Federate official Belgium data sources

frontend/src/components/map/mapWorkspaceUtils.ts

@@ -13,6 +13,28 @@ import {
 const MOL_PROJECT_NAME = 'Mol Municipality Workbench'
 const KEMPEN_PROJECT_NAME = 'Kempen Regional Workbench'
 
+export function selectedAreaCoverageZones(areaName: string | null | undefined): string[] | null {
+  const normalized = String(areaName ?? '').toLowerCase()
+  if (!normalized) return null
+  if (normalized.includes('coast land-sea')) return ['flanders', 'belgian_north_sea']
+  if (normalized.includes('language boundary')) return ['flanders', 'wallonia']
+  if (normalized.includes('north sea')) {
+    return ['belgian_north_sea', 'territorial_sea', 'exclusive_economic_zone', 'continental_shelf']
+  }
+  if (normalized.includes('territorial sea')) return ['territorial_sea']
+  if (normalized.includes('exclusive economic zone')) return ['exclusive_economic_zone']
+  if (normalized.includes('continental shelf')) return ['continental_shelf']
+  if (normalized.includes('brussels')) return ['brussels']
+  if (normalized.includes('wallonia') || normalized.includes('ardennes')) return ['wallonia']
+  if (normalized.includes('flanders') || normalized.includes('mol') || normalized.includes('kempen')) return ['flanders']
+  if (normalized.includes('belgium land')) return ['belgium', 'flanders', 'wallonia', 'brussels']
+  return null
+}
+
+export function productCoversZones(productZones: string[], selectedZones: string[] | null): boolean {
+  return selectedZones === null || selectedZones.some((zone) => productZones.includes(zone))
+}
+
 export function operationalScopeProjectLabel(project: ProjectRead): string {
   if (project.name === MOL_PROJECT_NAME) {
     return 'Mol'