feat(grid): make gamme filters dynamic based on available data and support Aucune state

src/features/grid/components/gamme-select.tsx

@@ -5,32 +5,35 @@ import { cn } from "@/lib/utils";
 
 interface GammeSelectProps {
     value: GammeCode | null;
-    isDraft: boolean;
+    isDraft?: boolean;
     onChange: (gamme: GammeCode) => void;
 }
 
-const GAMME_STYLES: Record<GammeCode, string> = {
+const GAMME_STYLES: Record<string, string> = {
     A: "border-[1px] border-emerald-500/30 bg-emerald-500/10 text-emerald-700 dark:border-emerald-500/30 dark:bg-emerald-500/20 dark:text-emerald-400",
     B: "border-[1px] border-blue-500/30 bg-blue-500/10 text-blue-700 dark:border-blue-500/30 dark:bg-blue-500/20 dark:text-blue-400",
     C: "border-[1px] border-amber-500/30 bg-amber-500/10 text-amber-700 dark:border-amber-500/30 dark:bg-amber-500/20 dark:text-amber-400",
     Z: "border-[1px] border-rose-500/30 bg-rose-500/10 text-rose-700 dark:border-rose-500/30 dark:bg-rose-500/20 dark:text-rose-400",
+    Aucune: "border-[1px] border-slate-500/30 bg-slate-500/10 text-slate-700 dark:border-slate-500/30 dark:bg-slate-500/20 dark:text-slate-400",
 };
 
 export function GammeSelect({ value, isDraft, onChange }: GammeSelectProps) {
+    const displayValue = (!value || value.trim() === "") ? "Aucune" : value;
+
     return (
         <select
-            value={value ?? ""}
+            value={displayValue}
             onChange={(e) => onChange(e.target.value as GammeCode)}
             className={cn(
                 "w-full text-xs font-bold rounded-lg py-1.5 px-2 outline-none cursor-pointer shadow-sm transition-all text-center",
                 "focus:ring-2 focus:ring-brand-500/20",
-                value
-                    ? GAMME_STYLES[value]
-                    : "border-[1px] border-slate-300 dark:border-slate-700 bg-white dark:bg-slate-800 text-slate-500",
+                GAMME_STYLES[displayValue] || "border-[1px] border-slate-300 dark:border-slate-700 bg-white dark:bg-slate-800 text-slate-500",
                 isDraft && "shadow-[0_0_8px_rgba(251,191,36,0.3)] border-amber-400/50"
             )}
         >
-            <option value="" disabled>—</option>
+            <option value="Aucune" disabled={displayValue !== "Aucune" && displayValue !== ""}>
+                {displayValue === "Aucune" || displayValue === "" ? "— (Aucune)" : "—"}
+            </option>
             <option value="A">A</option>
             <option value="B">B</option>
             <option value="C">C</option>

src/features/grid/components/grid-filter-bar.tsx

@@ -30,19 +30,41 @@ export function GridFilterBar({ fournisseurs, magasins, nomenclature }: GridFilt
     const router = useRouter();
     const searchParams = useSearchParams();
 
-    // Compute dynamic counts per Gamme
-    const gammeCounts = React.useMemo(() => {
-        const counts: Record<string, number> = { A: 0, B: 0, C: 0, Z: 0, Total: 0 };
+    // Compute dynamic counts and present Gammes
+    const { gammeCounts, activeGammes } = React.useMemo(() => {
+        const counts: Record<string, number> = { Total: 0 };
+        const gammesPresence = new Set<string>();
+
         rows.forEach(r => {
-            const effectiveGamme = draftChanges[r.codein] ?? r.codeGamme;
-            if (effectiveGamme && counts[effectiveGamme] !== undefined) {
-                counts[effectiveGamme]++;
+            let effectiveGamme = draftChanges[r.codein] ?? r.codeGamme;
+
+            // Handle null, empty, or undefined gammes as "Aucune"
+            if (!effectiveGamme || effectiveGamme.trim() === "") {
+                effectiveGamme = "Aucune";
             }
+
+            gammesPresence.add(effectiveGamme);
+            counts[effectiveGamme] = (counts[effectiveGamme] || 0) + 1;
+
             if (effectiveGamme !== "Z") {
                 counts.Total++; // Active references (non-Z)
             }
         });
-        return counts;
+
+        // Always ensure A, B, C, Z are available IF they have count > 0, plus any other discovered gammes
+        const sortedGammes = Array.from(gammesPresence).sort((a, b) => {
+            if (a === "Aucune") return 1; // Put "Aucune" at the end
+            if (b === "Aucune") return -1;
+            return a.localeCompare(b);
+        });
+
+        // Build the dynamic filter list
+        const filtersList: { label: string; value: string | null }[] = [
+            { label: "Tous", value: null },
+            ...sortedGammes.map(g => ({ label: g, value: g }))
+        ];
+
+        return { gammeCounts: counts, activeGammes: filtersList };
     }, [rows, draftChanges]);
 
     const handleSupplierSelect = (code: string) => {
@@ -104,8 +126,8 @@ export function GridFilterBar({ fournisseurs, magasins, nomenclature }: GridFilt
                 className="flex items-center gap-1 p-0.5 rounded-lg"
                 style={{ background: "var(--bg-elevated)", border: "1px solid var(--border)" }}
             >
-                {GAMME_FILTERS.map(({ label, value }) => {
-                    const count = value === null ? rows.length : gammeCounts[value];
+                {activeGammes.map(({ label, value }) => {
+                    const count = value === null ? rows.length : gammeCounts[value] || 0;
                     const isActive = filters.codeGamme === value;
 
                     // Semantic colors for the badge based on Gamme
@@ -116,6 +138,7 @@ export function GridFilterBar({ fournisseurs, magasins, nomenclature }: GridFilt
                             case "B": return { background: "rgba(59, 130, 246, 0.15)", color: "rgb(37, 99, 235)" }; // Blue
                             case "C": return { background: "rgba(245, 158, 11, 0.15)", color: "rgb(217, 119, 6)" }; // Amber
                             case "Z": return { background: "rgba(244, 63, 94, 0.15)", color: "rgb(225, 29, 72)" };  // Rose
+                            case "Aucune": return { background: "rgba(100, 116, 139, 0.15)", color: "rgb(71, 85, 105)" }; // Slate
                             default: return { background: "rgba(0,0,0,0.1)", color: "var(--text-primary)" };
                         }
                     };

src/types/grid.ts

@@ -26,8 +26,8 @@ export interface VenteProduit {
     margeMvt: number | null;
 }
 
-/** A/B/C/Z status codes for product categories */
-export type GammeCode = "A" | "B" | "C" | "Z";
+/** A/B/C/Z status codes for product categories, but can be any string from DB (like 'Aucune') */
+export type GammeCode = string;
 
 /** A product row with its 12-month sales history and computed KPIs */
 export interface ProductRow {