import { type InspectOptions } from "node:util";
import type { FetchedTranscript, FetchedTranscriptSnippet } from "./transcripts.js";
export declare abstract class Formatter {
    abstract formatTranscript(transcript: FetchedTranscript, options?: unknown): string;
    abstract formatTranscripts(transcripts: FetchedTranscript[], options?: unknown): string;
}
export declare class PrettyPrintFormatter extends Formatter {
    formatTranscript(transcript: FetchedTranscript, options?: InspectOptions): string;
    formatTranscripts(transcripts: FetchedTranscript[], options?: InspectOptions): string;
}
export declare class JSONFormatter extends Formatter {
    formatTranscript(transcript: FetchedTranscript, options?: {
        replacer?: (key: string, value: unknown) => unknown;
        space?: number | string;
    }): string;
    formatTranscripts(transcripts: FetchedTranscript[], options?: {
        replacer?: (key: string, value: unknown) => unknown;
        space?: number | string;
    }): string;
}
export declare class TextFormatter extends Formatter {
    formatTranscript(transcript: FetchedTranscript): string;
    formatTranscripts(transcripts: FetchedTranscript[]): string;
}
declare abstract class TextBasedFormatter extends TextFormatter {
    protected abstract formatTranscriptHeader(lines: string[]): string;
    protected abstract formatTranscriptLine(index: number, timeText: string, snippet: FetchedTranscriptSnippet): string;
    protected abstract timestampSeparator: "," | ".";
    formatTranscript(transcript: FetchedTranscript): string;
}
export declare class SRTFormatter extends TextBasedFormatter {
    protected timestampSeparator: ",";
    protected formatTranscriptHeader(lines: string[]): string;
    protected formatTranscriptLine(index: number, timeText: string, snippet: FetchedTranscriptSnippet): string;
}
export declare class WebVTTFormatter extends TextBasedFormatter {
    protected timestampSeparator: ".";
    protected formatTranscriptHeader(lines: string[]): string;
    protected formatTranscriptLine(_index: number, timeText: string, snippet: FetchedTranscriptSnippet): string;
}
export declare class UnknownFormatterType extends Error {
    constructor(formatterType: string);
}
export declare class FormatterLoader {
    static readonly TYPES: {
        json: typeof JSONFormatter;
        pretty: typeof PrettyPrintFormatter;
        srt: typeof SRTFormatter;
        text: typeof TextFormatter;
        webvtt: typeof WebVTTFormatter;
    };
    load(formatterType?: keyof typeof FormatterLoader.TYPES): Formatter;
}
export {};