Zazama / node-id3

import * as fs from 'fs'

import { Id3TagStreamProcessor } from './file-stream-processor'

import { processFileSync, processFileAsync, fsReadAsync } from './util-file'

export function getId3TagDataFromFileSync(filepath: string) {

    const reader = new Id3TagStreamProcessor(12)

    processFileSync(filepath, 'r', (fileDescriptor) => {

        do {

            const readBuffer = reader.getReadBuffer()

            const sizeRead = fs.readSync(fileDescriptor, readBuffer)

            const missingData = reader.processReadBuffer(sizeRead)

            fs.readSync(fileDescriptor, missingData)

        } while(reader.continue)

    })

    return reader.getTags()

}

export async function getId3TagDataFromFileAsync(filepath: string) {

    const reader = new Id3TagStreamProcessor(12)

    await processFileAsync(filepath, 'r', async (fileDescriptor) => {

        do {

            const readBuffer = reader.getReadBuffer()

            const sizeRead = await fsReadAsync(fileDescriptor, readBuffer)

            const missingData = reader.processReadBuffer(sizeRead)

            await fsReadAsync(fileDescriptor, missingData)

        } while(reader.continue)

    })

    return reader.getTags()

}