Feat: Deleting the last tool of the agent will delete the tool node #3221 (#8376)

### What problem does this PR solve?

Feat: Deleting the last tool of the agent will delete the tool node
#3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/agent/canvas/node/tool-node.tsx

@@ -1,8 +1,9 @@
 import { IAgentForm, IToolNode } from '@/interfaces/database/agent';
 import { Handle, NodeProps, Position } from '@xyflow/react';
 import { get } from 'lodash';
-import { memo } from 'react';
+import { memo, useCallback } from 'react';
 import { NodeHandleId } from '../../constant';
+import { ToolCard } from '../../form/agent-form/agent-tools';
 import useGraphStore from '../../store';
 import { NodeWrapper } from './node-wrapper';
 
@@ -16,6 +17,8 @@ function InnerToolNode({
   const upstreamAgentNodeId = edges.find((x) => x.target === id)?.source;
   const upstreamAgentNode = getNode(upstreamAgentNodeId);
 
+  const handleClick = useCallback(() => {}, []);
+
   const tools: IAgentForm['tools'] = get(
     upstreamAgentNode,
     'data.form.tools',
@@ -30,9 +33,16 @@ function InnerToolNode({
         position={Position.Top}
         isConnectable={isConnectable}
       ></Handle>
-      <ul className="space-y-1">
+      <ul className="space-y-2">
         {tools.map((x) => (
-          <li key={x.component_name}>{x.component_name}</li>
+          <ToolCard
+            key={x.component_name}
+            onClick={handleClick}
+            className="cursor-pointer"
+            data-tool={x.component_name}
+          >
+            {x.component_name}
+          </ToolCard>
         ))}
       </ul>
     </NodeWrapper>

web/src/pages/agent/form/agent-form/agent-tools.tsx

@@ -0,0 +1,53 @@
+import { BlockButton } from '@/components/ui/button';
+import { cn } from '@/lib/utils';
+import { PencilLine, X } from 'lucide-react';
+import { PropsWithChildren } from 'react';
+import { ToolPopover } from './tool-popover';
+import { useDeleteAgentNodeTools } from './tool-popover/use-update-tools';
+import { useGetAgentToolNames } from './use-get-tools';
+
+export function ToolCard({
+  children,
+  className,
+  ...props
+}: PropsWithChildren & React.HTMLAttributes<HTMLLIElement>) {
+  return (
+    <li
+      {...props}
+      className={cn(
+        'flex bg-background-card p-1 rounded-sm justify-between',
+        className,
+      )}
+    >
+      {children}
+    </li>
+  );
+}
+
+export function AgentTools() {
+  const { toolNames } = useGetAgentToolNames();
+  const { deleteNodeTool } = useDeleteAgentNodeTools();
+
+  return (
+    <section className="space-y-2.5">
+      <span className="text-text-sub-title">Tools</span>
+      <ul className="space-y-2">
+        {toolNames.map((x) => (
+          <ToolCard key={x}>
+            {x}
+            <div className="flex items-center gap-2 text-text-sub-title">
+              <PencilLine className="size-4 cursor-pointer" />
+              <X
+                className="size-4 cursor-pointer"
+                onClick={deleteNodeTool(x)}
+              />
+            </div>
+          </ToolCard>
+        ))}
+      </ul>
+      <ToolPopover>
+        <BlockButton>Add Tool</BlockButton>
+      </ToolPopover>
+    </section>
+  );
+}

web/src/pages/agent/form/agent-form/index.tsx

@@ -21,8 +21,8 @@ import { AgentInstanceContext } from '../../context';
 import { INextOperatorForm } from '../../interface';
 import { Output } from '../components/output';
 import { PromptEditor } from '../components/prompt-editor';
-import { ToolPopover } from './tool-popover';
-import { useToolOptions, useValues } from './use-values';
+import { AgentTools } from './agent-tools';
+import { useValues } from './use-values';
 import { useWatchFormChange } from './use-watch-change';
 
 const FormSchema = z.object({
@@ -67,8 +67,6 @@ const AgentForm = ({ node }: INextOperatorForm) => {
 
   const { addCanvasNode } = useContext(AgentInstanceContext);
 
-  const toolOptions = useToolOptions();
-
   return (
     <Form {...form}>
       <form
@@ -113,17 +111,17 @@ const AgentForm = ({ node }: INextOperatorForm) => {
             )}
           />
         </FormContainer>
-        <ToolPopover>
-          <BlockButton>Add Tool</BlockButton>
-        </ToolPopover>
-        <BlockButton
-          onClick={addCanvasNode(Operator.Agent, {
-            nodeId: node?.id,
-            position: Position.Bottom,
-          })}
-        >
-          Add Agent
-        </BlockButton>
+        <FormContainer>
+          <AgentTools></AgentTools>
+          <BlockButton
+            onClick={addCanvasNode(Operator.Agent, {
+              nodeId: node?.id,
+              position: Position.Bottom,
+            })}
+          >
+            Add Agent
+          </BlockButton>
+        </FormContainer>
         <Output list={outputList}></Output>
       </form>
     </Form>

web/src/pages/agent/form/agent-form/tool-popover/index.tsx

@@ -3,12 +3,12 @@ import {
   PopoverContent,
   PopoverTrigger,
 } from '@/components/ui/popover';
-import { IAgentForm } from '@/interfaces/database/agent';
 import { Operator } from '@/pages/agent/constant';
 import { AgentFormContext, AgentInstanceContext } from '@/pages/agent/context';
 import { Position } from '@xyflow/react';
-import { get } from 'lodash';
-import { PropsWithChildren, useCallback, useContext, useMemo } from 'react';
+import { PropsWithChildren, useCallback, useContext } from 'react';
+import { useDeleteToolNode } from '../use-delete-tool-node';
+import { useGetAgentToolNames } from '../use-get-tools';
 import { ToolCommand } from './tool-command';
 import { useUpdateAgentNodeTools } from './use-update-tools';
 
@@ -16,23 +16,24 @@ export function ToolPopover({ children }: PropsWithChildren) {
   const { addCanvasNode } = useContext(AgentInstanceContext);
   const node = useContext(AgentFormContext);
   const { updateNodeTools } = useUpdateAgentNodeTools();
-
-  const toolNames = useMemo(() => {
-    const tools: IAgentForm['tools'] = get(node, 'data.form.tools', []);
-    return tools.map((x) => x.component_name);
-  }, [node]);
+  const { toolNames } = useGetAgentToolNames();
+  const { deleteToolNode } = useDeleteToolNode();
 
   const handleChange = useCallback(
     (value: string[]) => {
-      if (Array.isArray(value) && value.length > 0 && node?.id) {
+      if (Array.isArray(value) && node?.id) {
         updateNodeTools(value);
-        addCanvasNode(Operator.Tool, {
-          position: Position.Bottom,
-          nodeId: node?.id,
-        })();
+        if (value.length > 0) {
+          addCanvasNode(Operator.Tool, {
+            position: Position.Bottom,
+            nodeId: node?.id,
+          })();
+        } else {
+          deleteToolNode(node.id); // TODO: The tool node should be derived from the agent tools data
+        }
       }
     },
-    [addCanvasNode, node?.id, updateNodeTools],
+    [addCanvasNode, deleteToolNode, node?.id, updateNodeTools],
   );
 
   return (

web/src/pages/agent/form/agent-form/tool-popover/use-update-tools.ts

@@ -2,17 +2,26 @@ import { IAgentForm } from '@/interfaces/database/agent';
 import { AgentFormContext } from '@/pages/agent/context';
 import useGraphStore from '@/pages/agent/store';
 import { get } from 'lodash';
-import { useCallback, useContext } from 'react';
+import { useCallback, useContext, useMemo } from 'react';
+import { useDeleteToolNode } from '../use-delete-tool-node';
+
+export function useGetNodeTools() {
+  const node = useContext(AgentFormContext);
+
+  return useMemo(() => {
+    const tools: IAgentForm['tools'] = get(node, 'data.form.tools');
+    return tools;
+  }, [node]);
+}
 
 export function useUpdateAgentNodeTools() {
   const { updateNodeForm } = useGraphStore((state) => state);
   const node = useContext(AgentFormContext);
+  const tools = useGetNodeTools();
 
   const updateNodeTools = useCallback(
     (value: string[]) => {
       if (node?.id) {
-        const tools: IAgentForm['tools'] = get(node, 'data.form.tools');
-
         const nextValue = value.reduce<IAgentForm['tools']>((pre, cur) => {
           const tool = tools.find((x) => x.component_name === cur);
           pre.push(tool ? tool : { component_name: cur, params: {} });
@@ -22,8 +31,37 @@ export function useUpdateAgentNodeTools() {
         updateNodeForm(node?.id, nextValue, ['tools']);
       }
     },
-    [node, updateNodeForm],
+    [node?.id, tools, updateNodeForm],
   );
 
-  return { updateNodeTools };
+  const deleteNodeTool = useCallback(
+    (value: string) => {
+      updateNodeTools([value]);
+    },
+    [updateNodeTools],
+  );
+
+  return { updateNodeTools, deleteNodeTool };
+}
+
+export function useDeleteAgentNodeTools() {
+  const { updateNodeForm } = useGraphStore((state) => state);
+  const tools = useGetNodeTools();
+  const node = useContext(AgentFormContext);
+  const { deleteToolNode } = useDeleteToolNode();
+
+  const deleteNodeTool = useCallback(
+    (value: string) => () => {
+      const nextTools = tools.filter((x) => x.component_name !== value);
+      if (node?.id) {
+        updateNodeForm(node?.id, nextTools, ['tools']);
+        if (nextTools.length === 0) {
+          deleteToolNode(node?.id);
+        }
+      }
+    },
+    [deleteToolNode, node?.id, tools, updateNodeForm],
+  );
+
+  return { deleteNodeTool };
 }

web/src/pages/agent/form/agent-form/use-delete-tool-node.ts

@@ -0,0 +1,24 @@
+import { useCallback } from 'react';
+import { NodeHandleId } from '../../constant';
+import useGraphStore from '../../store';
+
+export function useDeleteToolNode() {
+  const { edges, deleteEdgeById, deleteNodeById } = useGraphStore(
+    (state) => state,
+  );
+  const deleteToolNode = useCallback(
+    (agentNodeId: string) => {
+      const edge = edges.find(
+        (x) => x.source === agentNodeId && x.sourceHandle === NodeHandleId.Tool,
+      );
+
+      if (edge) {
+        deleteEdgeById(edge.id);
+        deleteNodeById(edge.target);
+      }
+    },
+    [deleteEdgeById, deleteNodeById, edges],
+  );
+
+  return { deleteToolNode };
+}

web/src/pages/agent/form/agent-form/use-get-tools.ts

@@ -0,0 +1,15 @@
+import { IAgentForm } from '@/interfaces/database/agent';
+import { get } from 'lodash';
+import { useContext, useMemo } from 'react';
+import { AgentFormContext } from '../../context';
+
+export function useGetAgentToolNames() {
+  const node = useContext(AgentFormContext);
+
+  const toolNames = useMemo(() => {
+    const tools: IAgentForm['tools'] = get(node, 'data.form.tools', []);
+    return tools.map((x) => x.component_name);
+  }, [node]);
+
+  return { toolNames };
+}

web/src/pages/agent/form/agent-form/use-values.ts

@@ -2,7 +2,7 @@ import { useFetchModelId } from '@/hooks/logic-hooks';
 import { RAGFlowNodeType } from '@/interfaces/database/flow';
 import { get, isEmpty } from 'lodash';
 import { useMemo } from 'react';
-import { Operator, initialAgentValues } from '../../constant';
+import { initialAgentValues } from '../../constant';
 
 export function useValues(node?: RAGFlowNodeType) {
   const llmId = useFetchModelId();
@@ -28,48 +28,3 @@ export function useValues(node?: RAGFlowNodeType) {
 
   return values;
 }
-
-function buildOptions(list: string[]) {
-  return list.map((x) => ({ label: x, value: x }));
-}
-
-export function useToolOptions() {
-  const options = useMemo(() => {
-    const options = [
-      {
-        label: 'Search',
-        options: buildOptions([
-          Operator.Google,
-          Operator.Bing,
-          Operator.DuckDuckGo,
-          Operator.Wikipedia,
-          Operator.YahooFinance,
-          Operator.PubMed,
-          Operator.GoogleScholar,
-        ]),
-      },
-      {
-        label: 'Communication',
-        options: buildOptions([Operator.Email]),
-      },
-      {
-        label: 'Productivity',
-        options: [],
-      },
-      {
-        label: 'Developer',
-        options: buildOptions([
-          Operator.GitHub,
-          Operator.ExeSQL,
-          Operator.Invoke,
-          Operator.Crawler,
-          Operator.Code,
-        ]),
-      },
-    ];
-
-    return options;
-  }, []);
-
-  return options;
-}

web/src/pages/agent/form/tavily-form/index.tsx

@@ -15,7 +15,7 @@ import { INextOperatorForm } from '../../interface';
 import { useValues } from './use-values';
 import { useWatchFormChange } from './use-watch-change';
 
-const MessageForm = ({ node }: INextOperatorForm) => {
+const TavilyForm = ({ node }: INextOperatorForm) => {
   const values = useValues(node);
 
   const FormSchema = z.object({
@@ -58,4 +58,4 @@ const MessageForm = ({ node }: INextOperatorForm) => {
   );
 };
 
-export default MessageForm;
+export default TavilyForm;

web/src/pages/agent/form/tool-form/constant.ts

@@ -0,0 +1,36 @@
+import { Operator } from '../../constant';
+import AkShareForm from '../akshare-form';
+import ArXivForm from '../arxiv-form';
+import BingForm from '../bing-form';
+import CodeForm from '../code-form';
+import CrawlerForm from '../crawler-form';
+import DeepLForm from '../deepl-form';
+import DuckDuckGoForm from '../duckduckgo-form';
+import EmailForm from '../email-form';
+import ExeSQLForm from '../exesql-form';
+import GithubForm from '../github-form';
+import GoogleForm from '../google-form';
+import GoogleScholarForm from '../google-scholar-form';
+import PubMedForm from '../pubmed-form';
+import RetrievalForm from '../retrieval-form/next';
+import WikipediaForm from '../wikipedia-form';
+import YahooFinanceForm from '../yahoo-finance-form';
+
+export const ToolFormConfigMap = {
+  [Operator.Retrieval]: RetrievalForm,
+  [Operator.Code]: CodeForm,
+  [Operator.DuckDuckGo]: DuckDuckGoForm,
+  [Operator.Wikipedia]: WikipediaForm,
+  [Operator.PubMed]: PubMedForm,
+  [Operator.ArXiv]: ArXivForm,
+  [Operator.Google]: GoogleForm,
+  [Operator.Bing]: BingForm,
+  [Operator.GoogleScholar]: GoogleScholarForm,
+  [Operator.DeepL]: DeepLForm,
+  [Operator.GitHub]: GithubForm,
+  [Operator.ExeSQL]: ExeSQLForm,
+  [Operator.AkShare]: AkShareForm,
+  [Operator.YahooFinance]: YahooFinanceForm,
+  [Operator.Crawler]: CrawlerForm,
+  [Operator.Email]: EmailForm,
+};

web/src/pages/agent/form/tool-form/index.tsx

@@ -1,7 +1,20 @@
-import { INextOperatorForm } from '../../interface';
+import useGraphStore from '../../store';
+import { ToolFormConfigMap } from './constant';
 
-const ToolForm = ({ node }: INextOperatorForm) => {
-  return <section>xxx</section>;
+const EmptyContent = () => <div></div>;
+
+const ToolForm = () => {
+  const clickedToolId = useGraphStore((state) => state.clickedToolId);
+
+  const ToolForm =
+    ToolFormConfigMap[clickedToolId as keyof typeof ToolFormConfigMap] ??
+    EmptyContent;
+
+  return (
+    <section>
+      <ToolForm key={clickedToolId}></ToolForm>
+    </section>
+  );
 };
 
 export default ToolForm;

web/src/pages/agent/hooks/use-add-node.ts

@@ -184,7 +184,7 @@ function useAddChildEdge() {
   return { addChildEdge };
 }
 
-function useAddTooNode() {
+function useAddToolNode() {
   const addNode = useGraphStore((state) => state.addNode);
   const getNode = useGraphStore((state) => state.getNode);
   const addEdge = useGraphStore((state) => state.addEdge);
@@ -241,7 +241,7 @@ export function useAddNode(reactFlowInstance?: ReactFlowInstance<any, any>) {
   const initializeOperatorParams = useInitializeOperatorParams();
   const { calculateNewlyBackChildPosition } = useCalculateNewlyChildPosition();
   const { addChildEdge } = useAddChildEdge();
-  const { addToolNode } = useAddTooNode();
+  const { addToolNode } = useAddToolNode();
   //   const [reactFlowInstance, setReactFlowInstance] =
   //     useState<ReactFlowInstance<any, any>>();
 

web/src/pages/agent/hooks/use-show-drawer.tsx

@@ -14,6 +14,7 @@ export const useShowFormDrawer = () => {
     clickedNodeId: clickNodeId,
     setClickedNodeId,
     getNode,
+    setClickedToolId,
   } = useGraphStore((state) => state);
   const {
     visible: formDrawerVisible,
@@ -21,12 +22,13 @@ export const useShowFormDrawer = () => {
     showModal: showFormDrawer,
   } = useSetModalState();
 
-  const handleShow = useCallback(
-    (node: Node) => {
+  const handleShow: NodeMouseHandler = useCallback(
+    (e, node: Node) => {
       setClickedNodeId(node.id);
+      setClickedToolId(get(e.target, 'dataset.tool'));
       showFormDrawer();
     },
-    [showFormDrawer, setClickedNodeId],
+    [setClickedNodeId, setClickedToolId, showFormDrawer],
   );
 
   return {
@@ -118,7 +120,7 @@ export function useShowDrawer({
       if (!ExcludedNodes.some((x) => x === node.data.label)) {
         hideSingleDebugDrawer();
         hideRunOrChatDrawer();
-        showFormDrawer(node);
+        showFormDrawer(e, node);
       }
       // handle single debug icon click
       if (

web/src/pages/agent/store.ts

@@ -35,6 +35,7 @@ export type RFState = {
   selectedNodeIds: string[];
   selectedEdgeIds: string[];
   clickedNodeId: string; // currently selected node
+  clickedToolId: string; // currently selected tool id
   onNodesChange: OnNodesChange<RAGFlowNodeType>;
   onEdgesChange: OnEdgesChange;
   onConnect: OnConnect;
@@ -73,6 +74,7 @@ export type RFState = {
   updateNodeName: (id: string, name: string) => void;
   generateNodeName: (name: string) => string;
   setClickedNodeId: (id?: string) => void;
+  setClickedToolId: (id?: string) => void;
 };
 
 // this is our useStore hook that we can use in our components to get parts of the store and call actions
@@ -84,6 +86,7 @@ const useGraphStore = create<RFState>()(
       selectedNodeIds: [] as string[],
       selectedEdgeIds: [] as string[],
       clickedNodeId: '',
+      clickedToolId: '',
       onNodesChange: (changes) => {
         set({
           nodes: applyNodeChanges(changes, get().nodes),
@@ -465,6 +468,9 @@ const useGraphStore = create<RFState>()(
 
         return generateNodeNamesWithIncreasingIndex(name, nodes);
       },
+      setClickedToolId: (id?: string) => {
+        set({ clickedToolId: id });
+      },
     })),
     { name: 'graph', trace: true },
   ),