Working

frontend/src/hooks/useDeckLayers.ts

@@ -143,6 +143,13 @@ export function useDeckLayers({
   const colorFeatureMetaRef = useRef(colorFeatureMeta);
   colorFeatureMetaRef.current = colorFeatureMeta;
 
+  // Track enum value count for discrete coloring (0 = numeric/continuous)
+  const enumCountRef = useRef(0);
+  enumCountRef.current =
+    colorFeatureMeta?.type === 'enum' && colorFeatureMeta.values
+      ? colorFeatureMeta.values.length
+      : 0;
+
   // --- Count ranges ---
   const countRange = useMemo(() => {
     if (data.length === 0) return { min: 0, max: 1 };
@@ -360,7 +367,8 @@ export function useDeckLayers({
                 0,
                 densityGradientRef.current,
                 dark,
-                255
+                255,
+                enumCountRef.current
               );
             }
           }
@@ -433,7 +441,8 @@ export function useDeckLayers({
               0,
               densityGradientRef.current,
               dark,
-              180
+              180,
+              enumCountRef.current
             );
           }
           const cr = postcodeCountRangeRef.current;

frontend/src/hooks/useLocationSearch.ts

@@ -8,6 +8,15 @@ function looksLikePostcode(s: string) {
   return POSTCODE_RE.test(s.trim());
 }
 
+/** Normalize a UK postcode: uppercase, strip spaces, insert canonical space before inward code. */
+function normalizePostcode(s: string): string {
+  const stripped = s.replace(/\s+/g, '').toUpperCase();
+  if (stripped.length >= 5) {
+    return stripped.slice(0, -3) + ' ' + stripped.slice(-3);
+  }
+  return stripped;
+}
+
 export type SearchResult =
   | { type: 'postcode'; label: string }
   | { type: 'place'; name: string; slug: string; place_type: string; lat: number; lon: number; city?: string };
@@ -35,7 +44,7 @@ export function useLocationSearch(mode?: string) {
     }
 
     if (!mode && looksLikePostcode(trimmed)) {
-      setResults([{ type: 'postcode', label: trimmed.toUpperCase() }]);
+      setResults([{ type: 'postcode', label: normalizePostcode(trimmed) }]);
       setOpen(true);
       return;
     }
@@ -97,7 +106,7 @@ export function useLocationSearch(mode?: string) {
         if (activeIndex >= 0 && activeIndex < results.length) {
           onSelect(results[activeIndex]);
         } else if (looksLikePostcode(query)) {
-          onSelect({ type: 'postcode', label: query.trim().toUpperCase() });
+          onSelect({ type: 'postcode', label: normalizePostcode(query) });
         }
       } else if (e.key === 'Escape') {
         setOpen(false);