/**
 * Represents a single channel in an M3U playlist, detailing its properties.
 */
export declare type M3uChannel = {
    /** Identifier for the channel in a TV guide */
    tvgId?: string;
    /** Name for the channel in a TV guide */
    tvgName?: string;
    /** Language of the channel */
    tvgLanguage?: string;
    /** URL of the channel's logo */
    tvgLogo?: string;
    /** URL for the channel's TV guide data */
    tvgUrl?: string;
    /** Recording information for the channel */
    tvgRec?: string;
    /** Channel number in the TV guide */
    tvgChno?: string;
    /** Group title for categorizing the channel */
    groupTitle?: string;
    /** URL for the channel's streaming content */
    url?: string;
    urls?: string[];
    /** Name of the channel */
    name?: string;
    /** Timeshift value for the channel */
    timeshift?: string;
    /** Catchup service information for the channel */
    catchup?: string;
    /** Duration of the channel's content */
    duration?: number;
    /** Number of days available for catchup service */
    catchupDays?: string;
    /** Source URL for the catchup service */
    catchupSource?: string;
    /** Additional custom properties */
    extras?: Record<string, string | undefined>;
};

/**
 * Represents the headers found in an M3U playlist file.
 * These headers often include metadata related to the entire playlist, like URLs for TV guide data.
 */
export declare type M3uHeaders = {
    [key: string]: string | undefined;
    /** URL for the TV guide in XMLTV format */
    xTvgUrl?: string;
    /** Alternative URL for the TV guide */
    urlTvg?: string;
};

/**
 * Defines the structure of an M3U playlist, typically used for streaming media channels.
 * An M3U playlist contains a list of channels and optional headers providing additional metadata.
 */
export declare type M3uPlaylist = {
    /** Array of `M3uChannel` objects representing each channel in the playlist. */
    channels: M3uChannel[];
    /** `M3uHeaders` object containing metadata for the playlist. */
    headers?: M3uHeaders;
};

/**
 * parseM3U
 *
 * Parses an M3U file and returns an `M3uPlaylist` object
 *
 * @param m3uFileContents The contents of the M3U file
 *
 * @example
 * ```ts
 * import { parseM3U } from "@iptv/playlist";
 *
 * const m3u = `#EXTM3U
 * #EXTINF:-1 tvg-id="1" tvg-name="Channel 1" tvg-language="English" tvg-logo="http://example.com/logo.png" group-title="News" tvg-url="http://example.com/tvg.xml" timeshift="1" catchup="default" catchup-days="7" catchup-source="default" x-tvg-url="http://example.com/tvg.xml" url-tvg="http://example.com/tvg.xml" tvg-rec="default",Channel 1
 * http://example.com/stream.m3u8
 * `;
 *
 * const playlist = parseM3U(m3u);
 * ```
 */
export declare function parseM3U(m3uFileContents: string): M3uPlaylist;

/**
 * writeM3U
 *
 * Converts an `M3uPlaylist` object to an M3U file
 *
 * @param playlist The `M3uPlaylist` object to convert
 *
 * @example
 * ```ts
 * import { writeM3U } from "@iptv/playlist";
 *
 * const playlist = {
 *   headers: {
 *     "x-tvg-url": "http://example.com/tvg.xml",
 *   },
 * channels: [{
 *     tvgId: "1",
 *     tvgName: "Channel 1",
 *     tvgLanguage: "English",
 *     tvgLogo: "http://example.com/logo.png",
 *     groupTitle: "News",
 *     name: "Channel 1",
 *     url: "http://server:port/channel1",
 *   }],
 * };
 *
 * const m3u = writeM3U(playlist);
 * ```
 */
export declare function writeM3U(playlist: M3uPlaylist): string;

export { }