chore: import upstream snapshot with attribution

2026-07-13 13:34:48 +08:00
commit 77bb5bf71f
3762 changed files with 353249 additions and 0 deletions
@@ -0,0 +1,44 @@
+import { UserResolverWithCaching } from '../user-resolver'
+import { MessageFormatter, MessageTextExtractor, MessageTextOutput } from './message-formatter'
+import { Message } from './message-types'
+
+export type TranscriptFormatter = (extractedMessages: MessageTextOutput[]) => Promise<string> | string
+
+export const buildConversationTranscript = async ({
+  messages,
+  ctx,
+  client,
+  customMessageFormatters,
+  customTranscriptFormatter,
+}: {
+  ctx: { botUserId: string }
+  client: ConstructorParameters<typeof UserResolverWithCaching>[0]
+  messages: Message[]
+  customMessageFormatters?: { [K in Message['type']]?: MessageFormatter }
+  customTranscriptFormatter?: TranscriptFormatter
+}): Promise<string> => {
+  const messageExtractor = new MessageTextExtractor({
+    botUserId: ctx.botUserId,
+    customFormatters: customMessageFormatters,
+    userResolver: new UserResolverWithCaching(client),
+  })
+
+  const extractedMessages = await messageExtractor.extractTextFromMessages(messages)
+  const transcriptFormatter = customTranscriptFormatter ?? DEFAULT_TRANSCRIPT_FORMATTER
+  const transcript = await transcriptFormatter(extractedMessages)
+
+  return transcript
+}
+
+const DEFAULT_TRANSCRIPT_FORMATTER: TranscriptFormatter = (extractedMessages) => {
+  const formattedMessages = extractedMessages.map((message) => {
+    const emoji = message.isBot ? '🤖' : '👤'
+    const name = message.user.name ?? (message.isBot ? 'Botpress' : 'User')
+    const header = `${emoji} ${name}:`
+    const body = message.text.join('\n')
+
+    return `${header}\n${body}`
+  })
+
+  return formattedMessages.join('\n\n---\n\n')
+}