import type { AppBskyRichtextFacet } from "@atcute/bluesky";
/**
 * A facet represents a span of text within a string with special meaning (e.g. mentions, links, tags).
 * @see https://docs.bsky.app/docs/advanced-guides/post-richtext#rich-text-facets
 */
export declare class Facet {
    /** The original text the facet is contained within. */
    sourceText: string;
    /** The range of bytes in the source text that this facet applies to, when the source text is encoded as UTF-8.
     * Unless you know what you're doing, you should use the {@link index} property.
     */
    byteIndex: {
        /** The index of the first byte included in the facet. */
        byteStart: number;
        /** The index of the first byte excluded from the facet. */
        byteEnd: number;
    };
    private _index?;
    /** The decorations applied to the text within the facet range. */
    features: Array<FacetFeature>;
    /** The span of text this facet applies to. */
    get span(): string;
    /**
     * The range of indices within the source text that this facet applies to.
     * @property start The index of the first character included in the facet.
     * @property end The index of the first character excluded from the facet.
     */
    get index(): {
        start: number;
        end: number;
    };
    /**
     * Creates a new facet.
     * @param text The full source text.
     * @param facet The facet data.
     */
    constructor(text: string, facet: AppBskyRichtextFacet.Main);
    /**
     * Returns a record representation of the facet.
     */
    toRecord(): AppBskyRichtextFacet.Main;
}
/** Represents a decoration applied to a span of text. */
export declare class FacetFeature {
    $type: `app.bsky.richtext.facet#${string}`;
    /** Whether this facet is a mention. */
    isMention(): this is MentionFeature;
    /** Whether this facet is a link. */
    isLink(): this is LinkFeature;
    /** Whether this facet is an in-text hashtag. */
    isTag(): this is TagFeature;
    /** Represents a specific decoration applied to a span of text. */
    /** @internal */
    constructor(/** The facet type. */ $type: `app.bsky.richtext.facet#${string}`);
}
/** Represents a user mention. */
export declare class MentionFeature extends FacetFeature {
    did: string;
    $type: "app.bsky.richtext.facet#mention";
    constructor(/** The mentioned user's DID. */ did: string);
}
/** Represents a hyperlink. */
export declare class LinkFeature extends FacetFeature {
    uri: string;
    $type: "app.bsky.richtext.facet#link";
    constructor(/** The referenced link. */ uri: string);
}
/** Represents an in-text hashtag. */
export declare class TagFeature extends FacetFeature {
    tag: string;
    $type: "app.bsky.richtext.facet#tag";
    constructor(/** The hashtag, without the leading #. */ tag: string);
}