feat: infinite choose var

web/app/components/workflow/nodes/_base/components/variable/var-reference-picker.tsx

@@ -85,7 +85,7 @@ const VarReferencePicker: FC<Props> = ({
         </PortalToFollowElemTrigger>
         <PortalToFollowElemContent style={{
           zIndex: 100,
-          width: 227,
+          minWidth: 227,
         }}>
           <VarReferencePopup vars={mockNodeOutputVars} />
         </PortalToFollowElemContent>

web/app/components/workflow/nodes/_base/components/variable/var-reference-popup.tsx

 'use client'
 import type { FC } from 'react'
-import React from 'react'
-import type { NodeOutPutVar } from '@/app/components/workflow/types'
+import React, { useRef } from 'react'
+import { useHover } from 'ahooks'
+import type { NodeOutPutVar, Var } from '@/app/components/workflow/types'
 import { Variable02 } from '@/app/components/base/icons/src/vender/solid/development'
 
+type ObjectChildrenProps = {
+  title: string
+  data: Var[]
+  objPath: string[]
+}
+
+type ItemProps = {
+  title: string
+  objPath: string[]
+  itemData: Var
+}
+
+const Item: FC<ItemProps> = ({
+  title,
+  objPath,
+  itemData,
+}) => {
+  const isObj = itemData.type === 'object'
+  const itemRef = useRef(null)
+  const isItemHovering = useHover(itemRef)
+
+  return (
+    <div ref={itemRef} className='relative flex items-center h-6 w-[252px] pl-3 pr-[18px] rounded-md cursor-pointer hover:bg-gray-50'>
+      <div className='flex items-center w-0 grow'>
+        <Variable02 className='shrink-0 w-3.5 h-3.5 text-primary-500' />
+        <div className='ml-1 w-0 grow text-ellipsis text-[13px] font-normal text-gray-900'>{itemData.variable}</div>
+      </div>
+      <div className='ml-1 shrink-0 text-xs font-normal text-gray-500'>{itemData.type}</div>
+      {isObj && isItemHovering && (
+        // eslint-disable-next-line @typescript-eslint/no-use-before-define
+        <ObjectChildren
+          title={title}
+          objPath={[...objPath, itemData.variable]}
+          data={itemData.children as Var[]}
+        />
+      )}
+    </div>
+  )
+}
+
+const ObjectChildren: FC<ObjectChildrenProps> = ({
+  title,
+  objPath,
+  data,
+}) => {
+  const currObjPath = objPath
+
+  return (
+    <div className='absolute right-[248px] top-[-2px] bg-white rounded-lg border border-gray-200 shadow-lg space-y-1'>
+      <div className='flex items-center h-[22px] px-3 text-xs font-normal text-gray-700'><span className='text-gray-500'>{title}.</span>{currObjPath.join('.')}</div>
+      {
+        data.map((v, i) => (
+          <Item
+            key={i}
+            title={title}
+            objPath={objPath}
+            itemData={v}
+          />
+        ))
+      }
+    </div>
+  )
+}
+
 type Props = {
   vars: NodeOutPutVar[]
 }
-
 const VarReferencePopup: FC<Props> = ({
   vars,
 }) => {
@@ -17,13 +81,12 @@ const VarReferencePopup: FC<Props> = ({
         <div key={i}>
           <div className='flex items-center h-[22px] px-3 text-xs font-medium text-gray-500 uppercase'>{item.title}</div>
           {item.vars.map((v, j) => (
-            <div key={j} className='flex items-center h-6 pl-3 pr-[18px] rounded-md cursor-pointer hover:bg-gray-50'>
-              <div className='flex items-center w-0 grow'>
-                <Variable02 className='shrink-0 w-3.5 h-3.5 text-primary-500' />
-                <div className='ml-1 w-0 grow text-ellipsis text-[13px] font-normal text-gray-900'>{v.variable}</div>
-              </div>
-              <div className='ml-1 shrink-0 text-xs font-normal text-gray-500'>{v.type}</div>
-            </div>
+            <Item
+              key={j}
+              title={item.title}
+              objPath={[]}
+              itemData={v}
+            />
           ))}
         </div>
       ))}

web/app/components/workflow/nodes/mock.ts

@@ -36,7 +36,44 @@ export const mockNodeOutputVars: NodeOutPutVar[] = [
       {
         variable: 'usage',
         type: 'object',
-        struct: ['token', 'value'],
+        children: [
+          {
+            variable: 'token',
+            type: 'object',
+            children: [
+              {
+                variable: 'num',
+                type: 'number',
+              },
+              {
+                variable: 'price',
+                type: 'number',
+              },
+            ],
+          },
+        ],
+      },
+      {
+        variable: 'other',
+        type: 'object',
+        children: [
+          {
+            variable: 'a',
+            type: 'object',
+            children: [
+              {
+                variable: 'b',
+                type: 'object',
+                children: [
+                  {
+                    variable: 'c',
+                    type: 'string',
+                  },
+                ],
+              },
+            ],
+          },
+        ],
       },
     ],
   },

web/app/components/workflow/types.ts

@@ -83,13 +83,15 @@ export type LLMNodeData = {
   }
 }
 
+export type Var = {
+  variable: string
+  type: string
+  children?: Var[] // if type is obj, has the children struct
+}
+
 export type NodeOutPutVar = {
   title: string
-  vars: {
-    variable: string
-    type: string
-    struct?: string[]
-  }[]
+  vars: Var[]
 }
 
 export type Block = {