45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
// cross-browser connection to extension i18n API
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const log = require('loglevel')
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/**
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* Returns a localized message for the given key
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* @param {object} locale The locale
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* @param {string} key The message key
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* @param {string[]} substitutions A list of message substitution replacements
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* @return {null|string} The localized message
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*/
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const getMessage = (locale, key, substitutions) => {
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if (!locale) {
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return null
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}
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if (!locale[key]) {
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log.warn(`Translator - Unable to find value for key "${key}"`)
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return null
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}
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const entry = locale[key]
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let phrase = entry.message
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// perform substitutions
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if (substitutions && substitutions.length) {
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substitutions.forEach((substitution, index) => {
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const regex = new RegExp(`\\$${index + 1}`, 'g')
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phrase = phrase.replace(regex, substitution)
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})
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}
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return phrase
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}
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async function fetchLocale (localeName) {
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try {
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const response = await fetch(`./_locales/${localeName}/messages.json`)
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return await response.json()
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} catch (error) {
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log.error(`failed to fetch ${localeName} locale because of ${error}`)
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return {}
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}
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}
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module.exports = {
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getMessage,
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fetchLocale,
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}
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