feat: add mobile sidebar state management to useBookmarksUI

src/hooks/useBookmarksUI.ts

@@ -3,12 +3,15 @@ import { NostrEvent } from 'nostr-tools'
 import { HighlightVisibility } from '../components/HighlightsPanel'
 import { UserSettings } from '../services/settingsService'
 import { ViewMode } from '../components/Bookmarks'
+import { useIsMobile } from './useMediaQuery'
 
 interface UseBookmarksUIParams {
   settings: UserSettings
 }
 
 export const useBookmarksUI = ({ settings }: UseBookmarksUIParams) => {
+  const isMobile = useIsMobile()
+  const [isSidebarOpen, setIsSidebarOpen] = useState(false)
   const [isCollapsed, setIsCollapsed] = useState(true)
   const [isHighlightsCollapsed, setIsHighlightsCollapsed] = useState(true)
   const [viewMode, setViewMode] = useState<ViewMode>('compact')
@@ -23,6 +26,16 @@ export const useBookmarksUI = ({ settings }: UseBookmarksUIParams) => {
     mine: true
   })
 
+  // Auto-collapse sidebar on mobile based on settings
+  useEffect(() => {
+    const autoCollapse = settings.autoCollapseSidebarOnMobile !== false
+    if (isMobile && autoCollapse) {
+      setIsSidebarOpen(false)
+    } else if (!isMobile) {
+      setIsSidebarOpen(true)
+    }
+  }, [isMobile, settings.autoCollapseSidebarOnMobile])
+
   // Apply UI settings
   useEffect(() => {
     if (settings.defaultViewMode) setViewMode(settings.defaultViewMode)
@@ -34,7 +47,15 @@ export const useBookmarksUI = ({ settings }: UseBookmarksUIParams) => {
     })
   }, [settings])
 
+  const toggleSidebar = () => {
+    setIsSidebarOpen(prev => !prev)
+  }
+
   return {
+    isMobile,
+    isSidebarOpen,
+    setIsSidebarOpen,
+    toggleSidebar,
     isCollapsed,
     setIsCollapsed,
     isHighlightsCollapsed,