fix: guard corrupted parent on delete

apps/client/src/common/hooks/useEntryAction.ts

@@ -808,8 +808,12 @@ function optimisticDeleteEntries(entryIds: EntryId[], rundown: Rundown) {
     if (isOntimeBlock(entry) || !entry.parent) {
       order = order.filter((id) => id !== entry.id);
     } else {
-      const parent = entries[entry.parent] as OntimeBlock;
-      parent.entries = parent.entries.filter((parentEntry) => parentEntry !== entry.id);
+      const parent = entries[entry.parent];
+      if ('parent' in entries) {
+        (parent as OntimeBlock).entries = (parent as OntimeBlock).entries.filter(
+          (parentEntry) => parentEntry !== entry.id,
+        );
+      }
     }
 
     delete entries[entry.id];

apps/server/src/api-data/rundown/rundown.dao.ts

@@ -40,6 +40,7 @@ import {
   getUniqueId,
 } from './rundown.utils.js';
 import { makeRundownMetadata, ProcessedRundownMetadata } from './rundown.parser.js';
+import { consoleError } from '../../utils/console.js';
 
 /**
  * The currently loaded rundown in cache
@@ -243,8 +244,16 @@ function remove(rundown: Rundown, entry: OntimeEntry) {
     }
   } else if (entry.parent) {
     // at this point, we are handling entries inside a block, so we need to remove the reference
-    const parentBlock = rundown.entries[entry.parent] as OntimeBlock;
-    if (parentBlock) {
+    const parentBlock = rundown.entries[entry.parent];
+
+    // eslint-disable-next-line no-unused-labels -- dev code path
+    DEV: {
+      if (parentBlock && !isOntimeBlock(parentBlock)) {
+        consoleError(`Parent block with ID ${entry.parent} is not a valid OntimeBlock`);
+      }
+    }
+
+    if (parentBlock && isOntimeBlock(parentBlock)) {
       // we call a mutation to the parent event to remove the entry from the events
       const filteredEvents = deleteById(parentBlock.entries, entry.id);
       edit(rundown, { id: parentBlock.id, entries: filteredEvents });