From 85ec8e4d56deb58990788a8bd5444b799ece4731 Mon Sep 17 00:00:00 2001
From: Andrew Calcutt <acalcutt@techidiots.net>
Date: Fri, 13 Oct 2023 15:49:34 -0400
Subject: [PATCH] fix: simplify property check

Signed-off-by: Andrew Calcutt <acalcutt@techidiots.net>
---
 src/server.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/src/server.js b/src/server.js
index 0539685..68bd836 100644
--- a/src/server.js
+++ b/src/server.js
@@ -273,12 +273,11 @@ function start(opts) {
 
   for (const id of Object.keys(data)) {
     const item = data[id];
-    if (item.pmtiles && item.pmtiles.length !== 0) {
-      // valid pmtiles
-    } else if (item.mbtiles && item.mbtiles.length !== 0) {
-      // valid mbtiles
-    } else {
-      console.log(`Missing "pmtiles" or "mbtiles" property for ${id}`);
+    const fileType = Object.keys(data[id])[0];
+    if (!fileType || !(fileType === 'pmtiles' || fileType === 'mbtiles')) {
+      console.log(
+        `Missing "pmtiles" or "mbtiles" property for ${id} data source`,
+      );
       continue;
     }