fix: resolve EACCES permission issue and hydration error #418

Dockerfile

@@ -37,15 +37,18 @@ RUN adduser --system --uid 1001 nextjs
 
 COPY --from=builder /app/public ./public
 
-# Set the correct permission for prerender cache
-RUN mkdir .next
-RUN chown nextjs:nodejs .next
+# Set the correct permission for prerender cache and data storage
+RUN mkdir .next data
+RUN chown nextjs:nodejs .next data
 
 # Automatically leverage output traces to reduce image size
 # https://nextjs.org/docs/advanced-features/output-file-tracing
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 
+# Grant write access to /app for settings persistence
+RUN chown -R nextjs:nodejs /app
+
 USER nextjs
 
 EXPOSE 5643

src/db/index.ts

@@ -8,7 +8,7 @@ let connectionString = process.env.DATABASE_URL;
 
 // On tente de lire la config sauvegardée via l'UI
 try {
-    const CONFIG_PATH = path.join(process.cwd(), ".db-config.json");
+    const CONFIG_PATH = path.join(process.cwd(), "data", ".db-config.json");
     if (fs.existsSync(CONFIG_PATH)) {
         const config = JSON.parse(fs.readFileSync(CONFIG_PATH, "utf-8"));
         if (config.url) {

src/features/grid/components/heatmap-grid.tsx

@@ -31,7 +31,7 @@ function getLast12Months(): string[] {
     return months;
 }
 
-const MONTHS_12 = getLast12Months();
+// La constante est supprimée d'ici pour éviter le mismatch d'hydratation (new Date() au runtime module)
 
 function formatMonthLabel(key: string): string {
     const m = parseInt(key.slice(4, 6), 10);
@@ -47,10 +47,17 @@ export function HeatmapGrid({ onSelectionChange }: HeatmapGridProps) {
     const { rows, draftChanges, setDraftGamme, filters, displayDensity } = useGridStore();
     const [sorting, setSorting] = useState<SortingState>([]);
     const [rowSelection, setRowSelection] = useState<RowSelectionState>({});
+    const [isMounted, setIsMounted] = useState(false);
     const tableContainerRef = useRef<HTMLDivElement>(null);
 
+    // Calculer les mois dynamiquement pour éviter le mismatch entre serveur et client
+    const MONTHS_12 = useMemo(() => getLast12Months(), []);
+
+    useEffect(() => {
+        setIsMounted(true);
+    }, []);
+
     const rowHeight = displayDensity === "compact" ? 32 : displayDensity === "normal" ? 40 : 48;
-    const cellPadding = displayDensity === "compact" ? "py-1" : displayDensity === "normal" ? "py-1.5" : "py-2.5";
 
     const handleRowSelectionChange = useCallback(
         (updater: React.SetStateAction<RowSelectionState>) => {
@@ -241,6 +248,21 @@ export function HeatmapGrid({ onSelectionChange }: HeatmapGridProps) {
 
     const totalWidth = columns.reduce((s, c) => s + ((c as { size?: number }).size ?? 150), 0);
 
+    if (!isMounted) {
+        return (
+            <div
+                className="overflow-auto rounded-[12px] flex items-center justify-center"
+                style={{
+                    height: "calc(100vh - 240px)",
+                    background: "var(--bg-surface)",
+                    border: "1px solid var(--border)",
+                }}
+            >
+                <div className="text-muted text-sm italic opacity-50">Chargement de la grille...</div>
+            </div>
+        );
+    }
+
     return (
         <div
             ref={tableContainerRef}

src/features/settings/actions.ts

@@ -4,7 +4,8 @@ import { Pool } from "pg";
 import fs from "fs/promises";
 import path from "path";
 
-const CONFIG_FILE = path.join(process.cwd(), ".db-config.json");
+const DATA_DIR = path.join(process.cwd(), "data");
+const CONFIG_FILE = path.join(DATA_DIR, ".db-config.json");
 
 export interface DbConfig {
     url: string;
@@ -22,9 +23,10 @@ export async function testDatabaseConnection(url: string) {
         await client.query("SELECT 1");
         client.release();
         return { success: true };
-    } catch (error: any) {
-        console.error("Database connection test failed:", error.message);
-        return { success: false, error: error.message };
+    } catch (error: unknown) {
+        const errorMessage = error instanceof Error ? error.message : String(error);
+        console.error("Database connection test failed:", errorMessage);
+        return { success: false, error: errorMessage };
     } finally {
         await pool.end();
     }
@@ -33,12 +35,17 @@ export async function testDatabaseConnection(url: string) {
 export async function saveDatabaseSettings(url: string) {
     try {
         const config: DbConfig = { url };
+
+        // S'assurer que le dossier data existe
+        await fs.mkdir(DATA_DIR, { recursive: true });
+
         await fs.writeFile(CONFIG_FILE, JSON.stringify(config, null, 2));
         console.log("Database configuration saved to:", CONFIG_FILE);
         return { success: true };
-    } catch (error: any) {
-        console.error("Failed to save database configuration:", error.message);
-        return { success: false, error: error.message };
+    } catch (error: unknown) {
+        const errorMessage = error instanceof Error ? error.message : String(error);
+        console.error("Failed to save database configuration:", errorMessage);
+        return { success: false, error: errorMessage };
     }
 }