import { Tone } from "../Tone";
import { ToneAudioBuffer } from "./ToneAudioBuffer";
export interface ToneAudioBuffersUrlMap {
    [name: string]: string | AudioBuffer | ToneAudioBuffer;
    [name: number]: string | AudioBuffer | ToneAudioBuffer;
}
interface ToneAudioBuffersOptions {
    urls: ToneAudioBuffersUrlMap;
    onload: () => void;
    onerror?: (error: Error) => void;
    baseUrl: string;
}
/**
 * A data structure for holding multiple buffers in a Map-like datastructure.
 *
 * @example
 * //load a whole bank of piano samples
 * var pianoSamples = new ToneAudioBuffers({
 * 	"C4" : "path/to/C4.mp3"
 * 	"C#4" : "path/to/C#4.mp3"
 * 	"D4" : "path/to/D4.mp3"
 * 	"D#4" : "path/to/D#4.mp3"
 * }, function(){
 * 	//play one of the samples when they all load
 * 	player.buffer = pianoSamples.get("C4");
 * 	player.start();
 * });
 * @example
 * //To pass in additional parameters in the second parameter
 * var buffers = new ToneAudioBuffers(urls, {
 * 	"onload" : callback,
 * 	"baseUrl" : "../path/to/audio/"
 * })
 * @category Core
 */
export declare class ToneAudioBuffers extends Tone {
    readonly name: string;
    /**
     * All of the buffers
     */
    private _buffers;
    /**
     * A path which is prefixed before every url.
     */
    baseUrl: string;
    /**
     * Keep track of the number of loaded buffers
     */
    private _loadingCount;
    /**
     * @param  urls  An object literal or array of urls to load.
     * @param onload  The callback to invoke when the buffers are loaded.
     * @param baseUrl A prefix url to add before all the urls
     */
    constructor(urls?: ToneAudioBuffersUrlMap, onload?: () => void, baseUrl?: string);
    constructor(options?: Partial<ToneAudioBuffersOptions>);
    static getDefaults(): ToneAudioBuffersOptions;
    /**
     * True if the buffers object has a buffer by that name.
     * @param  name  The key or index of the buffer.
     */
    has(name: string | number): boolean;
    /**
     * Get a buffer by name. If an array was loaded,
     * then use the array index.
     * @param  name  The key or index of the buffer.
     */
    get(name: string | number): ToneAudioBuffer;
    /**
     * A buffer was loaded. decrement the counter.
     */
    private _bufferLoaded;
    /**
     * If the buffers are loaded or not
     */
    readonly loaded: boolean;
    /**
     * Add a buffer by name and url to the Buffers
     * @param  name      A unique name to give the buffer
     * @param  url  Either the url of the bufer, or a buffer which will be added with the given name.
     * @param  callback  The callback to invoke when the url is loaded.
     */
    add(name: string | number, url: string | AudioBuffer | ToneAudioBuffer, callback?: () => void): this;
    dispose(): this;
}
export {};