feat: support dialogue count in chatflow (#7440)

web/app/components/workflow/nodes/_base/components/option-card.tsx

 import React, { useCallback } from 'react'
 import type { VariantProps } from 'class-variance-authority'
 import { cva } from 'class-variance-authority'
+import { RiQuestionLine } from '@remixicon/react'
 import cn from '@/utils/classnames'
+import TooltipPlus from '@/app/components/base/tooltip-plus'
 
 const variants = cva([], {
   variants: {
   selected: boolean
   disabled?: boolean
   align?: 'left' | 'center' | 'right'
+  tooltip?: string
 } & VariantProps<typeof variants>
 
 const OptionCard: FC<Props> = ({
   selected,
   disabled,
   align = 'center',
+  tooltip,
 }) => {
   const handleSelect = useCallback(() => {
     if (selected || disabled)
       )}
       onClick={handleSelect}
     >
-      {title}
+      <span>{title}</span>
+      {tooltip && <TooltipPlus
+        popupContent={<div className='w-[240px]'>
+          {tooltip}
+        </div>}
+      >
+        <RiQuestionLine className='ml-0.5 w-[14px] h-[14px] text-text-quaternary' />
+      </TooltipPlus>}
     </div>
   )
 }

web/app/components/workflow/nodes/_base/components/variable/utils.ts

           variable: 'sys.query',
           type: VarType.string,
         })
+        res.vars.push({
+          variable: 'sys.dialogue_count',
+          type: VarType.number,
+        })
         res.vars.push({
           variable: 'sys.conversation_id',
           type: VarType.string,

web/app/components/workflow/nodes/assigner/panel.tsx

         </Field>
         <Field
           title={t(`${i18nPrefix}.writeMode`)}
-          tooltip={t(`${i18nPrefix}.writeModeTip`)!}
         >
           <div className={cn('grid gap-2 grid-cols-3')}>
             {writeModeTypes.map(type => (
                 onSelect={handleWriteModeChange(type)}
                 selected={inputs.write_mode === type}
                 disabled={!isSupportAppend && type === WriteMode.Append}
+                tooltip={type === WriteMode.Append ? t(`${i18nPrefix}.writeModeTip`)! : undefined}
               />
             ))}
           </div>

web/app/components/workflow/nodes/start/panel.tsx

               />
               {
                 isChatMode && (
-                  <VarItem
-                    readonly
-                    payload={{
-                      variable: 'sys.conversation_id',
-                    } as any}
-                    rightContent={
-                      <div className='text-xs font-normal text-gray-500'>
-                        String
-                      </div>
-                    }
-                  />
+                  <>
+                    <VarItem
+                      readonly
+                      payload={{
+                        variable: 'sys.dialogue_count',
+                      } as any}
+                      rightContent={
+                        <div className='text-xs font-normal text-gray-500'>
+                          Number
+                        </div>
+                      }
+                    />
+                    <VarItem
+                      readonly
+                      payload={{
+                        variable: 'sys.conversation_id',
+                      } as any}
+                      rightContent={
+                        <div className='text-xs font-normal text-gray-500'>
+                          String
+                        </div>
+                      }
+                    />
+                  </>
                 )
               }
               <VarItem

web/package.json

   },
   "resolutions": {
     "@types/react": "~18.2.0",
-    "@types/react-dom": "~18.2.0"
+    "@types/react-dom": "~18.2.0",
+    "string-width": "4.2.3"
   },
   "lint-staged": {
     "**/*.js?(x)": [

web/yarn.lock

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