feature: infinite scroll (#119)

Add infinite scroll support to app list and dataset list.

web/app/(commonLayout)/apps/Apps.tsx

@@ -1,23 +1,50 @@
 'use client'
 
-import { useEffect } from 'react'
+import { useEffect, useRef } from 'react'
+import useSWRInfinite from 'swr/infinite'
+import { debounce } from 'lodash-es'
 import AppCard from './AppCard'
 import NewAppCard from './NewAppCard'
-import { useAppContext } from '@/context/app-context'
+import { AppListResponse } from '@/models/app'
+import { fetchAppList } from '@/service/apps'
+import { useSelector } from '@/context/app-context'
+
+const getKey = (pageIndex: number, previousPageData: AppListResponse) => {
+  if (!pageIndex || previousPageData.has_more)
+    return { url: 'apps', params: { page: pageIndex + 1, limit: 30 } }
+  return null
+}
 
 const Apps = () => {
-  const { apps, mutateApps } = useAppContext()
+  const { data, isLoading, setSize, mutate } = useSWRInfinite(getKey, fetchAppList, { revalidateFirstPage: false })
+  const loadingStateRef = useRef(false)
+  const pageContainerRef = useSelector(state => state.pageContainerRef)
+  const anchorRef = useRef<HTMLAnchorElement>(null)
 
   useEffect(() => {
-    mutateApps()
+    loadingStateRef.current = isLoading
+  }, [isLoading])
+
+  useEffect(() => {
+    const onScroll = debounce(() => {
+      if (!loadingStateRef.current) {
+        const { scrollTop, clientHeight } = pageContainerRef.current!
+        const anchorOffset = anchorRef.current!.offsetTop
+        if (anchorOffset - scrollTop - clientHeight < 100) {
+          setSize(size => size + 1)
+        }
+      }
+    }, 50)
+
+    pageContainerRef.current?.addEventListener('scroll', onScroll)
+    return () => pageContainerRef.current?.removeEventListener('scroll', onScroll)
   }, [])
 
   return (
     <nav className='grid content-start grid-cols-1 gap-4 px-12 pt-8 sm:grid-cols-2 lg:grid-cols-4 grow shrink-0'>
-      {apps.map(app => (<AppCard key={app.id} app={app} />))}
-      <NewAppCard />
+      {data?.map(({ data: apps }) => apps.map(app => (<AppCard key={app.id} app={app} />)))}
+      <NewAppCard ref={anchorRef} onSuccess={mutate} />
     </nav>
-
   )
 }
 

web/app/(commonLayout)/apps/NewAppCard.tsx

@@ -1,16 +1,20 @@
 'use client'
 
-import { useState } from 'react'
+import { forwardRef, useState } from 'react'
 import classNames from 'classnames'
 import { useTranslation } from 'react-i18next'
 import style from '../list.module.css'
 import NewAppDialog from './NewAppDialog'
 
-const CreateAppCard = () => {
+export type CreateAppCardProps = {
+  onSuccess?: () => void
+}
+
+const CreateAppCard = forwardRef<HTMLAnchorElement, CreateAppCardProps>(({ onSuccess }, ref) => {
   const { t } = useTranslation()
   const [showNewAppDialog, setShowNewAppDialog] = useState(false)
   return (
-    <a className={classNames(style.listItem, style.newItemCard)} onClick={() => setShowNewAppDialog(true)}>
+    <a ref={ref} className={classNames(style.listItem, style.newItemCard)} onClick={() => setShowNewAppDialog(true)}>
       <div className={style.listItemTitle}>
         <span className={style.newItemIcon}>
           <span className={classNames(style.newItemIconImage, style.newItemIconAdd)} />
@@ -20,9 +24,9 @@ const CreateAppCard = () => {
         </div>
       </div>
       {/* <div className='text-xs text-gray-500'>{t('app.createFromConfigFile')}</div> */}
-      <NewAppDialog show={showNewAppDialog} onClose={() => setShowNewAppDialog(false)} />
+      <NewAppDialog show={showNewAppDialog} onSuccess={onSuccess} onClose={() => setShowNewAppDialog(false)} />
     </a>
   )
-}
+})
 
 export default CreateAppCard

web/app/(commonLayout)/apps/NewAppDialog.tsx

@@ -21,10 +21,11 @@ import EmojiPicker from '@/app/components/base/emoji-picker'
 
 type NewAppDialogProps = {
   show: boolean
+  onSuccess?: () => void
   onClose?: () => void
 }
 
-const NewAppDialog = ({ show, onClose }: NewAppDialogProps) => {
+const NewAppDialog = ({ show, onSuccess, onClose }: NewAppDialogProps) => {
   const router = useRouter()
   const { notify } = useContext(ToastContext)
   const { t } = useTranslation()
@@ -79,6 +80,8 @@ const NewAppDialog = ({ show, onClose }: NewAppDialogProps) => {
         mode: isWithTemplate ? templates.data[selectedTemplateIndex].mode : newAppMode!,
         config: isWithTemplate ? templates.data[selectedTemplateIndex].model_config : undefined,
       })
+      if (onSuccess)
+        onSuccess()
       if (onClose)
         onClose()
       notify({ type: 'success', message: t('app.newApp.appCreated') })