validate all geometry collection by type

ambrazasp · Aug 23, 2023 · a0c7585 · a0c7585
1 parent a234ae3
commit a0c7585
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diff --git a/docs/validation/readme.md b/docs/validation/readme.md
@@ -7,6 +7,7 @@
 | `validateFeature`           | `feature: Feature`                            | [More info](#validatefeature)           |
 | `validateFeatures`          | `features: Feature[]`                         | [More info](#validatefeatures)          |
 | `validateFeatureCollection` | `collection: FeatureCollection`               | [More info](#validatefeaturecollection) |
+| `validateGeometryTypes`     | `types: string \| string [], geom: AllTypes`  | [More info](#validategeometrytypes)     |
 
 Each validation returns
 [ValidationResult](#validationresult) response
@@ -79,6 +80,25 @@ const valid = validateFeatureCollection({
 });
 ```
 
+## validateGeometryTypes
+
+Example:
+
+```js
+const valid = validateGeometryTypes(['Point'], {
+  type: 'FeatureCollection',
+  features: [
+    {
+      type: 'Feature',
+      geometry: {
+        type: 'Point',
+        coordinates: [11, 22],
+      },
+    },
+  ],
+});
+```
+
 ## ValidationResult
 
 Type, that consists of:

diff --git a/src/helpers.ts b/src/helpers.ts
@@ -90,4 +90,4 @@ export function getFeatures(geom: AllTypes): Feature[] {
 
 export function getFeatureCollection(geom: AllTypes): FeatureCollection {
   return getFeatureCollectionWithFeatures(getFeatures(geom));
-}
+}
diff --git a/src/validate.ts b/src/validate.ts
@@ -1,5 +1,6 @@
 import { isNumber, isObject } from 'lodash';
 import {
+  AllTypes,
   CoordinatesTypes,
   Feature,
   FeatureCollection,
@@ -9,6 +10,7 @@ import {
   ValidationError,
   ValidationResult,
 } from './types';
+import { getGeometries } from './helpers';
 
 function transformResponse(
   error?: string,
@@ -133,3 +135,30 @@ export function validateFeatureCollection(
 
   return validateFeatures(geom.features);
 }
+
+export function validateGeometryTypes(
+  types: string | string[],
+  geom: AllTypes
+) {
+  if (!Array.isArray(types)) types = [types];
+
+  const everyTypeValid = types.every((t) =>
+    Object.values(GeometryType).includes(t)
+  );
+
+  if (!everyTypeValid) {
+    throw new Error(`Passed types are not valid - ["${types.join("', '")}"]`);
+  }
+
+  const invalidTypes = getGeometries(geom)
+    .map((item) => item.type)
+    .filter((t) => !types.includes(t));
+
+  if (!invalidTypes?.length) {
+    return transformResponse(ValidationError.INVALID_TYPE, {
+      types: invalidTypes,
+    });
+  }
+
+  return transformResponse();
+}