musescore-downloader/src/utils.ts

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import isNodeJs from 'detect-node'
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export const escapeFilename = (s: string): string => {
return s.replace(/[\s<>:{}"/\\|?*~.\0\cA-\cZ]+/g, '_')
}
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export const getIndexPath = (id: number): string => {
const idStr = String(id)
// 获取最后三位,倒序排列
// x, y, z are the reversed last digits of the score id. Example: id 123456789, x = 9, y = 8, z = 7
// https://developers.musescore.com/#/file-urls
// "5449062" -> ["2", "6", "0"]
const indexN = idStr.split('').reverse().slice(0, 3)
return indexN.join('/')
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}
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export const getFetch = (): typeof fetch => {
if (!isNodeJs) {
return fetch
} else {
// eslint-disable-next-line @typescript-eslint/no-unsafe-return
return require('node-fetch')
}
}
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export const fetchData = async (url: string, init?: RequestInit): Promise<Uint8Array> => {
const r = await fetch(url, init)
const data = await r.arrayBuffer()
return new Uint8Array(data)
}
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export const assertRes = (r: Response): void => {
if (!r.ok) throw new Error(`${r.url} ${r.status} ${r.statusText}`)
}
export const useTimeout = async <T> (promise: T | Promise<T>, ms: number): Promise<T> => {
if (!(promise instanceof Promise)) {
return promise
}
return new Promise((resolve, reject) => {
const i = setTimeout(() => {
reject(new Error('timeout'))
}, ms)
promise.then(resolve, reject).finally(() => clearTimeout(i))
})
}
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export const getSandboxWindow = (): Window => {
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if (typeof document === 'undefined') return {} as any as Window
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const iframe = document.createElement('iframe')
iframe.style.display = 'none'
document.body.append(iframe)
const w = iframe.contentWindow
return w as Window
}
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export const sandboxWindow = getSandboxWindow()
export const console: Console = sandboxWindow['console']
export const _Element: typeof Element = sandboxWindow['Element']
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export const windowOpen: Window['open'] = (...args): Window | null => {
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return sandboxWindow.open(...args)
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}
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export const waitForDocumentLoaded = (): Promise<void> => {
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if (document.readyState !== 'complete') {
return new Promise(resolve => {
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const cb = () => {
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if (document.readyState === 'complete') {
resolve()
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document.removeEventListener('readystatechange', cb)
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}
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}
document.addEventListener('readystatechange', cb)
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})
} else {
return Promise.resolve()
}
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}