import { IHttpContext } from "../http/context.js";
import { HttpRouter } from '../index.js';
import { IRouterOptions } from '../http/router/contracts.js';
export interface IFileinfo {
    size: number;
    modified: Date;
    checksome: string;
    mime: string;
}
export interface IHttpAssetOpts {
    root: string;
    files: Array<string | {
        path: string;
        mime: string;
    }>;
    prefix: string;
    cache: boolean;
    debug: boolean;
    allowRange?: boolean;
}
export declare class HttpAsset {
    readonly opts: IHttpAssetOpts;
    store: Record<string, any>;
    maxAgeSeconds: number;
    constructor(opts: IHttpAssetOpts);
    setup(): Promise<void>;
    routes(options?: Partial<IRouterOptions>): HttpRouter<import("../http/router/contracts.js").RouteHandlerCallback>;
    /**
     * caution: returns ref to object
     * @param file
     * @returns
     */
    info(file: string): Promise<IFileinfo | null>;
    streamOptions(ctx: IHttpContext): any;
    /**
     * @unsafe does not normalize paths
     * @param ctx
     * @param file
     * @param head
     * @returns
     */
    file(ctx: IHttpContext, file: IHttpAssetFile, head?: boolean): Promise<void>;
    css(ctx: IHttpContext, file: string): Promise<void>;
    js(ctx: IHttpContext, file: string): Promise<void>;
    image(ctx: IHttpContext, file: string, type?: string): Promise<void>;
    hasAsset(relativePath: string): Promise<boolean>;
}
export interface IHttpAssetFile {
    path: string;
    mime?: string;
}
export interface IHttpAssetMiddlewareOpts {
    root: string;
    prefix?: string;
    index?: string;
    debug: boolean;
    cache: boolean;
    maxAgeSeconds: number;
}
export declare class HttpAssetMiddleware {
    readonly opts: IHttpAssetMiddlewareOpts;
    store: Record<string, any>;
    maxAgeSeconds: number;
    constructor(opts: IHttpAssetMiddlewareOpts);
    static middleware(opts: IHttpAssetMiddlewareOpts): (ctx: IHttpContext, next: any) => Promise<void>;
    get prefix(): string;
    handle(ctx: IHttpContext, next: any): Promise<void>;
    /**
    * caution: returns ref to object
    * @param file
    * @returns
    */
    info(file: string): Promise<IFileinfo | null>;
    streamOptions(ctx: IHttpContext): any;
    file(ctx: IHttpContext, file: IHttpAssetFile, head?: boolean): Promise<false | undefined>;
}