import Promise = require("bluebird");
export interface ScriptState {
    _callbacks?: Array<() => void>;
    hasLoaded: boolean;
    wasRejected: boolean;
    error?: any;
    promise: Promise<ScriptState>;
    tag: HTMLScriptElement;
}
/**
 * map for script names against utility objects
 * @type {Map<string, ScriptState>}
 */
export declare const loadedScripts: Map<string, ScriptState>;
/**
 * script tags to be generated by the cache method
 * @type {{}}
 */
export declare const scriptTags: ScriptTags;
export interface Scripts {
    [name: string]: string;
}
export declare type Callback = (error: any, result?: any) => void;
export declare type AllCallback = (errors: any[], results?: any[]) => void;
export interface ScriptTag {
    name: string;
    script: string;
    tag: HTMLScriptElement;
    onLoad(callback: Callback): void;
}
export interface ScriptTags {
    [name: string]: ScriptTag;
}
/**
 *
 * @param scripts {Scripts} - An object with all the scripts required. Keys are script names, values are URLs.
 */
export declare function cache(scripts: Scripts): void;
export declare function getScriptStub(name: string): ScriptTag;
/**
 * Callback to be fired when each script has loaded.
 * @param name {string} - The name of the string that has just loaded.
 * @param callback {Callback} - A callback to execute when the script has loaded.
 */
export declare function onLoad(name: string, callback: Callback): void;
/**
 * Callback to be fired when all scripts have loaded
 * @param callback {Function} - The callback to be executed.
 */
export declare function onAllLoad(callback: AllCallback): void;
/**
 * Get a script from a remote location.
 * @param name {string} - The name of the script to be retrieved.
 * @param url {string} - The URL/location of the script to be retrieved.
 */
export declare function getScript(url: string, name: string): ScriptState;
export default cache;