rework band info creation to make sure output contains all selector vals

src/utils.js

@@ -365,36 +365,35 @@ export const getPyramidMetadata = (multiscales) => {
  * @returns Object containing bandName, {[dimension]: dimensionValue} pairs
  */
 export const getBandInformation = (selector) => {
-  const combinedBands = Object.keys(selector)
-    .filter((key) => Array.isArray(selector[key]))
-    .reduce((bandMapping, selectorKey) => {
-      const values = selector[selectorKey]
-      let keys
-      if (typeof values[0] === 'string') {
-        keys = values
+  const keys = Object.keys(selector).filter((key) =>
+    Array.isArray(selector[key])
+  )
+  if (keys.length === 0) return {}
+  let combinedBands = {}
+  keys.forEach((key) => {
+    const newCombinedBands = {}
+    selector[key].forEach((value) => {
+      const valueKey = typeof value === 'string' ? value : key + '_' + value
+      if (Object.keys(combinedBands).length === 0) {
+        newCombinedBands[valueKey] = { [key]: value }
       } else {
-        keys = values.map((d) => selectorKey + '_' + d)
+        Object.keys(combinedBands).forEach((existingKey) => {
+          newCombinedBands[existingKey + '_' + valueKey] = {
+            ...combinedBands[existingKey],
+            [key]: value,
+          }
+        })
       }
-
-      const bands = Object.keys(bandMapping)
-      const updatedBands = {}
-      keys.forEach((key, i) => {
-        if (bands.length > 0) {
-          bands.forEach((band) => {
-            const bandKey = `${band}_${key}`
-            updatedBands[bandKey] = {
-              ...bandMapping[band],
-              [selectorKey]: values[i],
-            }
-          })
-        } else {
-          updatedBands[key] = { [selectorKey]: values[i] }
-        }
+    })
+    combinedBands = newCombinedBands
+  })
+  Object.keys(selector).forEach((key) => {
+    if (!Array.isArray(selector[key])) {
+      Object.keys(combinedBands).forEach((combinedKey) => {
+        combinedBands[combinedKey][key] = selector[key]
       })
-
-      return updatedBands
-    }, {})
-
+    }
+  })
   return combinedBands
 }