fix hashtags

src/PageManager.tsx

@@ -2,7 +2,7 @@ import Sidebar from '@/components/Sidebar'
 import { Button } from '@/components/ui/button'
 import { cn } from '@/lib/utils'
 import { ChevronLeft } from 'lucide-react'
-import NoteListPage from '@/pages/primary/NoteListPage'
+import NoteListPage from '@/pages/secondary/NoteListPage'
 import HomePage from '@/pages/secondary/HomePage'
 import NotePage from '@/pages/secondary/NotePage'
 import SettingsPage from '@/pages/secondary/SettingsPage'
@@ -90,8 +90,8 @@ const PrimaryPageContext = createContext<TPrimaryPageContext | undefined>(undefi
 const SecondaryPageContext = createContext<TSecondaryPageContext | undefined>(undefined)
 
 const PrimaryNoteViewContext = createContext<{
-  setPrimaryNoteView: (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile') => void
-  primaryViewType: 'note' | 'settings' | 'settings-sub' | 'profile' | null
+  setPrimaryNoteView: (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag') => void
+  primaryViewType: 'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag' | null
 } | undefined>(undefined)
 
 export function usePrimaryPage() {
@@ -183,6 +183,31 @@ export function useSmartProfileNavigation() {
   return { navigateToProfile }
 }
 
+// Custom hook for intelligent hashtag navigation
+export function useSmartHashtagNavigation() {
+  const { showRecommendedRelaysPanel } = useUserPreferences()
+  const { push: pushSecondary } = useSecondaryPage()
+  const { setPrimaryNoteView } = usePrimaryNoteView()
+  
+  const navigateToHashtag = (url: string) => {
+    if (!showRecommendedRelaysPanel) {
+      // When right panel is hidden, show hashtag feed in primary area
+      // Extract hashtag from URL (e.g., "/notes?t=hashtag" -> "hashtag")
+      const urlObj = new URL(url, window.location.origin)
+      const hashtag = urlObj.searchParams.get('t')
+      if (hashtag) {
+        window.history.replaceState(null, '', url)
+        setPrimaryNoteView(<NoteListPage index={0} hideTitlebar={true} />, 'hashtag')
+      }
+    } else {
+      // Normal behavior - use secondary navigation
+      pushSecondary(url)
+    }
+  }
+  
+  return { navigateToHashtag }
+}
+
 // Custom hook for intelligent settings navigation
 export function useSmartSettingsNavigation() {
   const { showRecommendedRelaysPanel } = useUserPreferences()
@@ -242,8 +267,8 @@ function MainContentArea({
   currentPrimaryPage: TPrimaryPageName
   secondaryStack: { index: number; component: ReactNode }[]
   primaryNoteView: ReactNode | null
-  primaryViewType: 'note' | 'settings' | 'settings-sub' | 'profile' | null
-  setPrimaryNoteView: (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile') => void
+  primaryViewType: 'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag' | null
+  setPrimaryNoteView: (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag') => void
 }) {
   const { showRecommendedRelaysPanel } = useUserPreferences()
   
@@ -270,7 +295,8 @@ function MainContentArea({
                   <div className="truncate text-lg font-semibold">
                     {primaryViewType === 'settings' ? 'Settings' : 
                      primaryViewType === 'settings-sub' ? 'Settings' : 
-                     primaryViewType === 'profile' ? 'Back' : 'Note'}
+                     primaryViewType === 'profile' ? 'Back' : 
+                     primaryViewType === 'hashtag' ? 'Hashtag' : 'Note'}
                   </div>
                 </Button>
               </div>
@@ -332,10 +358,10 @@ export function PageManager({ maxStackSize = 5 }: { maxStackSize?: number }) {
   ])
   const [secondaryStack, setSecondaryStack] = useState<TStackItem[]>([])
   const [primaryNoteView, setPrimaryNoteViewState] = useState<ReactNode | null>(null)
-  const [primaryViewType, setPrimaryViewType] = useState<'note' | 'settings' | 'settings-sub' | 'profile' | null>(null)
+  const [primaryViewType, setPrimaryViewType] = useState<'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag' | null>(null)
   const [savedPrimaryPage, setSavedPrimaryPage] = useState<TPrimaryPageName | null>(null)
   
-  const setPrimaryNoteView = (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile') => {
+  const setPrimaryNoteView = (view: ReactNode | null, type?: 'note' | 'settings' | 'settings-sub' | 'profile' | 'hashtag') => {
     if (view && !primaryNoteView) {
       // Saving current primary page before showing overlay
       setSavedPrimaryPage(currentPrimaryPage)

src/components/Embedded/EmbeddedHashtag.tsx

@@ -1,14 +1,22 @@
 import { toNoteList } from '@/lib/link'
-import { SecondaryPageLink } from '@/PageManager'
+import { useSmartHashtagNavigation } from '@/PageManager'
 
 export function EmbeddedHashtag({ hashtag }: { hashtag: string }) {
+  const { navigateToHashtag } = useSmartHashtagNavigation()
+  
+  const handleClick = (e: React.MouseEvent) => {
+    e.stopPropagation()
+    e.preventDefault()
+    const url = toNoteList({ hashtag: hashtag.replace('#', '') })
+    navigateToHashtag(url)
+  }
+  
   return (
-    <SecondaryPageLink
-      className="text-primary hover:underline"
-      to={toNoteList({ hashtag: hashtag.replace('#', '') })}
-      onClick={(e) => e.stopPropagation()}
+    <button
+      className="text-primary hover:underline cursor-pointer"
+      onClick={handleClick}
     >
       {hashtag}
-    </SecondaryPageLink>
+    </button>
   )
 }

src/components/TrendingNotes/index.tsx

@@ -27,29 +27,30 @@ let cachedCustomEvents: {
 // Flag to prevent concurrent initialization
 let isInitializing = false
 
+type TrendingTab = 'band' | 'relays' | 'bookmarks' | 'hashtags'
+type SortOrder = 'newest' | 'oldest' | 'most-popular' | 'least-popular'
+type BookmarkFilter = 'yours' | 'follows'
+type HashtagFilter = 'popular'
+
 export default function TrendingNotes() {
   const { t } = useTranslation()
   const { isEventDeleted } = useDeletedEvent()
   const { hideUntrustedNotes, isUserTrusted } = useUserTrust()
-  const { pubkey, relayList, bookmarkListEvent, interestListEvent } = useNostr()
+  const { pubkey, relayList, bookmarkListEvent } = useNostr()
   const { favoriteRelays } = useFavoriteRelays()
   const { zapReplyThreshold } = useZap()
   const [trendingNotes, setTrendingNotes] = useState<NostrEvent[]>([])
   const [showCount, setShowCount] = useState(10)
   const [loading, setLoading] = useState(true)
+  const [activeTab, setActiveTab] = useState<TrendingTab>('band')
+  const [sortOrder, setSortOrder] = useState<SortOrder>('most-popular')
+  const [bookmarkFilter] = useState<BookmarkFilter>('yours')
+  const [hashtagFilter] = useState<HashtagFilter>('popular')
+  const [selectedHashtag, setSelectedHashtag] = useState<string | null>(null)
+  const [popularHashtags, setPopularHashtags] = useState<string[]>([])
+  const [cacheEvents, setCacheEvents] = useState<NostrEvent[]>([])
   const bottomRef = useRef<HTMLDivElement>(null)
 
-  // Extract hashtags from interest list (kind 10015)
-  const hashtags = useMemo(() => {
-    if (!interestListEvent) return []
-    const tags: string[] = []
-    interestListEvent.tags.forEach((tag) => {
-      if (tag[0] === 't' && tag[1]) {
-        tags.push(tag[1])
-      }
-    })
-    return tags
-  }, [interestListEvent])
 
   // Extract event IDs from bookmark and pin lists (kinds 10003 and 10001)
   const listEventIds = useMemo(() => {
@@ -70,6 +71,108 @@ export default function TrendingNotes() {
     return eventIds
   }, [bookmarkListEvent])
 
+  // Fetch bookmark/pin lists from follows
+  const [followsBookmarkEventIds, setFollowsBookmarkEventIds] = useState<string[]>([])
+  
+  useEffect(() => {
+    const fetchFollowsBookmarks = async () => {
+      if (!pubkey) return
+      
+      try {
+        // Get follows list
+        const followPubkeys = await client.fetchFollowings(pubkey)
+        if (!followPubkeys || followPubkeys.length === 0) return
+        
+        // Fetch bookmark and pin lists from follows
+        const bookmarkPromises = followPubkeys.map(async (followPubkey: string) => {
+          try {
+            const [bookmarkList, pinList] = await Promise.all([
+              client.fetchBookmarkListEvent(followPubkey),
+              client.fetchPinListEvent(followPubkey)
+            ])
+            
+            const eventIds: string[] = []
+            if (bookmarkList) {
+              bookmarkList.tags.forEach(tag => {
+                if (tag[0] === 'e' && tag[1]) {
+                  eventIds.push(tag[1])
+                }
+              })
+            }
+            if (pinList) {
+              pinList.tags.forEach(tag => {
+                if (tag[0] === 'e' && tag[1]) {
+                  eventIds.push(tag[1])
+                }
+              })
+            }
+            return eventIds
+          } catch (error) {
+            console.error(`Error fetching bookmarks for ${followPubkey}:`, error)
+            return []
+          }
+        })
+        
+        const allEventIds = await Promise.all(bookmarkPromises)
+        const flattenedIds = allEventIds.flat()
+        setFollowsBookmarkEventIds(flattenedIds)
+      } catch (error) {
+        console.error('Error fetching follows bookmarks:', error)
+      }
+    }
+    
+    fetchFollowsBookmarks()
+  }, [pubkey])
+
+  // Calculate popular hashtags from cache events (all events from relays)
+  const calculatePopularHashtags = useMemo(() => {
+    console.log('[TrendingNotes] calculatePopularHashtags - cacheEvents.length:', cacheEvents.length)
+    if (cacheEvents.length === 0) {
+      return []
+    }
+    const hashtagCounts = new Map<string, number>()
+    let eventsWithHashtags = 0
+    
+    // For hashtag analysis, use all cache events
+    let eventsToAnalyze = cacheEvents
+    
+    eventsToAnalyze.forEach((event) => {
+      let hasAnyHashtag = false
+      
+      // Count hashtags from 't' tags
+      event.tags.forEach(tag => {
+        if (tag[0] === 't' && tag[1]) {
+          const hashtag = tag[1].toLowerCase()
+          hashtagCounts.set(hashtag, (hashtagCounts.get(hashtag) || 0) + 1)
+          hasAnyHashtag = true
+        }
+      })
+      
+      // Count hashtags from content (simple regex for #hashtag)
+      const contentHashtags = event.content.match(/#[a-zA-Z0-9_]+/g)
+      if (contentHashtags) {
+        contentHashtags.forEach(hashtag => {
+          const cleanHashtag = hashtag.slice(1).toLowerCase() // Remove #
+          hashtagCounts.set(cleanHashtag, (hashtagCounts.get(cleanHashtag) || 0) + 1)
+          hasAnyHashtag = true
+        })
+      }
+      
+      if (hasAnyHashtag) eventsWithHashtags++
+    })
+    
+    // Sort by count and return top 10
+    const result = Array.from(hashtagCounts.entries())
+      .sort(([, a], [, b]) => b - a)
+      .slice(0, 10)
+      .map(([hashtag]) => hashtag)
+    
+    console.log('[TrendingNotes] calculatePopularHashtags - found hashtags:', result)
+    console.log('[TrendingNotes] calculatePopularHashtags - eventsWithHashtags:', eventsWithHashtags)
+    
+    return result
+  }, [cacheEvents, activeTab, hashtagFilter, pubkey]) // Use cacheEvents as dependency
+
   // Get relays based on user login status
   const getRelays = useMemo(() => {
     const relays: string[] = []
@@ -94,12 +197,18 @@ export default function TrendingNotes() {
     return Array.from(new Set(normalized))
   }, [pubkey, favoriteRelays, relayList])
 
+  // Update popular hashtags when trending notes change
+  useEffect(() => {
+    console.log('[TrendingNotes] calculatePopularHashtags result:', calculatePopularHashtags)
+    setPopularHashtags(calculatePopularHashtags)
+  }, [calculatePopularHashtags])
+
+
   // Initialize cache only once on mount
   useEffect(() => {
     const initializeCache = async () => {
       // Prevent concurrent initialization
       if (isInitializing) {
-        console.log('[TrendingNotes] Already initializing, skipping')
         return
       }
       
@@ -107,18 +216,14 @@ export default function TrendingNotes() {
       
       // Check if cache is still valid
       if (cachedCustomEvents && (now - cachedCustomEvents.timestamp) < CACHE_DURATION) {
-        console.log('[TrendingNotes] Using existing cache')
         return
       }
 
       isInitializing = true
-      console.log('[TrendingNotes] Initializing cache from relays')
       const relays = getRelays
-      console.log('[TrendingNotes] Using', relays.length, 'relays:', relays)
       
       // Prevent running if we have no relays
       if (relays.length === 0) {
-        console.log('[TrendingNotes] No relays available, skipping cache initialization')
         return
       }
 
@@ -126,28 +231,48 @@ export default function TrendingNotes() {
         const allEvents: NostrEvent[] = []
         const twentyFourHoursAgo = Math.floor(Date.now() / 1000) - 24 * 60 * 60
         
-        // 1. Fetch top-level posts from last 24 hours - query each relay individually
-        const recentEventsPromises = relays.map(async (relay) => {
-          const events = await client.fetchEvents([relay], {
-            kinds: [1, 11, 30023, 9802, 20, 21, 22],
-            since: twentyFourHoursAgo,
-            limit: 500
+        // 1. Fetch top-level posts from last 24 hours - batch requests to avoid overwhelming relays
+        const batchSize = 3 // Process 3 relays at a time
+        const recentEvents: NostrEvent[] = []
+        
+        for (let i = 0; i < relays.length; i += batchSize) {
+          const batch = relays.slice(i, i + batchSize)
+          const batchPromises = batch.map(async (relay) => {
+            try {
+              const events = await client.fetchEvents([relay], {
+                kinds: [1, 11, 30023, 9802, 20, 21, 22],
+                since: twentyFourHoursAgo,
+                limit: 500
+              })
+              return events
+            } catch (error) {
+              console.warn(`[TrendingNotes] Error fetching from relay ${relay}:`, error)
+              return []
+            }
           })
-          return events
-        })
-        const recentEventsArrays = await Promise.all(recentEventsPromises)
-        const recentEvents = recentEventsArrays.flat()
-        console.log('[TrendingNotes] Fetched', recentEvents.length, 'recent events from', relays.length, 'relays')
+          
+          const batchResults = await Promise.all(batchPromises)
+          recentEvents.push(...batchResults.flat())
+          
+          // Add a small delay between batches to be respectful to relays
+          if (i + batchSize < relays.length) {
+            await new Promise(resolve => setTimeout(resolve, 100))
+          }
+        }
+        
         allEvents.push(...recentEvents)
 
-        // 2. Fetch events from bookmark/pin lists
+        // 2. Fetch events from bookmark/pin lists (with rate limiting)
         if (listEventIds.length > 0) {
-          const bookmarkPinEvents = await client.fetchEvents(relays, {
-            ids: listEventIds,
-            limit: 500
-          })
-          console.log('[TrendingNotes] Fetched', bookmarkPinEvents.length, 'events from bookmark/pin lists')
-          allEvents.push(...bookmarkPinEvents)
+          try {
+            const bookmarkPinEvents = await client.fetchEvents(relays, {
+              ids: listEventIds,
+              limit: 500
+            })
+            allEvents.push(...bookmarkPinEvents)
+          } catch (error) {
+            console.warn('[TrendingNotes] Error fetching bookmark/pin events:', error)
+          }
         }
 
         // 3. Fetch pin list if user is logged in
@@ -160,12 +285,15 @@ export default function TrendingNotes() {
                 .map(tag => tag[1])
               
               if (pinEventIds.length > 0) {
-                const pinEvents = await client.fetchEvents(relays, {
-                  ids: pinEventIds,
-                  limit: 500
-                })
-                console.log('[TrendingNotes] Fetched', pinEvents.length, 'events from pin list')
-                allEvents.push(...pinEvents)
+                try {
+                  const pinEvents = await client.fetchEvents(relays, {
+                    ids: pinEventIds,
+                    limit: 500
+                  })
+                  allEvents.push(...pinEvents)
+                } catch (error) {
+                  console.warn('[TrendingNotes] Error fetching pin events:', error)
+                }
               }
             }
           } catch (error) {
@@ -178,26 +306,60 @@ export default function TrendingNotes() {
           const eTags = event.tags.filter(t => t[0] === 'e')
           return eTags.length === 0
         })
-        console.log('[TrendingNotes] After filtering for top-level posts:', topLevelEvents.length, 'events')
 
-        // Fetch stats for events in batches
-        const eventsNeedingStats = topLevelEvents.filter(event => !noteStatsService.getNoteStats(event.id))
+        // Filter out NSFW content and content warnings
+        const filteredEvents = topLevelEvents.filter(event => {
+          // Check for NSFW in 't' tags
+          const hasNsfwTag = event.tags.some(tag => 
+            tag[0] === 't' && tag[1] && tag[1].toLowerCase() === 'nsfw'
+          )
+          
+          // Check for sensitive content tag
+          const hasSensitiveTag = event.tags.some(tag => 
+            tag[0] === 't' && tag[1] && tag[1].toLowerCase() === 'sensitive'
+          )
+          
+          // Check for #NSFW hashtag in content
+          const hasNsfwHashtag = event.content.toLowerCase().includes('#nsfw')
+          
+          // Check for content-warning tag (NIP-36)
+          const hasContentWarning = event.tags.some(tag => 
+            tag[0] === 'content-warning'
+          )
+          
+          // Check for L tag with content-warning namespace
+          const hasContentWarningL = event.tags.some(tag => 
+            tag[0] === 'L' && tag[1] && tag[1].toLowerCase() === 'content-warning'
+          )
+          
+          // Check for l tag with content-warning namespace
+          const hasContentWarningl = event.tags.some(tag => 
+            tag[0] === 'l' && tag[1] && tag[1].toLowerCase() === 'content-warning'
+          )
+          
+          // Filter out if any NSFW or content warning indicators are found
+          return !hasNsfwTag && !hasSensitiveTag && !hasNsfwHashtag && 
+                 !hasContentWarning && !hasContentWarningL && !hasContentWarningl
+        })
+
+        // Fetch stats for events in batches with longer delays
+        const eventsNeedingStats = filteredEvents.filter(event => !noteStatsService.getNoteStats(event.id))
         
         if (eventsNeedingStats.length > 0) {
-          const batchSize = 10
+          const batchSize = 5 // Reduced batch size
           for (let i = 0; i < eventsNeedingStats.length; i += batchSize) {
             const batch = eventsNeedingStats.slice(i, i + batchSize)
             await Promise.all(batch.map(event => 
               noteStatsService.fetchNoteStats(event, undefined).catch(() => {})
             ))
             if (i + batchSize < eventsNeedingStats.length) {
-              await new Promise(resolve => setTimeout(resolve, 200))
+              await new Promise(resolve => setTimeout(resolve, 500)) // Increased delay
             }
           }
         }
 
         // Score events
-        const scoredEvents = topLevelEvents.map((event) => {
+        const scoredEvents = filteredEvents.map((event) => {
           const stats = noteStatsService.getNoteStats(event.id)
           let score = 0
 
@@ -225,11 +387,22 @@ export default function TrendingNotes() {
         cachedCustomEvents = {
           events: scoredEvents,
           timestamp: now,
-          hashtags: hashtags.slice(),
+          hashtags: [],
           listEventIds: listEventIds.slice()
         }
 
-        console.log('[TrendingNotes] Cache initialized with', scoredEvents.length, 'events')
+        
+        // For hashtag analysis, we want ALL events with hashtags, not just trending ones
+        // So we'll store the unfiltered events that have hashtags
+        const eventsWithHashtags = filteredEvents.filter(event => {
+          const eventHashtags = event.tags
+            .filter(tag => tag[0] === 't' && tag[1])
+            .map(tag => tag[1].toLowerCase())
+          const contentHashtags = event.content.match(/#[a-zA-Z0-9_]+/g)?.map(h => h.slice(1).toLowerCase()) || []
+          return eventHashtags.length > 0 || contentHashtags.length > 0
+        })
+        
+        setCacheEvents(eventsWithHashtags)
       } catch (error) {
         console.error('[TrendingNotes] Error initializing cache:', error)
       } finally {
@@ -244,11 +417,46 @@ export default function TrendingNotes() {
 
   const filteredEvents = useMemo(() => {
     const idSet = new Set<string>()
-
-    return trendingNotes.slice(0, showCount).filter((evt) => {
+    
+    // Use appropriate data source based on tab and filter
+    let sourceEvents = trendingNotes
+    
+    if (activeTab === 'hashtags') {
+      // Always use cache events for hashtags tab - this contains ALL events with hashtags
+      sourceEvents = cacheEvents
+    }
+    
+    
+    let filtered = sourceEvents.filter((evt) => {
       if (isEventDeleted(evt)) return false
       if (hideUntrustedNotes && !isUserTrusted(evt.pubkey)) return false
 
+      // Filter based on active tab
+      if (activeTab === 'hashtags') {
+        if (hashtagFilter === 'popular') {
+          // Check if event has any hashtags (either in 't' tags or content)
+          const eventHashtags = evt.tags
+            .filter(tag => tag[0] === 't' && tag[1])
+            .map(tag => tag[1].toLowerCase())
+          const contentHashtags = evt.content.match(/#[a-zA-Z0-9_]+/g)?.map(h => h.slice(1).toLowerCase()) || []
+          const allHashtags = [...eventHashtags, ...contentHashtags]
+          
+          // Only show events that have at least one hashtag
+          if (allHashtags.length === 0) return false
+          
+          if (selectedHashtag) {
+            // Filter by selected popular hashtag - only show events that contain this specific hashtag
+            if (!allHashtags.includes(selectedHashtag.toLowerCase())) return false
+          }
+        }
+      } else if (activeTab === 'relays') {
+        // For "on your relays" tab, we'll show all events (they're already from user's relays)
+        // This is the default behavior, so no additional filtering needed
+      } else if (activeTab === 'band') {
+        // For "on Band" tab, we'll show all events (this is the general trending)
+        // This is the default behavior, so no additional filtering needed
+      }
+
       const id = isReplaceableEvent(evt.kind) ? getReplaceableCoordinateFromEvent(evt) : evt.id
       if (idSet.has(id)) {
         return false
@@ -256,19 +464,127 @@ export default function TrendingNotes() {
       idSet.add(id)
       return true
     })
-  }, [trendingNotes, hideUntrustedNotes, showCount, isEventDeleted])
+
+    // Apply sorting
+    filtered.sort((a, b) => {
+      if (sortOrder === 'newest') {
+        return b.created_at - a.created_at
+      } else if (sortOrder === 'oldest') {
+        return a.created_at - b.created_at
+      } else if (sortOrder === 'most-popular' || sortOrder === 'least-popular') {
+        const statsA = noteStatsService.getNoteStats(a.id)
+        const statsB = noteStatsService.getNoteStats(b.id)
+        
+        let scoreA = 0
+        let scoreB = 0
+        
+        if (statsA) {
+          scoreA += (statsA.likes?.length || 0)
+          scoreA += (statsA.replies?.length || 0) * 3
+          scoreA += (statsA.reposts?.length || 0) * 5
+          scoreA += (statsA.quotes?.length || 0) * 8
+          scoreA += (statsA.highlights?.length || 0) * 10
+          if (statsA.zaps) {
+            statsA.zaps.forEach(zap => {
+              scoreA += zap.amount >= zapReplyThreshold ? 8 : 1
+            })
+          }
+        }
+        
+        if (statsB) {
+          scoreB += (statsB.likes?.length || 0)
+          scoreB += (statsB.replies?.length || 0) * 3
+          scoreB += (statsB.reposts?.length || 0) * 5
+          scoreB += (statsB.quotes?.length || 0) * 8
+          scoreB += (statsB.highlights?.length || 0) * 10
+          if (statsB.zaps) {
+            statsB.zaps.forEach(zap => {
+              scoreB += zap.amount >= zapReplyThreshold ? 8 : 1
+            })
+          }
+        }
+        
+        return sortOrder === 'most-popular' ? scoreB - scoreA : scoreA - scoreB
+      }
+      
+      return 0
+    })
+
+    return filtered.slice(0, showCount)
+  }, [trendingNotes, hideUntrustedNotes, showCount, isEventDeleted, activeTab, listEventIds, bookmarkFilter, followsBookmarkEventIds, hashtagFilter, selectedHashtag, sortOrder, zapReplyThreshold, cacheEvents])
+
 
   useEffect(() => {
     const fetchTrendingPosts = async () => {
       setLoading(true)
       const events = await client.fetchTrendingNotes()
-      setTrendingNotes(events)
+      
+      // Apply the same NSFW and content warning filtering
+      const filteredEvents = events.filter(event => {
+        // Check for NSFW in 't' tags
+        const hasNsfwTag = event.tags.some(tag => 
+          tag[0] === 't' && tag[1] && tag[1].toLowerCase() === 'nsfw'
+        )
+        
+        // Check for sensitive content tag
+        const hasSensitiveTag = event.tags.some(tag => 
+          tag[0] === 't' && tag[1] && tag[1].toLowerCase() === 'sensitive'
+        )
+        
+        // Check for #NSFW hashtag in content
+        const hasNsfwHashtag = event.content.toLowerCase().includes('#nsfw')
+        
+        // Check for content-warning tag (NIP-36)
+        const hasContentWarning = event.tags.some(tag => 
+          tag[0] === 'content-warning'
+        )
+        
+        // Check for L tag with content-warning namespace
+        const hasContentWarningL = event.tags.some(tag => 
+          tag[0] === 'L' && tag[1] && tag[1].toLowerCase() === 'content-warning'
+        )
+        
+        // Check for l tag with content-warning namespace
+        const hasContentWarningl = event.tags.some(tag => 
+          tag[0] === 'l' && tag[1] && tag[1].toLowerCase() === 'content-warning'
+        )
+        
+        // Filter out if any NSFW or content warning indicators are found
+        return !hasNsfwTag && !hasSensitiveTag && !hasNsfwHashtag && 
+               !hasContentWarning && !hasContentWarningL && !hasContentWarningl
+      })
+      
+      setTrendingNotes(filteredEvents)
       setLoading(false)
     }
 
     fetchTrendingPosts()
   }, [])
 
+  // Reset showCount when tab changes
+  useEffect(() => {
+    setShowCount(10)
+  }, [activeTab])
+
+  // Reset filters when switching tabs
+  useEffect(() => {
+    if (activeTab === 'band') {
+      setSortOrder('most-popular')
+    } else if (activeTab === 'relays') {
+      setSortOrder('most-popular')
+    } else if (activeTab === 'hashtags') {
+      setSortOrder('most-popular')
+      setSelectedHashtag(null)
+    }
+  }, [activeTab, pubkey])
+
+  // Handle case where bookmarks tab is not available
+  useEffect(() => {
+    if (!pubkey && activeTab === 'bookmarks') {
+      setActiveTab('band')
+    }
+  }, [pubkey, activeTab])
+
   useEffect(() => {
     if (showCount >= trendingNotes.length) return
 
@@ -299,8 +615,125 @@ export default function TrendingNotes() {
 
   return (
     <div className="min-h-screen">
-      <div className="sticky top-12 h-12 px-4 flex flex-col justify-center text-lg font-bold bg-background z-30 border-b">
-        {t('Trending Notes')}
+      <div className="sticky top-12 bg-background z-30 border-b">
+        <div className="h-12 px-4 flex flex-col justify-center text-lg font-bold">
+          {t('Trending Notes')}
+        </div>
+        <div className="flex items-center gap-2 px-4 pb-2">
+          <span className="text-sm font-medium text-muted-foreground">Trending:</span>
+          <div className="flex gap-1">
+            <button
+              onClick={() => setActiveTab('band')}
+              className={`px-3 py-1 text-sm rounded-md transition-colors ${
+                activeTab === 'band'
+                  ? 'bg-primary text-primary-foreground'
+                  : 'bg-muted hover:bg-muted/80 text-muted-foreground'
+              }`}
+            >
+              on Band
+            </button>
+            <button
+              onClick={() => setActiveTab('relays')}
+              className={`px-3 py-1 text-sm rounded-md transition-colors ${
+                activeTab === 'relays'
+                  ? 'bg-primary text-primary-foreground'
+                  : 'bg-muted hover:bg-muted/80 text-muted-foreground'
+              }`}
+            >
+              on your relays
+            </button>
+            <button
+              onClick={() => setActiveTab('hashtags')}
+              className={`px-3 py-1 text-sm rounded-md transition-colors ${
+                activeTab === 'hashtags'
+                  ? 'bg-primary text-primary-foreground'
+                  : 'bg-muted hover:bg-muted/80 text-muted-foreground'
+              }`}
+            >
+              hashtags
+            </button>
+          </div>
+        </div>
+        
+        {/* Second row controls for tabs 2-3 */}
+        {(activeTab === 'relays' || activeTab === 'hashtags') && (
+          <div className="flex items-center gap-4 px-4 pb-2">
+            {/* Sorting controls - not shown for hashtags tab */}
+            {activeTab !== 'hashtags' && (
+              <div className="flex items-center gap-2">
+                <span className="text-xs text-muted-foreground">Sort:</span>
+                <div className="flex gap-1">
+                  <button
+                    onClick={() => setSortOrder('newest')}
+                    className={`px-2 py-1 text-xs rounded transition-colors ${
+                      sortOrder === 'newest'
+                        ? 'bg-secondary text-secondary-foreground'
+                        : 'bg-muted/50 hover:bg-muted text-muted-foreground'
+                    }`}
+                  >
+                    newest
+                  </button>
+                  <button
+                    onClick={() => setSortOrder('oldest')}
+                    className={`px-2 py-1 text-xs rounded transition-colors ${
+                      sortOrder === 'oldest'
+                        ? 'bg-secondary text-secondary-foreground'
+                        : 'bg-muted/50 hover:bg-muted text-muted-foreground'
+                    }`}
+                  >
+                    oldest
+                  </button>
+                  <button
+                    onClick={() => setSortOrder('most-popular')}
+                    className={`px-2 py-1 text-xs rounded transition-colors ${
+                      sortOrder === 'most-popular'
+                        ? 'bg-secondary text-secondary-foreground'
+                        : 'bg-muted/50 hover:bg-muted text-muted-foreground'
+                    }`}
+                  >
+                    most popular
+                  </button>
+                  <button
+                    onClick={() => setSortOrder('least-popular')}
+                    className={`px-2 py-1 text-xs rounded transition-colors ${
+                      sortOrder === 'least-popular'
+                        ? 'bg-secondary text-secondary-foreground'
+                        : 'bg-muted/50 hover:bg-muted text-muted-foreground'
+                    }`}
+                  >
+                    least popular
+                  </button>
+                </div>
+              </div>
+            )}
+
+
+          </div>
+        )}
+
+
+
+        {/* Popular hashtag buttons for hashtags tab */}
+        {activeTab === 'hashtags' && hashtagFilter === 'popular' && popularHashtags.length > 0 && (
+          <div className="flex items-center gap-2 px-4 pb-2">
+            <span className="text-xs text-muted-foreground">Popular hashtags:</span>
+            <div className="flex gap-1 flex-wrap">
+              {popularHashtags.map((hashtag) => (
+                <button
+                  key={hashtag}
+                  onClick={() => setSelectedHashtag(selectedHashtag === hashtag ? null : hashtag)}
+                  className={`px-2 py-1 text-xs rounded transition-colors ${
+                    selectedHashtag === hashtag
+                      ? 'bg-primary text-primary-foreground'
+                      : 'bg-muted/50 hover:bg-muted text-muted-foreground'
+                  }`}
+                >
+                  #{hashtag}
+                </button>
+              ))}
+            </div>
+          </div>
+        )}
       </div>
       {filteredEvents.map((event) => (
         <NoteCard key={event.id} className="w-full" event={event} />