/**
 * @category Events
 */
import { LoadingGraphError } from './errors.models';
export type EventType = 'CdnMessageEvent' | 'StartEvent' | 'SourceLoadingEvent' | 'SourceLoadedEvent' | 'SourceParsedEvent' | 'InstallDoneEvent' | 'UnauthorizedEvent' | 'UrlNotFoundEvent' | 'ParseErrorEvent' | 'CdnLoadingGraphErrorEvent';
/**
 * @category Events
 */
export type EventStatus = 'Pending' | 'Succeeded' | 'Failed' | 'None';
/**
 * Base class of events.
 *
 * @category Events
 */
export type CdnEvent = {
    step: EventType;
    id: string;
    text: string;
    status: EventStatus;
};
/**
 * @category Events
 */
export declare function isCdnEvent(event: unknown): event is CdnEvent;
/**
 * Generic custom CDN event.
 *
 * @category Events
 */
export declare class CdnMessageEvent implements CdnEvent {
    readonly id: string;
    readonly text: string;
    readonly status: EventStatus;
    readonly step = "CdnMessageEvent";
    constructor(id: string, text: string, status?: EventStatus);
}
/**
 * Base class for CDN's HTTP request event
 *
 * @category Events
 */
export type CdnFetchEvent = CdnEvent & {
    id: string;
    assetId: string;
    url: string;
};
/**
 * Event emitted when starting to fetch a script.
 *
 * @category Events
 */
export declare class StartEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly step = "StartEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Pending";
    constructor(targetName: string, assetId: string, url: string);
}
/**
 * Event emitted when a script's content is transferring over HTTP network.
 *
 * @category Events
 */
export declare class SourceLoadingEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly progress: ProgressEvent<XMLHttpRequestEventTarget>;
    readonly step = "SourceLoadingEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Pending";
    constructor(targetName: string, assetId: string, url: string, progress: ProgressEvent<XMLHttpRequestEventTarget>);
}
/**
 * Event emitted when a script's content transfer over HTTP network has completed.
 *
 * @category Events
 */
export declare class SourceLoadedEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly progress: ProgressEvent<XMLHttpRequestEventTarget>;
    readonly step = "SourceLoadedEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Pending";
    constructor(targetName: string, assetId: string, url: string, progress: ProgressEvent<XMLHttpRequestEventTarget>);
}
/**
 * Event emitted when a script's content has been parsed (installed).
 *
 * @category Events
 */
export declare class SourceParsedEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly step = "SourceParsedEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Succeeded";
    constructor(targetName: string, assetId: string, url: string);
}
/**
 * Event emitted when an {@link Unauthorized} error occurred.
 *
 * @category Events
 */
export declare class UnauthorizedEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly step = "UnauthorizedEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Failed";
    constructor(targetName: string, assetId: string, url: string);
}
/**
 * Event emitted when an {@link UrlNotFound} error occurred.
 *
 * @category Events
 */
export declare class UrlNotFoundEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly step = "UrlNotFoundEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Failed";
    constructor(targetName: string, assetId: string, url: string);
}
/**
 * Event emitted when an {@link SourceParsingFailed} error occurred.
 *
 * @category Events
 */
export declare class ParseErrorEvent implements CdnFetchEvent {
    readonly targetName: string;
    readonly assetId: string;
    readonly url: string;
    readonly step = "ParseErrorEvent";
    readonly id: string;
    readonly text: string;
    readonly status = "Failed";
    constructor(targetName: string, assetId: string, url: string);
}
/**
 * Event emitted when an {@link LoadingGraphError} error occurred.
 *
 * @category Events
 */
export declare class CdnLoadingGraphErrorEvent implements CdnEvent {
    readonly error: LoadingGraphError;
    readonly id = "loading-graph";
    readonly step = "CdnLoadingGraphErrorEvent";
    readonly text = "Failed to retrieve the loading graph";
    readonly status = "Failed";
    constructor(error: LoadingGraphError);
}
/**
 * Event emitted when an installation is done ({@link install}, {@link Client.install}).
 *
 * @category Events
 */
export declare class InstallDoneEvent implements CdnEvent {
    readonly id = "InstallDoneEvent";
    readonly step = "InstallDoneEvent";
    readonly text = "Installation successful";
    readonly status = "Succeeded";
}