Zazama / node-id3

import { FrameBuilder } from "../FrameBuilder"

import { FrameReader } from "../FrameReader"

import type { Data } from "./type"

export const PRIV = {

    create: (data: Data) => {

        if(!(data instanceof Array)) {

            data = [data]

        }

        return Buffer.concat(data.map((priv: Data) => new FrameBuilder("PRIV")

            .appendNullTerminatedValue(priv.ownerIdentifier)

            .appendValue(priv.data instanceof Buffer ? priv.data : Buffer.from(priv.data, "utf8"))

            .getBuffer()))

    },

    read: (buffer: Buffer) => {

        const reader = new FrameReader(buffer)

        return {

            ownerIdentifier: reader.consumeNullTerminatedValue('string'),

            data: reader.consumeStaticValue()

        }

    }

}