import type * as unifont from 'unifont';
import type { FontFileReader } from '../definitions.js';
import type { FamilyProperties, FontProvider, FontProviderInitContext, ResolveFontOptions, Style, Weight } from '../types.js';
type RawSource = string | URL | {
    url: string | URL;
    tech?: string | undefined;
};
interface Variant extends FamilyProperties {
    /**
     * Font [sources](https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/src). It can be a path relative to the root, a package import, or a URL. URLs are particularly useful if you inject local fonts through an integration.
     *
     * We recommend not putting your font files in [the `public/` directory](/en/reference/configuration-reference/#publicdir). Since Astro will copy these files into that folder at build time, this will result in duplicated files
     * in your build output. Instead, store them somewhere else in your project, such as in `src/`.
     *
     * You can also specify a [tech](https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/src#tech) by providing objects:
     *
     * ```js
     * src: [{ url:"./src/assets/fonts/MyFont.woff2", tech: "color-COLRv1" }]
     * ```
     */
    src: [RawSource, ...Array<RawSource>];
    /**
     * A [font weight](https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight). If the associated font is a [variable font](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_fonts/Variable_fonts_guide), you can specify a range of weights:
     *
     * ```js
     * weight: "100 900"
     * ```
     *
     * When the value is not set, by default Astro will try to infer the value based on the first source.
     */
    weight?: Weight | undefined;
    /**
     * A [font style](https://developer.mozilla.org/en-US/docs/Web/CSS/font-style).
     *
     * When the value is not set, by default Astro will try to infer the value based on the first source.
     */
    style?: Style | undefined;
}
export interface LocalFamilyOptions {
    /**
     * The `options.variants` property is required. Each variant represents a [`@font-face` declaration](https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/) and requires a `src`.
     */
    variants: [Variant, ...Array<Variant>];
}
export declare class LocalFontProvider implements FontProvider<LocalFamilyOptions> {
    #private;
    name: string;
    config?: Record<string, any> | undefined;
    constructor({ fontFileReader, }: {
        fontFileReader: FontFileReader;
    });
    init(context: Pick<FontProviderInitContext, 'root'>): void;
    resolveFont(options: ResolveFontOptions<LocalFamilyOptions>): {
        fonts: Array<unifont.FontFaceData>;
    };
}
export {};