Merge branch 'improve-property-tooltip' into loginPage

2025-03-15 00:11:50 +08:00
parent 10c23aabfd 063ad8a35a
commit b58729751a
57 changed files with 1822 additions and 606 deletions
--- a/lightrag_webui/bun.lock
+++ b/lightrag_webui/bun.lock
@@ -63,6 +63,7 @@
        "@types/node": "^22.13.5",
        "@types/react": "^19.0.10",
        "@types/react-dom": "^19.0.4",
+        "@types/react-i18next": "^8.1.0",
        "@types/react-syntax-highlighter": "^15.5.13",
        "@types/seedrandom": "^3.0.8",
        "@vitejs/plugin-react-swc": "^3.8.0",
@@ -446,6 +447,8 @@

    "@types/react-dom": ["@types/react-dom@19.0.4", "", { "peerDependencies": { "@types/react": "^19.0.0" } }, "sha512-4fSQ8vWFkg+TGhePfUzVmat3eC14TXYSsiiDSLI0dVLsrm9gZFABjPy/Qu6TKgl1tq1Bu1yDsuQgY3A3DOjCcg=="],

+    "@types/react-i18next": ["@types/react-i18next@8.1.0", "", { "dependencies": { "react-i18next": "*" } }, "sha512-d4xhcjX5b3roNMObRNMfb1HinHQlQLPo8xlDj60dnHeeAw2bBymR2cy/l1giJpHzo/ZFgSvgVUvIWr4kCrenCg=="],
+
    "@types/react-syntax-highlighter": ["@types/react-syntax-highlighter@15.5.13", "", { "dependencies": { "@types/react": "*" } }, "sha512-uLGJ87j6Sz8UaBAooU0T6lWJ0dBmjZgN1PZTrj05TNql2/XpC6+4HhMT5syIdFUUt+FASfCeLLv4kBygNU+8qA=="],

    "@types/react-transition-group": ["@types/react-transition-group@4.4.12", "", { "peerDependencies": { "@types/react": "*" } }, "sha512-8TV6R3h2j7a91c+1DXdJi3Syo69zzIZbz7Lg5tORM5LEJG7X/E6a1V3drRyBRZq7/utz7A+c4OgYLiLcYGHG6w=="],
--- a/lightrag_webui/index.html
+++ b/lightrag_webui/index.html
@@ -2,6 +2,9 @@
 <html lang="en">
  <head>
    <meta charset="UTF-8" />
+    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
+    <meta http-equiv="Pragma" content="no-cache" />
+    <meta http-equiv="Expires" content="0" />
    <link rel="icon" type="image/svg+xml" href="logo.png" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Lightrag</title>
--- a/lightrag_webui/package.json
+++ b/lightrag_webui/package.json
@@ -72,6 +72,7 @@
    "@types/node": "^22.13.5",
    "@types/react": "^19.0.10",
    "@types/react-dom": "^19.0.4",
+    "@types/react-i18next": "^8.1.0",
    "@types/react-syntax-highlighter": "^15.5.13",
    "@types/seedrandom": "^3.0.8",
    "@vitejs/plugin-react-swc": "^3.8.0",
--- a/lightrag_webui/src/App.tsx
+++ b/lightrag_webui/src/App.tsx
@@ -1,4 +1,6 @@
 import { useState, useCallback } from 'react'
+import ThemeProvider from '@/components/ThemeProvider'
+import TabVisibilityProvider from '@/contexts/TabVisibilityProvider'
 import MessageAlert from '@/components/MessageAlert'
 import ApiKeyAlert from '@/components/ApiKeyAlert'
 import StatusIndicator from '@/components/graph/StatusIndicator'
@@ -19,7 +21,7 @@ import { Tabs, TabsContent } from '@/components/ui/Tabs'
 function App() {
  const message = useBackendState.use.message()
  const enableHealthCheck = useSettingsStore.use.enableHealthCheck()
-  const [currentTab] = useState(() => useSettingsStore.getState().currentTab)
+  const currentTab = useSettingsStore.use.currentTab()
  const [apiKeyInvalid, setApiKeyInvalid] = useState(false)

  // Health check
@@ -51,32 +53,36 @@ function App() {
  }, [message, setApiKeyInvalid])

  return (
-      <main className="flex h-screen w-screen overflow-x-hidden">
-        <Tabs
-          defaultValue={currentTab}
-          className="!m-0 flex grow flex-col !p-0"
-          onValueChange={handleTabChange}
-        >
-          <SiteHeader />
-          <div className="relative grow">
-            <TabsContent value="documents" className="absolute top-0 right-0 bottom-0 left-0">
-              <DocumentManager />
-            </TabsContent>
-            <TabsContent value="knowledge-graph" className="absolute top-0 right-0 bottom-0 left-0">
-              <GraphViewer />
-            </TabsContent>
-            <TabsContent value="retrieval" className="absolute top-0 right-0 bottom-0 left-0">
-              <RetrievalTesting />
-            </TabsContent>
-            <TabsContent value="api" className="absolute top-0 right-0 bottom-0 left-0">
-              <ApiSite />
-            </TabsContent>
-          </div>
-        </Tabs>
-        {enableHealthCheck && <StatusIndicator />}
-        {message !== null && !apiKeyInvalid && <MessageAlert />}
-        {apiKeyInvalid && <ApiKeyAlert />}
-      </main>
+    <ThemeProvider>
+      <TabVisibilityProvider>
+        <main className="flex h-screen w-screen overflow-x-hidden">
+          <Tabs
+            defaultValue={currentTab}
+            className="!m-0 flex grow flex-col !p-0"
+            onValueChange={handleTabChange}
+          >
+            <SiteHeader />
+            <div className="relative grow">
+              <TabsContent value="documents" className="absolute top-0 right-0 bottom-0 left-0">
+                <DocumentManager />
+              </TabsContent>
+              <TabsContent value="knowledge-graph" className="absolute top-0 right-0 bottom-0 left-0">
+                <GraphViewer />
+              </TabsContent>
+              <TabsContent value="retrieval" className="absolute top-0 right-0 bottom-0 left-0">
+                <RetrievalTesting />
+              </TabsContent>
+              <TabsContent value="api" className="absolute top-0 right-0 bottom-0 left-0">
+                <ApiSite />
+              </TabsContent>
+            </div>
+          </Tabs>
+          {enableHealthCheck && <StatusIndicator />}
+          {message !== null && !apiKeyInvalid && <MessageAlert />}
+          {apiKeyInvalid && <ApiKeyAlert />}
+        </main>
+      </TabVisibilityProvider>
+    </ThemeProvider>
  )
 }

--- a/lightrag_webui/src/components/AppSettings.tsx
+++ b/lightrag_webui/src/components/AppSettings.tsx
@@ -0,0 +1,66 @@
+import { useState, useCallback } from 'react'
+import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/Popover'
+import Button from '@/components/ui/Button'
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/Select'
+import { useSettingsStore } from '@/stores/settings'
+import { PaletteIcon } from 'lucide-react'
+import { useTranslation } from 'react-i18next'
+
+export default function AppSettings() {
+  const [opened, setOpened] = useState<boolean>(false)
+  const { t } = useTranslation()
+
+  const language = useSettingsStore.use.language()
+  const setLanguage = useSettingsStore.use.setLanguage()
+
+  const theme = useSettingsStore.use.theme()
+  const setTheme = useSettingsStore.use.setTheme()
+
+  const handleLanguageChange = useCallback((value: string) => {
+    setLanguage(value as 'en' | 'zh')
+  }, [setLanguage])
+
+  const handleThemeChange = useCallback((value: string) => {
+    setTheme(value as 'light' | 'dark' | 'system')
+  }, [setTheme])
+
+  return (
+    <Popover open={opened} onOpenChange={setOpened}>
+      <PopoverTrigger asChild>
+        <Button variant="outline" size="icon" className="h-9 w-9">
+          <PaletteIcon className="h-5 w-5" />
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent side="bottom" align="end" className="w-56">
+        <div className="flex flex-col gap-4">
+          <div className="flex flex-col gap-2">
+            <label className="text-sm font-medium">{t('settings.language')}</label>
+            <Select value={language} onValueChange={handleLanguageChange}>
+              <SelectTrigger>
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="en">English</SelectItem>
+                <SelectItem value="zh">中文</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+
+          <div className="flex flex-col gap-2">
+            <label className="text-sm font-medium">{t('settings.theme')}</label>
+            <Select value={theme} onValueChange={handleThemeChange}>
+              <SelectTrigger>
+                <SelectValue />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="light">{t('settings.light')}</SelectItem>
+                <SelectItem value="dark">{t('settings.dark')}</SelectItem>
+                <SelectItem value="system">{t('settings.system')}</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+        </div>
+      </PopoverContent>
+    </Popover>
+  )
+}
--- a/lightrag_webui/src/components/Root.tsx
+++ b/lightrag_webui/src/components/Root.tsx
@@ -0,0 +1,24 @@
+import { StrictMode, useEffect, useState } from 'react'
+import { initializeI18n } from '@/i18n'
+import App from '@/App'
+
+export const Root = () => {
+  const [isI18nInitialized, setIsI18nInitialized] = useState(false)
+
+  useEffect(() => {
+    // Initialize i18n immediately with persisted language
+    initializeI18n().then(() => {
+      setIsI18nInitialized(true)
+    })
+  }, [])
+
+  if (!isI18nInitialized) {
+    return null // or a loading spinner
+  }
+
+  return (
+    <StrictMode>
+      <App />
+    </StrictMode>
+  )
+}
--- a/lightrag_webui/src/components/ThemeProvider.tsx
+++ b/lightrag_webui/src/components/ThemeProvider.tsx
@@ -1,4 +1,4 @@
-import { createContext, useEffect, useState } from 'react'
+import { createContext, useEffect } from 'react'
 import { Theme, useSettingsStore } from '@/stores/settings'

 type ThemeProviderProps = {
@@ -21,30 +21,32 @@ const ThemeProviderContext = createContext<ThemeProviderState>(initialState)
 * Component that provides the theme state and setter function to its children.
 */
 export default function ThemeProvider({ children, ...props }: ThemeProviderProps) {
-  const [theme, setTheme] = useState<Theme>(useSettingsStore.getState().theme)
+  const theme = useSettingsStore.use.theme()
+  const setTheme = useSettingsStore.use.setTheme()

  useEffect(() => {
    const root = window.document.documentElement
    root.classList.remove('light', 'dark')

    if (theme === 'system') {
-      const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches
-        ? 'dark'
-        : 'light'
-      root.classList.add(systemTheme)
-      setTheme(systemTheme)
-      return
-    }
+      const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)')
+      const handleChange = (e: MediaQueryListEvent) => {
+        root.classList.remove('light', 'dark')
+        root.classList.add(e.matches ? 'dark' : 'light')
+      }

-    root.classList.add(theme)
+      root.classList.add(mediaQuery.matches ? 'dark' : 'light')
+      mediaQuery.addEventListener('change', handleChange)
+
+      return () => mediaQuery.removeEventListener('change', handleChange)
+    } else {
+      root.classList.add(theme)
+    }
  }, [theme])

  const value = {
    theme,
-    setTheme: (theme: Theme) => {
-      useSettingsStore.getState().setTheme(theme)
-      setTheme(theme)
-    }
+    setTheme
  }

  return (
--- a/lightrag_webui/src/components/graph/FocusOnNode.tsx
+++ b/lightrag_webui/src/components/graph/FocusOnNode.tsx
@@ -13,15 +13,24 @@ const FocusOnNode = ({ node, move }: { node: string | null; move?: boolean }) =>
   * When the selected item changes, highlighted the node and center the camera on it.
   */
  useEffect(() => {
-    if (!node) return
-    sigma.getGraph().setNodeAttribute(node, 'highlighted', true)
    if (move) {
-      gotoNode(node)
+      if (node) {
+        sigma.getGraph().setNodeAttribute(node, 'highlighted', true)
+        gotoNode(node)
+      } else {
+        // If no node is selected but move is true, reset to default view
+        sigma.setCustomBBox(null)
+        sigma.getCamera().animate({ x: 0.5, y: 0.5, ratio: 1 }, { duration: 0 })
+      }
      useGraphStore.getState().setMoveToSelectedNode(false)
+    } else if (node) {
+      sigma.getGraph().setNodeAttribute(node, 'highlighted', true)
    }

    return () => {
-      sigma.getGraph().setNodeAttribute(node, 'highlighted', false)
+      if (node) {
+        sigma.getGraph().setNodeAttribute(node, 'highlighted', false)
+      }
    }
  }, [node, move, sigma, gotoNode])

--- a/lightrag_webui/src/components/graph/GraphControl.tsx
+++ b/lightrag_webui/src/components/graph/GraphControl.tsx
@@ -1,10 +1,11 @@
 import { useLoadGraph, useRegisterEvents, useSetSettings, useSigma } from '@react-sigma/core'
+import Graph from 'graphology'
 // import { useLayoutCircular } from '@react-sigma/layout-circular'
 import { useLayoutForceAtlas2 } from '@react-sigma/layout-forceatlas2'
 import { useEffect } from 'react'

 // import useRandomGraph, { EdgeType, NodeType } from '@/hooks/useRandomGraph'
-import useLightragGraph, { EdgeType, NodeType } from '@/hooks/useLightragGraph'
+import { EdgeType, NodeType } from '@/hooks/useLightragGraph'
 import useTheme from '@/hooks/useTheme'
 import * as Constants from '@/lib/constants'

@@ -21,7 +22,6 @@ const isButtonPressed = (ev: MouseEvent | TouchEvent) => {
 }

 const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean }) => {
-  const { lightrageGraph } = useLightragGraph()
  const sigma = useSigma<NodeType, EdgeType>()
  const registerEvents = useRegisterEvents<NodeType, EdgeType>()
  const setSettings = useSetSettings<NodeType, EdgeType>()
@@ -34,21 +34,25 @@ const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean })

  const { theme } = useTheme()
  const hideUnselectedEdges = useSettingsStore.use.enableHideUnselectedEdges()
+  const enableEdgeEvents = useSettingsStore.use.enableEdgeEvents()
+  const renderEdgeLabels = useSettingsStore.use.showEdgeLabel()
+  const renderLabels = useSettingsStore.use.showNodeLabel()
  const selectedNode = useGraphStore.use.selectedNode()
  const focusedNode = useGraphStore.use.focusedNode()
  const selectedEdge = useGraphStore.use.selectedEdge()
  const focusedEdge = useGraphStore.use.focusedEdge()
+  const sigmaGraph = useGraphStore.use.sigmaGraph()

  /**
   * When component mount or maxIterations changes
   * => load the graph and apply layout
   */
  useEffect(() => {
-    // Create & load the graph
-    const graph = lightrageGraph()
-    loadGraph(graph)
-    assignLayout()
-  }, [assignLayout, loadGraph, lightrageGraph, maxIterations])
+    if (sigmaGraph) {
+      loadGraph(sigmaGraph as unknown as Graph<NodeType, EdgeType>)
+      assignLayout()
+    }
+  }, [assignLayout, loadGraph, sigmaGraph, maxIterations])

  /**
   * When component mount
@@ -58,39 +62,52 @@ const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean })
    const { setFocusedNode, setSelectedNode, setFocusedEdge, setSelectedEdge, clearSelection } =
      useGraphStore.getState()

-    // Register the events
-    registerEvents({
-      enterNode: (event) => {
+    // Define event types
+    type NodeEvent = { node: string; event: { original: MouseEvent | TouchEvent } }
+    type EdgeEvent = { edge: string; event: { original: MouseEvent | TouchEvent } }
+
+    // Register all events, but edge events will only be processed if enableEdgeEvents is true
+    const events: Record<string, any> = {
+      enterNode: (event: NodeEvent) => {
        if (!isButtonPressed(event.event.original)) {
          setFocusedNode(event.node)
        }
      },
-      leaveNode: (event) => {
+      leaveNode: (event: NodeEvent) => {
        if (!isButtonPressed(event.event.original)) {
          setFocusedNode(null)
        }
      },
-      clickNode: (event) => {
+      clickNode: (event: NodeEvent) => {
        setSelectedNode(event.node)
        setSelectedEdge(null)
      },
-      clickEdge: (event) => {
+      clickStage: () => clearSelection()
+    }
+
+    // Only add edge event handlers if enableEdgeEvents is true
+    if (enableEdgeEvents) {
+      events.clickEdge = (event: EdgeEvent) => {
        setSelectedEdge(event.edge)
        setSelectedNode(null)
-      },
-      enterEdge: (event) => {
+      }
+
+      events.enterEdge = (event: EdgeEvent) => {
        if (!isButtonPressed(event.event.original)) {
          setFocusedEdge(event.edge)
        }
-      },
-      leaveEdge: (event) => {
+      }
+
+      events.leaveEdge = (event: EdgeEvent) => {
        if (!isButtonPressed(event.event.original)) {
          setFocusedEdge(null)
        }
-      },
-      clickStage: () => clearSelection()
-    })
-  }, [registerEvents])
+      }
+    }
+
+    // Register the events
+    registerEvents(events)
+  }, [registerEvents, enableEdgeEvents])

  /**
   * When component mount or hovered node change
@@ -101,7 +118,14 @@ const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean })
    const labelColor = isDarkTheme ? Constants.labelColorDarkTheme : undefined
    const edgeColor = isDarkTheme ? Constants.edgeColorDarkTheme : undefined

+    // Update all dynamic settings directly without recreating the sigma container
    setSettings({
+      // Update display settings
+      enableEdgeEvents,
+      renderEdgeLabels,
+      renderLabels,
+
+      // Node reducer for node appearance
      nodeReducer: (node, data) => {
        const graph = sigma.getGraph()
        const newData: NodeType & {
@@ -140,6 +164,8 @@ const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean })
        }
        return newData
      },
+
+      // Edge reducer for edge appearance
      edgeReducer: (edge, data) => {
        const graph = sigma.getGraph()
        const newData = { ...data, hidden: false, labelColor, color: edgeColor }
@@ -181,7 +207,10 @@ const GraphControl = ({ disableHoverEffect }: { disableHoverEffect?: boolean })
    sigma,
    disableHoverEffect,
    theme,
-    hideUnselectedEdges
+    hideUnselectedEdges,
+    enableEdgeEvents,
+    renderEdgeLabels,
+    renderLabels
  ])

  return null
--- a/lightrag_webui/src/components/graph/GraphLabels.tsx
+++ b/lightrag_webui/src/components/graph/GraphLabels.tsx
@@ -1,37 +1,48 @@
-import { useCallback } from 'react'
+import { useCallback, useEffect, useRef } from 'react'
 import { AsyncSelect } from '@/components/ui/AsyncSelect'
-import { getGraphLabels } from '@/api/lightrag'
 import { useSettingsStore } from '@/stores/settings'
 import { useGraphStore } from '@/stores/graph'
 import { labelListLimit } from '@/lib/constants'
 import MiniSearch from 'minisearch'
 import { useTranslation } from 'react-i18next'

-const lastGraph: any = {
-  graph: null,
-  searchEngine: null,
-  labels: []
-}
-
 const GraphLabels = () => {
  const { t } = useTranslation()
  const label = useSettingsStore.use.queryLabel()
-  const graph = useGraphStore.use.sigmaGraph()
+  const allDatabaseLabels = useGraphStore.use.allDatabaseLabels()
+  const labelsLoadedRef = useRef(false)

-  const getSearchEngine = useCallback(async () => {
-    if (lastGraph.graph == graph) {
-      return {
-        labels: lastGraph.labels,
-        searchEngine: lastGraph.searchEngine
-      }
-    }
-    const labels = ['*'].concat(await getGraphLabels())
-
-    // Ensure query label exists
-    if (!labels.includes(useSettingsStore.getState().queryLabel)) {
-      useSettingsStore.getState().setQueryLabel(labels[0])
+  // Track if a fetch is in progress to prevent multiple simultaneous fetches
+  const fetchInProgressRef = useRef(false)
+
+  // Fetch labels once on component mount, using global flag to prevent duplicates
+  useEffect(() => {
+    // Check if we've already attempted to fetch labels in this session
+    const labelsFetchAttempted = useGraphStore.getState().labelsFetchAttempted
+
+    // Only fetch if we haven't attempted in this session and no fetch is in progress
+    if (!labelsFetchAttempted && !fetchInProgressRef.current) {
+      fetchInProgressRef.current = true
+      // Set global flag to indicate we've attempted to fetch in this session
+      useGraphStore.getState().setLabelsFetchAttempted(true)
+
+      console.log('Fetching graph labels (once per session)...')
+
+      useGraphStore.getState().fetchAllDatabaseLabels()
+        .then(() => {
+          labelsLoadedRef.current = true
+          fetchInProgressRef.current = false
+        })
+        .catch((error) => {
+          console.error('Failed to fetch labels:', error)
+          fetchInProgressRef.current = false
+          // Reset global flag to allow retry
+          useGraphStore.getState().setLabelsFetchAttempted(false)
+        })
    }
+  }, []) // Empty dependency array ensures this only runs once on mount

+  const getSearchEngine = useCallback(() => {
    // Create search engine
    const searchEngine = new MiniSearch({
      idField: 'id',
@@ -46,41 +57,32 @@ const GraphLabels = () => {
    })

    // Add documents
-    const documents = labels.map((str, index) => ({ id: index, value: str }))
+    const documents = allDatabaseLabels.map((str, index) => ({ id: index, value: str }))
    searchEngine.addAll(documents)

-    lastGraph.graph = graph
-    lastGraph.searchEngine = searchEngine
-    lastGraph.labels = labels
-
    return {
-      labels,
+      labels: allDatabaseLabels,
      searchEngine
    }
-  }, [graph])
+  }, [allDatabaseLabels])

  const fetchData = useCallback(
    async (query?: string): Promise<string[]> => {
-      const { labels, searchEngine } = await getSearchEngine()
+      const { labels, searchEngine } = getSearchEngine()

      let result: string[] = labels
      if (query) {
        // Search labels
-        result = searchEngine.search(query).map((r) => labels[r.id])
+        result = searchEngine.search(query).map((r: { id: number }) => labels[r.id])
      }

      return result.length <= labelListLimit
        ? result
-        : [...result.slice(0, labelListLimit), t('graphLabels.andOthers', { count: result.length - labelListLimit })]
+        : [...result.slice(0, labelListLimit), '...']
    },
    [getSearchEngine]
  )

-  const setQueryLabel = useCallback((label: string) => {
-    if (label.startsWith('And ') && label.endsWith(' others')) return
-    useSettingsStore.getState().setQueryLabel(label)
-  }, [])
-
  return (
    <AsyncSelect<string>
      className="ml-2"
@@ -94,8 +96,38 @@ const GraphLabels = () => {
      notFound={<div className="py-6 text-center text-sm">No labels found</div>}
      label={t('graphPanel.graphLabels.label')}
      placeholder={t('graphPanel.graphLabels.placeholder')}
-      value={label !== null ? label : ''}
-      onChange={setQueryLabel}
+      value={label !== null ? label : '*'}
+      onChange={(newLabel) => {
+        const currentLabel = useSettingsStore.getState().queryLabel
+
+        // select the last item means query all
+        if (newLabel === '...') {
+          newLabel = '*'
+        }
+
+        // Reset the fetch attempted flag to force a new data fetch
+        useGraphStore.getState().setGraphDataFetchAttempted(false)
+
+        // Clear current graph data to ensure complete reload when label changes
+        if (newLabel !== currentLabel) {
+          const graphStore = useGraphStore.getState();
+          graphStore.clearSelection();
+
+          // Reset the graph state but preserve the instance
+          if (graphStore.sigmaGraph) {
+            const nodes = Array.from(graphStore.sigmaGraph.nodes());
+            nodes.forEach(node => graphStore.sigmaGraph?.dropNode(node));
+          }
+        }
+
+        if (newLabel === currentLabel && newLabel !== '*') {
+          // reselect the same itme means qery all
+          useSettingsStore.getState().setQueryLabel('*')
+        } else {
+          useSettingsStore.getState().setQueryLabel(newLabel)
+        }
+      }}
+      clearable={false}  // Prevent clearing value on reselect
    />
  )
 }
--- a/lightrag_webui/src/components/graph/GraphSearch.tsx
+++ b/lightrag_webui/src/components/graph/GraphSearch.tsx
@@ -1,4 +1,4 @@
-import { FC, useCallback, useMemo } from 'react'
+import { FC, useCallback, useEffect, useMemo } from 'react'
 import {
  EdgeById,
  NodeById,
@@ -28,6 +28,7 @@ function OptionComponent(item: OptionItem) {
 }

 const messageId = '__message_item'
+// Reset this cache when graph changes to ensure fresh search results
 const lastGraph: any = {
  graph: null,
  searchEngine: null
@@ -48,6 +49,15 @@ export const GraphSearchInput = ({
  const { t } = useTranslation()
  const graph = useGraphStore.use.sigmaGraph()

+  // Force reset the cache when graph changes
+  useEffect(() => {
+    if (graph) {
+      // Reset cache to ensure fresh search results with new graph data
+      lastGraph.graph = null;
+      lastGraph.searchEngine = null;
+    }
+  }, [graph]);
+
  const searchEngine = useMemo(() => {
    if (lastGraph.graph == graph) {
      return lastGraph.searchEngine
@@ -85,8 +95,19 @@ export const GraphSearchInput = ({
  const loadOptions = useCallback(
    async (query?: string): Promise<OptionItem[]> => {
      if (onFocus) onFocus(null)
-      if (!query || !searchEngine) return []
-      const result: OptionItem[] = searchEngine.search(query).map((r) => ({
+      if (!graph || !searchEngine) return []
+
+      // If no query, return first searchResultLimit nodes
+      if (!query) {
+        const nodeIds = graph.nodes().slice(0, searchResultLimit)
+        return nodeIds.map(id => ({
+          id,
+          type: 'nodes'
+        }))
+      }
+
+      // If has query, search nodes
+      const result: OptionItem[] = searchEngine.search(query).map((r: { id: string }) => ({
        id: r.id,
        type: 'nodes'
      }))
@@ -103,7 +124,7 @@ export const GraphSearchInput = ({
          }
        ]
    },
-    [searchEngine, onFocus]
+    [graph, searchEngine, onFocus, t]
  )

  return (
--- a/lightrag_webui/src/components/graph/PropertiesView.tsx
+++ b/lightrag_webui/src/components/graph/PropertiesView.tsx
@@ -96,9 +96,9 @@ const refineNodeProperties = (node: RawNodeType): NodeType => {
        const neighbour = state.rawGraph.getNode(neighbourId)
        if (neighbour) {
          relationships.push({
-            type: isTarget ? 'Target' : 'Source',
+            type: 'Neighbour',
            id: neighbourId,
-            label: neighbour.labels.join(', ')
+            label: neighbour.properties['entity_id'] ? neighbour.properties['entity_id'] : neighbour.labels.join(', ')
          })
        }
      }
@@ -132,14 +132,22 @@ const PropertyRow = ({
  onClick?: () => void
  tooltip?: string
 }) => {
+  const { t } = useTranslation()
+
+  const getPropertyNameTranslation = (name: string) => {
+    const translationKey = `graphPanel.propertiesView.node.propertyNames.${name}`
+    const translation = t(translationKey)
+    return translation === translationKey ? name : translation
+  }
+
  return (
    <div className="flex items-center gap-2">
-      <label className="text-primary/60 tracking-wide">{name}</label>:
+      <label className="text-primary/60 tracking-wide whitespace-nowrap">{getPropertyNameTranslation(name)}</label>:
      <Text
-        className="hover:bg-primary/20 rounded p-1 text-ellipsis"
+        className="hover:bg-primary/20 rounded p-1 overflow-hidden text-ellipsis"
        tooltipClassName="max-w-80"
        text={value}
-        tooltip={tooltip || value}
+        tooltip={tooltip || (typeof value === 'string' ? value : JSON.stringify(value, null, 2))}
        side="left"
        onClick={onClick}
      />
@@ -174,7 +182,7 @@ const NodePropertiesView = ({ node }: { node: NodeType }) => {
      {node.relationships.length > 0 && (
        <>
          <label className="text-md pl-1 font-bold tracking-wide text-teal-600/90">
-          {t('graphPanel.propertiesView.node.relationships')}
+            {t('graphPanel.propertiesView.node.relationships')}
          </label>
          <div className="bg-primary/5 max-h-96 overflow-auto rounded p-1">
            {node.relationships.map(({ type, id, label }) => {
--- a/lightrag_webui/src/components/graph/Settings.tsx
+++ b/lightrag_webui/src/components/graph/Settings.tsx
@@ -8,9 +8,10 @@ import Input from '@/components/ui/Input'
 import { controlButtonVariant } from '@/lib/constants'
 import { useSettingsStore } from '@/stores/settings'
 import { useBackendState } from '@/stores/state'
+import { useGraphStore } from '@/stores/graph'

-import { SettingsIcon } from 'lucide-react'
-import { useTranslation } from "react-i18next";
+import { SettingsIcon, RefreshCwIcon } from 'lucide-react'
+import { useTranslation } from 'react-i18next';

 /**
 * Component that displays a checkbox with a label.
@@ -114,6 +115,7 @@ const LabeledNumberInput = ({
 export default function Settings() {
  const [opened, setOpened] = useState<boolean>(false)
  const [tempApiKey, setTempApiKey] = useState<string>('')
+  const refreshLayout = useGraphStore.use.refreshLayout()

  const showPropertyPanel = useSettingsStore.use.showPropertyPanel()
  const showNodeSearchBar = useSettingsStore.use.showNodeSearchBar()
@@ -208,116 +210,126 @@ export default function Settings() {
  const { t } = useTranslation();

  return (
-    <Popover open={opened} onOpenChange={setOpened}>
-      <PopoverTrigger asChild>
-        <Button variant={controlButtonVariant} tooltip={t("graphPanel.sideBar.settings.settings")} size="icon">
-          <SettingsIcon />
-        </Button>
-      </PopoverTrigger>
-      <PopoverContent
-        side="right"
-        align="start"
-        className="mb-2 p-2"
-        onCloseAutoFocus={(e) => e.preventDefault()}
+    <>
+      <Button
+        variant={controlButtonVariant}
+        tooltip={t('graphPanel.sideBar.settings.refreshLayout')}
+        size="icon"
+        onClick={refreshLayout}
      >
-        <div className="flex flex-col gap-2">
-          <LabeledCheckBox
-            checked={enableHealthCheck}
-            onCheckedChange={setEnableHealthCheck}
-            label={t("graphPanel.sideBar.settings.healthCheck")}
-          />
-
-          <Separator />
-
-          <LabeledCheckBox
-            checked={showPropertyPanel}
-            onCheckedChange={setShowPropertyPanel}
-            label={t("graphPanel.sideBar.settings.showPropertyPanel")}
-          />
-          <LabeledCheckBox
-            checked={showNodeSearchBar}
-            onCheckedChange={setShowNodeSearchBar}
-            label={t("graphPanel.sideBar.settings.showSearchBar")}
-          />
-
-          <Separator />
-
-          <LabeledCheckBox
-            checked={showNodeLabel}
-            onCheckedChange={setShowNodeLabel}
-            label={t("graphPanel.sideBar.settings.showNodeLabel")}
-          />
-          <LabeledCheckBox
-            checked={enableNodeDrag}
-            onCheckedChange={setEnableNodeDrag}
-            label={t("graphPanel.sideBar.settings.nodeDraggable")}
-          />
-
-          <Separator />
-
-          <LabeledCheckBox
-            checked={showEdgeLabel}
-            onCheckedChange={setShowEdgeLabel}
-            label={t("graphPanel.sideBar.settings.showEdgeLabel")}
-          />
-          <LabeledCheckBox
-            checked={enableHideUnselectedEdges}
-            onCheckedChange={setEnableHideUnselectedEdges}
-            label={t("graphPanel.sideBar.settings.hideUnselectedEdges")}
-          />
-          <LabeledCheckBox
-            checked={enableEdgeEvents}
-            onCheckedChange={setEnableEdgeEvents}
-            label={t("graphPanel.sideBar.settings.edgeEvents")}
-          />
-
-          <Separator />
-          <LabeledNumberInput
-            label={t("graphPanel.sideBar.settings.maxQueryDepth")}
-            min={1}
-            value={graphQueryMaxDepth}
-            onEditFinished={setGraphQueryMaxDepth}
-          />
-          <LabeledNumberInput
-            label={t("graphPanel.sideBar.settings.minDegree")}
-            min={0}
-            value={graphMinDegree}
-            onEditFinished={setGraphMinDegree}
-          />
-          <LabeledNumberInput
-            label={t("graphPanel.sideBar.settings.maxLayoutIterations")}
-            min={1}
-            max={20}
-            value={graphLayoutMaxIterations}
-            onEditFinished={setGraphLayoutMaxIterations}
-          />
-          <Separator />
-
+        <RefreshCwIcon />
+      </Button>
+      <Popover open={opened} onOpenChange={setOpened}>
+        <PopoverTrigger asChild>
+          <Button variant={controlButtonVariant} tooltip={t('graphPanel.sideBar.settings.settings')} size="icon">
+            <SettingsIcon />
+          </Button>
+        </PopoverTrigger>
+        <PopoverContent
+          side="right"
+          align="start"
+          className="mb-2 p-2"
+          onCloseAutoFocus={(e) => e.preventDefault()}
+        >
          <div className="flex flex-col gap-2">
-            <label className="text-sm font-medium">{t("graphPanel.sideBar.settings.apiKey")}</label>
-            <form className="flex h-6 gap-2" onSubmit={(e) => e.preventDefault()}>
-              <div className="w-0 flex-1">
-                <Input
-                  type="password"
-                  value={tempApiKey}
-                  onChange={handleTempApiKeyChange}
-                  placeholder={t("graphPanel.sideBar.settings.enterYourAPIkey")}
-                  className="max-h-full w-full min-w-0"
-                  autoComplete="off"
-                />
-              </div>
-              <Button
-                onClick={setApiKey}
-                variant="outline"
-                size="sm"
-                className="max-h-full shrink-0"
-              >
-                {t("graphPanel.sideBar.settings.save")}
-              </Button>
-            </form>
+            <LabeledCheckBox
+              checked={enableHealthCheck}
+              onCheckedChange={setEnableHealthCheck}
+              label={t('graphPanel.sideBar.settings.healthCheck')}
+            />
+
+            <Separator />
+
+            <LabeledCheckBox
+              checked={showPropertyPanel}
+              onCheckedChange={setShowPropertyPanel}
+              label={t('graphPanel.sideBar.settings.showPropertyPanel')}
+            />
+            <LabeledCheckBox
+              checked={showNodeSearchBar}
+              onCheckedChange={setShowNodeSearchBar}
+              label={t('graphPanel.sideBar.settings.showSearchBar')}
+            />
+
+            <Separator />
+
+            <LabeledCheckBox
+              checked={showNodeLabel}
+              onCheckedChange={setShowNodeLabel}
+              label={t('graphPanel.sideBar.settings.showNodeLabel')}
+            />
+            <LabeledCheckBox
+              checked={enableNodeDrag}
+              onCheckedChange={setEnableNodeDrag}
+              label={t('graphPanel.sideBar.settings.nodeDraggable')}
+            />
+
+            <Separator />
+
+            <LabeledCheckBox
+              checked={showEdgeLabel}
+              onCheckedChange={setShowEdgeLabel}
+              label={t('graphPanel.sideBar.settings.showEdgeLabel')}
+            />
+            <LabeledCheckBox
+              checked={enableHideUnselectedEdges}
+              onCheckedChange={setEnableHideUnselectedEdges}
+              label={t('graphPanel.sideBar.settings.hideUnselectedEdges')}
+            />
+            <LabeledCheckBox
+              checked={enableEdgeEvents}
+              onCheckedChange={setEnableEdgeEvents}
+              label={t('graphPanel.sideBar.settings.edgeEvents')}
+            />
+
+            <Separator />
+            <LabeledNumberInput
+              label={t('graphPanel.sideBar.settings.maxQueryDepth')}
+              min={1}
+              value={graphQueryMaxDepth}
+              onEditFinished={setGraphQueryMaxDepth}
+            />
+            <LabeledNumberInput
+              label={t('graphPanel.sideBar.settings.minDegree')}
+              min={0}
+              value={graphMinDegree}
+              onEditFinished={setGraphMinDegree}
+            />
+            <LabeledNumberInput
+              label={t('graphPanel.sideBar.settings.maxLayoutIterations')}
+              min={1}
+              max={30}
+              value={graphLayoutMaxIterations}
+              onEditFinished={setGraphLayoutMaxIterations}
+            />
+            <Separator />
+
+            <div className="flex flex-col gap-2">
+              <label className="text-sm font-medium">{t('graphPanel.sideBar.settings.apiKey')}</label>
+              <form className="flex h-6 gap-2" onSubmit={(e) => e.preventDefault()}>
+                <div className="w-0 flex-1">
+                  <Input
+                    type="password"
+                    value={tempApiKey}
+                    onChange={handleTempApiKeyChange}
+                    placeholder={t('graphPanel.sideBar.settings.enterYourAPIkey')}
+                    className="max-h-full w-full min-w-0"
+                    autoComplete="off"
+                  />
+                </div>
+                <Button
+                  onClick={setApiKey}
+                  variant="outline"
+                  size="sm"
+                  className="max-h-full shrink-0"
+                >
+                  {t('graphPanel.sideBar.settings.save')}
+                </Button>
+              </form>
+            </div>
          </div>
-        </div>
-      </PopoverContent>
-    </Popover>
+        </PopoverContent>
+      </Popover>
+    </>
  )
 }
--- a/lightrag_webui/src/components/graph/SettingsDisplay.tsx
+++ b/lightrag_webui/src/components/graph/SettingsDisplay.tsx
@@ -0,0 +1,21 @@
+import { useSettingsStore } from '@/stores/settings'
+import { useTranslation } from 'react-i18next'
+
+/**
+ * Component that displays current values of important graph settings
+ * Positioned to the right of the toolbar at the bottom-left corner
+ */
+const SettingsDisplay = () => {
+  const { t } = useTranslation()
+  const graphQueryMaxDepth = useSettingsStore.use.graphQueryMaxDepth()
+  const graphMinDegree = useSettingsStore.use.graphMinDegree()
+
+  return (
+    <div className="absolute bottom-2 left-[calc(2rem+2.5rem)] flex items-center gap-2 text-xs text-gray-400">
+      <div>{t('graphPanel.sideBar.settings.depth')}: {graphQueryMaxDepth}</div>
+      <div>{t('graphPanel.sideBar.settings.degree')}: {graphMinDegree}</div>
+    </div>
+  )
+}
+
+export default SettingsDisplay
--- a/lightrag_webui/src/components/retrieval/QuerySettings.tsx
+++ b/lightrag_webui/src/components/retrieval/QuerySettings.tsx
@@ -25,7 +25,7 @@ export default function QuerySettings() {
  }, [])

  return (
-    <Card className="flex shrink-0 flex-col">
+    <Card className="flex shrink-0 flex-col min-w-[180px]">
      <CardHeader className="px-4 pt-4 pb-2">
        <CardTitle>{t('retrievePanel.querySettings.parametersTitle')}</CardTitle>
        <CardDescription>{t('retrievePanel.querySettings.parametersDescription')}</CardDescription>
--- a/lightrag_webui/src/components/ui/AsyncSearch.tsx
+++ b/lightrag_webui/src/components/ui/AsyncSearch.tsx
@@ -1,4 +1,4 @@
-import { useState, useEffect, useCallback } from 'react'
+import React, { useState, useEffect, useCallback } from 'react'
 import { Loader2 } from 'lucide-react'
 import { useDebounce } from '@/hooks/useDebounce'

@@ -193,7 +193,7 @@ export function AsyncSearch<T>({
            </div>
          )}
        </div>
-        <CommandList hidden={!open || debouncedSearchTerm.length === 0}>
+        <CommandList hidden={!open}>
          {error && <div className="text-destructive p-4 text-center">{error}</div>}
          {loading && options.length === 0 && (loadingSkeleton || <DefaultLoadingSkeleton />)}
          {!loading &&
@@ -204,7 +204,7 @@ export function AsyncSearch<T>({
            ))}
          <CommandGroup>
            {options.map((option, idx) => (
-              <>
+              <React.Fragment key={getOptionValue(option) + `-fragment-${idx}`}>
                <CommandItem
                  key={getOptionValue(option) + `${idx}`}
                  value={getOptionValue(option)}
@@ -215,9 +215,9 @@ export function AsyncSearch<T>({
                  {renderOption(option)}
                </CommandItem>
                {idx !== options.length - 1 && (
-                  <div key={idx} className="bg-foreground/10 h-[1px]" />
+                  <div key={`divider-${idx}`} className="bg-foreground/10 h-[1px]" />
                )}
-              </>
+              </React.Fragment>
            ))}
          </CommandGroup>
        </CommandList>
--- a/lightrag_webui/src/components/ui/TabContent.tsx
+++ b/lightrag_webui/src/components/ui/TabContent.tsx
@@ -0,0 +1,37 @@
+import React, { useEffect } from 'react';
+import { useTabVisibility } from '@/contexts/useTabVisibility';
+
+interface TabContentProps {
+  tabId: string;
+  children: React.ReactNode;
+  className?: string;
+}
+
+/**
+ * TabContent component that manages visibility based on tab selection
+ * Works with the TabVisibilityContext to show/hide content based on active tab
+ */
+const TabContent: React.FC<TabContentProps> = ({ tabId, children, className = '' }) => {
+  const { isTabVisible, setTabVisibility } = useTabVisibility();
+  const isVisible = isTabVisible(tabId);
+
+  // Register this tab with the context when mounted
+  useEffect(() => {
+    setTabVisibility(tabId, true);
+
+    // Cleanup when unmounted
+    return () => {
+      setTabVisibility(tabId, false);
+    };
+  }, [tabId, setTabVisibility]);
+
+  // Use CSS to hide content instead of not rendering it
+  // This prevents components from unmounting when tabs are switched
+  return (
+    <div className={`${className} ${isVisible ? '' : 'hidden'}`}>
+      {children}
+    </div>
+  );
+};
+
+export default TabContent;
--- a/lightrag_webui/src/components/ui/Tabs.tsx
+++ b/lightrag_webui/src/components/ui/Tabs.tsx
@@ -42,9 +42,13 @@ const TabsContent = React.forwardRef<
  <TabsPrimitive.Content
    ref={ref}
    className={cn(
-      'ring-offset-background focus-visible:ring-ring mt-2 focus-visible:ring-2 focus-visible:ring-offset-2 focus-visible:outline-none',
+      'ring-offset-background focus-visible:ring-ring focus-visible:ring-2 focus-visible:ring-offset-2 focus-visible:outline-none',
+      'data-[state=inactive]:invisible data-[state=active]:visible',
+      'h-full w-full',
      className
    )}
+    // Force mounting of inactive tabs to preserve WebGL contexts
+    forceMount
    {...props}
  />
 ))
--- a/lightrag_webui/src/components/ui/Tooltip.tsx
+++ b/lightrag_webui/src/components/ui/Tooltip.tsx
@@ -10,30 +10,43 @@ const TooltipTrigger = TooltipPrimitive.Trigger

 const processTooltipContent = (content: string) => {
  if (typeof content !== 'string') return content
-  return content.split('\\n').map((line, i) => (
-    <React.Fragment key={i}>
-      {line}
-      {i < content.split('\\n').length - 1 && <br />}
-    </React.Fragment>
-  ))
+  return (
+    <div className="relative top-0 pt-1 whitespace-pre-wrap break-words">
+      {content}
+    </div>
+  )
 }

 const TooltipContent = React.forwardRef<
  React.ComponentRef<typeof TooltipPrimitive.Content>,
-  React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content>
->(({ className, sideOffset = 4, children, ...props }, ref) => (
-  <TooltipPrimitive.Content
-    ref={ref}
-    sideOffset={sideOffset}
-    className={cn(
-      'bg-popover text-popover-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 mx-1 max-w-sm overflow-hidden rounded-md border px-3 py-2 text-sm shadow-md',
-      className
-    )}
-    {...props}
-  >
-    {typeof children === 'string' ? processTooltipContent(children) : children}
-  </TooltipPrimitive.Content>
-))
+  React.ComponentPropsWithoutRef<typeof TooltipPrimitive.Content> & {
+    side?: 'top' | 'right' | 'bottom' | 'left'
+    align?: 'start' | 'center' | 'end'
+  }
+>(({ className, side = 'left', align = 'start', children, ...props }, ref) => {
+  const contentRef = React.useRef<HTMLDivElement>(null);
+
+  React.useEffect(() => {
+    if (contentRef.current) {
+      contentRef.current.scrollTop = 0;
+    }
+  }, [children]);
+
+  return (
+    <TooltipPrimitive.Content
+      ref={ref}
+      side={side}
+      align={align}
+      className={cn(
+        'bg-popover text-popover-foreground animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 max-h-[60vh] overflow-y-auto whitespace-pre-wrap break-words rounded-md border px-3 py-2 text-sm shadow-md',
+        className
+      )}
+      {...props}
+    >
+      {typeof children === 'string' ? processTooltipContent(children) : children}
+    </TooltipPrimitive.Content>
+  );
+})
 TooltipContent.displayName = TooltipPrimitive.Content.displayName

 export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider }
--- a/lightrag_webui/src/contexts/TabVisibilityProvider.tsx
+++ b/lightrag_webui/src/contexts/TabVisibilityProvider.tsx
@@ -0,0 +1,53 @@
+import React, { useState, useEffect, useMemo } from 'react';
+import { TabVisibilityContext } from './context';
+import { TabVisibilityContextType } from './types';
+import { useSettingsStore } from '@/stores/settings';
+
+interface TabVisibilityProviderProps {
+  children: React.ReactNode;
+}
+
+/**
+ * Provider component for the TabVisibility context
+ * Manages the visibility state of tabs throughout the application
+ */
+export const TabVisibilityProvider: React.FC<TabVisibilityProviderProps> = ({ children }) => {
+  // Get current tab from settings store
+  const currentTab = useSettingsStore.use.currentTab();
+
+  // Initialize visibility state with current tab as visible
+  const [visibleTabs, setVisibleTabs] = useState<Record<string, boolean>>(() => ({
+    [currentTab]: true
+  }));
+
+  // Update visibility when current tab changes
+  useEffect(() => {
+    setVisibleTabs((prev) => ({
+      ...prev,
+      [currentTab]: true
+    }));
+  }, [currentTab]);
+
+  // Create the context value with memoization to prevent unnecessary re-renders
+  const contextValue = useMemo<TabVisibilityContextType>(
+    () => ({
+      visibleTabs,
+      setTabVisibility: (tabId: string, isVisible: boolean) => {
+        setVisibleTabs((prev) => ({
+          ...prev,
+          [tabId]: isVisible,
+        }));
+      },
+      isTabVisible: (tabId: string) => !!visibleTabs[tabId],
+    }),
+    [visibleTabs]
+  );
+
+  return (
+    <TabVisibilityContext.Provider value={contextValue}>
+      {children}
+    </TabVisibilityContext.Provider>
+  );
+};
+
+export default TabVisibilityProvider;
--- a/lightrag_webui/src/contexts/context.ts
+++ b/lightrag_webui/src/contexts/context.ts
@@ -0,0 +1,12 @@
+import { createContext } from 'react';
+import { TabVisibilityContextType } from './types';
+
+// Default context value
+const defaultContext: TabVisibilityContextType = {
+  visibleTabs: {},
+  setTabVisibility: () => {},
+  isTabVisible: () => false,
+};
+
+// Create the context
+export const TabVisibilityContext = createContext<TabVisibilityContextType>(defaultContext);
--- a/lightrag_webui/src/contexts/types.ts
+++ b/lightrag_webui/src/contexts/types.ts
@@ -0,0 +1,5 @@
+export interface TabVisibilityContextType {
+  visibleTabs: Record<string, boolean>;
+  setTabVisibility: (tabId: string, isVisible: boolean) => void;
+  isTabVisible: (tabId: string) => boolean;
+}
--- a/lightrag_webui/src/contexts/useTabVisibility.ts
+++ b/lightrag_webui/src/contexts/useTabVisibility.ts
@@ -0,0 +1,17 @@
+import { useContext } from 'react';
+import { TabVisibilityContext } from './context';
+import { TabVisibilityContextType } from './types';
+
+/**
+ * Custom hook to access the tab visibility context
+ * @returns The tab visibility context
+ */
+export const useTabVisibility = (): TabVisibilityContextType => {
+  const context = useContext(TabVisibilityContext);
+
+  if (!context) {
+    throw new Error('useTabVisibility must be used within a TabVisibilityProvider');
+  }
+
+  return context;
+};
--- a/lightrag_webui/src/features/ApiSite.tsx
+++ b/lightrag_webui/src/features/ApiSite.tsx
@@ -1,5 +1,40 @@
+import { useState, useEffect } from 'react'
+import { useTabVisibility } from '@/contexts/useTabVisibility'
 import { backendBaseUrl } from '@/lib/constants'
+import { useTranslation } from 'react-i18next'

 export default function ApiSite() {
-  return <iframe src={backendBaseUrl + '/docs'} className="size-full" />
+  const { t } = useTranslation()
+  const { isTabVisible } = useTabVisibility()
+  const isApiTabVisible = isTabVisible('api')
+  const [iframeLoaded, setIframeLoaded] = useState(false)
+
+  // Load the iframe once on component mount
+  useEffect(() => {
+    if (!iframeLoaded) {
+      setIframeLoaded(true)
+    }
+  }, [iframeLoaded])
+
+  // Use CSS to hide content when tab is not visible
+  return (
+    <div className={`size-full ${isApiTabVisible ? '' : 'hidden'}`}>
+      {iframeLoaded ? (
+        <iframe
+          src={backendBaseUrl + '/docs'}
+          className="size-full w-full h-full"
+          style={{ width: '100%', height: '100%', border: 'none' }}
+          // Use key to ensure iframe doesn't reload
+          key="api-docs-iframe"
+        />
+      ) : (
+        <div className="flex h-full w-full items-center justify-center bg-background">
+          <div className="text-center">
+            <div className="mb-2 h-8 w-8 animate-spin rounded-full border-4 border-primary border-t-transparent"></div>
+            <p>{t('apiSite.loading')}</p>
+          </div>
+        </div>
+      )}
+    </div>
+  )
 }
--- a/lightrag_webui/src/features/DocumentManager.tsx
+++ b/lightrag_webui/src/features/DocumentManager.tsx
@@ -1,5 +1,6 @@
-import { useState, useEffect, useCallback } from 'react'
+import { useState, useEffect, useCallback, useRef } from 'react'
 import { useTranslation } from 'react-i18next'
+import { useTabVisibility } from '@/contexts/useTabVisibility'
 import Button from '@/components/ui/Button'
 import {
  Table,
@@ -26,6 +27,9 @@ export default function DocumentManager() {
  const { t } = useTranslation()
  const health = useBackendState.use.health()
  const [docs, setDocs] = useState<DocsStatusesResponse | null>(null)
+  const { isTabVisible } = useTabVisibility()
+  const isDocumentsTabVisible = isTabVisible('documents')
+  const initialLoadRef = useRef(false)

  const fetchDocuments = useCallback(async () => {
    try {
@@ -48,11 +52,15 @@ export default function DocumentManager() {
    } catch (err) {
      toast.error(t('documentPanel.documentManager.errors.loadFailed', { error: errorMessage(err) }))
    }
-  }, [setDocs])
+  }, [setDocs, t])

+  // Only fetch documents when the tab becomes visible for the first time
  useEffect(() => {
-    fetchDocuments()
-  }, []) // eslint-disable-line react-hooks/exhaustive-deps
+    if (isDocumentsTabVisible && !initialLoadRef.current) {
+      fetchDocuments()
+      initialLoadRef.current = true
+    }
+  }, [isDocumentsTabVisible, fetchDocuments])

  const scanDocuments = useCallback(async () => {
    try {
@@ -61,21 +69,24 @@ export default function DocumentManager() {
    } catch (err) {
      toast.error(t('documentPanel.documentManager.errors.scanFailed', { error: errorMessage(err) }))
    }
-  }, [])
+  }, [t])

+  // Only set up polling when the tab is visible and health is good
  useEffect(() => {
+    if (!isDocumentsTabVisible || !health) {
+      return
+    }
+
    const interval = setInterval(async () => {
-      if (!health) {
-        return
-      }
      try {
        await fetchDocuments()
      } catch (err) {
        toast.error(t('documentPanel.documentManager.errors.scanProgressFailed', { error: errorMessage(err) }))
      }
    }, 5000)
+
    return () => clearInterval(interval)
-  }, [health, fetchDocuments])
+  }, [health, fetchDocuments, t, isDocumentsTabVisible])

  return (
    <Card className="!size-full !rounded-none !border-none">
--- a/lightrag_webui/src/features/GraphViewer.tsx
+++ b/lightrag_webui/src/features/GraphViewer.tsx
@@ -1,4 +1,5 @@
-import { useEffect, useState, useCallback, useMemo } from 'react'
+import { useEffect, useState, useCallback, useMemo, useRef } from 'react'
+import { useTabVisibility } from '@/contexts/useTabVisibility'
 // import { MiniMap } from '@react-sigma/minimap'
 import { SigmaContainer, useRegisterEvents, useSigma } from '@react-sigma/core'
 import { Settings as SigmaSettings } from 'sigma/settings'
@@ -17,6 +18,7 @@ import Settings from '@/components/graph/Settings'
 import GraphSearch from '@/components/graph/GraphSearch'
 import GraphLabels from '@/components/graph/GraphLabels'
 import PropertiesView from '@/components/graph/PropertiesView'
+import SettingsDisplay from '@/components/graph/SettingsDisplay'

 import { useSettingsStore } from '@/stores/settings'
 import { useGraphStore } from '@/stores/graph'
@@ -90,8 +92,12 @@ const GraphEvents = () => {
        }
      },
      // Disable the autoscale at the first down interaction
-      mousedown: () => {
-        if (!sigma.getCustomBBox()) sigma.setCustomBBox(sigma.getBBox())
+      mousedown: (e) => {
+        // Only set custom BBox if it's a drag operation (mouse button is pressed)
+        const mouseEvent = e.original as MouseEvent;
+        if (mouseEvent.buttons !== 0 && !sigma.getCustomBBox()) {
+          sigma.setCustomBBox(sigma.getBBox())
+        }
      }
    })
  }, [registerEvents, sigma, draggedNode])
@@ -101,27 +107,46 @@ const GraphEvents = () => {

 const GraphViewer = () => {
  const [sigmaSettings, setSigmaSettings] = useState(defaultSigmaSettings)
+  const sigmaRef = useRef<any>(null)
+  const initAttemptedRef = useRef(false)

  const selectedNode = useGraphStore.use.selectedNode()
  const focusedNode = useGraphStore.use.focusedNode()
  const moveToSelectedNode = useGraphStore.use.moveToSelectedNode()
+  const isFetching = useGraphStore.use.isFetching()
+  const shouldRender = useGraphStore.use.shouldRender() // Rendering control state
+
+  // Get tab visibility
+  const { isTabVisible } = useTabVisibility()
+  const isGraphTabVisible = isTabVisible('knowledge-graph')

  const showPropertyPanel = useSettingsStore.use.showPropertyPanel()
  const showNodeSearchBar = useSettingsStore.use.showNodeSearchBar()
-  const renderLabels = useSettingsStore.use.showNodeLabel()
-
-  const enableEdgeEvents = useSettingsStore.use.enableEdgeEvents()
  const enableNodeDrag = useSettingsStore.use.enableNodeDrag()
-  const renderEdgeLabels = useSettingsStore.use.showEdgeLabel()

+  // Handle component mount/unmount and tab visibility
  useEffect(() => {
-    setSigmaSettings({
-      ...defaultSigmaSettings,
-      enableEdgeEvents,
-      renderEdgeLabels,
-      renderLabels
-    })
-  }, [renderLabels, enableEdgeEvents, renderEdgeLabels])
+    // When component mounts or tab becomes visible
+    if (isGraphTabVisible && !shouldRender && !isFetching && !initAttemptedRef.current) {
+      // If tab is visible but graph is not rendering, try to enable rendering
+      useGraphStore.getState().setShouldRender(true)
+      initAttemptedRef.current = true
+      console.log('Graph viewer initialized')
+    }
+
+    // Cleanup function when component unmounts
+    return () => {
+      // Only log cleanup, don't actually clean up the WebGL context
+      // This allows the WebGL context to persist across tab switches
+      console.log('Graph viewer cleanup')
+    }
+  }, [isGraphTabVisible, shouldRender, isFetching])
+
+  // Initialize sigma settings once on component mount
+  // All dynamic settings will be updated in GraphControl using useSetSettings
+  useEffect(() => {
+    setSigmaSettings(defaultSigmaSettings)
+  }, [])

  const onSearchFocus = useCallback((value: GraphSearchOption | null) => {
    if (value === null) useGraphStore.getState().setFocusedNode(null)
@@ -142,43 +167,73 @@ const GraphViewer = () => {
    [selectedNode]
  )

+  // Since TabsContent now forces mounting of all tabs, we need to conditionally render
+  // the SigmaContainer based on visibility to avoid unnecessary rendering
  return (
-    <SigmaContainer settings={sigmaSettings} className="!bg-background !size-full overflow-hidden">
-      <GraphControl />
+    <div className="relative h-full w-full">
+      {/* Only render the SigmaContainer when the tab is visible */}
+      {isGraphTabVisible ? (
+        <SigmaContainer
+          settings={sigmaSettings}
+          className="!bg-background !size-full overflow-hidden"
+          ref={sigmaRef}
+        >
+          <GraphControl />

-      {enableNodeDrag && <GraphEvents />}
+          {enableNodeDrag && <GraphEvents />}

-      <FocusOnNode node={autoFocusedNode} move={moveToSelectedNode} />
+          <FocusOnNode node={autoFocusedNode} move={moveToSelectedNode} />

-      <div className="absolute top-2 left-2 flex items-start gap-2">
-        <GraphLabels />
-        {showNodeSearchBar && (
-          <GraphSearch
-            value={searchInitSelectedNode}
-            onFocus={onSearchFocus}
-            onChange={onSearchSelect}
-          />
-        )}
-      </div>
+          <div className="absolute top-2 left-2 flex items-start gap-2">
+            <GraphLabels />
+            {showNodeSearchBar && (
+              <GraphSearch
+                value={searchInitSelectedNode}
+                onFocus={onSearchFocus}
+                onChange={onSearchSelect}
+              />
+            )}
+          </div>

-      <div className="bg-background/60 absolute bottom-2 left-2 flex flex-col rounded-xl border-2 backdrop-blur-lg">
-        <Settings />
-        <ZoomControl />
-        <LayoutsControl />
-        <FullScreenControl />
-        {/* <ThemeToggle /> */}
-      </div>
+          <div className="bg-background/60 absolute bottom-2 left-2 flex flex-col rounded-xl border-2 backdrop-blur-lg">
+            <Settings />
+            <ZoomControl />
+            <LayoutsControl />
+            <FullScreenControl />
+            {/* <ThemeToggle /> */}
+          </div>

-      {showPropertyPanel && (
-        <div className="absolute top-2 right-2">
-          <PropertiesView />
+          {showPropertyPanel && (
+            <div className="absolute top-2 right-2">
+              <PropertiesView />
+            </div>
+          )}
+
+          {/* <div className="absolute bottom-2 right-2 flex flex-col rounded-xl border-2">
+            <MiniMap width="100px" height="100px" />
+          </div> */}
+
+          <SettingsDisplay />
+        </SigmaContainer>
+      ) : (
+        // Placeholder when tab is not visible
+        <div className="flex h-full w-full items-center justify-center">
+          <div className="text-center text-muted-foreground">
+            {/* Placeholder content */}
+          </div>
        </div>
      )}

-      {/* <div className="absolute bottom-2 right-2 flex flex-col rounded-xl border-2">
-        <MiniMap width="100px" height="100px" />
-      </div> */}
-    </SigmaContainer>
+      {/* Loading overlay - shown when data is loading */}
+      {isFetching && (
+        <div className="absolute inset-0 flex items-center justify-center bg-background/80 z-10">
+          <div className="text-center">
+            <div className="mb-2 h-8 w-8 animate-spin rounded-full border-4 border-primary border-t-transparent"></div>
+            <p>Loading Graph Data...</p>
+          </div>
+        </div>
+      )}
+    </div>
  )
 }

--- a/lightrag_webui/src/features/SiteHeader.tsx
+++ b/lightrag_webui/src/features/SiteHeader.tsx
@@ -1,6 +1,6 @@
 import Button from '@/components/ui/Button'
 import { SiteInfo } from '@/lib/constants'
-import ThemeToggle from '@/components/ThemeToggle'
+import AppSettings from '@/components/AppSettings'
 import LanguageToggle from '@/components/LanguageToggle'
 import { TabsList, TabsTrigger } from '@/components/ui/Tabs'
 import { useSettingsStore } from '@/stores/settings'
@@ -77,23 +77,15 @@ export default function SiteHeader() {
        <TabsNavigation />
      </div>

-      <nav className="flex items-center gap-2">
-        <Button variant="ghost" size="icon" side="bottom" tooltip={t('header.projectRepository')}>
-          <a href={SiteInfo.github} target="_blank" rel="noopener noreferrer">
-            <GithubIcon className="size-4" aria-hidden="true" />
-          </a>
-        </Button>
-        <LanguageToggle />
-        <ThemeToggle />
-        <Button
-          variant="ghost"
-          size="icon"
-          side="bottom"
-          tooltip="Log Out"
-          onClick={handleLogout}
-        >
-          <LogOutIcon className="size-4" aria-hidden="true" />
-        </Button>
+      <nav className="flex items-center">
+        <div className="flex items-center gap-2">
+          <Button variant="ghost" size="icon" side="bottom" tooltip={t('header.projectRepository')}>
+            <a href={SiteInfo.github} target="_blank" rel="noopener noreferrer">
+              <GithubIcon className="size-4" aria-hidden="true" />
+            </a>
+          </Button>
+          <AppSettings />
+        </div>
      </nav>
    </header>
  )
--- a/lightrag_webui/src/hooks/useLightragGraph.tsx
+++ b/lightrag_webui/src/hooks/useLightragGraph.tsx
@@ -1,11 +1,12 @@
 import Graph, { DirectedGraph } from 'graphology'
-import { useCallback, useEffect } from 'react'
+import { useCallback, useEffect, useRef } from 'react'
 import { randomColor, errorMessage } from '@/lib/utils'
 import * as Constants from '@/lib/constants'
 import { useGraphStore, RawGraph } from '@/stores/graph'
 import { queryGraphs } from '@/api/lightrag'
 import { useBackendState } from '@/stores/state'
 import { useSettingsStore } from '@/stores/settings'
+import { useTabVisibility } from '@/contexts/useTabVisibility'

 import seedrandom from 'seedrandom'

@@ -136,15 +137,23 @@ const fetchGraph = async (label: string, maxDepth: number, minDegree: number) =>
  return rawGraph
 }

+// Create a new graph instance with the raw graph data
 const createSigmaGraph = (rawGraph: RawGraph | null) => {
+  // Always create a new graph instance
  const graph = new DirectedGraph()

+  // Add nodes from raw graph data
  for (const rawNode of rawGraph?.nodes ?? []) {
+    // Ensure we have fresh random positions for nodes
+    seedrandom(rawNode.id + Date.now().toString(), { global: true })
+    const x = Math.random()
+    const y = Math.random()
+
    graph.addNode(rawNode.id, {
      label: rawNode.labels.join(', '),
      color: rawNode.color,
-      x: rawNode.x,
-      y: rawNode.y,
+      x: x,
+      y: y,
      size: rawNode.size,
      // for node-border
      borderColor: Constants.nodeBorderColor,
@@ -152,6 +161,7 @@ const createSigmaGraph = (rawGraph: RawGraph | null) => {
    })
  }

+  // Add edges from raw graph data
  for (const rawEdge of rawGraph?.edges ?? []) {
    rawEdge.dynamicId = graph.addDirectedEdge(rawEdge.source, rawEdge.target, {
      label: rawEdge.type || undefined
@@ -161,14 +171,30 @@ const createSigmaGraph = (rawGraph: RawGraph | null) => {
  return graph
 }

-const lastQueryLabel = { label: '', maxQueryDepth: 0, minDegree: 0 }
-
 const useLightrangeGraph = () => {
  const queryLabel = useSettingsStore.use.queryLabel()
  const rawGraph = useGraphStore.use.rawGraph()
  const sigmaGraph = useGraphStore.use.sigmaGraph()
  const maxQueryDepth = useSettingsStore.use.graphQueryMaxDepth()
  const minDegree = useSettingsStore.use.graphMinDegree()
+  const isFetching = useGraphStore.use.isFetching()
+
+  // Get tab visibility
+  const { isTabVisible } = useTabVisibility()
+  const isGraphTabVisible = isTabVisible('knowledge-graph')
+
+  // Track previous parameters to detect actual changes
+  const prevParamsRef = useRef({ queryLabel, maxQueryDepth, minDegree })
+
+  // Use ref to track if data has been loaded and initial load
+  const dataLoadedRef = useRef(false)
+  const initialLoadRef = useRef(false)
+
+  // Check if parameters have changed
+  const paramsChanged =
+    prevParamsRef.current.queryLabel !== queryLabel ||
+    prevParamsRef.current.maxQueryDepth !== maxQueryDepth ||
+    prevParamsRef.current.minDegree !== minDegree

  const getNode = useCallback(
    (nodeId: string) => {
@@ -184,35 +210,131 @@ const useLightrangeGraph = () => {
    [rawGraph]
  )

-  useEffect(() => {
-    if (queryLabel) {
-      if (lastQueryLabel.label !== queryLabel ||
-          lastQueryLabel.maxQueryDepth !== maxQueryDepth ||
-          lastQueryLabel.minDegree !== minDegree) {
-        lastQueryLabel.label = queryLabel
-        lastQueryLabel.maxQueryDepth = maxQueryDepth
-        lastQueryLabel.minDegree = minDegree
+  // Track if a fetch is in progress to prevent multiple simultaneous fetches
+  const fetchInProgressRef = useRef(false)

+  // Data fetching logic - simplified but preserving TAB visibility check
+  useEffect(() => {
+    // Skip if fetch is already in progress
+    if (fetchInProgressRef.current) {
+      return
+    }
+
+    // If there's no query label, reset the graph
+    if (!queryLabel) {
+      if (rawGraph !== null || sigmaGraph !== null) {
        const state = useGraphStore.getState()
        state.reset()
-        fetchGraph(queryLabel, maxQueryDepth, minDegree).then((data) => {
-          // console.debug('Query label: ' + queryLabel)
-          state.setSigmaGraph(createSigmaGraph(data))
-          data?.buildDynamicMap()
-          state.setRawGraph(data)
+        state.setGraphDataFetchAttempted(false)
+        state.setLabelsFetchAttempted(false)
+      }
+      dataLoadedRef.current = false
+      initialLoadRef.current = false
+      return
+    }
+
+    // Check if parameters have changed
+    if (!isFetching && !fetchInProgressRef.current &&
+        (paramsChanged || !useGraphStore.getState().graphDataFetchAttempted)) {
+
+      // Only fetch data if the Graph tab is visible
+      if (!isGraphTabVisible) {
+        console.log('Graph tab not visible, skipping data fetch');
+        return;
+      }
+
+      // Set flags
+      fetchInProgressRef.current = true
+      useGraphStore.getState().setGraphDataFetchAttempted(true)
+
+      const state = useGraphStore.getState()
+      state.setIsFetching(true)
+      state.setShouldRender(false) // Disable rendering during data loading
+
+      // Clear selection and highlighted nodes before fetching new graph
+      state.clearSelection()
+      if (state.sigmaGraph) {
+        state.sigmaGraph.forEachNode((node) => {
+          state.sigmaGraph?.setNodeAttribute(node, 'highlighted', false)
        })
      }
-    } else {
-      const state = useGraphStore.getState()
-      state.reset()
-      state.setSigmaGraph(new DirectedGraph())
+
+      // Update parameter reference
+      prevParamsRef.current = { queryLabel, maxQueryDepth, minDegree }
+
+      console.log('Fetching graph data...')
+
+      // Use a local copy of the parameters
+      const currentQueryLabel = queryLabel
+      const currentMaxQueryDepth = maxQueryDepth
+      const currentMinDegree = minDegree
+
+      // Fetch graph data
+      fetchGraph(currentQueryLabel, currentMaxQueryDepth, currentMinDegree).then((data) => {
+        const state = useGraphStore.getState()
+
+        // Reset state
+        state.reset()
+
+        // Create and set new graph directly
+        const newSigmaGraph = createSigmaGraph(data)
+        data?.buildDynamicMap()
+
+        // Set new graph data
+        state.setSigmaGraph(newSigmaGraph)
+        state.setRawGraph(data)
+
+        // No longer need to extract labels from graph data
+
+        // Update flags
+        dataLoadedRef.current = true
+        initialLoadRef.current = true
+        fetchInProgressRef.current = false
+
+        // Reset camera view
+        state.setMoveToSelectedNode(true)
+
+        // Enable rendering if the tab is visible
+        state.setShouldRender(isGraphTabVisible)
+        state.setIsFetching(false)
+      }).catch((error) => {
+        console.error('Error fetching graph data:', error)
+
+        // Reset state on error
+        const state = useGraphStore.getState()
+        state.setIsFetching(false)
+        state.setShouldRender(isGraphTabVisible)
+        dataLoadedRef.current = false
+        fetchInProgressRef.current = false
+        state.setGraphDataFetchAttempted(false)
+      })
    }
-  }, [queryLabel, maxQueryDepth, minDegree])
+  }, [queryLabel, maxQueryDepth, minDegree, isFetching, paramsChanged, isGraphTabVisible, rawGraph, sigmaGraph])
+
+  // Update rendering state and handle tab visibility changes
+  useEffect(() => {
+    // When tab becomes visible
+    if (isGraphTabVisible) {
+      // If we have data, enable rendering
+      if (rawGraph) {
+        useGraphStore.getState().setShouldRender(true)
+      }
+
+      // We no longer reset the fetch attempted flag here to prevent continuous API calls
+    } else {
+      // When tab becomes invisible, disable rendering
+      useGraphStore.getState().setShouldRender(false)
+    }
+  }, [isGraphTabVisible, rawGraph])

  const lightrageGraph = useCallback(() => {
+    // If we already have a graph instance, return it
    if (sigmaGraph) {
      return sigmaGraph as Graph<NodeType, EdgeType>
    }
+
+    // If no graph exists yet, create a new one and store it
+    console.log('Creating new Sigma graph instance')
    const graph = new DirectedGraph()
    useGraphStore.getState().setSigmaGraph(graph)
    return graph as Graph<NodeType, EdgeType>
--- a/lightrag_webui/src/i18n.ts
+++ b/lightrag_webui/src/i18n.ts
@@ -0,0 +1,37 @@
+import i18n from 'i18next'
+import { initReactI18next } from 'react-i18next'
+import { useSettingsStore } from '@/stores/settings'
+
+import en from './locales/en.json'
+import zh from './locales/zh.json'
+
+// Function to sync i18n with store state
+export const initializeI18n = async (): Promise<typeof i18n> => {
+  // Get initial language from store
+  const initialLanguage = useSettingsStore.getState().language
+
+  // Initialize with store language
+  await i18n.use(initReactI18next).init({
+    resources: {
+      en: { translation: en },
+      zh: { translation: zh }
+    },
+    lng: initialLanguage,
+    fallbackLng: 'en',
+    interpolation: {
+      escapeValue: false
+    }
+  })
+
+  // Subscribe to language changes
+  useSettingsStore.subscribe((state) => {
+    const currentLanguage = state.language
+    if (i18n.language !== currentLanguage) {
+      i18n.changeLanguage(currentLanguage)
+    }
+  })
+
+  return i18n
+}
+
+export default i18n
--- a/lightrag_webui/src/lib/constants.ts
+++ b/lightrag_webui/src/lib/constants.ts
@@ -1,7 +1,7 @@
 import { ButtonVariantType } from '@/components/ui/Button'

 export const backendBaseUrl = 'http://localhost:9621/'
-export const webuiPrefix = '/webui'
+export const webuiPrefix = ''

 export const controlButtonVariant: ButtonVariantType = 'ghost'

@@ -16,8 +16,8 @@ export const edgeColorDarkTheme = '#969696'
 export const edgeColorSelected = '#F57F17'
 export const edgeColorHighlighted = '#B2EBF2'

-export const searchResultLimit = 20
-export const labelListLimit = 40
+export const searchResultLimit = 50
+export const labelListLimit = 100

 export const minNodeSize = 4
 export const maxNodeSize = 20
--- a/lightrag_webui/src/locales/en.json
+++ b/lightrag_webui/src/locales/en.json
@@ -1,4 +1,11 @@
 {
+  "settings": {
+    "language": "Language",
+    "theme": "Theme",
+    "light": "Light",
+    "dark": "Dark",
+    "system": "System"
+  },
  "header": {
    "documents": "Documents",
    "knowledgeGraph": "Knowledge Graph",
@@ -91,9 +98,12 @@
        "maxQueryDepth": "Max Query Depth",
        "minDegree": "Minimum Degree",
        "maxLayoutIterations": "Max Layout Iterations",
+        "depth": "Depth",
+        "degree": "Degree",
        "apiKey": "API Key",
        "enterYourAPIkey": "Enter your API key",
-        "save": "Save"
+        "save": "Save",
+        "refreshLayout": "Refresh Layout"
      },

      "zoomControl": {
@@ -152,7 +162,14 @@
        "labels": "Labels",
        "degree": "Degree",
        "properties": "Properties",
-        "relationships": "Relationships"
+        "relationships": "Relationships",
+        "propertyNames": {
+          "description": "Description",
+          "entity_id": "Name",
+          "entity_type": "Type",
+          "source_id": "SrcID",
+          "Neighbour": "Neigh"
+        }
      },
      "edge": {
        "title": "Relationship",
@@ -242,5 +259,8 @@
      "streamResponse": "Stream Response",
      "streamResponseTooltip": "If True, enables streaming output for real-time responses"
    }
+  },
+  "apiSite": {
+    "loading": "Loading API Documentation..."
  }
 }
--- a/lightrag_webui/src/locales/zh.json
+++ b/lightrag_webui/src/locales/zh.json
@@ -1,4 +1,11 @@
 {
+  "settings": {
+    "language": "语言",
+    "theme": "主题",
+    "light": "浅色",
+    "dark": "深色",
+    "system": "系统"
+  },
  "header": {
    "documents": "文档",
    "knowledgeGraph": "知识图谱",
@@ -6,8 +13,8 @@
    "api": "API",
    "projectRepository": "项目仓库",
    "themeToggle": {
-      "switchToLight": "切换到亮色主题",
-      "switchToDark": "切换到暗色主题"
+      "switchToLight": "切换到浅色主题",
+      "switchToDark": "切换到深色主题"
    }
  },
  "login": {
@@ -24,35 +31,35 @@
  },
  "documentPanel": {
    "clearDocuments": {
-      "button": "清除",
-      "tooltip": "清除文档",
-      "title": "清除文档",
-      "confirm": "您确定要清除所有文档吗？",
+      "button": "清空",
+      "tooltip": "清空文档",
+      "title": "清空文档",
+      "confirm": "确定要清空所有文档吗？",
      "confirmButton": "确定",
-      "success": "文档已成功清除",
-      "failed": "清除文档失败:\n{{message}}",
-      "error": "清除文档失败:\n{{error}}"
+      "success": "文档清空成功",
+      "failed": "清空文档失败：\n{{message}}",
+      "error": "清空文档失败：\n{{error}}"
    },
    "uploadDocuments": {
      "button": "上传",
      "tooltip": "上传文档",
      "title": "上传文档",
-      "description": "拖放文档到此处或点击浏览。",
-      "uploading": "正在上传 {{name}}: {{percent}}%",
-      "success": "上传成功:\n{{name}} 上传成功",
-      "failed": "上传失败:\n{{name}}\n{{message}}",
-      "error": "上传失败:\n{{name}}\n{{error}}",
+      "description": "拖拽文件到此处或点击浏览",
+      "uploading": "正在上传 {{name}}：{{percent}}%",
+      "success": "上传成功：\n{{name}} 上传完成",
+      "failed": "上传失败：\n{{name}}\n{{message}}",
+      "error": "上传失败：\n{{name}}\n{{error}}",
      "generalError": "上传失败\n{{error}}",
-      "fileTypes": "支持的文件类型: TXT, MD, DOCX, PDF, PPTX, RTF, ODT, EPUB, HTML, HTM, TEX, JSON, XML, YAML, YML, CSV, LOG, CONF, INI, PROPERTIES, SQL, BAT, SH, C, CPP, PY, JAVA, JS, TS, SWIFT, GO, RB, PHP, CSS, SCSS, LESS"
+      "fileTypes": "支持的文件类型：TXT, MD, DOCX, PDF, PPTX, RTF, ODT, EPUB, HTML, HTM, TEX, JSON, XML, YAML, YML, CSV, LOG, CONF, INI, PROPERTIES, SQL, BAT, SH, C, CPP, PY, JAVA, JS, TS, SWIFT, GO, RB, PHP, CSS, SCSS, LESS"
    },
    "documentManager": {
      "title": "文档管理",
      "scanButton": "扫描",
      "scanTooltip": "扫描文档",
      "uploadedTitle": "已上传文档",
-      "uploadedDescription": "已上传文档及其状态列表。",
-      "emptyTitle": "暂无文档",
-      "emptyDescription": "尚未上传任何文档。",
+      "uploadedDescription": "已上传文档列表及其状态",
+      "emptyTitle": "无文档",
+      "emptyDescription": "还没有上传任何文档",
      "columns": {
        "id": "ID",
        "summary": "摘要",
@@ -66,7 +73,7 @@
      "status": {
        "completed": "已完成",
        "processing": "处理中",
-        "pending": "待处理",
+        "pending": "等待中",
        "failed": "失败"
      },
      "errors": {
@@ -86,39 +93,39 @@
        "showNodeLabel": "显示节点标签",
        "nodeDraggable": "节点可拖动",
        "showEdgeLabel": "显示边标签",
-        "hideUnselectedEdges": "隐藏未选中边",
+        "hideUnselectedEdges": "隐藏未选中的边",
        "edgeEvents": "边事件",
        "maxQueryDepth": "最大查询深度",
        "minDegree": "最小度数",
        "maxLayoutIterations": "最大布局迭代次数",
-        "apiKey": "API 密钥",
-        "enterYourAPIkey": "输入您的 API 密钥",
-        "save": "保存"
+        "depth": "深度",
+        "degree": "邻边",
+        "apiKey": "API密钥",
+        "enterYourAPIkey": "输入您的API密钥",
+        "save": "保存",
+        "refreshLayout": "刷新布局"
      },
-
      "zoomControl": {
        "zoomIn": "放大",
        "zoomOut": "缩小",
        "resetZoom": "重置缩放"
      },
-
      "layoutsControl": {
        "startAnimation": "开始布局动画",
        "stopAnimation": "停止布局动画",
-        "layoutGraph": "布局图",
+        "layoutGraph": "图布局",
        "layouts": {
-          "Circular": "环形布局",
-          "Circlepack": "圆形打包布局",
-          "Random": "随机布局",
-          "Noverlaps": "无重叠布局",
-          "Force Directed": "力导向布局",
-          "Force Atlas": "力导向图谱布局"
+          "Circular": "环形",
+          "Circlepack": "圆形打包",
+          "Random": "随机",
+          "Noverlaps": "无重叠",
+          "Force Directed": "力导向",
+          "Force Atlas": "力图"
        }
      },
-
      "fullScreenControl": {
        "fullScreen": "全屏",
-        "windowed": "窗口模式"
+        "windowed": "窗口"
      }
    },
    "statusIndicator": {
@@ -130,17 +137,17 @@
      "storageInfo": "存储信息",
      "workingDirectory": "工作目录",
      "inputDirectory": "输入目录",
-      "llmConfig": "LLM 配置",
-      "llmBinding": "LLM 绑定",
-      "llmBindingHost": "LLM 绑定主机",
-      "llmModel": "LLM 模型",
-      "maxTokens": "最大 Token 数",
+      "llmConfig": "LLM配置",
+      "llmBinding": "LLM绑定",
+      "llmBindingHost": "LLM绑定主机",
+      "llmModel": "LLM模型",
+      "maxTokens": "最大令牌数",
      "embeddingConfig": "嵌入配置",
      "embeddingBinding": "嵌入绑定",
      "embeddingBindingHost": "嵌入绑定主机",
      "embeddingModel": "嵌入模型",
      "storageConfig": "存储配置",
-      "kvStorage": "KV 存储",
+      "kvStorage": "KV存储",
      "docStatusStorage": "文档状态存储",
      "graphStorage": "图存储",
      "vectorStorage": "向量存储"
@@ -152,96 +159,93 @@
        "labels": "标签",
        "degree": "度数",
        "properties": "属性",
-        "relationships": "关系"
+        "relationships": "关系",
+        "propertyNames": {
+          "description": "描述",
+          "entity_id": "名称",
+          "entity_type": "类型",
+          "source_id": "信源ID",
+          "Neighbour": "邻接"
+        }
      },
      "edge": {
        "title": "关系",
        "id": "ID",
        "type": "类型",
-        "source": "源",
-        "target": "目标",
+        "source": "源节点",
+        "target": "目标节点",
        "properties": "属性"
      }
    },
    "search": {
      "placeholder": "搜索节点...",
-      "message": "以及其它 {count} 项"
+      "message": "还有 {count} 个"
    },
    "graphLabels": {
      "selectTooltip": "选择查询标签",
      "noLabels": "未找到标签",
      "label": "标签",
      "placeholder": "搜索标签...",
-      "andOthers": "以及其它 {count} 个"
+      "andOthers": "还有 {count} 个"
    }
  },
  "retrievePanel": {
    "chatMessage": {
      "copyTooltip": "复制到剪贴板",
-      "copyError": "无法复制文本到剪贴板"
+      "copyError": "复制文本到剪贴板失败"
    },
-
    "retrieval": {
-      "startPrompt": "在下面输入您的查询以开始检索",
-      "clear": "清除",
+      "startPrompt": "输入查询开始检索",
+      "clear": "清空",
      "send": "发送",
-      "placeholder": "输入您的查询...",
-      "error": "错误：无法获取响应"
+      "placeholder": "输入查询...",
+      "error": "错误：获取响应失败"
    },
    "querySettings": {
-      "parametersTitle": "参数设置",
+      "parametersTitle": "参数",
      "parametersDescription": "配置查询参数",
-
      "queryMode": "查询模式",
-      "queryModeTooltip": "选择检索策略：\n• 朴素：不使用高级技术的基本搜索\n• 本地：基于上下文的信息检索\n• 全局：利用全局知识库\n• 混合：结合本地和全局检索\n• 综合：集成知识图谱与向量检索",
+      "queryModeTooltip": "选择检索策略：\n• Naive：基础搜索，无高级技术\n• Local：上下文相关信息检索\n• Global：利用全局知识库\n• Hybrid：结合本地和全局检索\n• Mix：整合知识图谱和向量检索",
      "queryModeOptions": {
        "naive": "朴素",
        "local": "本地",
        "global": "全局",
        "hybrid": "混合",
-        "mix": "综合"
+        "mix": "混合"
      },
-
      "responseFormat": "响应格式",
-      "responseFormatTooltip": "定义响应格式。例如：\n• 多个段落\n• 单个段落\n• 项目符号",
+      "responseFormatTooltip": "定义响应格式。例如：\n• 多段落\n• 单段落\n• 要点",
      "responseFormatOptions": {
-        "multipleParagraphs": "多个段落",
-        "singleParagraph": "单个段落",
-        "bulletPoints": "项目符号"
+        "multipleParagraphs": "多段落",
+        "singleParagraph": "单段落",
+        "bulletPoints": "要点"
      },
-
-      "topK": "Top K 结果数",
-      "topKTooltip": "要检索的前 K 个项目数量。在“本地”模式下表示实体，在“全局”模式下表示关系",
-      "topKPlaceholder": "结果数",
-
-      "maxTokensTextUnit": "文本单元最大 Token 数",
-      "maxTokensTextUnitTooltip": "每个检索到的文本块允许的最大 Token 数",
-
-      "maxTokensGlobalContext": "全局上下文最大 Token 数",
-      "maxTokensGlobalContextTooltip": "在全局检索中为关系描述分配的最大 Token 数",
-
-      "maxTokensLocalContext": "本地上下文最大 Token 数",
-      "maxTokensLocalContextTooltip": "在本地检索中为实体描述分配的最大 Token 数",
-
+      "topK": "Top K结果",
+      "topKTooltip": "检索的顶部项目数。在'local'模式下表示实体，在'global'模式下表示关系",
+      "topKPlaceholder": "结果数量",
+      "maxTokensTextUnit": "文本单元最大令牌数",
+      "maxTokensTextUnitTooltip": "每个检索文本块允许的最大令牌数",
+      "maxTokensGlobalContext": "全局上下文最大令牌数",
+      "maxTokensGlobalContextTooltip": "全局检索中关系描述的最大令牌数",
+      "maxTokensLocalContext": "本地上下文最大令牌数",
+      "maxTokensLocalContextTooltip": "本地检索中实体描述的最大令牌数",
      "historyTurns": "历史轮次",
-      "historyTurnsTooltip": "在响应上下文中考虑的完整对话轮次（用户-助手对）",
-      "historyTurnsPlaceholder": "历史轮次的数量",
-
+      "historyTurnsTooltip": "响应上下文中考虑的完整对话轮次（用户-助手对）数量",
+      "historyTurnsPlaceholder": "历史轮次数",
      "hlKeywords": "高级关键词",
-      "hlKeywordsTooltip": "检索时优先考虑的高级关键词。请用逗号分隔",
+      "hlKeywordsTooltip": "检索中优先考虑的高级关键词列表。用逗号分隔",
      "hlkeywordsPlaceHolder": "输入关键词",
-
      "llKeywords": "低级关键词",
-      "llKeywordsTooltip": "用于优化检索焦点的低级关键词。请用逗号分隔",
-
-      "onlyNeedContext": "仅需要上下文",
-      "onlyNeedContextTooltip": "如果为 True，则仅返回检索到的上下文，而不会生成回复",
-
-      "onlyNeedPrompt": "仅需要提示",
-      "onlyNeedPromptTooltip": "如果为 True，则仅返回生成的提示，而不会生成回复",
-
+      "llKeywordsTooltip": "用于细化检索重点的低级关键词列表。用逗号分隔",
+      "onlyNeedContext": "仅需上下文",
+      "onlyNeedContextTooltip": "如果为True，仅返回检索到的上下文而不生成响应",
+      "onlyNeedPrompt": "仅需提示",
+      "onlyNeedPromptTooltip": "如果为True，仅返回生成的提示而不产生响应",
      "streamResponse": "流式响应",
-      "streamResponseTooltip": "如果为 True，则启用流式输出以获得实时响应"
+      "streamResponseTooltip": "如果为True，启用实时流式输出响应"
    }
+  },
+  "apiSite": {
+    "loading": "正在加载 API 文档..."
  }
 }
--- a/lightrag_webui/src/main.tsx
+++ b/lightrag_webui/src/main.tsx
@@ -5,6 +5,7 @@ import AppRouter from './AppRouter'
 import "./i18n";


+
 createRoot(document.getElementById('root')!).render(
  <StrictMode>
    <AppRouter />
--- a/lightrag_webui/src/stores/graph.ts
+++ b/lightrag_webui/src/stores/graph.ts
@@ -1,6 +1,7 @@
 import { create } from 'zustand'
 import { createSelectors } from '@/lib/utils'
 import { DirectedGraph } from 'graphology'
+import { getGraphLabels } from '@/api/lightrag'

 export type RawNodeType = {
  id: string
@@ -65,9 +66,17 @@ interface GraphState {

  rawGraph: RawGraph | null
  sigmaGraph: DirectedGraph | null
+  allDatabaseLabels: string[]

  moveToSelectedNode: boolean
+  isFetching: boolean
+  shouldRender: boolean

+  // Global flags to track data fetching attempts
+  graphDataFetchAttempted: boolean
+  labelsFetchAttempted: boolean
+
+  refreshLayout: () => void
  setSelectedNode: (nodeId: string | null, moveToSelectedNode?: boolean) => void
  setFocusedNode: (nodeId: string | null) => void
  setSelectedEdge: (edgeId: string | null) => void
@@ -79,19 +88,47 @@ interface GraphState {

  setRawGraph: (rawGraph: RawGraph | null) => void
  setSigmaGraph: (sigmaGraph: DirectedGraph | null) => void
+  setAllDatabaseLabels: (labels: string[]) => void
+  fetchAllDatabaseLabels: () => Promise<void>
+  setIsFetching: (isFetching: boolean) => void
+  setShouldRender: (shouldRender: boolean) => void
+
+  // Methods to set global flags
+  setGraphDataFetchAttempted: (attempted: boolean) => void
+  setLabelsFetchAttempted: (attempted: boolean) => void
 }

-const useGraphStoreBase = create<GraphState>()((set) => ({
+const useGraphStoreBase = create<GraphState>()((set, get) => ({
  selectedNode: null,
  focusedNode: null,
  selectedEdge: null,
  focusedEdge: null,

  moveToSelectedNode: false,
+  isFetching: false,
+  shouldRender: false,
+
+  // Initialize global flags
+  graphDataFetchAttempted: false,
+  labelsFetchAttempted: false,

  rawGraph: null,
  sigmaGraph: null,
+  allDatabaseLabels: ['*'],

+  refreshLayout: () => {
+    const currentGraph = get().sigmaGraph;
+    if (currentGraph) {
+      get().clearSelection();
+      get().setSigmaGraph(null);
+      setTimeout(() => {
+        get().setSigmaGraph(currentGraph);
+      }, 10);
+    }
+  },
+
+  setIsFetching: (isFetching: boolean) => set({ isFetching }),
+  setShouldRender: (shouldRender: boolean) => set({ shouldRender }),
  setSelectedNode: (nodeId: string | null, moveToSelectedNode?: boolean) =>
    set({ selectedNode: nodeId, moveToSelectedNode }),
  setFocusedNode: (nodeId: string | null) => set({ focusedNode: nodeId }),
@@ -104,25 +141,58 @@ const useGraphStoreBase = create<GraphState>()((set) => ({
      selectedEdge: null,
      focusedEdge: null
    }),
-  reset: () =>
+  reset: () => {
+    // Get the existing graph
+    const existingGraph = get().sigmaGraph;
+
+    // If we have an existing graph, clear it by removing all nodes
+    if (existingGraph) {
+      const nodes = Array.from(existingGraph.nodes());
+      nodes.forEach(node => existingGraph.dropNode(node));
+    }
+
    set({
      selectedNode: null,
      focusedNode: null,
      selectedEdge: null,
      focusedEdge: null,
      rawGraph: null,
-      sigmaGraph: null,
-      moveToSelectedNode: false
-    }),
+      // Keep the existing graph instance but with cleared data
+      moveToSelectedNode: false,
+      shouldRender: false
+    });
+  },

  setRawGraph: (rawGraph: RawGraph | null) =>
    set({
      rawGraph
    }),

-  setSigmaGraph: (sigmaGraph: DirectedGraph | null) => set({ sigmaGraph }),
+  setSigmaGraph: (sigmaGraph: DirectedGraph | null) => {
+    // Replace graph instance, no need to keep WebGL context
+    set({ sigmaGraph });
+  },

-  setMoveToSelectedNode: (moveToSelectedNode?: boolean) => set({ moveToSelectedNode })
+  setAllDatabaseLabels: (labels: string[]) => set({ allDatabaseLabels: labels }),
+
+  fetchAllDatabaseLabels: async () => {
+    try {
+      console.log('Fetching all database labels...');
+      const labels = await getGraphLabels();
+      set({ allDatabaseLabels: ['*', ...labels] });
+      return;
+    } catch (error) {
+      console.error('Failed to fetch all database labels:', error);
+      set({ allDatabaseLabels: ['*'] });
+      throw error;
+    }
+  },
+
+  setMoveToSelectedNode: (moveToSelectedNode?: boolean) => set({ moveToSelectedNode }),
+
+  // Methods to set global flags
+  setGraphDataFetchAttempted: (attempted: boolean) => set({ graphDataFetchAttempted: attempted }),
+  setLabelsFetchAttempted: (attempted: boolean) => set({ labelsFetchAttempted: attempted })
 }))

 const useGraphStore = createSelectors(useGraphStoreBase)
--- a/lightrag_webui/src/stores/settings.ts
+++ b/lightrag_webui/src/stores/settings.ts
@@ -5,6 +5,7 @@ import { defaultQueryLabel } from '@/lib/constants'
 import { Message, QueryRequest } from '@/api/lightrag'

 type Theme = 'dark' | 'light' | 'system'
+type Language = 'en' | 'zh'
 type Tab = 'documents' | 'knowledge-graph' | 'retrieval' | 'api'
 type Language = 'en' | 'zh'

@@ -48,7 +49,7 @@ interface SettingsState {
  setTheme: (theme: Theme) => void

  language: Language
-  setLanguage: (language: Language) => void
+  setLanguage: (lang: Language) => void

  enableHealthCheck: boolean
  setEnableHealthCheck: (enable: boolean) => void
@@ -62,7 +63,6 @@ const useSettingsStoreBase = create<SettingsState>()(
    (set) => ({
      theme: 'system',
      language: 'en',
-
      showPropertyPanel: true,
      showNodeSearchBar: true,

@@ -75,7 +75,7 @@ const useSettingsStoreBase = create<SettingsState>()(

      graphQueryMaxDepth: 3,
      graphMinDegree: 0,
-      graphLayoutMaxIterations: 10,
+      graphLayoutMaxIterations: 15,

      queryLabel: defaultQueryLabel,

@@ -104,7 +104,15 @@ const useSettingsStoreBase = create<SettingsState>()(

      setTheme: (theme: Theme) => set({ theme }),

-      setLanguage: (language: Language) => set({ language }),
+      setLanguage: (language: Language) => {
+        set({ language })
+        // Update i18n after state is updated
+        import('i18next').then(({ default: i18n }) => {
+          if (i18n.language !== language) {
+            i18n.changeLanguage(language)
+          }
+        })
+      },

      setGraphLayoutMaxIterations: (iterations: number) =>
        set({
@@ -136,7 +144,7 @@ const useSettingsStoreBase = create<SettingsState>()(
    {
      name: 'settings-storage',
      storage: createJSONStorage(() => localStorage),
-      version: 7,
+      version: 8,
      migrate: (state: any, version: number) => {
        if (version < 2) {
          state.showEdgeLabel = false
@@ -173,7 +181,11 @@ const useSettingsStoreBase = create<SettingsState>()(
        }
        if (version < 7) {
          state.graphQueryMaxDepth = 3
-          state.graphLayoutMaxIterations = 10
+          state.graphLayoutMaxIterations = 15
+        }
+        if (version < 8) {
+          state.graphMinDegree = 0
+          state.language = 'en'
        }
        return state
      }
--- a/lightrag_webui/vite.config.ts
+++ b/lightrag_webui/vite.config.ts
@@ -27,7 +27,9 @@ export default defineConfig({
            target: import.meta.env.VITE_BACKEND_URL || 'http://localhost:9621',
            changeOrigin: true,
            rewrite: endpoint === '/api' ?
-              (path) => path.replace(/^\/api/, '') : undefined
+              (path) => path.replace(/^\/api/, '') :
+              endpoint === '/docs' || endpoint === '/openapi.json' ?
+                (path) => path : undefined
          }
        ])
      ) : {}