feat(grid): implement hierarchical nomenclature filter (Secteur > Rayon > Famille)

src/features/grid/actions.ts

@@ -2,8 +2,9 @@
 
 import { db } from "@/db";
 import { ventesProduits } from "@/db/schema";
+import { sql } from "drizzle-orm";
 import { getProductRows } from "./api/get-product-rows";
-import type { ProductRow } from "@/types/grid";
+import type { ProductRow, GridFilters } from "@/types/grid";
 
 /**
  * Get the list of all unique suppliers from the database.
@@ -51,9 +52,63 @@ export async function getMagasins() {
     }
 }
 
+/**
+ * Get the list of all unique nomenclature levels available in the database.
+ */
+export async function getAvailableNomenclature() {
+    try {
+        const results = await db
+            .select({
+                code3: ventesProduits.code3,
+                libelle3: ventesProduits.libelle3,
+            })
+            .from(ventesProduits)
+            .where(sql`${ventesProduits.code3} IS NOT NULL`)
+            .groupBy(ventesProduits.code3, ventesProduits.libelle3);
+
+        const hierarchy: Record<string, { label: string, children: Record<string, { label: string, children: { code: string, label: string }[] }> }> = {};
+
+        // Mapping basique des libellés Niv 1 et 2
+        const L1_LABELS: Record<string, string> = {
+            "30": "ÉPICERIE",
+            "31": "CRÉMERIE / FRAIS",
+            "32": "LIQUIDES",
+            "33": "DPH",
+            "34": "BAZAR",
+            "35": "TEXTILE",
+        };
+
+        results.forEach(r => {
+            const c3 = r.code3 || "";
+            const l3 = r.libelle3 || "";
+            if (c3.length < 2) return;
+
+            const c1 = c3.slice(0, 2);
+            const c2 = c3.slice(0, 4);
+
+            if (!hierarchy[c1]) {
+                hierarchy[c1] = { label: L1_LABELS[c1] || `Niveau 1 (${c1})`, children: {} };
+            }
+            if (!hierarchy[c1].children[c2]) {
+                hierarchy[c1].children[c2] = { label: `Niveau 2 (${c2})`, children: [] };
+            }
+            hierarchy[c1].children[c2].children.push({ code: c3, label: l3 });
+        });
+
+        return hierarchy;
+    } catch (error) {
+        console.error("Error fetching nomenclature:", error);
+        return {};
+    }
+}
+
 /**
  * Get real product data for a specific supplier and store.
  */
-export async function getGridData(codeFournisseur: string, magasin: string = "TOTAL"): Promise<ProductRow[]> {
-    return getProductRows({ codeFournisseur, magasin });
+export async function getGridData(
+    codeFournisseur: string,
+    magasin: string = "TOTAL",
+    filters?: Partial<GridFilters>
+): Promise<ProductRow[]> {
+    return getProductRows({ codeFournisseur, magasin, filters });
 }