internal: incomplete vault systems behind feature flag (#2340)

packages/encryption/src/Domain/Keys/KeySystemItemsKey/KeySystemItemsKey.ts

@@ -0,0 +1,41 @@
+import { ContentType, ProtocolVersion } from '@standardnotes/common'
+import {
+  ConflictStrategy,
+  DecryptedItem,
+  DecryptedItemInterface,
+  DecryptedPayloadInterface,
+  HistoryEntryInterface,
+  KeySystemItemsKeyContent,
+  KeySystemItemsKeyInterface,
+} from '@standardnotes/models'
+
+export function isKeySystemItemsKey(x: unknown): x is KeySystemItemsKeyInterface {
+  return (x as KeySystemItemsKeyInterface).content_type === ContentType.KeySystemItemsKey
+}
+
+/**
+ * A key used to encrypt other items. Items keys are synced and persisted.
+ */
+export class KeySystemItemsKey extends DecryptedItem<KeySystemItemsKeyContent> implements KeySystemItemsKeyInterface {
+  creationTimestamp: number
+  keyVersion: ProtocolVersion
+  itemsKey: string
+  rootKeyToken: string
+
+  constructor(payload: DecryptedPayloadInterface<KeySystemItemsKeyContent>) {
+    super(payload)
+
+    this.creationTimestamp = payload.content.creationTimestamp
+    this.keyVersion = payload.content.version
+    this.itemsKey = this.payload.content.itemsKey
+    this.rootKeyToken = this.payload.content.rootKeyToken
+  }
+
+  /** Do not duplicate vault items keys. Always keep original */
+  override strategyWhenConflictingWithItem(
+    _item: DecryptedItemInterface,
+    _previousRevision?: HistoryEntryInterface,
+  ): ConflictStrategy {
+    return ConflictStrategy.KeepBase
+  }
+}