feat: Add support for saving and restoring last used system prompt

src/components/Option/Playground/Playground.tsx

@@ -6,14 +6,24 @@ import { webUIResumeLastChat } from "@/services/app"
 import {
   formatToChatHistory,
   formatToMessage,
+  getPromptById,
   getRecentChatFromWebUI
 } from "@/db"
+import { getLastUsedChatSystemPrompt } from "@/services/model-settings"
+import { useStoreChatModelSettings } from "@/store/model"
 
 export const Playground = () => {
   const drop = React.useRef<HTMLDivElement>(null)
   const [dropedFile, setDropedFile] = React.useState<File | undefined>()
-  const { selectedKnowledge, messages, setHistoryId, setHistory, setMessages } =
-    useMessageOption()
+  const {
+    selectedKnowledge,
+    messages,
+    setHistoryId,
+    setHistory,
+    setMessages,
+    setSelectedSystemPrompt
+  } = useMessageOption()
+  const { setSystemPrompt } = useStoreChatModelSettings()
 
   const [dropState, setDropState] = React.useState<
     "idle" | "dragging" | "error"
@@ -90,6 +100,19 @@ export const Playground = () => {
         setHistoryId(recentChat.history.id)
         setHistory(formatToChatHistory(recentChat.messages))
         setMessages(formatToMessage(recentChat.messages))
+
+        const lastUsedPrompt = await getLastUsedChatSystemPrompt(
+          recentChat.history.id
+        )
+        if (lastUsedPrompt) {
+          if (lastUsedPrompt.prompt_id) {
+            const prompt = await getPromptById(lastUsedPrompt.prompt_id)
+            if (prompt) {
+              setSelectedSystemPrompt(lastUsedPrompt.prompt_id)
+            }
+          }
+          setSystemPrompt(lastUsedPrompt.prompt_content)
+        }
       }
     }
   }

src/components/Option/Sidebar.tsx

@@ -5,7 +5,8 @@ import {
   formatToMessage,
   deleteByHistoryId,
   updateHistory,
-  pinHistory
+  pinHistory,
+  getPromptById
 } from "@/db"
 import { Empty, Skeleton, Dropdown, Menu } from "antd"
 import { useMessageOption } from "~/hooks/useMessageOption"
@@ -20,8 +21,10 @@ import { useNavigate } from "react-router-dom"
 import { useTranslation } from "react-i18next"
 import {
   getLastUsedChatModel,
+  getLastUsedChatSystemPrompt,
   lastUsedChatModelEnabled
 } from "@/services/model-settings"
+import { useStoreChatModelSettings } from "@/store/model"
 
 type Props = {
   onClose: () => void
@@ -35,8 +38,12 @@ export const Sidebar = ({ onClose }: Props) => {
     historyId,
     clearChat,
     setSelectedModel,
-    temporaryChat
+    temporaryChat,
+    setSelectedSystemPrompt
   } = useMessageOption()
+
+  const { setSystemPrompt } = useStoreChatModelSettings()
+
   const { t } = useTranslation(["option", "common"])
   const client = useQueryClient()
   const navigate = useNavigate()
@@ -127,7 +134,8 @@ export const Sidebar = ({ onClose }: Props) => {
   })
 
   return (
-    <div className={`overflow-y-auto z-99 ${temporaryChat ? 'pointer-events-none opacity-50' : ''}`}>
+    <div
+      className={`overflow-y-auto z-99 ${temporaryChat ? "pointer-events-none opacity-50" : ""}`}>
       {status === "success" && chatHistories.length === 0 && (
         <div className="flex justify-center items-center mt-20 overflow-hidden">
           <Empty description={t("common:noHistory")} />
@@ -173,6 +181,19 @@ export const Sidebar = ({ onClose }: Props) => {
                             setSelectedModel(currentChatModel)
                           }
                         }
+                        const lastUsedPrompt =
+                          await getLastUsedChatSystemPrompt(chat.id)
+                        if (lastUsedPrompt) {
+                          if (lastUsedPrompt.prompt_id) {
+                            const prompt = await getPromptById(
+                              lastUsedPrompt.prompt_id
+                            )
+                            if (prompt) {
+                              setSelectedSystemPrompt(lastUsedPrompt.prompt_id)
+                            }
+                          }
+                          setSystemPrompt(lastUsedPrompt.prompt_content)
+                        }
                         navigate("/")
                         onClose()
                       }}>

src/hooks/chat-helper/index.ts

@@ -1,5 +1,5 @@
 import { saveHistory, saveMessage } from "@/db"
-import { setLastUsedChatModel } from "@/services/model-settings"
+import { setLastUsedChatModel, setLastUsedChatSystemPrompt } from "@/services/model-settings"
 import { generateTitle } from "@/services/title"
 import { ChatHistory } from "@/store/option"
 
@@ -15,7 +15,9 @@ export const saveMessageOnError = async ({
   setHistoryId,
   isRegenerating,
   message_source = "web-ui",
-  message_type
+  message_type,
+  prompt_content,
+  prompt_id
 }: {
   e: any
   setHistory: (history: ChatHistory) => void
@@ -29,6 +31,8 @@ export const saveMessageOnError = async ({
   isRegenerating: boolean
   message_source?: "copilot" | "web-ui"
   message_type?: string
+  prompt_id?: string
+  prompt_content?: string
 }) => {
   if (
     e?.name === "AbortError" ||
@@ -73,6 +77,9 @@ export const saveMessageOnError = async ({
         message_type
       )
       await setLastUsedChatModel(historyId, selectedModel)
+      if (prompt_id || prompt_content) {
+        await setLastUsedChatSystemPrompt(historyId, { prompt_content, prompt_id })
+      }
     } else {
       const title = await generateTitle(selectedModel, userMessage, userMessage)
       const newHistoryId = await saveHistory(title, false, message_source)
@@ -100,6 +107,9 @@ export const saveMessageOnError = async ({
       )
       setHistoryId(newHistoryId.id)
       await setLastUsedChatModel(newHistoryId.id, selectedModel)
+      if (prompt_id || prompt_content) {
+        await setLastUsedChatSystemPrompt(historyId, { prompt_content, prompt_id })
+      }
     }
 
     return true
@@ -118,7 +128,9 @@ export const saveMessageOnSuccess = async ({
   fullText,
   source,
   message_source = "web-ui",
-  message_type, generationInfo
+  message_type, generationInfo,
+  prompt_id,
+  prompt_content
 }: {
   historyId: string | null
   setHistoryId: (historyId: string) => void
@@ -131,6 +143,8 @@ export const saveMessageOnSuccess = async ({
   message_source?: "copilot" | "web-ui",
   message_type?: string
   generationInfo?: any
+  prompt_id?: string
+  prompt_content?: string
 }) => {
   if (historyId) {
     if (!isRegenerate) {
@@ -158,6 +172,9 @@ export const saveMessageOnSuccess = async ({
       generationInfo
     )
     await setLastUsedChatModel(historyId, selectedModel!)
+    if (prompt_id || prompt_content) {
+      await setLastUsedChatSystemPrompt(historyId, { prompt_content, prompt_id })
+    }
   } else {
     const title = await generateTitle(selectedModel, message, message)
     const newHistoryId = await saveHistory(title, false, message_source)
@@ -185,5 +202,8 @@ export const saveMessageOnSuccess = async ({
     )
     setHistoryId(newHistoryId.id)
     await setLastUsedChatModel(newHistoryId.id, selectedModel!)
+    if (prompt_id || prompt_content) {
+      await setLastUsedChatSystemPrompt(historyId, { prompt_content, prompt_id })
+    }
   }
 }

src/hooks/useMessageOption.tsx

@@ -411,6 +411,8 @@ export const useMessageOption = () => {
   ) => {
     const url = await getOllamaURL()
     const userDefaultModelSettings = await getAllDefaultModelSettings()
+    let promptId: string | undefined = selectedSystemPrompt
+    let promptContent: string | undefined = undefined
 
     if (image.length > 0) {
       image = `data:image/jpeg;base64,${image.split(",")[1]}`
@@ -525,6 +527,7 @@ export const useMessageOption = () => {
             content: selectedPrompt.content
           })
         )
+        promptContent = selectedPrompt.content
       }
 
       if (isTempSystemprompt) {
@@ -533,6 +536,7 @@ export const useMessageOption = () => {
             content: currentChatModelSettings.systemPrompt
           })
         )
+        promptContent = currentChatModelSettings.systemPrompt
       }
 
       let generationInfo: any | undefined = undefined
@@ -611,7 +615,9 @@ export const useMessageOption = () => {
         image,
         fullText,
         source: [],
-        generationInfo
+        generationInfo,
+        prompt_content: promptContent,
+        prompt_id: promptId
       })
 
       setIsProcessing(false)
@@ -629,7 +635,9 @@ export const useMessageOption = () => {
         setHistory,
         setHistoryId,
         userMessage: message,
-        isRegenerating: isRegenerate
+        isRegenerating: isRegenerate,
+        prompt_content: promptContent,
+        prompt_id: promptId
       })
 
       if (!errorSave) {

src/services/model-settings.ts

@@ -125,4 +125,23 @@ export const setLastUsedChatModel = async (
   await storage.set(`lastUsedChatModel-${historyId}`, model)
 }
 
+
+export const getLastUsedChatSystemPrompt = async (
+  historyId: string
+): Promise<{ prompt_id?: string; prompt_content?: string } | undefined> => {
+  return await storage.get<{ prompt_id?: string; prompt_content?: string } | undefined>(
+    `lastUsedChatSystemPrompt-${historyId}`
+  )
+}
+
+export const setLastUsedChatSystemPrompt = async (
+  historyId: string,
+  prompt: {
+    prompt_id?: string
+    prompt_content?: string
+  }
+): Promise<void> => {
+  await storage.set(`lastUsedChatSystemPrompt-${historyId}`, prompt)
+}
+
 export { getAllModelSettings, setModelSetting }