#399

frontend/src/lib/postImportStorage.ts

@@ -1,4 +1,5 @@
 import type { PostImportOrigin,
+	      PostImportResetSnapshot,
 	      PostImportRow,
 	      PostImportSession,
 	      PostImportStatus,
@@ -137,6 +138,24 @@ const hasOnlyKeys = (
 ): boolean =>
     Object.keys (value).every (key => allowedKeys.includes (key))
 
+const sanitiseResetSnapshot = (value: unknown): PostImportResetSnapshot | null => {
+    if (!(isPlainObject (value)))
+      return null
+    if (typeof value.url !== 'string')
+      return null
+    if (!(isPlainObject (value.attributes)))
+      return null
+    if (!(hasOnlyKeys (value.attributes, ATTRIBUTE_KEYS)))
+      return null
+    if (!(Object.values (value.attributes).every (entry =>
+	typeof entry === 'string' || typeof entry === 'number')))
+      return null
+
+    return {
+	url: value.url,
+	attributes: value.attributes as Record<string, string | number> }
+}
+
 
 const sanitiseRow = (value: unknown): PostImportRow | null => {
     if (!(isPlainObject (value)))
@@ -166,8 +185,11 @@ const sanitiseRow = (value: unknown): PostImportRow | null => {
 
     const validationErrors = ensureStringListRecord (value.validationErrors)
     const fieldWarnings = ensureStringListRecord (value.fieldWarnings)
+    const resetSnapshot = sanitiseResetSnapshot (value.resetSnapshot)
     if (validationErrors == null || fieldWarnings == null)
       return null
+    if (resetSnapshot == null)
+      return null
 
     const importErrors =
 	value.importErrors == null
@@ -215,6 +237,7 @@ const sanitiseRow = (value: unknown): PostImportRow | null => {
 	existingPostId:
 	    isPositiveInteger (value.existingPostId) ? Number (value.existingPostId) : undefined,
 	metadataUrl: typeof value.metadataUrl === 'string' ? value.metadataUrl : undefined,
+	resetSnapshot,
 	createdPostId:
 	    isPositiveInteger (value.createdPostId) ? Number (value.createdPostId) : undefined,
 	importStatus: value.importStatus }