test: 暂存代码

src/main/knowledge/normalizer.ts

@@ -0,0 +1,55 @@
+import { createHash } from 'crypto'
+import type {
+  KnowledgeNormalizedMessage,
+  KnowledgeSourceMessage
+} from '../../shared/knowledge'
+
+const compact = (value: string | undefined): string => value?.replace(/\s+/g, ' ').trim() || ''
+
+function digest(value: string): string {
+  return createHash('sha256').update(value).digest('hex')
+}
+
+/**
+ * Converts a read-only archive record into text safe for local search. Paths,
+ * binary media and raw voice data are deliberately excluded.
+ */
+export function normalizeKnowledgeMessage(
+  source: KnowledgeSourceMessage
+): KnowledgeNormalizedMessage {
+  const sections: string[] = []
+  const messageText = compact(source.text)
+  if (messageText) sections.push(messageText)
+
+  const transcript = compact(source.voiceTranscript)
+  if (transcript) sections.push(`语音转写：${transcript}`)
+
+  const attachmentName = compact(source.attachment?.name)
+  if (attachmentName) {
+    const label = source.attachment?.kind === 'link' ? '链接' : '附件'
+    sections.push(`${label}：${attachmentName}`)
+  }
+  const url = compact(source.attachment?.url)
+  if (url) sections.push(`地址：${url}`)
+
+  const searchableText = sections.join('\n')
+  return {
+    ...source,
+    text: messageText || undefined,
+    voiceTranscript: transcript || undefined,
+    searchableText,
+    contentHash: digest(
+      JSON.stringify({
+        messageId: source.messageId,
+        createTime: source.createTime,
+        senderId: source.senderId || '',
+        kind: source.kind,
+        searchableText
+      })
+    )
+  }
+}
+
+export function isIndexableKnowledgeMessage(message: KnowledgeNormalizedMessage): boolean {
+  return Boolean(message.searchableText.trim())
+}