feat: Add export/import functions for chat history, promt and knowledge

src/libs/export-import.ts

@@ -0,0 +1,66 @@
+import {
+  exportChatHistory,
+  exportPrompts,
+  importChatHistory,
+  importPrompts
+} from "@/db"
+import { exportKnowledge, importKnowledge } from "@/db/knowledge"
+import { exportVectors, importVectors } from "@/db/vector"
+import { message } from "antd"
+
+export const exportPageAssistData = async () => {
+  const knowledge = await exportKnowledge()
+  const chat = await exportChatHistory()
+  const vector = await exportVectors()
+  const prompts = await exportPrompts()
+
+  const data = {
+    knowledge,
+    chat,
+    vector,
+    prompts
+  }
+
+  const dataStr = JSON.stringify(data)
+
+  const blob = new Blob([dataStr], { type: "application/json" })
+  const url = URL.createObjectURL(blob)
+
+  const a = document.createElement("a")
+  a.href = url
+  a.download = `page-assist-${new Date().toISOString()}.json`
+  a.click()
+  URL.revokeObjectURL(url)
+}
+
+export const importPageAssistData = async (file: File) => {
+  const reader = new FileReader()
+  reader.onload = async () => {
+    try {
+      const data = JSON.parse(reader.result as string)
+
+      if (data?.knowledge) {
+        await importKnowledge(data.knowledge)
+      }
+
+      if (data?.chat) {
+        await importChatHistory(data.chat)
+      }
+
+      if (data?.vector) {
+        await importVectors(data.vector)
+      }
+
+      if (data?.prompts) {
+        await importPrompts(data.prompts)
+      }
+
+      message.success("Data imported successfully")
+    } catch (e) {
+      console.error(e)
+      message.error("Failed to import data")
+    }
+  }
+
+  reader.readAsText(file)
+}