feat: add i18n support (FR/EN) to backoffice with English as default

Implement full internationalization for the Next.js backoffice:
- i18n infrastructure: type-safe dictionaries (fr.ts/en.ts), cookie-based locale detection, React Context for client components, server-side translation helper
- Language selector in Settings page (General tab) with cookie + DB persistence
- All ~35 pages and components translated via t() / useTranslation()
- Default locale set to English, French available via settings

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-18 19:39:01 +01:00
parent 055c376222
commit d4f87c4044
43 changed files with 2024 additions and 693 deletions

View File

@@ -4,6 +4,7 @@ import { useState, useTransition, useEffect, useCallback } from "react";
import { createPortal } from "react-dom";
import { useRouter } from "next/navigation";
import { FormField, FormLabel, FormInput } from "./ui/Form";
import { useTranslation } from "../../lib/i18n/context";
function LockButton({
locked,
@@ -14,6 +15,7 @@ function LockButton({
onToggle: () => void;
disabled?: boolean;
}) {
const { t } = useTranslation();
return (
<button
type="button"
@@ -24,7 +26,7 @@ function LockButton({
? "text-amber-500 hover:text-amber-600"
: "text-muted-foreground/40 hover:text-muted-foreground"
}`}
title={locked ? "Champ verrouillé (protégé des synchros)" : "Cliquer pour verrouiller ce champ"}
title={locked ? t("editBook.lockedField") : t("editBook.clickToLock")}
>
{locked ? (
<svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -39,14 +41,7 @@ function LockButton({
);
}
const SERIES_STATUSES = [
{ value: "", label: "Non défini" },
{ value: "ongoing", label: "En cours" },
{ value: "ended", label: "Terminée" },
{ value: "hiatus", label: "Hiatus" },
{ value: "cancelled", label: "Annulée" },
{ value: "upcoming", label: "À paraître" },
] as const;
const SERIES_STATUS_VALUES = ["", "ongoing", "ended", "hiatus", "cancelled", "upcoming"] as const;
interface EditSeriesFormProps {
libraryId: string;
@@ -75,6 +70,7 @@ export function EditSeriesForm({
currentStatus,
currentLockedFields,
}: EditSeriesFormProps) {
const { t } = useTranslation();
const router = useRouter();
const [isPending, startTransition] = useTransition();
const [isOpen, setIsOpen] = useState(false);
@@ -213,7 +209,7 @@ export function EditSeriesForm({
);
if (!res.ok) {
const data = await res.json();
setError(data.error ?? "Erreur lors de la sauvegarde");
setError(data.error ?? t("editBook.saveError"));
return;
}
setIsOpen(false);
@@ -224,7 +220,7 @@ export function EditSeriesForm({
router.refresh();
}
} catch {
setError("Erreur réseau");
setError(t("common.networkError"));
}
});
};
@@ -242,7 +238,7 @@ export function EditSeriesForm({
<div className="bg-card border border-border/50 rounded-xl shadow-2xl w-full max-w-2xl max-h-[90vh] overflow-y-auto animate-in fade-in zoom-in-95 duration-200">
{/* Header */}
<div className="flex items-center justify-between px-5 py-4 border-b border-border/50 bg-muted/30 sticky top-0 z-10">
<h3 className="font-semibold text-foreground">Modifier la série</h3>
<h3 className="font-semibold text-foreground">{t("editSeries.title")}</h3>
<button
type="button"
onClick={handleClose}
@@ -259,18 +255,18 @@ export function EditSeriesForm({
<form onSubmit={handleSubmit} className="p-5 space-y-5">
<div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
<FormField>
<FormLabel required>Nom</FormLabel>
<FormLabel required>{t("editSeries.name")}</FormLabel>
<FormInput
value={newName}
onChange={(e) => setNewName(e.target.value)}
disabled={isPending}
placeholder="Nom de la série"
placeholder={t("editSeries.namePlaceholder")}
/>
</FormField>
<FormField>
<div className="flex items-center gap-1">
<FormLabel>Année de début</FormLabel>
<FormLabel>{t("editSeries.startYear")}</FormLabel>
<LockButton locked={!!lockedFields.start_year} onToggle={() => toggleLock("start_year")} disabled={isPending} />
</div>
<FormInput
@@ -280,13 +276,13 @@ export function EditSeriesForm({
value={startYear}
onChange={(e) => setStartYear(e.target.value)}
disabled={isPending}
placeholder="ex : 1990"
placeholder={t("editSeries.startYearPlaceholder")}
/>
</FormField>
<FormField>
<div className="flex items-center gap-1">
<FormLabel>Nombre de volumes</FormLabel>
<FormLabel>{t("editSeries.totalVolumes")}</FormLabel>
<LockButton locked={!!lockedFields.total_volumes} onToggle={() => toggleLock("total_volumes")} disabled={isPending} />
</div>
<FormInput
@@ -295,13 +291,13 @@ export function EditSeriesForm({
value={totalVolumes}
onChange={(e) => setTotalVolumes(e.target.value)}
disabled={isPending}
placeholder="ex : 12"
placeholder="12"
/>
</FormField>
<FormField>
<div className="flex items-center gap-1">
<FormLabel>Statut</FormLabel>
<FormLabel>{t("editSeries.status")}</FormLabel>
<LockButton locked={!!lockedFields.status} onToggle={() => toggleLock("status")} disabled={isPending} />
</div>
<select
@@ -310,8 +306,10 @@ export function EditSeriesForm({
disabled={isPending}
className="w-full rounded-lg border border-border bg-background px-3 py-2 text-sm text-foreground focus:outline-none focus:ring-2 focus:ring-primary/40"
>
{SERIES_STATUSES.map((s) => (
<option key={s.value} value={s.value}>{s.label}</option>
{SERIES_STATUS_VALUES.map((v) => (
<option key={v} value={v}>
{v === "" ? t("seriesStatus.notDefined") : t(`seriesStatus.${v}` as any)}
</option>
))}
</select>
</FormField>
@@ -319,7 +317,7 @@ export function EditSeriesForm({
{/* Auteurs — multi-valeur */}
<FormField className="sm:col-span-2">
<div className="flex items-center gap-1">
<FormLabel>Auteur(s)</FormLabel>
<FormLabel>{t("editSeries.authors")}</FormLabel>
<LockButton locked={!!lockedFields.authors} onToggle={() => toggleLock("authors")} disabled={isPending} />
</div>
<div className="space-y-2">
@@ -336,7 +334,7 @@ export function EditSeriesForm({
onClick={() => removeAuthor(i)}
disabled={isPending}
className="hover:text-destructive transition-colors ml-0.5"
aria-label={`Supprimer ${a}`}
aria-label={t("editBook.removeAuthor", { name: a })}
>
×
</button>
@@ -351,7 +349,7 @@ export function EditSeriesForm({
onChange={(e) => setAuthorInput(e.target.value)}
onKeyDown={handleAuthorKeyDown}
disabled={isPending}
placeholder="Ajouter un auteur (Entrée pour valider)"
placeholder={t("editBook.addAuthor")}
className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
/>
<button
@@ -371,9 +369,9 @@ export function EditSeriesForm({
? "border-primary bg-primary/10 text-primary"
: "border-border bg-card text-muted-foreground hover:text-foreground"
}`}
title="Appliquer auteur et langue à tous les livres de la série"
title={t("editSeries.applyToBooksTitle")}
>
livres
{t("editSeries.applyToBooks")}
</button>
</div>
</div>
@@ -382,21 +380,21 @@ export function EditSeriesForm({
{showApplyToBooks && (
<div className="sm:col-span-2 grid grid-cols-1 sm:grid-cols-2 gap-3 pl-4 border-l-2 border-primary/30">
<FormField>
<FormLabel>Auteur (livres)</FormLabel>
<FormLabel>{t("editSeries.bookAuthor")}</FormLabel>
<FormInput
value={bookAuthor}
onChange={(e) => setBookAuthor(e.target.value)}
disabled={isPending}
placeholder="Écrase le champ auteur de chaque livre"
placeholder={t("editSeries.bookAuthorPlaceholder")}
/>
</FormField>
<FormField>
<FormLabel>Langue (livres)</FormLabel>
<FormLabel>{t("editSeries.bookLanguage")}</FormLabel>
<FormInput
value={bookLanguage}
onChange={(e) => setBookLanguage(e.target.value)}
disabled={isPending}
placeholder="ex : fr, en, jp"
placeholder={t("editBook.languagePlaceholder")}
/>
</FormField>
</div>
@@ -405,7 +403,7 @@ export function EditSeriesForm({
{/* Éditeurs — multi-valeur */}
<FormField className="sm:col-span-2">
<div className="flex items-center gap-1">
<FormLabel>Éditeur(s)</FormLabel>
<FormLabel>{t("editSeries.publishers")}</FormLabel>
<LockButton locked={!!lockedFields.publishers} onToggle={() => toggleLock("publishers")} disabled={isPending} />
</div>
<div className="space-y-2">
@@ -422,7 +420,7 @@ export function EditSeriesForm({
onClick={() => removePublisher(i)}
disabled={isPending}
className="hover:text-destructive transition-colors ml-0.5"
aria-label={`Supprimer ${p}`}
aria-label={t("editBook.removeAuthor", { name: p })}
>
×
</button>
@@ -437,7 +435,7 @@ export function EditSeriesForm({
onChange={(e) => setPublisherInput(e.target.value)}
onKeyDown={handlePublisherKeyDown}
disabled={isPending}
placeholder="Ajouter un éditeur (Entrée pour valider)"
placeholder={t("editSeries.addPublisher")}
className="flex h-10 flex-1 rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50"
/>
<button
@@ -454,7 +452,7 @@ export function EditSeriesForm({
<FormField className="sm:col-span-2">
<div className="flex items-center gap-1">
<FormLabel>Description</FormLabel>
<FormLabel>{t("editBook.description")}</FormLabel>
<LockButton locked={!!lockedFields.description} onToggle={() => toggleLock("description")} disabled={isPending} />
</div>
<textarea
@@ -462,7 +460,7 @@ export function EditSeriesForm({
onChange={(e) => setDescription(e.target.value)}
disabled={isPending}
rows={3}
placeholder="Synopsis ou description de la série…"
placeholder={t("editSeries.descriptionPlaceholder")}
className="flex w-full rounded-md border border-input bg-background px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground/90 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 resize-none"
/>
</FormField>
@@ -474,7 +472,7 @@ export function EditSeriesForm({
<svg className="w-3.5 h-3.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
<path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z" />
</svg>
Les champs verrouillés ne seront pas écrasés par les synchros de métadonnées externes.
{t("editBook.lockedFieldsNote")}
</p>
)}
@@ -488,14 +486,14 @@ export function EditSeriesForm({
disabled={isPending}
className="px-4 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground transition-colors"
>
Annuler
{t("common.cancel")}
</button>
<button
type="submit"
disabled={isPending || (!newName.trim() && seriesName !== "unclassified")}
className="px-4 py-1.5 rounded-lg bg-primary text-white text-sm font-medium hover:bg-primary/90 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
>
{isPending ? "Sauvegarde…" : "Sauvegarder"}
{isPending ? t("common.saving") : t("common.save")}
</button>
</div>
</form>
@@ -511,7 +509,7 @@ export function EditSeriesForm({
onClick={() => setIsOpen(true)}
className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-lg border border-border bg-card text-sm font-medium text-muted-foreground hover:text-foreground hover:border-primary transition-colors"
>
<span></span> Modifier la série
<span></span> {t("editSeries.title")}
</button>
{modal}
</>