import type { Script, Stylesheet } from "./page.js";
export declare const MessageType: {
    readonly Removed: "removed";
    readonly Expired: "expired";
    readonly Updated: "updated";
    readonly ScriptsAdded: "scripts_added";
    readonly StylesheetsAdded: "stylesheets_added";
};
export type MessageType = (typeof MessageType)[keyof typeof MessageType];
export declare const MessageReason: {
    readonly Removed: "This page has been removed";
    readonly Expired: "This page has expired";
};
export type MessageReason = (typeof MessageReason)[keyof typeof MessageReason];
interface BaseMessage {
    type: MessageType;
}
export interface RemovedMessage extends BaseMessage {
    type: typeof MessageType.Removed;
    message: string;
}
export interface ExpiredMessage extends BaseMessage {
    type: typeof MessageType.Expired;
    message: string;
}
export interface UpdatedMessage extends BaseMessage {
    type: typeof MessageType.Updated;
    body: string;
    inlineScripts: {
        content: string;
    }[];
}
export interface ScriptsAddedMessage extends BaseMessage {
    type: typeof MessageType.ScriptsAdded;
    externalScripts: {
        src: string;
    }[];
    inlineScripts: {
        content: string;
    }[];
}
export interface StylesheetsAddedMessage extends BaseMessage {
    type: typeof MessageType.StylesheetsAdded;
    stylesheets: Stylesheet[];
}
export type PageMessage = RemovedMessage | ExpiredMessage | UpdatedMessage | ScriptsAddedMessage | StylesheetsAddedMessage;
export declare const MessageFactory: {
    removed(reason?: "This page has been removed"): RemovedMessage;
    expired(reason?: "This page has expired"): ExpiredMessage;
    updated(body: string, scripts: Script[]): UpdatedMessage;
    scriptsAdded(scripts: Script[]): ScriptsAddedMessage;
    stylesheetsAdded(stylesheets: Stylesheet[]): StylesheetsAddedMessage;
};
export declare function serializeMessage(msg: PageMessage): string;
export {};
//# sourceMappingURL=message.d.ts.map