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feat(i18n): Implement i18n with Language Selector #16

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feat(i18n): Implement i18n with Language Selector #16

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93c901a
feat(i18n): Setup i18n with ts augmentation, language detector
david-bretaud-dev Feb 2, 2026
76827bf
feat(i18n): Create LanguageSelector to validate feature
david-bretaud-dev Feb 2, 2026
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5 changes: 4 additions & 1 deletion webapp/.gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -23,4 +23,7 @@ dist-ssr
*.sln
*.sw?

METABASE_LOGIN.json
METABASE_LOGIN.json

# Translations
public/locales
2 changes: 2 additions & 0 deletions webapp/.prettierrc
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Expand Up @@ -37,6 +37,8 @@
"^@pages/(.*)$",
"^@ui",
"^@ui/(.*)$",
"^@shared",
"^@shared/(.*)$",
"[../]",
"[./]"
],
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1 change: 1 addition & 0 deletions webapp/README.md
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Expand Up @@ -25,3 +25,4 @@ npm run dev
- `npm run preview` : Démarre le serveur à partir du build pour la production (dans le dist)
- `npm run check:arch` : Vérifier si les imports du projet respectent le principe de l'architecture FSD.
- `npm run arch:tree` : Génère un fichier text contenant l'arborescence du projet.
- `npm run translations:update`: Upload les fichiers de traductions vers public/locales, depuis lequel sont servis les fichiers de traduction
160 changes: 159 additions & 1 deletion webapp/package-lock.json
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7 changes: 6 additions & 1 deletion webapp/package.json
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Expand Up @@ -14,7 +14,8 @@
"format": "prettier . --write",
"format:check": "prettier . --check",
"lint": "eslint ./src",
"lint:fix": "eslint ./src --fix"
"lint:fix": "eslint ./src --fix",
"translations:update": "./scripts/update-translations.sh"
},
"dependencies": {
"@radix-ui/react-dialog": "^1.1.15",
Expand All @@ -30,10 +31,14 @@
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"coordo": "github:dataforgoodfr/Coordonnees#master",
"i18next": "^25.8.0",
"i18next-browser-languagedetector": "^8.2.0",
"i18next-http-backend": "^3.0.2",
"lucide-react": "^0.562.0",
"react": "^19.2.0",
"react-chartjs-2": "^5.3.1",
"react-dom": "^19.2.0",
"react-i18next": "^16.5.4",
"react-resizable-panels": "^3.0.6",
"recharts": "^2.15.4"
},
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5 changes: 5 additions & 0 deletions webapp/scripts/update-translations.sh
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@@ -0,0 +1,5 @@
#!/bin/sh

# Copy src/shared/i18n/translations/{files} -> public/locales/{files}

cp -R ./src/shared/i18n/translations/ public/locales/
7 changes: 7 additions & 0 deletions webapp/src/components/Header.tsx
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Expand Up @@ -5,6 +5,9 @@ import logo from "@assets/logo_all4trees.png";

import { Button } from "@ui/button";

import { useTranslation } from "@shared/i18n";

import { LanguageSelecor } from "./LanguageSelector";
import { ModeToggle } from "./ModeToggle";

interface HeaderProps {
Expand All @@ -14,6 +17,8 @@ interface HeaderProps {
}

export function Header({ onLogout, onLogin, isLogin }: HeaderProps) {
const { t } = useTranslation("translations");

return (
<header className="bg-background border-b border-border px-6 py-4 relative z-40">
<div className="mx-auto max-w-screen-2xl px-6 py-4">
Expand Down Expand Up @@ -41,6 +46,8 @@ export function Header({ onLogout, onLogin, isLogin }: HeaderProps) {
</Button>
)}
<ModeToggle />
<p>{t("helloWorld")}</p>
<LanguageSelecor />
</div>
</div>
</div>
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55 changes: 55 additions & 0 deletions webapp/src/components/LanguageSelector.tsx
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@@ -0,0 +1,55 @@
import { LanguagesIcon } from "lucide-react";
import type { FC } from "react";

import { Button } from "@ui/button";
import {
DropdownMenu,
DropdownMenuContent,
DropdownMenuItem,
DropdownMenuTrigger,
} from "@ui/dropdown-menu";

import { LANGUAGES, i18nInstance } from "@shared/i18n";

const LANGUAGES_CONFIGS = [
{
identifier: LANGUAGES.FRENCH,
fullString: "Français",
flag: "🇫🇷",
},
{
identifier: LANGUAGES.ENGLISH,
fullString: "English",
flag: "🇬🇧",
},
] as const;

export const LanguageSelecor: FC = () => {
return (
<DropdownMenu>
<DropdownMenuTrigger asChild>
<Button
variant="outline"
size="icon"
className="focus-visible:ring-0 focus-visible:ring-offset-0 shadow-none"
>
<LanguagesIcon className="h-[1.2rem] w-[1.2rem]" />
<span className="sr-only">{i18nInstance.language.toUpperCase()}</span>
</Button>
</DropdownMenuTrigger>

<DropdownMenuContent
className="bg-background"
align="end"
>
{LANGUAGES_CONFIGS.map((config) => (
<DropdownMenuItem
onClick={() => i18nInstance.changeLanguage(config.identifier)}
>
{`${config.flag} - ${config.fullString}`}
</DropdownMenuItem>
))}
</DropdownMenuContent>
</DropdownMenu>
);
};
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