Zazama / node-id3

import { FrameBuilder } from "../FrameBuilder"

import { FrameReader } from "../FrameReader"

import type { Data } from "./type"

export const UFID = {

    create: (data: Data) => {

        if (!(data instanceof Array)) {

            data = [data]

        }

        return Buffer.concat(data.map((ufid: Data) => new FrameBuilder("UFID")

            .appendNullTerminatedValue(ufid.ownerIdentifier)

            .appendValue(

                ufid.identifier instanceof Buffer ?

                ufid.identifier : Buffer.from(ufid.identifier, "utf8")

            )

            .getBuffer()))

    },

    read: (buffer: Buffer) => {

        const reader = new FrameReader(buffer)

        return {

            ownerIdentifier: reader.consumeNullTerminatedValue('string'),

            identifier: reader.consumeStaticValue()

        }

    }

}