Feat: Add a tool operator node from the agent form #3221 (#8344)

### What problem does this PR solve?
Feat: Add a tool operator node from the agent form #3221

### Type of change


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

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

@@ -3,15 +3,33 @@ import {
   PopoverContent,
   PopoverTrigger,
 } from '@/components/ui/popover';
-import { PropsWithChildren } from 'react';
+import { Operator } from '@/pages/agent/constant';
+import { AgentFormContext, AgentInstanceContext } from '@/pages/agent/context';
+import { Position } from '@xyflow/react';
+import { PropsWithChildren, useCallback, useContext } from 'react';
 import { ToolCommand } from './tool-command';
 
 export function ToolPopover({ children }: PropsWithChildren) {
+  const { addCanvasNode } = useContext(AgentInstanceContext);
+  const node = useContext(AgentFormContext);
+
+  const handleChange = useCallback(
+    (value: string[]) => {
+      if (Array.isArray(value) && value.length > 0) {
+        addCanvasNode(Operator.Tool, {
+          position: Position.Bottom,
+          nodeId: node?.id,
+        })();
+      }
+    },
+    [addCanvasNode, node?.id],
+  );
+
   return (
     <Popover>
       <PopoverTrigger asChild>{children}</PopoverTrigger>
       <PopoverContent className="w-80 p-0">
-        <ToolCommand></ToolCommand>
+        <ToolCommand onChange={handleChange}></ToolCommand>
       </PopoverContent>
     </Popover>
   );

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

@@ -0,0 +1,61 @@
+import { FormContainer } from '@/components/form-container';
+import {
+  Form,
+  FormControl,
+  FormField,
+  FormItem,
+  FormLabel,
+  FormMessage,
+} from '@/components/ui/form';
+import { RAGFlowSelect } from '@/components/ui/select';
+import { zodResolver } from '@hookform/resolvers/zod';
+import { useForm } from 'react-hook-form';
+import { z } from 'zod';
+import { INextOperatorForm } from '../../interface';
+import { useValues } from './use-values';
+import { useWatchFormChange } from './use-watch-change';
+
+const MessageForm = ({ node }: INextOperatorForm) => {
+  const values = useValues(node);
+
+  const FormSchema = z.object({
+    query: z.string(),
+  });
+
+  const form = useForm({
+    defaultValues: values,
+    resolver: zodResolver(FormSchema),
+  });
+
+  useWatchFormChange(node?.id, form);
+
+  return (
+    <Form {...form}>
+      <form
+        className="space-y-5 px-5 "
+        autoComplete="off"
+        onSubmit={(e) => {
+          e.preventDefault();
+        }}
+      >
+        <FormContainer>
+          <FormField
+            control={form.control}
+            name="query"
+            render={({ field }) => (
+              <FormItem>
+                <FormLabel>Username</FormLabel>
+                <FormControl>
+                  <RAGFlowSelect placeholder="shadcn" {...field} options={[]} />
+                </FormControl>
+                <FormMessage />
+              </FormItem>
+            )}
+          />
+        </FormContainer>
+      </form>
+    </Form>
+  );
+};
+
+export default MessageForm;

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

@@ -0,0 +1,23 @@
+import { RAGFlowNodeType } from '@/interfaces/database/flow';
+import { isEmpty } from 'lodash';
+import { useMemo } from 'react';
+
+const defaultValues = {
+  content: [],
+};
+
+export function useValues(node?: RAGFlowNodeType) {
+  const values = useMemo(() => {
+    const formData = node?.data?.form;
+
+    if (isEmpty(formData)) {
+      return defaultValues;
+    }
+
+    return {
+      ...formData,
+    };
+  }, [node]);
+
+  return values;
+}

web/src/pages/agent/form/tavily-form/use-watch-change.ts

@@ -0,0 +1,22 @@
+import { useEffect } from 'react';
+import { UseFormReturn, useWatch } from 'react-hook-form';
+import useGraphStore from '../../store';
+
+export function useWatchFormChange(id?: string, form?: UseFormReturn) {
+  let values = useWatch({ control: form?.control });
+  const updateNodeForm = useGraphStore((state) => state.updateNodeForm);
+
+  useEffect(() => {
+    // Manually triggered form updates are synchronized to the canvas
+    if (id && form?.formState.isDirty) {
+      values = form?.getValues();
+      let nextValues: any = values;
+
+      nextValues = {
+        ...values,
+      };
+
+      updateNodeForm(id, nextValues);
+    }
+  }, [form?.formState.isDirty, id, updateNodeForm, values]);
+}

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

@@ -0,0 +1,7 @@
+import { INextOperatorForm } from '../../interface';
+
+const ToolForm = ({ node }: INextOperatorForm) => {
+  return <section>xxx</section>;
+};
+
+export default ToolForm;