fix(map): make area analysis scale-aware

frontend/src/components/map/MapWorkspace.tsx

@@ -41,8 +41,11 @@ import {
   safeFileStem,
   selectedAreaCoverageZones,
   selectedFeatureCollection,
+  selectionAnalysisScale,
   selectionAreaSquareMetres,
+  selectionDimensions,
   selectionMetricLabel,
+  splitSelectionBbox,
 } from './mapWorkspaceUtils'
 
 const DEFAULT_SELECTED_FEATURE_FILENAME = 'selected-feature.geojson'
@@ -91,6 +94,25 @@ interface OnDemandMapProduct extends MapThemeAcquisition {
   limitationMessage: string
 }
 
+interface PlannedOnDemandMapProduct extends OnDemandMapProduct {
+  acquisitionBboxes: VectorSelectionBBox[]
+}
+
+function productSupportsSelection(product: OnDemandMapProduct, bbox: VectorSelectionBBox): boolean {
+  const scale = selectionAnalysisScale(bbox)
+  if (scale === 'overview') return false
+  const dimensions = selectionDimensions(bbox)
+  if (product.kind === 'dhmv' || product.kind === 'flood_hazard') {
+    return dimensions.areaSquareMetres <= 280_000_000
+  }
+  if (product.kind === 'thematic_raster') {
+    return dimensions.widthMetres <= 50_000
+      && dimensions.heightMetres <= 50_000
+      && dimensions.areaSquareMetres <= 2_800_000_000
+  }
+  return true
+}
+
 const DATA_THEMES: DataTheme[] = [
   {
     id: 'administrative',
@@ -836,6 +858,7 @@ export function MapWorkspace({
     loading: officialMapProductsLoading,
     error: officialMapProductsError,
     resolveCoverage,
+    resolveCoveragePartitions,
   } = useOfficialMapProducts(selectedProjectId)
   const {
     temporalComparison,
@@ -1114,12 +1137,18 @@ export function MapWorkspace({
     }
     return result
   }, [onDemandProductsForZones, selectedCoverageZones])
+  const mapSelectionScale = mapSelectionBbox ? selectionAnalysisScale(mapSelectionBbox) : null
   const selectionRelevantThemes = useMemo(() => {
     if (!mapSelectionBbox || !coverage) {
       return DATA_THEMES
     }
     const boundedThemes = new Set(
-      onDemandProductsForZones(coverage.intersected_zones).map((product) => product.theme),
+      (mapSelectionBbox
+        ? onDemandProductsForZones(coverage.intersected_zones).filter(
+            (product) => productSupportsSelection(product, mapSelectionBbox),
+          )
+        : [])
+        .map((product) => product.theme),
     )
     return DATA_THEMES.filter((theme) => {
       if (boundedThemes.has(theme.id)) {
@@ -1133,9 +1162,9 @@ export function MapWorkspace({
         (item) => item.theme === coverageTheme && item.status === 'operational',
       )
     })
-  }, [coverage, mapSelectionBbox, onDemandProductsForZones, themeDatasetMap])
+  }, [coverage, mapSelectionBbox, mapSelectionScale, onDemandProductsForZones, themeDatasetMap])
   const unavailableSelectionThemeCount = Math.max(DATA_THEMES.length - selectionRelevantThemes.length, 0)
-  const activeOnDemandMapProduct = themeDatasetMap[activeTheme.id]
+  const activeOnDemandMapProduct = mapSelectionScale === 'overview' || themeDatasetMap[activeTheme.id]
     ? null
     : onDemandProductMap.get(activeTheme.id) ?? null
   const activeThemeMapStyle = DATA_THEME_MAP_STYLES[activeTheme.id]
@@ -1366,6 +1395,20 @@ export function MapWorkspace({
         : selectionAreaSquareMetres(mapSelectionBbox),
     [mapSelectionBbox, selectedAreaBbox, selectedMapArea?.area_m2],
   )
+  const selectionScaleNotice = useMemo(() => {
+    if (!mapSelectionBbox || !mapSelectionScale) return null
+    const dimensions = selectionDimensions(mapSelectionBbox)
+    const widthKm = dimensions.widthMetres / 1000
+    const heightKm = dimensions.heightMetres / 1000
+    if (mapSelectionScale === 'regional') {
+      const partitionCount = splitSelectionBbox(mapSelectionBbox).length
+      return `Regionale analyse van ${widthKm.toLocaleString('nl-BE', { maximumFractionDigits: 1 })} × ${heightKm.toLocaleString('nl-BE', { maximumFractionDigits: 1 })} km. Geschikte detailbronnen worden automatisch over ${partitionCount} begrensde bronpartities verwerkt; 5 m-rasters worden alleen meegenomen wanneer het veilige pixelbudget volstaat.`
+    }
+    if (mapSelectionScale === 'overview') {
+      return `Overzichtsanalyse van ${widthKm.toLocaleString('nl-BE', { maximumFractionDigits: 1 })} × ${heightKm.toLocaleString('nl-BE', { maximumFractionDigits: 1 })} km. Alleen landelijke en vooraf ingeladen bronnen die deze schaal betrouwbaar ondersteunen worden bevraagd. Teken maximaal 50 × 50 km voor regionale thema's of 20 × 20 km voor alle detailbronnen.`
+    }
+    return null
+  }, [mapSelectionBbox, mapSelectionScale])
   const selectedResultTotal = activeSelectionResult?.total_feature_count ?? activeSelectionResult?.feature_count ?? 0
   const selectedDensity = selectedAreaSquareMetres && selectedAreaSquareMetres > 0
     ? selectedResultTotal / (selectedAreaSquareMetres / 1_000_000)
@@ -1727,6 +1770,7 @@ export function MapWorkspace({
 
   const loadAllThemeResults = async (bbox: VectorSelectionBBox, areaId?: string) => {
     let resolvedZones = selectedCoverageZones
+    const scale = selectionAnalysisScale(bbox)
     if (analysisMode === 'current' && selectedProjectId) {
       const resolvedCoverage = await resolveCoverage({
         minx: bbox.min_x,
@@ -1740,9 +1784,49 @@ export function MapWorkspace({
       }
       resolvedZones = resolvedCoverage.intersected_zones
     }
-    const resolvedProducts = analysisMode === 'current'
-      ? onDemandProductsForZones(resolvedZones)
-      : []
+    let resolvedProducts: PlannedOnDemandMapProduct[] = []
+    if (analysisMode === 'current' && scale !== 'overview') {
+      const zoneProducts = resolvedZones
+        ? onDemandProductsForZones(resolvedZones)
+        : []
+      if (scale === 'detail' || !selectedProjectId) {
+        resolvedProducts = zoneProducts
+          .filter((product) => productSupportsSelection(product, bbox))
+          .map((product) => ({
+            ...product,
+            acquisitionBboxes: [bbox],
+          }))
+      } else {
+        const detailTiles = splitSelectionBbox(bbox)
+        const tileCoverage = await resolveCoveragePartitions(detailTiles)
+        if (!tileCoverage) {
+          clearThemeInsights()
+          return
+        }
+        const grouped = new Map<string, PlannedOnDemandMapProduct>()
+        for (const item of tileCoverage) {
+          for (const product of onDemandProductsForZones(item.coverage.intersected_zones)) {
+            if (product.kind === 'thematic_raster' || !productSupportsSelection(product, bbox)) continue
+            const key = `${product.kind}:${product.productKey}`
+            const existing = grouped.get(key)
+            if (existing) {
+              existing.acquisitionBboxes.push(item.bbox)
+            } else {
+              grouped.set(key, { ...product, acquisitionBboxes: [item.bbox] })
+            }
+          }
+        }
+        for (const product of zoneProducts.filter(
+          (candidate) => candidate.kind === 'thematic_raster' && productSupportsSelection(candidate, bbox),
+        )) {
+          grouped.set(`${product.kind}:${product.productKey}`, {
+            ...product,
+            acquisitionBboxes: [bbox],
+          })
+        }
+        resolvedProducts = [...grouped.values()]
+      }
+    }
     const availableThemes: Array<MapThemeQuery<DataThemeId>> = []
     for (const theme of DATA_THEMES) {
       const dataset = themeDatasetMap[theme.id]
@@ -1765,6 +1849,7 @@ export function MapWorkspace({
               productKey: onDemandProduct.productKey,
               displayName: onDemandProduct.displayName,
             },
+            acquisitionBboxes: onDemandProduct.acquisitionBboxes,
           })
         }
         continue
@@ -2560,9 +2645,14 @@ export function MapWorkspace({
                           )
                         })
                       })}
+                      {selectionScaleNotice ? (
+                        <p className="geo-data-notice">{selectionScaleNotice}</p>
+                      ) : null}
                       {unavailableSelectionThemeCount > 0 ? (
                         <p className="geo-data-notice">
-                          {unavailableSelectionThemeCount} thema’s zijn voor deze zone niet van toepassing of hebben nog geen gevalideerde operationele koppeling.
+                          {mapSelectionScale === 'overview'
+                            ? `${unavailableSelectionThemeCount} detailthema's zijn op deze overzichtsschaal bewust niet bevraagd.`
+                            : `${unavailableSelectionThemeCount} thema's zijn voor deze zone niet van toepassing, niet operationeel gekoppeld of te fijnmazig voor deze selectieschaal.`}
                         </p>
                       ) : null}
                     </div>