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homepage/next-i18next.config.js

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// prettyBytes taken from https://github.com/sindresorhus/pretty-bytes
/* eslint-disable no-param-reassign */
const BYTE_UNITS = ["B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
const BIBYTE_UNITS = ["B", "kiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"];
const BIT_UNITS = ["b", "kbit", "Mbit", "Gbit", "Tbit", "Pbit", "Ebit", "Zbit", "Ybit"];
const BIBIT_UNITS = ["b", "kibit", "Mibit", "Gibit", "Tibit", "Pibit", "Eibit", "Zibit", "Yibit"];
/*
Formats the given number using `Number#toLocaleString`.
- If locale is a string, the value is expected to be a locale-key (for example: `de`).
- If locale is true, the system default locale is used for translation.
- If no value for locale is specified, the number is returned unmodified.
*/
const toLocaleString = (number, locale, options) => {
let result = number;
if (typeof locale === "string" || Array.isArray(locale)) {
result = number.toLocaleString(locale, options);
} else if (locale === true || options !== undefined) {
result = number.toLocaleString(undefined, options);
}
return result;
};
function prettyBytes(number, options) {
if (!Number.isFinite(number)) {
throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
}
options = {
bits: false,
binary: false,
...options,
};
// eslint-disable-next-line no-nested-ternary
const UNITS = options.bits ? (options.binary ? BIBIT_UNITS : BIT_UNITS) : options.binary ? BIBYTE_UNITS : BYTE_UNITS;
if (options.signed && number === 0) {
return ` 0 ${UNITS[0]}`;
}
const isNegative = number < 0;
// eslint-disable-next-line no-nested-ternary
const prefix = isNegative ? "-" : options.signed ? "+" : "";
if (isNegative) {
number = -number;
}
let localeOptions;
if (options.minimumFractionDigits !== undefined) {
localeOptions = { minimumFractionDigits: options.minimumFractionDigits };
}
if (options.maximumFractionDigits !== undefined) {
localeOptions = { maximumFractionDigits: options.maximumFractionDigits, ...localeOptions };
}
if (number < 1) {
const numberString = toLocaleString(number, options.locale, localeOptions);
return `${prefix + numberString} ${UNITS[0]}`;
}
const exponent = Math.min(
Math.floor(options.binary ? Math.log(number) / Math.log(1024) : Math.log10(number) / 3),
UNITS.length - 1,
);
number /= (options.binary ? 1024 : 1000) ** exponent;
if (!localeOptions) {
number = number.toPrecision(3);
}
const numberString = toLocaleString(Number(number), options.locale, localeOptions);
const unit = UNITS[exponent];
return `${prefix + numberString} ${unit}`;
}
module.exports = {
i18n: {
defaultLocale: "en",
locales: ["en"],
},
serializeConfig: false,
use: [
{
init: (i18next) => {
i18next.services.formatter.add("bytes", (value, lng, options) =>
prettyBytes(parseFloat(value), { locale: lng, ...options }),
);
i18next.services.formatter.add("rate", (value, lng, options) => {
const k = options.binary ? 1024 : 1000;
const sizes = options.bits
? options.binary
? BIBIT_UNITS
: BIT_UNITS
: options.binary
? BIBYTE_UNITS
: BYTE_UNITS;
if (value === 0) return `0 ${sizes[0]}/s`;
const dm = options.decimals ? options.decimals : 0;
const i = options.binary ? 2 : Math.floor(Math.log(value) / Math.log(k));
const formatted = new Intl.NumberFormat(lng, { maximumFractionDigits: dm, minimumFractionDigits: dm }).format(
parseFloat(value / k ** i),
);
return `${formatted} ${sizes[i]}/s`;
});
i18next.services.formatter.add("percent", (value, lng, options) =>
new Intl.NumberFormat(lng, { style: "percent", ...options }).format(parseFloat(value) / 100.0),
);
i18next.services.formatter.add("date", (value, lng, options) =>
new Intl.DateTimeFormat(lng, { ...options }).format(new Date(value)),
);
},
type: "3rdParty",
},
],
};