Merge pull request #1 from coinos/i18n

Add Internationalization to CoinOS

1 files changed, 48 insertions, 0 deletions

diff --git a/src/lib/i18n.js b/src/lib/i18n.js
new file mode 100644
index 00000000..3105c709
--- /dev/null
+++ b/src/lib/i18n.js
@@ -0,0 +1,48 @@
+import { register, init, getLocaleFromNavigator } from 'svelte-i18n';
+
+// The list of locales to look for
+// ADD ALL NEW LANGUAGE CODES TO THIS LIST
+const localeCodes = ['en', 'fr'];
+
+// the default locale to use if none was found
+const defaultLocale = 'en';
+
+// Adds a new locale based on its code
+function addLocale(localeCode) {
+	register(localeCode, () => import(`../locales/${localeCode}.json`));
+}
+
+// Picks the default locale based on navigator locale and the list of available locales
+function pickLocale(navigatorLocale, availableLocales) {
+	// locale can be null the first time you load this
+	// return the default locale in that case - reloading should fix this
+	if (!navigatorLocale) return defaultLocale;
+
+	// determine langugage part of locale
+	// (e.g. if navigatorLocale is 'en-US', languageCode is 'en')
+	let dashIndex = navigatorLocale ? navigatorLocale.indexOf('-') : -1;
+	let languageCode; // navigator locale without the regional part
+	if (dashIndex === -1) {
+		languageCode = navigatorLocale;
+	} else {
+		languageCode = navigatorLocale.slice(0, dashIndex);
+	}
+
+	// get locale
+	if (availableLocales.includes(navigatorLocale)) {
+		return navigatorLocale;
+	} else if (availableLocales.includes(languageCode)) {
+		return languageCode;
+	} else {
+		return navigatorLocale;
+	}
+}
+
+// add locales
+localeCodes.forEach(addLocale);
+
+let initialLocale = pickLocale(getLocaleFromNavigator(), localeCodes);
+init({
+	fallbackLocale: defaultLocale,
+	initialLocale: initialLocale
+});