72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
// @if TARGET='app'
|
|
let fs = require('fs');
|
|
// @endif
|
|
|
|
const isProduction = process.env.NODE_ENV === 'production';
|
|
let knownMessages = null;
|
|
let localStorageAvailable;
|
|
try {
|
|
localStorageAvailable = Boolean(window.localStorage);
|
|
} catch (e) {
|
|
localStorageAvailable = false;
|
|
}
|
|
|
|
window.i18n_messages = window.i18n_messages || {};
|
|
|
|
// @if TARGET='app'
|
|
function saveMessage(message) {
|
|
const messagesFilePath = __static + '/app-strings.json';
|
|
|
|
if (knownMessages === null) {
|
|
try {
|
|
knownMessages = JSON.parse(fs.readFileSync(messagesFilePath, 'utf-8'));
|
|
} catch (err) {
|
|
throw 'Error parsing i18n messages file: ' + messagesFilePath + ' err: ' + err;
|
|
}
|
|
}
|
|
|
|
if (!knownMessages[message]) {
|
|
knownMessages[message] = message;
|
|
fs.writeFile(messagesFilePath, JSON.stringify(knownMessages, null, 2), 'utf-8', err => {
|
|
if (err) {
|
|
throw err;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
// @endif
|
|
|
|
/*
|
|
I dislike the below code (and note that it ships all the way to the distributed app),
|
|
but this seems better than silently having this limitation and future devs not knowing.
|
|
*/
|
|
// @if TARGET='web'
|
|
function saveMessage(message) {
|
|
if (!isProduction && knownMessages === null) {
|
|
console.log('Note that i18n messages are not saved in web dev mode.');
|
|
knownMessages = {};
|
|
}
|
|
}
|
|
// @endif
|
|
|
|
export function __(message, tokens) {
|
|
const language = localStorageAvailable
|
|
? window.localStorage.getItem('language') || 'en'
|
|
: window.navigator.language.slice(0, 2) || 'en';
|
|
|
|
if (!isProduction) {
|
|
saveMessage(message);
|
|
}
|
|
|
|
const translatedMessage = window.i18n_messages[language]
|
|
? window.i18n_messages[language][message] || message
|
|
: message;
|
|
|
|
if (!tokens) {
|
|
return translatedMessage;
|
|
}
|
|
|
|
return translatedMessage.replace(/%([^%]+)%/g, function($1, $2) {
|
|
return tokens.hasOwnProperty($2) ? tokens[$2] : $2;
|
|
});
|
|
}
|