import type { EndOfLine } from './utils';
interface LyricsInfo {
    /** al, Album where the song is from */
    album?: string;
    /** ar, Lyrics artist */
    artist?: string;
    /** au, Creator of the Songtext */
    author?: string;
    /** ti, Lyrics (song) title */
    title?: string;
    /** by, Creator of the LRC file */
    creator?: string;
    /** +/- Overall timestamp adjustment in seconds, + shifts time up, - shifts down i.e. A positive value let lyrics appear sooner, a negative value delays the lyrics */
    offset?: number;
    /** How long the song is */
    length?: string;
    /** re, The player or editor that created the LRC file */
    editor?: string;
    /** ve, version of program */
    version?: string;
}
export interface LyricsLine {
    time: number;
    text: string;
}
interface LyricsMergeOption {
    override?: boolean;
    resolveInfo?: (original: LyricsInfo, affiliate: LyricsInfo) => LyricsInfo;
    resolveConflict?: (original: string, affiliate: string) => string;
}
interface LyricsOption {
    resolveConflict?: 'merge' | 'preserve' | 'overwrite' | ((line1: string, line2: string) => string);
}
interface LyricsParseOption {
    eol: EndOfLine;
    resolveConflict?: LyricsOption['resolveConflict'];
}
export declare class Lyrics {
    private _offset;
    private _option;
    eol: EndOfLine;
    info: LyricsInfo;
    lines: LyricsLine[];
    constructor(lyrics?: string | Lyrics);
    constructor(lyrics: string | Lyrics, option?: LyricsOption);
    clone(): Lyrics;
    toString(): string;
    at(index: number): LyricsLine | undefined;
    getIndexByTime(time: number): number;
    atTime(time: number): LyricsLine | undefined;
    setOffset(sec: number): void;
    merge(lyrics: string | Lyrics, options?: LyricsMergeOption): this;
    insert(lines: LyricsLine | LyricsLine[]): this;
    remove(line: LyricsLine | string | RegExp): this;
    replace(oldLine: LyricsLine, newLine: LyricsLine): Lyrics;
    replace(oldLine: string, newLine: string): Lyrics;
    replace(oldLine: RegExp, newLine: LyricsLine): Lyrics;
    replace(oldLine: RegExp, newLine: string): Lyrics;
    setInfo(info: LyricsInfo): this;
    static stringify(lyrics: Lyrics): string;
    static parse(text: string, option?: LyricsParseOption): {
        info: LyricsInfo;
        lines: LyricsLine[];
    };
}
export {};