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import * as WebTorrent from 'webtorrent'
import { readFile, readdir } from 'fs'
let webtorrent = new WebTorrent()
function immutableAssign <T, U> (target: T, source: U) {
return Object.assign<{}, T, U>({}, target, source)
}
function readFilePromise (path: string) {
return new Promise<Buffer>((res, rej) => {
readFile(path, (err, data) => {
if (err) return rej(err)
return res(data)
})
})
}
function readdirPromise (path: string) {
return new Promise<string[]>((res, rej) => {
readdir(path, (err, files) => {
if (err) return rej(err)
return res(files)
})
})
}
// Default interval -> 2 minutes
function dateIsValid (dateString: string, interval = 120000) {
const dateToCheck = new Date(dateString)
const now = new Date()
return Math.abs(now.getTime() - dateToCheck.getTime()) <= interval
}
function wait (milliseconds: number) {
return new Promise(resolve => setTimeout(resolve, milliseconds))
}
function webtorrentAdd (torrent: string, refreshWebTorrent = false) {
if (refreshWebTorrent === true) webtorrent = new WebTorrent()
return new Promise<WebTorrent.Torrent>(res => webtorrent.add(torrent, res))
}
// ---------------------------------------------------------------------------
export {
readFilePromise,
readdirPromise,
dateIsValid,
wait,
webtorrentAdd,
immutableAssign
}
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