add vector to prompt

packages/components/src/utils.ts

@@ -520,3 +520,22 @@ export const mapChatHistory = (options: ICommonObject): ChatMessageHistory => {
     }
     return new ChatMessageHistory(chatHistory)
 }
+
+/**
+ * Convert incoming chat history to string
+ * @param {IMessage[]} chatHistory
+ * @returns {string}
+ */
+export const convertChatHistoryToText = (chatHistory: IMessage[]): string => {
+    return chatHistory
+        .map((chatMessage) => {
+            if (chatMessage.type === 'apiMessage') {
+                return `Assistant: ${chatMessage.message}`
+            } else if (chatMessage.type === 'userMessage') {
+                return `Human: ${chatMessage.message}`
+            } else {
+                return `${chatMessage.message}`
+            }
+        })
+        .join('\n')
+}