From e12d8f54d4591e074cd9056361eb984ef052a0f6 Mon Sep 17 00:00:00 2001
From: Artemy <artegoser@gmail.com>
Date: Sun, 26 Nov 2023 15:56:49 +0300
Subject: [PATCH] feat: convert all multipolygons to polygons

---
 package-lock.json   |  4 ++--
 package.json        |  2 +-
 tools/GeoBuilder.js | 21 +++++++++++++++++----
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fbcd9f0..4bc80c9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cimengine-build-tools",
-  "version": "1.4.3",
+  "version": "1.5.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cimengine-build-tools",
-      "version": "1.4.3",
+      "version": "1.5.0",
       "license": "MIT",
       "dependencies": {
         "@turf/turf": "^6.5.0",
diff --git a/package.json b/package.json
index 9832d6b..631035e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cimengine-build-tools",
-  "version": "1.4.3",
+  "version": "1.5.0",
   "description": "Geojson data processing tools for CIMEngine",
   "main": "index.js",
   "scripts": {
diff --git a/tools/GeoBuilder.js b/tools/GeoBuilder.js
index b5d6e22..f4fb46e 100644
--- a/tools/GeoBuilder.js
+++ b/tools/GeoBuilder.js
@@ -42,12 +42,25 @@ for (country of layers) {
     )
   );
 
+  co_features.features = co_features.features.flatMap((val) => {
+    if (val?.geometry?.type === "MultiPolygon") {
+      return val.geometry.coordinates.map((coordinateSet) => {
+        return {
+          ...val,
+          geometry: {
+            type: "Polygon",
+            coordinates: coordinateSet,
+          },
+        };
+      });
+    } else {
+      return val;
+    }
+  });
+
   co_features.features = co_features.features.map((val) => {
-    if (val?.geometry?.type === "Polygon") {
+    if (val?.geometry?.type.endsWith("Polygon")) {
       val.properties = {};
-    } else if (val?.geometry?.type === "MultiPolygon") {
-      console.error("Error: MultiPolygons are not allowed!");
-      process.exit(1);
     }
 
     return val;