Describe snapshot source revisions

src/frontend/utils/project-version-history.ts

@@ -49,8 +49,15 @@ export function getProjectRevisionSourceLabel(
 export function getProjectRevisionDescription(
   revision: ProjectRevisionSummaryDto
 ) {
+  const description = revision.description?.trim();
+  if (
+    description === `Undo ${revision.commandType}` ||
+    description === `Redo ${revision.commandType}`
+  ) {
+    return commandTypeLabels[revision.commandType] || revision.commandType;
+  }
   return (
-    revision.description?.trim() ||
+    description ||
     commandTypeLabels[revision.commandType] ||
     revision.commandType
   );
@@ -62,6 +69,26 @@ export function getProjectSnapshotKindLabel(
   return kind === "automatic" ? "Automatisch" : "Benannt";
 }
 
+export function getProjectSnapshotRevisionDescription(
+  snapshot: ProjectSnapshotMetadataDto
+) {
+  if (snapshot.sourceRevision === 0) {
+    return "Projektstart";
+  }
+  if (
+    !snapshot.sourceRevisionMetadata ||
+    snapshot.sourceRevisionMetadata.revisionNumber !==
+      snapshot.sourceRevision
+  ) {
+    return "Änderungsdetails nicht verfügbar";
+  }
+  return `${getProjectRevisionSourceLabel(
+    snapshot.sourceRevisionMetadata.source
+  )}: ${getProjectRevisionDescription(
+    snapshot.sourceRevisionMetadata
+  )}`;
+}
+
 export function mergeProjectRevisionPages(
   current: ProjectRevisionSummaryDto[],
   next: ProjectRevisionSummaryDto[]