124 lines
3.8 KiB
JavaScript
124 lines
3.8 KiB
JavaScript
// prettyBytes taken from https://github.com/sindresorhus/pretty-bytes
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/* eslint-disable no-param-reassign */
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const BYTE_UNITS = ["B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
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const BIBYTE_UNITS = ["B", "kiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"];
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const BIT_UNITS = ["b", "kbit", "Mbit", "Gbit", "Tbit", "Pbit", "Ebit", "Zbit", "Ybit"];
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const BIBIT_UNITS = ["b", "kibit", "Mibit", "Gibit", "Tibit", "Pibit", "Eibit", "Zibit", "Yibit"];
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/*
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Formats the given number using `Number#toLocaleString`.
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- If locale is a string, the value is expected to be a locale-key (for example: `de`).
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- If locale is true, the system default locale is used for translation.
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- If no value for locale is specified, the number is returned unmodified.
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*/
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const toLocaleString = (number, locale, options) => {
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let result = number;
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if (typeof locale === "string" || Array.isArray(locale)) {
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result = number.toLocaleString(locale, options);
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} else if (locale === true || options !== undefined) {
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result = number.toLocaleString(undefined, options);
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}
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return result;
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};
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function prettyBytes(number, options) {
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if (!Number.isFinite(number)) {
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throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
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}
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options = {
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bits: false,
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binary: false,
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...options,
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};
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// eslint-disable-next-line no-nested-ternary
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const UNITS = options.bits ? (options.binary ? BIBIT_UNITS : BIT_UNITS) : options.binary ? BIBYTE_UNITS : BYTE_UNITS;
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if (options.signed && number === 0) {
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return ` 0 ${UNITS[0]}`;
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}
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const isNegative = number < 0;
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// eslint-disable-next-line no-nested-ternary
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const prefix = isNegative ? "-" : options.signed ? "+" : "";
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if (isNegative) {
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number = -number;
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}
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let localeOptions;
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if (options.minimumFractionDigits !== undefined) {
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localeOptions = { minimumFractionDigits: options.minimumFractionDigits };
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}
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if (options.maximumFractionDigits !== undefined) {
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localeOptions = { maximumFractionDigits: options.maximumFractionDigits, ...localeOptions };
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}
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if (number < 1) {
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const numberString = toLocaleString(number, options.locale, localeOptions);
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return `${prefix + numberString} ${UNITS[0]}`;
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}
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const exponent = Math.min(
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Math.floor(options.binary ? Math.log(number) / Math.log(1024) : Math.log10(number) / 3),
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UNITS.length - 1
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);
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number /= (options.binary ? 1024 : 1000) ** exponent;
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if (!localeOptions) {
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number = number.toPrecision(3);
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}
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const numberString = toLocaleString(Number(number), options.locale, localeOptions);
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const unit = UNITS[exponent];
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return `${prefix + numberString} ${unit}`;
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}
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module.exports = {
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i18n: {
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defaultLocale: "en",
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locales: ["en"],
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},
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serializeConfig: false,
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use: [
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{
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init: (i18next) => {
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i18next.services.formatter.add("bytes", (value, lng, options) =>
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prettyBytes(parseFloat(value), { locale: lng, ...options })
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);
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i18next.services.formatter.add("rate", (value, lng, options) => {
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if (value === 0) return "0 Bps";
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const bits = options.bits ? value : value / 8;
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const k = 1024;
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const dm = options.decimals ? options.decimals : 0;
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const sizes = ["Bps", "Kbps", "Mbps", "Gbps", "Tbps", "Pbps", "Ebps", "Zbps", "Ybps"];
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const i = Math.floor(Math.log(bits) / Math.log(k));
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const formatted = new Intl.NumberFormat(lng, { maximumFractionDigits: dm, minimumFractionDigits: dm }).format(
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parseFloat(bits / k ** i)
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);
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return `${formatted} ${sizes[i]}`;
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});
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i18next.services.formatter.add("percent", (value, lng, options) =>
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new Intl.NumberFormat(lng, { style: "percent", ...options }).format(parseFloat(value) / 100.0)
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);
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},
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type: "3rdParty",
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},
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],
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};
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