feat: add i18n with type safety

inertia/i18n/index.ts

@@ -0,0 +1,64 @@
+import i18n from 'i18next';
+import { initReactI18next } from 'react-i18next';
+
+// TODO: Refacot this stuff
+// /!\ Code completion has to keep working
+
+import frResourceAbout from './locales/fr/about.json';
+import frResourceAdmin from './locales/fr/admin.json';
+import frResourceCommon from './locales/fr/common.json';
+import frResourceHome from './locales/fr/home.json';
+import frResourceLogin from './locales/fr/login.json';
+import frResourcePrivacy from './locales/fr/privacy.json';
+import frResourceTerms from './locales/fr/terms.json';
+
+import enResourceAbout from './locales/en/about.json';
+import enResourceAdmin from './locales/en/admin.json';
+import enResourceCommon from './locales/en/common.json';
+import enResourceHome from './locales/en/home.json';
+import enResourceLogin from './locales/en/login.json';
+import enResourcePrivacy from './locales/en/privacy.json';
+import enResourceTerms from './locales/en/terms.json';
+
+type I18nFR =
+  | RemoveSuffix<Leaves<typeof frResourceAbout>>
+  | RemoveSuffix<Leaves<typeof frResourceAdmin>>
+  | RemoveSuffix<Leaves<typeof frResourceCommon>>
+  | RemoveSuffix<Leaves<typeof frResourceHome>>
+  | RemoveSuffix<Leaves<typeof frResourceLogin>>
+  | RemoveSuffix<Leaves<typeof frResourcePrivacy>>
+  | RemoveSuffix<Leaves<typeof frResourceTerms>>;
+export type I18nKey = I18nFR;
+
+export const resources = {
+  en: {
+    about: enResourceAbout,
+    admin: enResourceAdmin,
+    common: enResourceCommon,
+    home: enResourceHome,
+    login: enResourceLogin,
+    privacy: enResourcePrivacy,
+    terms: enResourceTerms,
+  },
+  fr: {
+    about: frResourceAbout,
+    admin: frResourceAdmin,
+    common: frResourceCommon,
+    home: frResourceHome,
+    login: frResourceLogin,
+    privacy: frResourcePrivacy,
+    terms: frResourceTerms,
+  },
+} as const;
+
+i18n.use(initReactI18next).init({
+  returnNull: false,
+  resources,
+  fallbackLng: 'en',
+  interpolation: {
+    escapeValue: false,
+  },
+  defaultNS: 'common',
+});
+
+export default i18n;