?: string | string[];
    /**
     * A flag to control if artifact discovery should check nested
     * folders or not. Default to true
     */
    nested?: boolean;
    /**
     * A `glob` string to use when searching for files. This takes
     * precedence over other options.
     */
    glob?: string;
};
/**
 * Defines the requirements to implement a Booter for LoopBack applications:
 * - configure()
 * - discover()
 * - load()
 *
 * A Booter will run through the above methods in order.
 */
export interface Booter {
    /**
     * Configure phase of the Booter. It should set options / defaults in this phase.
     */
    configure?(): Promise<void>;
    /**
     * Discover phase of the Booter. It should search for artifacts in this phase.
     */
    discover?(): Promise<void>;
    /**
     * Load phase of the Booter. It should bind the artifacts in this phase.
     */
    load?(): Promise<void>;
}
/**
 * Export of an array of all the Booter phases supported by the interface
 * above, in the order they should be run.
 */
export declare const BOOTER_PHASES: string[];
/**
 * Options to configure `Bootstrapper`
 */
export declare type BootOptions = {
    controllers?: ArtifactOptions;
    repositories?: ArtifactOptions;
    /**
     * Additional Properties
     */
    [prop: string]: any;
};
/**
 * Options for boot() execution
 */
export declare type BootExecutionOptions = {
    /**
     * Optional array of Booter Classes to bind to the application before running bootstrapper.
     */
    booters?: Constructor<Booter>[];
    /**
     * Filter Object for Bootstrapper
     */
    filter?: {
        /**
         * Names of booters that should be run by Bootstrapper
         */
        booters?: string[];
        /**
         * Names of phases that should be run by Bootstrapper
         */
        phases?: string[];
    };
    /**
     * Additional Properties
     */
    [prop: string]: any;
};
/**
 * Interface to describe the additions made available to an Application
 * that uses BootMixin.
 */
export interface Bootable {
    /**
     * Root directory for the project to be booted
     */
    projectRoot: string;
    /**
     * Options for boot
     */
    bootOptions?: BootOptions;
    /**
     * Boot up the project
     */
    boot(): Promise<void>;
    /**
     * Register booters
     * @param booterClasses - A list of booter classes
     */
    booters(...booterClasses: Constructor<Booter>[]): Binding[];
}
/**
 * `@booter` decorator to mark a class as a `Booter` and specify the artifact
 * namespace for the configuration of the booter
 *
 * @example
 * ```ts
 * @booter('controllers')
 * export class ControllerBooter extends BaseArtifactBooter {
 *   constructor(
 *     @inject(CoreBindings.APPLICATION_INSTANCE) public app: Application,
 *     @inject(BootBindings.PROJECT_ROOT) projectRoot: string,
 *     @config()
 *    public controllerConfig: ArtifactOptions = {},
 *   ) {
 *   // ...
 *   }
 * }
 * ```
 *
 * @param artifactNamespace - Namespace for the artifact. It will be used to
 * inject configuration from boot options. For example, the Booter class
 * decorated with `@booter('controllers')` can receive its configuration via
 * `@config()` from the `controllers` property of boot options.
 *
 * @param specs - Extra specs for the binding
 */
export declare function booter(artifactNamespace: string, ...specs: BindingSpec[]): ClassDecorator;
/**
 * Interface to describe an object that may have an array of `booters`.
 */
export interface InstanceWithBooters {
    booters?: Constructor<Booter>[];
}