import type { Glyph } from 'workers/process/glyph/familySource.js';
import type { ImageExtensions } from 'style/style.spec.js';
import type Session from './session.js';
import type TexturePack from './texturePack.js';
/** Metadata for an image source */
export type ImageMetadata = Record<string, Glyph>;
/** Full metadata for an image source including name */
export interface ImageSourceMetadata {
    name: string;
    metadata: ImageMetadata;
}
/**
 * # ImageSource
 *
 * ## Description
 * A collection of images relating to a single source
 */
export default class ImageSource {
    active: boolean;
    name: string;
    path: string;
    fileType: ImageExtensions;
    metadata: ImageMetadata;
    session: Session;
    texturePack: TexturePack;
    /**
     * @param name - the name of the source
     * @param path - the path to the source
     * @param texturePack - the texture pack to store the glyphs/images into
     * @param session - the session
     * @param fileType - the file type
     */
    constructor(name: string, path: string, texturePack: TexturePack, session: Session, fileType?: ImageExtensions);
    /**
     * Build the source
     * @param _mapID - the id of the map to build for
     * @returns the image metadata (we don't need to early ship this)
     */
    build(_mapID: string): Promise<undefined | ImageSourceMetadata>;
    /**
     * Add an image to the source collection
     * @param mapID - the id of the map to build for
     * @param name - the name of the image
     * @param path - the path to the image
     * @returns the image metadata if successful
     */
    addImage(mapID: string, name: string, path: string): Promise<undefined | ImageSourceMetadata>;
    /**
     * Fetch an image
     * @param path - the path to the image or metadata
     * @param mapID - the id of the map
     * @returns the image or metadata
     */
    _fetch<T>(path: string, mapID: string): Promise<undefined | T>;
}