/**
 * `<AithosAsset>` — drop-in component for displaying Aithos-hosted
 * binary content with the simplest possible API:
 *
 *     <AithosAsset urn={cv.urn} alt="CV" className="w-full" />
 *     <AithosAsset urn={video.urn} as="video" controls />
 *     <AithosAsset urn={song.urn} as="audio" controls />
 *     <AithosAsset urn={cv.urn} as="download" filename="cv.pdf">
 *       Download my CV (PDF)
 *     </AithosAsset>
 *
 * The component handles the full lifecycle:
 *  - Fetch + decrypt via the assets client (from context or `client` prop).
 *  - Show `fallback` while loading.
 *  - Show `errorFallback` (or alt text in img-mode) on failure.
 *  - Revoke the `blob:` URL on unmount or URN change.
 *
 * For public assets attached to the Ethos public zone, you can also
 * just use the stable CloudFront URL directly (`<img src={asset.url} />`).
 * This component is meant for private regime assets that require
 * client-side decryption.
 */
import type { ReactNode, ImgHTMLAttributes, VideoHTMLAttributes, AudioHTMLAttributes, AnchorHTMLAttributes } from "react";
import type { AssetsClient } from "../assets.js";
interface AithosAssetBaseProps {
    /** Asset URN, e.g. `urn:aithos:asset:did:aithos:z6Mkr…:asset_01J…`. */
    readonly urn: string;
    /** Override the assets client from context. */
    readonly client?: AssetsClient | null;
    /** Rendered while the fetch+decrypt is in flight. */
    readonly fallback?: ReactNode;
    /** Rendered on fetch/decrypt failure. `as="img"` defaults to showing alt instead. */
    readonly errorFallback?: ReactNode;
    /** Called once the asset is decrypted and ready to display. */
    readonly onLoad?: () => void;
    /** Called when the fetch/decrypt fails. */
    readonly onError?: (err: Error) => void;
    /**
     * If `true`, keep the previous asset visible while a new URN is
     * being fetched, instead of flashing the fallback. Default `false`.
     */
    readonly keepPreviousOnUrnChange?: boolean;
}
export interface AithosImageProps extends AithosAssetBaseProps, Omit<ImgHTMLAttributes<HTMLImageElement>, "src" | "onLoad" | "onError"> {
    readonly as?: "img";
}
export interface AithosVideoProps extends AithosAssetBaseProps, Omit<VideoHTMLAttributes<HTMLVideoElement>, "src" | "onLoad" | "onError"> {
    readonly as: "video";
}
export interface AithosAudioProps extends AithosAssetBaseProps, Omit<AudioHTMLAttributes<HTMLAudioElement>, "src" | "onLoad" | "onError"> {
    readonly as: "audio";
}
export interface AithosDownloadProps extends AithosAssetBaseProps, Omit<AnchorHTMLAttributes<HTMLAnchorElement>, "href" | "onLoad" | "onError"> {
    readonly as: "download";
    /** Suggested filename in the browser's download dialog. */
    readonly filename?: string;
    readonly children?: ReactNode;
}
export type AithosAssetProps = AithosImageProps | AithosVideoProps | AithosAudioProps | AithosDownloadProps;
/**
 * One component, four media kinds. The `as` prop selects between
 * `<img>` (default), `<video>`, `<audio>`, and a styled `<a download>`.
 */
export declare function AithosAsset(props: AithosAssetProps): ReactNode;
export {};
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