From 8e734aa347aa1889f04f2d66c08df8f753fba9f1 Mon Sep 17 00:00:00 2001
From: DrMint <thomas@barillot.net>
Date: Fri, 15 Apr 2022 17:40:57 +0200
Subject: [PATCH] Select the primary language according to routing

---
 next.config.js               |  2 +-
 src/components/AppLayout.tsx | 19 ++++++++++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/next.config.js b/next.config.js
index 72deeb1..a847b98 100644
--- a/next.config.js
+++ b/next.config.js
@@ -2,7 +2,7 @@
 
 /* CONFIG */
 
-const locales = ["en", "fr", "ja", "es", "pt-br"];
+const locales = ["en", "es", "fr", "pt-br", "ja"];
 
 /* END CONFIG */
 
diff --git a/src/components/AppLayout.tsx b/src/components/AppLayout.tsx
index a7f21aa..e1bfe66 100644
--- a/src/components/AppLayout.tsx
+++ b/src/components/AppLayout.tsx
@@ -85,6 +85,23 @@ export default function AppLayout(props: Props): JSX.Element {
   });
   const [currencySelect, setCurrencySelect] = useState<number>(-1);
 
+  let defaultPreferredLanguages: string[] = [];
+
+  if (router.locale && router.locales) {
+    if (router.locale === "en") {
+      defaultPreferredLanguages = [router.locale];
+      router.locales.map((locale) => {
+        if (locale !== router.locale) defaultPreferredLanguages.push(locale);
+      });
+    } else {
+      defaultPreferredLanguages = [router.locale, "en"];
+      router.locales.map((locale) => {
+        if (locale !== router.locale && locale !== "en")
+          defaultPreferredLanguages.push(locale);
+      });
+    }
+  }
+
   useEffect(() => {
     if (appLayout.currency)
       setCurrencySelect(currencyOptions.indexOf(appLayout.currency));
@@ -272,7 +289,7 @@ export default function AppLayout(props: Props): JSX.Element {
                             ])
                           )
                         : new Map(
-                            router.locales.map((locale) => [
+                            defaultPreferredLanguages.map((locale) => [
                               locale,
                               prettyLanguage(locale, languages),
                             ])