fix: SelectModelPopup scrolling behaviour (#5812)

* fix: focus the selected or the first item on searching

* refactor: remove unnecessary deferred values

* refactor: add a hook usePinnedModels for pinned models

* refactor: make the definition more consistent with other popups

* refactor: improve state management, improve scrolling behaviour

* fix: avoid potential modulo-by-zero

* fix: type error

* fix: async loading pinned models

src/renderer/src/components/Popups/SelectModelPopup/hook.ts

@@ -0,0 +1,41 @@
+import { useMemo, useReducer } from 'react'
+
+import { initialScrollState, scrollReducer } from './reducer'
+import { FlatListItem, ScrollTrigger } from './types'
+
+/**
+ * 管理滚动和焦点状态的 hook
+ */
+export function useScrollState() {
+  const [state, dispatch] = useReducer(scrollReducer, initialScrollState)
+
+  const actions = useMemo(
+    () => ({
+      setFocusedItemKey: (key: string) => dispatch({ type: 'SET_FOCUSED_ITEM_KEY', payload: key }),
+      setScrollTrigger: (trigger: ScrollTrigger) => dispatch({ type: 'SET_SCROLL_TRIGGER', payload: trigger }),
+      setLastScrollOffset: (offset: number) => dispatch({ type: 'SET_LAST_SCROLL_OFFSET', payload: offset }),
+      setStickyGroup: (group: FlatListItem | null) => dispatch({ type: 'SET_STICKY_GROUP', payload: group }),
+      setIsMouseOver: (isMouseOver: boolean) => dispatch({ type: 'SET_IS_MOUSE_OVER', payload: isMouseOver }),
+      focusNextItem: (modelItems: FlatListItem[], step: number) =>
+        dispatch({ type: 'FOCUS_NEXT_ITEM', payload: { modelItems, step } }),
+      focusPage: (modelItems: FlatListItem[], currentIndex: number, step: number) =>
+        dispatch({ type: 'FOCUS_PAGE', payload: { modelItems, currentIndex, step } }),
+      searchChanged: (searchText: string) => dispatch({ type: 'SEARCH_CHANGED', payload: { searchText } }),
+      updateOnListChange: (modelItems: FlatListItem[]) =>
+        dispatch({ type: 'UPDATE_ON_LIST_CHANGE', payload: { modelItems } }),
+      initScroll: () => dispatch({ type: 'INIT_SCROLL' })
+    }),
+    []
+  )
+
+  return {
+    // 状态
+    focusedItemKey: state.focusedItemKey,
+    scrollTrigger: state.scrollTrigger,
+    lastScrollOffset: state.lastScrollOffset,
+    stickyGroup: state.stickyGroup,
+    isMouseOver: state.isMouseOver,
+    // 操作
+    ...actions
+  }
+}

src/renderer/src/components/Popups/SelectModelPopup/index.ts

@@ -0,0 +1,3 @@
+import { SelectModelPopup } from './popup'
+
+export default SelectModelPopup

src/renderer/src/components/Popups/SelectModelPopup/popup.tsx

@@ -1,7 +1,9 @@
 import { PushpinOutlined } from '@ant-design/icons'
+import { HStack } from '@renderer/components/Layout'
+import ModelTagsWithLabel from '@renderer/components/ModelTagsWithLabel'
 import { TopView } from '@renderer/components/TopView'
 import { getModelLogo, isEmbeddingModel, isRerankModel } from '@renderer/config/models'
-import db from '@renderer/databases'
+import { usePinnedModels } from '@renderer/hooks/usePinnedModels'
 import { useProviders } from '@renderer/hooks/useProvider'
 import { getModelUniqId } from '@renderer/services/ModelService'
 import { Model } from '@renderer/types'
@@ -15,101 +17,61 @@ import { useTranslation } from 'react-i18next'
 import { FixedSizeList } from 'react-window'
 import styled from 'styled-components'
 
-import { HStack } from '../Layout'
-import ModelTagsWithLabel from '../ModelTagsWithLabel'
+import { useScrollState } from './hook'
+import { FlatListItem } from './types'
 
 const PAGE_SIZE = 9
 const ITEM_HEIGHT = 36
 
-// 列表项类型，组名也作为列表项
-type ListItemType = 'group' | 'model'
-
-// 滚动触发来源类型
-type ScrollTrigger = 'initial' | 'search' | 'keyboard' | 'none'
-
-// 扁平化列表项接口
-interface FlatListItem {
-  key: string
-  type: ListItemType
-  icon?: React.ReactNode
-  name: React.ReactNode
-  tags?: React.ReactNode
-  model?: Model
-  isPinned?: boolean
-  isSelected?: boolean
-}
-
-interface Props {
+interface PopupParams {
   model?: Model
 }
 
-interface PopupContainerProps extends Props {
+interface Props extends PopupParams {
   resolve: (value: Model | undefined) => void
 }
 
-const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
+const PopupContainer: React.FC<Props> = ({ model, resolve }) => {
   const { t } = useTranslation()
   const { providers } = useProviders()
+  const { pinnedModels, togglePinnedModel, loading: loadingPinnedModels } = usePinnedModels()
   const [open, setOpen] = useState(true)
   const inputRef = useRef<InputRef>(null)
   const listRef = useRef<FixedSizeList>(null)
   const [_searchText, setSearchText] = useState('')
   const searchText = useDeferredValue(_searchText)
-  const [isMouseOver, setIsMouseOver] = useState(false)
-  const [pinnedModels, setPinnedModels] = useState<string[]>([])
-  const [_focusedItemKey, setFocusedItemKey] = useState<string>('')
-  const focusedItemKey = useDeferredValue(_focusedItemKey)
-  const [_stickyGroup, setStickyGroup] = useState<FlatListItem | null>(null)
-  const stickyGroup = useDeferredValue(_stickyGroup)
-  const firstGroupRef = useRef<FlatListItem | null>(null)
-  const scrollTriggerRef = useRef<ScrollTrigger>('initial')
-  const lastScrollOffsetRef = useRef(0)
 
   // 当前选中的模型ID
   const currentModelId = model ? getModelUniqId(model) : ''
 
-  // 加载置顶模型列表
-  useEffect(() => {
-    const loadPinnedModels = async () => {
-      const setting = await db.settings.get('pinned:models')
-      const savedPinnedModels = setting?.value || []
+  // 管理滚动和焦点状态
+  const {
+    focusedItemKey,
+    scrollTrigger,
+    lastScrollOffset,
+    stickyGroup: _stickyGroup,
+    isMouseOver,
+    setFocusedItemKey,
+    setScrollTrigger,
+    setLastScrollOffset,
+    setStickyGroup,
+    setIsMouseOver,
+    focusNextItem,
+    focusPage,
+    searchChanged,
+    updateOnListChange,
+    initScroll
+  } = useScrollState()
 
-      // Filter out invalid pinned models
-      const allModelIds = providers.flatMap((p) => p.models || []).map((m) => getModelUniqId(m))
-      const validPinnedModels = savedPinnedModels.filter((id) => allModelIds.includes(id))
-
-      // Update storage if there were invalid models
-      if (validPinnedModels.length !== savedPinnedModels.length) {
-        await db.settings.put({ id: 'pinned:models', value: validPinnedModels })
-      }
-
-      setPinnedModels(sortBy(validPinnedModels))
-    }
-
-    try {
-      loadPinnedModels()
-    } catch (error) {
-      console.error('Failed to load pinned models', error)
-      setPinnedModels([])
-    }
-  }, [providers])
+  const stickyGroup = useDeferredValue(_stickyGroup)
+  const firstGroupRef = useRef<FlatListItem | null>(null)
 
   const togglePin = useCallback(
     async (modelId: string) => {
-      const newPinnedModels = pinnedModels.includes(modelId)
-        ? pinnedModels.filter((id) => id !== modelId)
-        : [...pinnedModels, modelId]
-
-      try {
-        await db.settings.put({ id: 'pinned:models', value: newPinnedModels })
-        setPinnedModels(sortBy(newPinnedModels))
-        // Pin操作不触发滚动
-        scrollTriggerRef.current = 'none'
-      } catch (error) {
-        console.error('Failed to update pinned models', error)
-      }
+      await togglePinnedModel(modelId)
+      setScrollTrigger('none') // pin操作不触发滚动
     },
-    [pinnedModels]
+    [togglePinnedModel, setScrollTrigger]
   )
 
   // 根据输入的文本筛选模型
@@ -222,6 +184,16 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
     return items
   }, [providers, getFilteredModels, pinnedModels, searchText, t, createModelItem])
 
+  // 获取可选择的模型项（过滤掉分组标题）
+  const modelItems = useMemo(() => {
+    return listItems.filter((item) => item.type === 'model')
+  }, [listItems])
+
+  // 当搜索文本变化时更新滚动触发器
+  useEffect(() => {
+    searchChanged(searchText)
+  }, [searchText, searchChanged])
+
   // 基于滚动位置更新sticky分组标题
   const updateStickyGroup = useCallback(
     (scrollOffset?: number) => {
@@ -231,7 +203,7 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
       }
 
       // 基于滚动位置计算当前可见的第一个项的索引
-      const estimatedIndex = Math.floor((scrollOffset ?? lastScrollOffsetRef.current) / ITEM_HEIGHT)
+      const estimatedIndex = Math.floor((scrollOffset ?? lastScrollOffset) / ITEM_HEIGHT)
 
       // 从该索引向前查找最近的分组标题
       for (let i = estimatedIndex - 1; i >= 0; i--) {
@@ -242,9 +214,9 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
       }
 
       // 找不到则使用第一个分组标题
-      setStickyGroup(firstGroupRef.current ?? null)
+      setStickyGroup(firstGroupRef.current)
     },
-    [listItems]
+    [listItems, lastScrollOffset, setStickyGroup]
   )
 
   // 在listItems变化时更新sticky group
@@ -255,67 +227,46 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
   // 处理列表滚动事件，更新lastScrollOffset并更新sticky分组
   const handleScroll = useCallback(
     ({ scrollOffset }) => {
-      lastScrollOffsetRef.current = scrollOffset
+      setLastScrollOffset(scrollOffset)
       updateStickyGroup(scrollOffset)
     },
-    [updateStickyGroup]
+    [updateStickyGroup, setLastScrollOffset]
   )
 
-  // 获取可选择的模型项（过滤掉分组标题）
-  const modelItems = useMemo(() => {
-    return listItems.filter((item) => item.type === 'model')
-  }, [listItems])
-
-  // 搜索文本变化时设置滚动来源
+  // 在列表项更新时，更新焦点项
   useEffect(() => {
-    if (searchText.trim() !== '') {
-      scrollTriggerRef.current = 'search'
-      setFocusedItemKey('')
-    }
-  }, [searchText])
-
-  // 设置初始聚焦项以触发滚动
-  useEffect(() => {
-    if (scrollTriggerRef.current === 'initial' || scrollTriggerRef.current === 'search') {
-      const selectedItem = modelItems.find((item) => item.isSelected)
-      if (selectedItem) {
-        setFocusedItemKey(selectedItem.key)
-      } else if (scrollTriggerRef.current === 'initial' && modelItems.length > 0) {
-        setFocusedItemKey(modelItems[0].key)
-      }
-      // 其余情况不设置focusedItemKey
-    }
-  }, [modelItems])
+    updateOnListChange(modelItems)
+  }, [modelItems, updateOnListChange])
 
   // 滚动到聚焦项
   useEffect(() => {
-    if (scrollTriggerRef.current === 'none' || !focusedItemKey) return
+    if (scrollTrigger === 'none' || !focusedItemKey) return
 
     const index = listItems.findIndex((item) => item.key === focusedItemKey)
     if (index < 0) return
 
     // 根据触发源决定滚动对齐方式
-    const alignment = scrollTriggerRef.current === 'keyboard' ? 'auto' : 'center'
+    const alignment = scrollTrigger === 'keyboard' ? 'auto' : 'center'
     listRef.current?.scrollToItem(index, alignment)
 
     // 滚动后重置触发器
-    scrollTriggerRef.current = 'none'
-  }, [focusedItemKey, listItems])
+    setScrollTrigger('none')
+  }, [focusedItemKey, scrollTrigger, listItems, setScrollTrigger])
 
   const handleItemClick = useCallback(
     (item: FlatListItem) => {
       if (item.type === 'model') {
-        scrollTriggerRef.current = 'none'
+        setScrollTrigger('initial')
         resolve(item.model)
         setOpen(false)
       }
     },
-    [resolve]
+    [resolve, setScrollTrigger]
   )
 
   // 处理键盘导航
-  useEffect(() => {
-    const handleKeyDown = (e: KeyboardEvent) => {
+  const handleKeyDown = useCallback(
+    (e: KeyboardEvent) => {
       if (!open) return
 
       if (modelItems.length === 0) {
@@ -329,43 +280,21 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
         setIsMouseOver(false)
       }
 
-      const getCurrentIndex = (currentKey: string) => {
-        const currentIndex = modelItems.findIndex((item) => item.key === currentKey)
-        return currentIndex < 0 ? 0 : currentIndex
-      }
+      const currentIndex = modelItems.findIndex((item) => item.key === focusedItemKey)
+      const normalizedIndex = currentIndex < 0 ? 0 : currentIndex
 
       switch (e.key) {
         case 'ArrowUp':
-          scrollTriggerRef.current = 'keyboard'
-          setFocusedItemKey((prev) => {
-            const currentIndex = getCurrentIndex(prev)
-            const nextIndex = (currentIndex - 1 + modelItems.length) % modelItems.length
-            return modelItems[nextIndex].key
-          })
+          focusNextItem(modelItems, -1)
           break
         case 'ArrowDown':
-          scrollTriggerRef.current = 'keyboard'
-          setFocusedItemKey((prev) => {
-            const currentIndex = getCurrentIndex(prev)
-            const nextIndex = (currentIndex + 1) % modelItems.length
-            return modelItems[nextIndex].key
-          })
+          focusNextItem(modelItems, 1)
           break
         case 'PageUp':
-          scrollTriggerRef.current = 'keyboard'
-          setFocusedItemKey((prev) => {
-            const currentIndex = getCurrentIndex(prev)
-            const nextIndex = Math.max(currentIndex - PAGE_SIZE, 0)
-            return modelItems[nextIndex].key
-          })
+          focusPage(modelItems, normalizedIndex, -PAGE_SIZE)
           break
         case 'PageDown':
-          scrollTriggerRef.current = 'keyboard'
-          setFocusedItemKey((prev) => {
-            const currentIndex = getCurrentIndex(prev)
-            const nextIndex = Math.min(currentIndex + PAGE_SIZE, modelItems.length - 1)
-            return modelItems[nextIndex].key
-          })
+          focusPage(modelItems, normalizedIndex, PAGE_SIZE)
           break
         case 'Enter':
           if (focusedItemKey) {
@@ -377,34 +306,47 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
           break
         case 'Escape':
           e.preventDefault()
-          scrollTriggerRef.current = 'none'
+          setScrollTrigger('none')
           setOpen(false)
           resolve(undefined)
           break
       }
-    }
-
-    window.addEventListener('keydown', handleKeyDown)
-    return () => window.removeEventListener('keydown', handleKeyDown)
-  }, [focusedItemKey, modelItems, handleItemClick, open, resolve])
-
-  const onCancel = useCallback(() => {
-    scrollTriggerRef.current = 'none'
-    setOpen(false)
-  }, [])
-
-  const onClose = useCallback(async () => {
-    scrollTriggerRef.current = 'none'
-    resolve(undefined)
-    SelectModelPopup.hide()
-  }, [resolve])
+    },
+    [
+      focusedItemKey,
+      modelItems,
+      handleItemClick,
+      open,
+      resolve,
+      setIsMouseOver,
+      focusNextItem,
+      focusPage,
+      setScrollTrigger
+    ]
+  )
 
   useEffect(() => {
-    if (!open) return
+    window.addEventListener('keydown', handleKeyDown)
+    return () => window.removeEventListener('keydown', handleKeyDown)
+  }, [handleKeyDown])
+
+  const onCancel = useCallback(() => {
+    setScrollTrigger('initial')
+    setOpen(false)
+  }, [setScrollTrigger])
+
+  const onClose = useCallback(async () => {
+    setScrollTrigger('initial')
+    resolve(undefined)
+    SelectModelPopup.hide()
+  }, [resolve, setScrollTrigger])
+
+  // 初始化焦点和滚动位置
+  useEffect(() => {
+    if (!open || loadingPinnedModels) return
     setTimeout(() => inputRef.current?.focus(), 0)
-    scrollTriggerRef.current = 'initial'
-    lastScrollOffsetRef.current = 0
-  }, [open])
+    initScroll()
+  }, [open, initScroll, loadingPinnedModels])
 
   const RowData = useMemo(
     (): VirtualizedRowData => ({
@@ -415,7 +357,7 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
       handleItemClick,
       togglePin
     }),
-    [stickyGroup, focusedItemKey, handleItemClick, listItems, togglePin]
+    [stickyGroup, focusedItemKey, handleItemClick, listItems, togglePin, setFocusedItemKey]
   )
 
   const listHeight = useMemo(() => {
@@ -470,7 +412,7 @@ const PopupContainer: React.FC<PopupContainerProps> = ({ model, resolve }) => {
       <Divider style={{ margin: 0, marginTop: 4, borderBlockStartWidth: 0.5 }} />
 
       {listItems.length > 0 ? (
-        <ListContainer onMouseMove={() => setIsMouseOver(true)}>
+        <ListContainer onMouseMove={() => !isMouseOver && setIsMouseOver(true)}>
           {/* Sticky Group Banner，它会替换第一个分组名称 */}
           <StickyGroupBanner>{stickyGroup?.name}</StickyGroupBanner>
           <FixedSizeList
@@ -685,14 +627,26 @@ const PinIconWrapper = styled.div.attrs({ className: 'pin-icon' })<{ $isPinned?:
   }
 `
 
-export default class SelectModelPopup {
+const TopViewKey = 'SelectModelPopup'
+
+export class SelectModelPopup {
+  static topviewId = 0
   static hide() {
-    TopView.hide('SelectModelPopup')
+    TopView.hide(TopViewKey)
   }
 
-  static show(params: Props) {
+  static show(params: PopupParams) {
     return new Promise<Model | undefined>((resolve) => {
-      TopView.show(<PopupContainer {...params} resolve={resolve} />, 'SelectModelPopup')
+      TopView.show(
+        <PopupContainer
+          {...params}
+          resolve={(v) => {
+            resolve(v)
+            TopView.hide(TopViewKey)
+          }}
+        />,
+        TopViewKey
+      )
     })
   }
 }

src/renderer/src/components/Popups/SelectModelPopup/reducer.ts

@@ -0,0 +1,109 @@
+import { ScrollAction, ScrollState } from './types'
+
+/**
+ * 初始状态
+ */
+export const initialScrollState: ScrollState = {
+  focusedItemKey: '',
+  scrollTrigger: 'initial',
+  lastScrollOffset: 0,
+  stickyGroup: null,
+  isMouseOver: false
+}
+
+/**
+ * 滚动状态的 reducer，用于避免复杂依赖可能带来的状态更新问题
+ * @param state 当前状态
+ * @param action 动作
+ * @returns 新的状态
+ */
+export const scrollReducer = (state: ScrollState, action: ScrollAction): ScrollState => {
+  switch (action.type) {
+    case 'SET_FOCUSED_ITEM_KEY':
+      return { ...state, focusedItemKey: action.payload }
+
+    case 'SET_SCROLL_TRIGGER':
+      return { ...state, scrollTrigger: action.payload }
+
+    case 'SET_LAST_SCROLL_OFFSET':
+      return { ...state, lastScrollOffset: action.payload }
+
+    case 'SET_STICKY_GROUP':
+      return { ...state, stickyGroup: action.payload }
+
+    case 'SET_IS_MOUSE_OVER':
+      return { ...state, isMouseOver: action.payload }
+
+    case 'FOCUS_NEXT_ITEM': {
+      const { modelItems, step } = action.payload
+
+      if (modelItems.length === 0) {
+        return {
+          ...state,
+          focusedItemKey: '',
+          scrollTrigger: 'keyboard'
+        }
+      }
+
+      const currentIndex = modelItems.findIndex((item) => item.key === state.focusedItemKey)
+      const nextIndex = (currentIndex < 0 ? 0 : currentIndex + step + modelItems.length) % modelItems.length
+
+      return {
+        ...state,
+        focusedItemKey: modelItems[nextIndex].key,
+        scrollTrigger: 'keyboard'
+      }
+    }
+
+    case 'FOCUS_PAGE': {
+      const { modelItems, currentIndex, step } = action.payload
+      const nextIndex = Math.max(0, Math.min(currentIndex + step, modelItems.length - 1))
+
+      return {
+        ...state,
+        focusedItemKey: modelItems.length > 0 ? modelItems[nextIndex].key : '',
+        scrollTrigger: 'keyboard'
+      }
+    }
+
+    case 'SEARCH_CHANGED':
+      return {
+        ...state,
+        scrollTrigger: action.payload.searchText ? 'search' : 'initial'
+      }
+
+    case 'UPDATE_ON_LIST_CHANGE': {
+      const { modelItems } = action.payload
+
+      // 在列表变化时尝试聚焦一个模型：
+      // - 如果是 initial 状态，先尝试聚焦当前选中的模型
+      // - 如果是 search 状态，尝试聚焦第一个模型
+      let newFocusedKey = ''
+      if (state.scrollTrigger === 'initial' || state.scrollTrigger === 'search') {
+        const selectedItem = modelItems.find((item) => item.isSelected)
+        if (selectedItem && state.scrollTrigger === 'initial') {
+          newFocusedKey = selectedItem.key
+        } else if (modelItems.length > 0) {
+          newFocusedKey = modelItems[0].key
+        }
+      } else {
+        newFocusedKey = state.focusedItemKey
+      }
+
+      return {
+        ...state,
+        focusedItemKey: newFocusedKey
+      }
+    }
+
+    case 'INIT_SCROLL':
+      return {
+        ...state,
+        scrollTrigger: 'initial',
+        lastScrollOffset: 0
+      }
+
+    default:
+      return state
+  }
+}

src/renderer/src/components/Popups/SelectModelPopup/types.ts

@@ -0,0 +1,42 @@
+import { Model } from '@renderer/types'
+import { ReactNode } from 'react'
+
+// 列表项类型，组名也作为列表项
+export type ListItemType = 'group' | 'model'
+
+// 滚动触发来源类型
+export type ScrollTrigger = 'initial' | 'search' | 'keyboard' | 'none'
+
+// 扁平化列表项接口
+export interface FlatListItem {
+  key: string
+  type: ListItemType
+  icon?: ReactNode
+  name: ReactNode
+  tags?: ReactNode
+  model?: Model
+  isPinned?: boolean
+  isSelected?: boolean
+}
+
+// 滚动和焦点相关的状态类型
+export interface ScrollState {
+  focusedItemKey: string
+  scrollTrigger: ScrollTrigger
+  lastScrollOffset: number
+  stickyGroup: FlatListItem | null
+  isMouseOver: boolean
+}
+
+// 滚动和焦点相关的 action 类型
+export type ScrollAction =
+  | { type: 'SET_FOCUSED_ITEM_KEY'; payload: string }
+  | { type: 'SET_SCROLL_TRIGGER'; payload: ScrollTrigger }
+  | { type: 'SET_LAST_SCROLL_OFFSET'; payload: number }
+  | { type: 'SET_STICKY_GROUP'; payload: FlatListItem | null }
+  | { type: 'SET_IS_MOUSE_OVER'; payload: boolean }
+  | { type: 'FOCUS_NEXT_ITEM'; payload: { modelItems: FlatListItem[]; step: number } }
+  | { type: 'FOCUS_PAGE'; payload: { modelItems: FlatListItem[]; currentIndex: number; step: number } }
+  | { type: 'SEARCH_CHANGED'; payload: { searchText: string } }
+  | { type: 'UPDATE_ON_LIST_CHANGE'; payload: { modelItems: FlatListItem[] } }
+  | { type: 'INIT_SCROLL'; payload?: void }

src/renderer/src/hooks/usePinnedModels.ts

@@ -0,0 +1,63 @@
+import db from '@renderer/databases'
+import { getModelUniqId } from '@renderer/services/ModelService'
+import { sortBy } from 'lodash'
+import { useCallback, useEffect, useState } from 'react'
+
+import { useProviders } from './useProvider'
+
+export const usePinnedModels = () => {
+  const [pinnedModels, setPinnedModels] = useState<string[]>([])
+  const [loading, setLoading] = useState(true)
+  const { providers } = useProviders()
+
+  useEffect(() => {
+    const loadPinnedModels = async () => {
+      setLoading(true)
+      const setting = await db.settings.get('pinned:models')
+      const savedPinnedModels = setting?.value || []
+
+      // Filter out invalid pinned models
+      const allModelIds = providers.flatMap((p) => p.models || []).map((m) => getModelUniqId(m))
+      const validPinnedModels = savedPinnedModels.filter((id) => allModelIds.includes(id))
+
+      // Update storage if there were invalid models
+      if (validPinnedModels.length !== savedPinnedModels.length) {
+        await db.settings.put({ id: 'pinned:models', value: validPinnedModels })
+      }
+
+      setPinnedModels(sortBy(validPinnedModels))
+      setLoading(false)
+    }
+
+    loadPinnedModels().catch((error) => {
+      console.error('Failed to load pinned models', error)
+      setPinnedModels([])
+      setLoading(false)
+    })
+  }, [providers])
+
+  const updatePinnedModels = useCallback(async (models: string[]) => {
+    await db.settings.put({ id: 'pinned:models', value: models })
+    setPinnedModels(sortBy(models))
+  }, [])
+
+  /**
+   * Toggle a single pinned model
+   * @param modelId - The ID string of the model to toggle
+   */
+  const togglePinnedModel = useCallback(
+    async (modelId: string) => {
+      try {
+        const newPinnedModels = pinnedModels.includes(modelId)
+          ? pinnedModels.filter((id) => id !== modelId)
+          : [...pinnedModels, modelId]
+        await updatePinnedModels(newPinnedModels)
+      } catch (error) {
+        console.error('Failed to toggle pinned model', error)
+      }
+    },
+    [pinnedModels, updatePinnedModels]
+  )
+
+  return { pinnedModels, updatePinnedModels, togglePinnedModel, loading }
+}