import { PluginWithOptions } from 'markdown-it';

interface ThumbHashAsset {
    /**
     * The file name of the image. Will be normalized to be relative to the
     * root of the VitePress configuration file.
     */
    assetFileName: string;
    /**
     * The full file name of the image.
     */
    assetFullFileName: string;
    /**
     * The hash of the image.
     */
    assetFullHash: string;
    /**
     * The base64 encoded url safe hash of the image.
     */
    assetFileHash: string;
    /**
     * The asset URL of the image. Will be used to render as `src` attribute
     * in the HTML.
     */
    assetUrl: string;
    /**
     * The asset URL of the image with base. Will be used to render as `data-src`
     * attribute in the HTML used by unlazy.
     *
     * Value will be automatically calculated based on the `base` field
     * configured in the VitePress configuration.
     */
    assetUrlWithBase: string;
}
interface ThumbHashCalculated {
    /**
     * The thumbhash data URL of the image. Will be used to render as
     * `src` attribute in the HTML.
     */
    dataUrl: string;
    /**
     * The thumbhash data base64 of the image. Will be used to render as
     * `data-thumbhash` attribute in the HTML.
     */
    dataBase64: string;
    /**
     * The resized width of the image (thumbhash requires the image to be
     * resized to less than 100px in width or height).
     */
    width: number;
    /**
     * The original width of the image.
     */
    originalWidth: number;
    /**
     * The resized height of the image (thumbhash requires the image to
     * be resized to less than 100px in width or height).
     */
    height: number;
    /**
     * The original height of the image.
     */
    originalHeight: number;
}
type ThumbHash = ThumbHashAsset & ThumbHashCalculated;
interface ThumbnailImageThumbhashOptionsGlobPattern {
    /**
     * The glob pattern to search for the thumbhash map file.
     *
     * @default Array ['**\/.vitepress/cache/@nolebase/vitepress-plugin-thumbnail-hash/thumbhashes/map.json', '**\/thumbhashes/map.json']
     */
    mapGlobPatterns: string | string[];
}
interface ThumbnailImageThumbhashOptionsPath {
    /**
     * The path to the thumbhash map file.
     *
     * @default ''
     */
    mapFilePath: string;
}
interface ThumbnailImageThumbhashOptionsMap {
    /**
     * The thumbhash map object.
     *
     * @default {}
     */
    map: Record<string, ThumbHash>;
}
type ThumbnailImageThumbhashOptions = ThumbnailImageThumbhashOptionsGlobPattern | ThumbnailImageThumbhashOptionsPath | ThumbnailImageThumbhashOptionsMap;
interface UnlazyImagesOptions {
    /**
     * The tag name of the image element.
     *
     * @default string 'NolebaseEnhancedImg'
     */
    imgElementTag?: string;
    /**
     * The thumbhash options.
     *
     * @default { mapGlobPatterns: ['**\/.vitepress/cache/@nolebase/vitepress-plugin-thumbnail-hash/thumbhashes/map.json', '**\/thumbhashes/map.json'] }
     */
    thumbhash?: ThumbnailImageThumbhashOptions;
    /**
     * Log format not supported warning
     */
    logFormatNotSupportedWarning?: boolean;
}
/**
 * The same regexp as VitePress uses
 * https://github.com/vuejs/vitepress/blob/3113dad002e60312ca7b679cf38b887196c33303/src/shared/shared.ts#L17
 *
 * Used in https://github.com/vuejs/vitepress/blob/3113dad002e60312ca7b679cf38b887196c33303/src/node/markdown/plugins/image.ts#L19
 */
declare const EXTERNAL_URL_RE: RegExp;
declare const UnlazyImages: () => PluginWithOptions<UnlazyImagesOptions>;

export { EXTERNAL_URL_RE, type ThumbHash, type ThumbHashAsset, type ThumbHashCalculated, UnlazyImages, type UnlazyImagesOptions };