fix: remove empty revisions to fix typescript error and use default flag for first release

related to #430

scripts/buildData.ts

@@ -141,12 +141,17 @@ function getUniqueTags(items: Item[]): string[] {
   return Array.from(tags).sort();
 }
 
-function getFlag(item: Item, latestRelease: string): Flag {
+function getFlag(item: Item, allReleases: string[]): Flag {
+  // return default flag if this is the first edition of the radar
+  if (allReleases.length === 1) {
+    return Flag.Default;
+  }
+
+  const latestRelease = allReleases[allReleases.length - 1];
   const revisions = item.revisions || [];
-  const isInLatestRelease = !!(
-    revisions.length &&
-    revisions[revisions.length - 1].release === latestRelease
-  );
+  const isInLatestRelease =
+    revisions.length > 0 &&
+    revisions[revisions.length - 1].release === latestRelease;
 
   if (revisions.length == 1 && isInLatestRelease) {
     return Flag.New;
@@ -190,11 +195,11 @@ function postProcessItems(items: Item[]): {
 
   const releases = getUniqueReleases(filteredItems);
   const uniqueTags = getUniqueTags(filteredItems);
-  const latestRelease = releases[releases.length - 1];
-  const processedItems = filteredItems.map((item) => ({
+  const processedItems = filteredItems.map((item) => {
+    const processedItem = {
       ...item,
       position: positioner.getNextPosition(item.quadrant, item.ring),
-    flag: getFlag(item, latestRelease),
+      flag: getFlag(item, releases),
       // only keep revision which ring or body is different
       revisions: item.revisions
         ?.filter((revision, index, revisions) => {
@@ -207,7 +212,15 @@ function postProcessItems(items: Item[]): {
           );
         })
         .reverse(),
-  }));
+    };
+
+    // unset revisions if there are none
+    if (!processedItem.revisions?.length) {
+      delete processedItem.revisions;
+    }
+
+    return processedItem;
+  });
 
   return { releases, tags: uniqueTags, items: processedItems };
 }