diff --git a/src/components/AccountManager/index.tsx b/src/components/AccountManager/index.tsx
index 2cfca6f..8a953d1 100644
--- a/src/components/AccountManager/index.tsx
+++ b/src/components/AccountManager/index.tsx
@@ -1,14 +1,14 @@
 import { Button } from '@/components/ui/button'
 import { Separator } from '@/components/ui/separator'
-import { isDevEnv } from '@/lib/common'
+import { isDevEnv } from '@/lib/utils'
 import { useNostr } from '@/providers/NostrProvider'
 import { useTheme } from '@/providers/ThemeProvider'
 import { NstartModal } from 'nstart-modal'
 import { useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import AccountList from '../AccountList'
-import NostrConnectLogin from './NostrConnectionLogin'
 import GenerateNewAccount from './GenerateNewAccount'
+import NostrConnectLogin from './NostrConnectionLogin'
 import NpubLogin from './NpubLogin'
 import PrivateKeyLogin from './PrivateKeyLogin'
 
diff --git a/src/components/BookmarkList/index.tsx b/src/components/BookmarkList/index.tsx
index 1a24d4a..1b5ed16 100644
--- a/src/components/BookmarkList/index.tsx
+++ b/src/components/BookmarkList/index.tsx
@@ -1,5 +1,5 @@
 import { useFetchEvent } from '@/hooks'
-import { generateEventIdFromETag } from '@/lib/tag'
+import { generateBech32IdFromETag } from '@/lib/tag'
 import { useNostr } from '@/providers/NostrProvider'
 import { useEffect, useMemo, useRef, useState } from 'react'
 import { useTranslation } from 'react-i18next'
@@ -15,7 +15,7 @@ export default function BookmarkList() {
 
     return (
       bookmarkListEvent.tags
-        .map((tag) => (tag[0] === 'e' ? generateEventIdFromETag(tag) : undefined))
+        .map((tag) => (tag[0] === 'e' ? generateBech32IdFromETag(tag) : undefined))
         .filter(Boolean) as `nevent1${string}`[]
     ).reverse()
   }, [bookmarkListEvent])
diff --git a/src/components/ClientSelect/index.tsx b/src/components/ClientSelect/index.tsx
index 612b57a..2efe939 100644
--- a/src/components/ClientSelect/index.tsx
+++ b/src/components/ClientSelect/index.tsx
@@ -3,7 +3,7 @@ import { Dialog, DialogContent, DialogTrigger } from '@/components/ui/dialog'
 import { Drawer, DrawerContent, DrawerOverlay, DrawerTrigger } from '@/components/ui/drawer'
 import { Separator } from '@/components/ui/separator'
 import { ExtendedKind } from '@/constants'
-import { getReplaceableEventIdentifier, getSharableEventId } from '@/lib/event'
+import { getReplaceableEventIdentifier, getNoteBech32Id } from '@/lib/event'
 import { toChachiChat } from '@/lib/link'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
 import clientService from '@/services/client.service'
@@ -139,7 +139,7 @@ export default function ClientSelect({
             <ClientSelectItem
               key={clientId}
               onClick={() => setOpen(false)}
-              href={client.getUrl(originalNoteId ?? getSharableEventId(event!))}
+              href={client.getUrl(originalNoteId ?? getNoteBech32Id(event!))}
               name={client.name}
             />
           )
@@ -150,7 +150,7 @@ export default function ClientSelect({
         variant="ghost"
         className="w-full py-6 font-semibold"
         onClick={() => {
-          navigator.clipboard.writeText(originalNoteId ?? getSharableEventId(event!))
+          navigator.clipboard.writeText(originalNoteId ?? getNoteBech32Id(event!))
           setOpen(false)
         }}
       >
diff --git a/src/components/Content/index.tsx b/src/components/Content/index.tsx
index 3fd6ced..8d0bbd2 100644
--- a/src/components/Content/index.tsx
+++ b/src/components/Content/index.tsx
@@ -11,8 +11,8 @@ import {
   EmbeddedWebsocketUrlParser,
   parseContent
 } from '@/lib/content-parser'
-import { extractEmojiInfosFromTags } from '@/lib/event'
-import { extractImageInfoFromTag } from '@/lib/tag'
+import { getImageInfosFromEvent } from '@/lib/event'
+import { getEmojiInfosFromEmojiTags, getImageInfoFromImetaTag } from '@/lib/tag'
 import { cn } from '@/lib/utils'
 import mediaUpload from '@/services/media-upload.service'
 import { TImageInfo } from '@/types'
@@ -45,9 +45,7 @@ const Content = memo(({ event, className }: { event: Event; className?: string }
     EmbeddedEmojiParser
   ])
 
-  const imageInfos = event.tags
-    .map((tag) => extractImageInfoFromTag(tag, event.pubkey))
-    .filter(Boolean) as TImageInfo[]
+  const imageInfos = getImageInfosFromEvent(event)
   const allImages = nodes
     .map((node) => {
       if (node.type === 'image') {
@@ -57,7 +55,7 @@ const Content = memo(({ event, className }: { event: Event; className?: string }
         }
         const tag = mediaUpload.getImetaTagByUrl(node.data)
         return tag
-          ? extractImageInfoFromTag(tag, event.pubkey)
+          ? getImageInfoFromImetaTag(tag, event.pubkey)
           : { url: node.data, pubkey: event.pubkey }
       }
       if (node.type === 'images') {
@@ -73,7 +71,7 @@ const Content = memo(({ event, className }: { event: Event; className?: string }
     .flat() as TImageInfo[]
   let imageIndex = 0
 
-  const emojiInfos = extractEmojiInfosFromTags(event.tags)
+  const emojiInfos = getEmojiInfosFromEmojiTags(event.tags)
 
   const lastNormalUrlNode = nodes.findLast((node) => node.type === 'url')
   const lastNormalUrl =
diff --git a/src/components/ContentPreview/CommunityDefinitionPreview.tsx b/src/components/ContentPreview/CommunityDefinitionPreview.tsx
index 8f3a16b..0f58db7 100644
--- a/src/components/ContentPreview/CommunityDefinitionPreview.tsx
+++ b/src/components/ContentPreview/CommunityDefinitionPreview.tsx
@@ -1,4 +1,4 @@
-import { getCommunityDefinition } from '@/lib/event'
+import { getCommunityDefinitionFromEvent } from '@/lib/event-metadata'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -14,7 +14,7 @@ export default function CommunityDefinitionPreview({
   onClick?: React.MouseEventHandler<HTMLDivElement> | undefined
 }) {
   const { t } = useTranslation()
-  const metadata = useMemo(() => getCommunityDefinition(event), [event])
+  const metadata = useMemo(() => getCommunityDefinitionFromEvent(event), [event])
 
   return (
     <div className={cn('pointer-events-none', className)} onClick={onClick}>
diff --git a/src/components/ContentPreview/GroupMetadataPreview.tsx b/src/components/ContentPreview/GroupMetadataPreview.tsx
index 101dfc4..842bb1d 100644
--- a/src/components/ContentPreview/GroupMetadataPreview.tsx
+++ b/src/components/ContentPreview/GroupMetadataPreview.tsx
@@ -1,4 +1,4 @@
-import { getGroupMetadata } from '@/lib/event'
+import { getGroupMetadataFromEvent } from '@/lib/event-metadata'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -14,7 +14,7 @@ export default function GroupMetadataPreview({
   onClick?: React.MouseEventHandler<HTMLDivElement> | undefined
 }) {
   const { t } = useTranslation()
-  const metadata = useMemo(() => getGroupMetadata(event), [event])
+  const metadata = useMemo(() => getGroupMetadataFromEvent(event), [event])
 
   return (
     <div className={cn('pointer-events-none', className)} onClick={onClick}>
diff --git a/src/components/ContentPreview/LiveEventPreview.tsx b/src/components/ContentPreview/LiveEventPreview.tsx
index 887b1a4..1239379 100644
--- a/src/components/ContentPreview/LiveEventPreview.tsx
+++ b/src/components/ContentPreview/LiveEventPreview.tsx
@@ -1,4 +1,4 @@
-import { getLiveEventMetadata } from '@/lib/event'
+import { getLiveEventMetadataFromEvent } from '@/lib/event-metadata'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -14,7 +14,7 @@ export default function LiveEventPreview({
   onClick?: React.MouseEventHandler<HTMLDivElement> | undefined
 }) {
   const { t } = useTranslation()
-  const metadata = useMemo(() => getLiveEventMetadata(event), [event])
+  const metadata = useMemo(() => getLiveEventMetadataFromEvent(event), [event])
 
   return (
     <div className={cn('pointer-events-none', className)} onClick={onClick}>
diff --git a/src/components/ContentPreview/LongFormArticlePreview.tsx b/src/components/ContentPreview/LongFormArticlePreview.tsx
index 0b1ae71..73d92b6 100644
--- a/src/components/ContentPreview/LongFormArticlePreview.tsx
+++ b/src/components/ContentPreview/LongFormArticlePreview.tsx
@@ -1,4 +1,4 @@
-import { getLongFormArticleMetadata } from '@/lib/event'
+import { getLongFormArticleMetadataFromEvent } from '@/lib/event-metadata'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -14,7 +14,7 @@ export default function LongFormArticlePreview({
   onClick?: React.MouseEventHandler<HTMLDivElement> | undefined
 }) {
   const { t } = useTranslation()
-  const metadata = useMemo(() => getLongFormArticleMetadata(event), [event])
+  const metadata = useMemo(() => getLongFormArticleMetadataFromEvent(event), [event])
 
   return (
     <div className={cn('pointer-events-none', className)} onClick={onClick}>
diff --git a/src/components/ContentPreview/NormalContentPreview.tsx b/src/components/ContentPreview/NormalContentPreview.tsx
index 02c72cf..a4569cf 100644
--- a/src/components/ContentPreview/NormalContentPreview.tsx
+++ b/src/components/ContentPreview/NormalContentPreview.tsx
@@ -7,7 +7,7 @@ import {
   EmbeddedVideoParser,
   parseContent
 } from '@/lib/content-parser'
-import { extractEmojiInfosFromTags } from '@/lib/event'
+import { getEmojiInfosFromEmojiTags } from '@/lib/tag'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -36,7 +36,7 @@ export default function NormalContentPreview({
     ])
   }, [event, translatedEvent])
 
-  const emojiInfos = extractEmojiInfosFromTags(event?.tags)
+  const emojiInfos = getEmojiInfosFromEmojiTags(event?.tags)
 
   return (
     <div className={cn('pointer-events-none', className)} onClick={onClick}>
diff --git a/src/components/ImageCarousel/index.tsx b/src/components/ImageCarousel/index.tsx
index b0331fc..bb85e06 100644
--- a/src/components/ImageCarousel/index.tsx
+++ b/src/components/ImageCarousel/index.tsx
@@ -1,5 +1,5 @@
 import { Carousel, CarouselApi, CarouselContent, CarouselItem } from '@/components/ui/carousel'
-import { isTouchDevice } from '@/lib/common'
+import { isTouchDevice } from '@/lib/utils'
 import { TImageInfo } from '@/types'
 import { ChevronLeftIcon, ChevronRightIcon } from 'lucide-react'
 import { useEffect, useState } from 'react'
diff --git a/src/components/Note/CommunityDefinition.tsx b/src/components/Note/CommunityDefinition.tsx
index d327d00..b82781d 100644
--- a/src/components/Note/CommunityDefinition.tsx
+++ b/src/components/Note/CommunityDefinition.tsx
@@ -1,4 +1,4 @@
-import { getCommunityDefinition } from '@/lib/event'
+import { getCommunityDefinitionFromEvent } from '@/lib/event-metadata'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
 import ClientSelect from '../ClientSelect'
@@ -11,7 +11,7 @@ export default function CommunityDefinition({
   event: Event
   className?: string
 }) {
-  const metadata = useMemo(() => getCommunityDefinition(event), [event])
+  const metadata = useMemo(() => getCommunityDefinitionFromEvent(event), [event])
 
   const communityNameComponent = (
     <div className="text-xl font-semibold line-clamp-1">{metadata.name}</div>
diff --git a/src/components/Note/GroupMetadata.tsx b/src/components/Note/GroupMetadata.tsx
index f79d0bf..32af37c 100644
--- a/src/components/Note/GroupMetadata.tsx
+++ b/src/components/Note/GroupMetadata.tsx
@@ -1,4 +1,4 @@
-import { getGroupMetadata } from '@/lib/event'
+import { getGroupMetadataFromEvent } from '@/lib/event-metadata'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
 import ClientSelect from '../ClientSelect'
@@ -13,7 +13,7 @@ export default function GroupMetadata({
   originalNoteId?: string
   className?: string
 }) {
-  const metadata = useMemo(() => getGroupMetadata(event), [event])
+  const metadata = useMemo(() => getGroupMetadataFromEvent(event), [event])
 
   const groupNameComponent = (
     <div className="text-xl font-semibold line-clamp-1">{metadata.name}</div>
diff --git a/src/components/Note/Highlight.tsx b/src/components/Note/Highlight.tsx
index 42427d2..7bc5ede 100644
--- a/src/components/Note/Highlight.tsx
+++ b/src/components/Note/Highlight.tsx
@@ -2,7 +2,7 @@ import { useFetchEvent, useTranslatedEvent } from '@/hooks'
 import { createFakeEvent } from '@/lib/event'
 import { toNjump, toNote } from '@/lib/link'
 import { isValidPubkey } from '@/lib/pubkey'
-import { generateEventIdFromATag } from '@/lib/tag'
+import { generateBech32IdFromATag } from '@/lib/tag'
 import { cn } from '@/lib/utils'
 import { useSecondaryPage } from '@/PageManager'
 import { Event } from 'nostr-tools'
@@ -70,7 +70,7 @@ function HighlightSource({ event }: { event: Event }) {
       return sourceTag[1]
     }
     if (sourceTag[0] === 'a') {
-      return generateEventIdFromATag(sourceTag)
+      return generateBech32IdFromATag(sourceTag)
     }
   }, [sourceTag])
   const pubkey = useMemo(() => {
diff --git a/src/components/Note/LiveEvent.tsx b/src/components/Note/LiveEvent.tsx
index 18aea8f..740c6c2 100644
--- a/src/components/Note/LiveEvent.tsx
+++ b/src/components/Note/LiveEvent.tsx
@@ -1,5 +1,5 @@
 import { Badge } from '@/components/ui/badge'
-import { getLiveEventMetadata } from '@/lib/event'
+import { getLiveEventMetadataFromEvent } from '@/lib/event-metadata'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -8,7 +8,7 @@ import Image from '../Image'
 
 export default function LiveEvent({ event, className }: { event: Event; className?: string }) {
   const { isSmallScreen } = useScreenSize()
-  const metadata = useMemo(() => getLiveEventMetadata(event), [event])
+  const metadata = useMemo(() => getLiveEventMetadataFromEvent(event), [event])
 
   const liveStatusComponent =
     metadata.status &&
diff --git a/src/components/Note/LongFormArticle.tsx b/src/components/Note/LongFormArticle.tsx
index aadcdd1..25c50e9 100644
--- a/src/components/Note/LongFormArticle.tsx
+++ b/src/components/Note/LongFormArticle.tsx
@@ -1,5 +1,5 @@
 import { Badge } from '@/components/ui/badge'
-import { getLongFormArticleMetadata } from '@/lib/event'
+import { getLongFormArticleMetadataFromEvent } from '@/lib/event-metadata'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
 import { Event } from 'nostr-tools'
 import { useMemo } from 'react'
@@ -14,7 +14,7 @@ export default function LongFormArticle({
   className?: string
 }) {
   const { isSmallScreen } = useScreenSize()
-  const metadata = useMemo(() => getLongFormArticleMetadata(event), [event])
+  const metadata = useMemo(() => getLongFormArticleMetadataFromEvent(event), [event])
 
   const titleComponent = <div className="text-xl font-semibold line-clamp-2">{metadata.title}</div>
 
diff --git a/src/components/Note/index.tsx b/src/components/Note/index.tsx
index 33dca6d..9eb210c 100644
--- a/src/components/Note/index.tsx
+++ b/src/components/Note/index.tsx
@@ -1,8 +1,8 @@
 import { useSecondaryPage } from '@/PageManager'
 import { ExtendedKind } from '@/constants'
 import {
-  extractImageInfosFromEventTags,
-  getParentEventId,
+  getImageInfosFromEvent,
+  getParentBech32Id,
   getUsingClient,
   isNsfwEvent,
   isPictureEvent
@@ -47,11 +47,11 @@ export default function Note({
   const { push } = useSecondaryPage()
   const { isSmallScreen } = useScreenSize()
   const parentEventId = useMemo(
-    () => (hideParentNotePreview ? undefined : getParentEventId(event)),
+    () => (hideParentNotePreview ? undefined : getParentBech32Id(event)),
     [event, hideParentNotePreview]
   )
   const imageInfos = useMemo(
-    () => (isPictureEvent(event) ? extractImageInfosFromEventTags(event) : []),
+    () => (isPictureEvent(event) ? getImageInfosFromEvent(event) : []),
     [event]
   )
   const usingClient = useMemo(() => getUsingClient(event), [event])
diff --git a/src/components/NoteOptions/index.tsx b/src/components/NoteOptions/index.tsx
index b9bfec6..c430723 100644
--- a/src/components/NoteOptions/index.tsx
+++ b/src/components/NoteOptions/index.tsx
@@ -7,7 +7,7 @@ import {
   DropdownMenuSeparator,
   DropdownMenuTrigger
 } from '@/components/ui/dropdown-menu'
-import { getSharableEventId } from '@/lib/event'
+import { getNoteBech32Id } from '@/lib/event'
 import { toNjump } from '@/lib/link'
 import { pubkeyToNpub } from '@/lib/pubkey'
 import { useMuteList } from '@/providers/MuteListProvider'
@@ -56,7 +56,7 @@ export default function NoteOptions({ event, className }: { event: Event; classN
               <Button
                 onClick={() => {
                   setIsDrawerOpen(false)
-                  navigator.clipboard.writeText(getSharableEventId(event))
+                  navigator.clipboard.writeText(getNoteBech32Id(event))
                 }}
                 className="w-full p-6 justify-start text-lg gap-4 [&_svg]:size-5"
                 variant="ghost"
@@ -78,7 +78,7 @@ export default function NoteOptions({ event, className }: { event: Event; classN
               <Button
                 onClick={() => {
                   setIsDrawerOpen(false)
-                  navigator.clipboard.writeText(toNjump(getSharableEventId(event)))
+                  navigator.clipboard.writeText(toNjump(getNoteBech32Id(event)))
                 }}
                 className="w-full p-6 justify-start text-lg gap-4 [&_svg]:size-5"
                 variant="ghost"
@@ -149,9 +149,7 @@ export default function NoteOptions({ event, className }: { event: Event; classN
       <DropdownMenu>
         <DropdownMenuTrigger asChild>{trigger}</DropdownMenuTrigger>
         <DropdownMenuContent>
-          <DropdownMenuItem
-            onClick={() => navigator.clipboard.writeText(getSharableEventId(event))}
-          >
+          <DropdownMenuItem onClick={() => navigator.clipboard.writeText(getNoteBech32Id(event))}>
             <Copy />
             {t('Copy event ID')}
           </DropdownMenuItem>
@@ -162,7 +160,7 @@ export default function NoteOptions({ event, className }: { event: Event; classN
             {t('Copy user ID')}
           </DropdownMenuItem>
           <DropdownMenuItem
-            onClick={() => navigator.clipboard.writeText(toNjump(getSharableEventId(event)))}
+            onClick={() => navigator.clipboard.writeText(toNjump(getNoteBech32Id(event)))}
           >
             <Link />
             {t('Copy share link')}
diff --git a/src/components/NoteStats/RepostButton.tsx b/src/components/NoteStats/RepostButton.tsx
index 0692d65..2b747a4 100644
--- a/src/components/NoteStats/RepostButton.tsx
+++ b/src/components/NoteStats/RepostButton.tsx
@@ -8,7 +8,7 @@ import {
 } from '@/components/ui/dropdown-menu'
 import { useNoteStatsById } from '@/hooks/useNoteStatsById'
 import { createRepostDraftEvent } from '@/lib/draft-event'
-import { getSharableEventId } from '@/lib/event'
+import { getNoteBech32Id } from '@/lib/event'
 import { cn } from '@/lib/utils'
 import { useNostr } from '@/providers/NostrProvider'
 import { useScreenSize } from '@/providers/ScreenSizeProvider'
@@ -87,7 +87,7 @@ export default function RepostButton({ event }: { event: Event }) {
     <PostEditor
       open={isPostDialogOpen}
       setOpen={setIsPostDialogOpen}
-      defaultContent={'\nnostr:' + getSharableEventId(event)}
+      defaultContent={'\nnostr:' + getNoteBech32Id(event)}
     />
   )
 
diff --git a/src/components/NotificationList/NotificationItem/ZapNotification.tsx b/src/components/NotificationList/NotificationItem/ZapNotification.tsx
index fa25e15..dc0107d 100644
--- a/src/components/NotificationList/NotificationItem/ZapNotification.tsx
+++ b/src/components/NotificationList/NotificationItem/ZapNotification.tsx
@@ -1,5 +1,5 @@
 import { useFetchEvent } from '@/hooks'
-import { extractZapInfoFromReceipt } from '@/lib/event'
+import { getZapInfoFromEvent } from '@/lib/event-metadata'
 import { formatAmount } from '@/lib/lightning'
 import { toNote, toProfile } from '@/lib/link'
 import { cn } from '@/lib/utils'
@@ -24,7 +24,7 @@ export function ZapNotification({
   const { push } = useSecondaryPage()
   const { pubkey } = useNostr()
   const { senderPubkey, eventId, amount, comment } = useMemo(
-    () => extractZapInfoFromReceipt(notification) ?? ({} as any),
+    () => getZapInfoFromEvent(notification) ?? ({} as any),
     [notification]
   )
   const { event, isFetching } = useFetchEvent(eventId)
diff --git a/src/components/PictureContent/index.tsx b/src/components/PictureContent/index.tsx
index 36e6361..40d58cc 100644
--- a/src/components/PictureContent/index.tsx
+++ b/src/components/PictureContent/index.tsx
@@ -7,7 +7,8 @@ import {
   EmbeddedWebsocketUrlParser,
   parseContent
 } from '@/lib/content-parser'
-import { extractEmojiInfosFromTags, extractImageInfosFromEventTags } from '@/lib/event'
+import { getImageInfosFromEvent } from '@/lib/event'
+import { getEmojiInfosFromEmojiTags } from '@/lib/tag'
 import { cn } from '@/lib/utils'
 import { Event } from 'nostr-tools'
 import { memo, useMemo } from 'react'
@@ -22,7 +23,7 @@ import Emoji from '../Emoji'
 import { ImageCarousel } from '../ImageCarousel'
 
 const PictureContent = memo(({ event, className }: { event: Event; className?: string }) => {
-  const images = useMemo(() => extractImageInfosFromEventTags(event), [event])
+  const images = useMemo(() => getImageInfosFromEvent(event), [event])
 
   const nodes = parseContent(event.content, [
     EmbeddedNormalUrlParser,
@@ -33,7 +34,7 @@ const PictureContent = memo(({ event, className }: { event: Event; className?: s
     EmbeddedEmojiParser
   ])
 
-  const emojiInfos = extractEmojiInfosFromTags(event.tags)
+  const emojiInfos = getEmojiInfosFromEmojiTags(event.tags)
 
   return (
     <div className={cn('text-wrap break-words whitespace-pre-wrap space-y-2', className)}>
diff --git a/src/components/PictureNoteCard/index.tsx b/src/components/PictureNoteCard/index.tsx
index f9a63bb..b231579 100644
--- a/src/components/PictureNoteCard/index.tsx
+++ b/src/components/PictureNoteCard/index.tsx
@@ -1,5 +1,5 @@
 import { EmbeddedHashtagParser, EmbeddedMentionParser, parseContent } from '@/lib/content-parser'
-import { extractImageInfosFromEventTags } from '@/lib/event'
+import { getImageInfosFromEvent } from '@/lib/event'
 import { toNote } from '@/lib/link'
 import { tagNameEquals } from '@/lib/tag'
 import { cn } from '@/lib/utils'
@@ -21,7 +21,7 @@ export default function PictureNoteCard({
   className?: string
 }) {
   const { push } = useSecondaryPage()
-  const images = useMemo(() => extractImageInfosFromEventTags(event), [event])
+  const images = useMemo(() => getImageInfosFromEvent(event), [event])
   const title = useMemo(() => {
     const nodes = parseContent(event.tags.find(tagNameEquals('title'))?.[1] ?? event.content, [
       EmbeddedMentionParser,
diff --git a/src/components/PostEditor/Mentions.tsx b/src/components/PostEditor/Mentions.tsx
index f33ef5e..4a6baa1 100644
--- a/src/components/PostEditor/Mentions.tsx
+++ b/src/components/PostEditor/Mentions.tsx
@@ -1,14 +1,14 @@
 import { Button } from '@/components/ui/button'
 import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover'
-import { extractMentions } from '@/lib/event'
+import { useMuteList } from '@/providers/MuteListProvider'
 import { useNostr } from '@/providers/NostrProvider'
+import client from '@/services/client.service'
 import { Check } from 'lucide-react'
-import { Event } from 'nostr-tools'
+import { Event, nip19 } from 'nostr-tools'
 import { HTMLAttributes, useEffect, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { SimpleUserAvatar } from '../UserAvatar'
 import { SimpleUsername } from '../Username'
-import { useMuteList } from '@/providers/MuteListProvider'
 
 export default function Mentions({
   content,
@@ -131,3 +131,50 @@ function PopoverCheckboxItem({
     </div>
   )
 }
+
+async function extractMentions(content: string, parentEvent?: Event) {
+  const parentEventPubkey = parentEvent ? parentEvent.pubkey : undefined
+  const pubkeys: string[] = []
+  const relatedPubkeys: string[] = []
+  const matches = content.match(
+    /nostr:(npub1[a-z0-9]{58}|nprofile1[a-z0-9]+|note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g
+  )
+
+  const addToSet = (arr: string[], pubkey: string) => {
+    if (pubkey === parentEventPubkey) return
+    if (!arr.includes(pubkey)) arr.push(pubkey)
+  }
+
+  for (const m of matches || []) {
+    try {
+      const id = m.split(':')[1]
+      const { type, data } = nip19.decode(id)
+      if (type === 'nprofile') {
+        addToSet(pubkeys, data.pubkey)
+      } else if (type === 'npub') {
+        addToSet(pubkeys, data)
+      } else if (['nevent', 'note'].includes(type)) {
+        const event = await client.fetchEvent(id)
+        if (event) {
+          addToSet(pubkeys, event.pubkey)
+        }
+      }
+    } catch (e) {
+      console.error(e)
+    }
+  }
+
+  if (parentEvent) {
+    parentEvent.tags.forEach(([tagName, tagValue]) => {
+      if (['p', 'P'].includes(tagName) && !!tagValue) {
+        addToSet(relatedPubkeys, tagValue)
+      }
+    })
+  }
+
+  return {
+    pubkeys,
+    relatedPubkeys: relatedPubkeys.filter((p) => !pubkeys.includes(p)),
+    parentEventPubkey
+  }
+}
diff --git a/src/components/ReplyNoteList/index.tsx b/src/components/ReplyNoteList/index.tsx
index bb677a5..3f90d30 100644
--- a/src/components/ReplyNoteList/index.tsx
+++ b/src/components/ReplyNoteList/index.tsx
@@ -1,14 +1,14 @@
 import { BIG_RELAY_URLS, ExtendedKind } from '@/constants'
 import {
-  getEventCoordinate,
-  getParentEventTag,
-  getRootAddressableEventTag,
+  getParentETag,
+  getReplaceableEventCoordinate,
+  getRootATag,
+  getRootETag,
   getRootEventHexId,
-  getRootEventTag,
-  isReplaceable,
+  isReplaceableEvent,
   isReplyNoteEvent
 } from '@/lib/event'
-import { generateEventIdFromETag, tagNameEquals } from '@/lib/tag'
+import { generateBech32IdFromETag, tagNameEquals } from '@/lib/tag'
 import { useSecondaryPage } from '@/PageManager'
 import { useReply } from '@/providers/ReplyProvider'
 import { useUserTrust } from '@/providers/UserTrustProvider'
@@ -36,16 +36,18 @@ export default function ReplyNoteList({ index, event }: { index?: number; event:
   const replies = useMemo(() => {
     const replyIdSet = new Set<string>()
     const replyEvents: NEvent[] = []
-    const currentEventId = isReplaceable(event.kind) ? getEventCoordinate(event) : event.id
-    let parentEventIds = [currentEventId]
-    while (parentEventIds.length > 0) {
-      const events = parentEventIds.flatMap((id) => repliesMap.get(id)?.events || [])
+    const currentEventKey = isReplaceableEvent(event.kind)
+      ? getReplaceableEventCoordinate(event)
+      : event.id
+    let parentEventKeys = [currentEventKey]
+    while (parentEventKeys.length > 0) {
+      const events = parentEventKeys.flatMap((id) => repliesMap.get(id)?.events || [])
       events.forEach((evt) => {
         if (replyIdSet.has(evt.id)) return
         replyIdSet.add(evt.id)
         replyEvents.push(evt)
       })
-      parentEventIds = events.map((evt) => evt.id)
+      parentEventKeys = events.map((evt) => evt.id)
     }
     return replyEvents.sort((a, b) => a.created_at - b.created_at)
   }, [event.id, repliesMap])
@@ -59,22 +61,22 @@ export default function ReplyNoteList({ index, event }: { index?: number; event:
 
   useEffect(() => {
     const fetchRootEvent = async () => {
-      let root: TRootInfo = isReplaceable(event.kind)
+      let root: TRootInfo = isReplaceableEvent(event.kind)
         ? {
             type: 'A',
-            id: getEventCoordinate(event),
+            id: getReplaceableEventCoordinate(event),
             eventId: event.id,
             pubkey: event.pubkey,
             relay: client.getEventHint(event.id)
           }
         : { type: 'E', id: event.id, pubkey: event.pubkey }
-      const rootEventTag = getRootEventTag(event)
-      if (rootEventTag) {
-        const [, rootEventHexId, , , rootEventPubkey] = rootEventTag
+      const rootETag = getRootETag(event)
+      if (rootETag) {
+        const [, rootEventHexId, , , rootEventPubkey] = rootETag
         if (rootEventHexId && rootEventPubkey) {
           root = { type: 'E', id: rootEventHexId, pubkey: rootEventPubkey }
         } else {
-          const rootEventId = generateEventIdFromETag(rootEventTag)
+          const rootEventId = generateBech32IdFromETag(rootETag)
           if (rootEventId) {
             const rootEvent = await client.fetchEvent(rootEventId)
             if (rootEvent) {
@@ -83,7 +85,7 @@ export default function ReplyNoteList({ index, event }: { index?: number; event:
           }
         }
       } else if (event.kind === ExtendedKind.COMMENT) {
-        const rootATag = getRootAddressableEventTag(event)
+        const rootATag = getRootATag(event)
         if (rootATag) {
           const [, coordinate, relay] = rootATag
           const [, pubkey] = coordinate.split(':')
@@ -295,9 +297,9 @@ export default function ReplyNoteList({ index, event }: { index?: number; event:
             }
           }
 
-          const parentEventTag = getParentEventTag(reply)
-          const parentEventOriginalId = parentEventTag?.[1]
-          const parentEventId = parentEventTag ? generateEventIdFromETag(parentEventTag) : undefined
+          const parentETag = getParentETag(reply)
+          const parentEventHexId = parentETag?.[1]
+          const parentEventId = parentETag ? generateBech32IdFromETag(parentETag) : undefined
           return (
             <div
               ref={(el) => (replyRefs.current[reply.id] = el)}
@@ -306,8 +308,8 @@ export default function ReplyNoteList({ index, event }: { index?: number; event:
             >
               <ReplyNote
                 event={reply}
-                parentEventId={event.id !== parentEventOriginalId ? parentEventId : undefined}
-                onClickParent={() => parentEventOriginalId && highlightReply(parentEventOriginalId)}
+                parentEventId={event.id !== parentEventHexId ? parentEventId : undefined}
+                onClickParent={() => parentEventHexId && highlightReply(parentEventHexId)}
                 highlight={highlightReplyId === reply.id}
               />
             </div>
diff --git a/src/hooks/useFetchFollowings.tsx b/src/hooks/useFetchFollowings.tsx
index cbdc72e..73b906a 100644
--- a/src/hooks/useFetchFollowings.tsx
+++ b/src/hooks/useFetchFollowings.tsx
@@ -1,4 +1,4 @@
-import { extractPubkeysFromEventTags } from '@/lib/tag'
+import { getPubkeysFromPTags } from '@/lib/tag'
 import client from '@/services/client.service'
 import { Event } from 'nostr-tools'
 import { useEffect, useState } from 'react'
@@ -18,7 +18,7 @@ export function useFetchFollowings(pubkey?: string | null) {
         if (!event) return
 
         setFollowListEvent(event)
-        setFollowings(extractPubkeysFromEventTags(event.tags))
+        setFollowings(getPubkeysFromPTags(event.tags))
       } finally {
         setIsFetching(false)
       }
diff --git a/src/lib/common.ts b/src/lib/common.ts
deleted file mode 100644
index 2bb18e4..0000000
--- a/src/lib/common.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-export function isTouchDevice() {
-  return 'ontouchstart' in window || navigator.maxTouchPoints > 0
-}
-
-export function isEmail(email: string) {
-  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)
-}
-
-export function isDevEnv() {
-  return process.env.NODE_ENV === 'development'
-}
diff --git a/src/lib/draft-event.ts b/src/lib/draft-event.ts
index 56ef96b..6d87548 100644
--- a/src/lib/draft-event.ts
+++ b/src/lib/draft-event.ts
@@ -3,16 +3,14 @@ import client from '@/services/client.service'
 import mediaUpload from '@/services/media-upload.service'
 import { TDraftEvent, TEmoji, TMailboxRelay, TRelaySet } from '@/types'
 import dayjs from 'dayjs'
-import { Event, kinds } from 'nostr-tools'
+import { Event, kinds, nip19 } from 'nostr-tools'
 import {
-  extractCommentMentions,
-  extractHashtags,
-  extractImagesFromContent,
-  extractRelatedEventIds,
-  getEventCoordinate,
+  getReplaceableEventCoordinate,
+  getRootETag,
   isProtectedEvent,
-  isReplaceable
+  isReplaceableEvent
 } from './event'
+import { generateBech32IdFromETag, tagNameEquals } from './tag'
 import { normalizeHttpUrl } from './url'
 
 // https://github.com/nostr-protocol/nips/blob/master/25.md
@@ -25,8 +23,12 @@ export function createReactionDraftEvent(event: Event, emoji: TEmoji | string =
     tags.push(['k', event.kind.toString()])
   }
 
-  if (isReplaceable(event.kind)) {
-    tags.push(hint ? ['a', getEventCoordinate(event), hint] : ['a', getEventCoordinate(event)])
+  if (isReplaceableEvent(event.kind)) {
+    tags.push(
+      hint
+        ? ['a', getReplaceableEventCoordinate(event), hint]
+        : ['a', getReplaceableEventCoordinate(event)]
+    )
   }
 
   let content: string
@@ -81,7 +83,7 @@ export async function createShortTextNoteDraftEvent(
   const tags = hashtags.map((hashtag) => ['t', hashtag])
 
   // imeta tags
-  const { images } = extractImagesFromContent(content)
+  const images = extractImagesFromContent(content)
   if (images && images.length) {
     tags.push(...generateImetaTags(images))
   }
@@ -209,7 +211,7 @@ export async function createCommentDraftEvent(
     .map((hashtag) => ['t', hashtag])
     .concat(quoteEventIds.map((eventId) => ['q', eventId, client.getEventHint(eventId)]))
 
-  const { images } = extractImagesFromContent(content)
+  const images = extractImagesFromContent(content)
   if (images && images.length) {
     tags.push(...generateImetaTags(images))
   }
@@ -319,7 +321,7 @@ export function createFavoriteRelaysDraftEvent(
     tags.push(['relay', url])
   })
   relaySetEvents.forEach((event) => {
-    tags.push(['a', getEventCoordinate(event)])
+    tags.push(['a', getReplaceableEventCoordinate(event)])
   })
   return {
     kind: ExtendedKind.FAVORITE_RELAYS,
@@ -364,3 +366,155 @@ function generateImetaTags(imageUrls: string[]) {
     })
     .filter(Boolean) as string[][]
 }
+
+async function extractRelatedEventIds(content: string, parentEvent?: Event) {
+  const quoteEventIds: string[] = []
+  let rootETag: string[] = []
+  let parentETag: string[] = []
+  const matches = content.match(/nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g)
+
+  const addToSet = (arr: string[], item: string) => {
+    if (!arr.includes(item)) arr.push(item)
+  }
+
+  for (const m of matches || []) {
+    try {
+      const id = m.split(':')[1]
+      const { type, data } = nip19.decode(id)
+      if (type === 'nevent') {
+        addToSet(quoteEventIds, data.id)
+      } else if (type === 'note') {
+        addToSet(quoteEventIds, data)
+      }
+    } catch (e) {
+      console.error(e)
+    }
+  }
+
+  if (parentEvent) {
+    const _rootETag = getRootETag(parentEvent)
+    if (_rootETag) {
+      parentETag = [
+        'e',
+        parentEvent.id,
+        client.getEventHint(parentEvent.id),
+        'reply',
+        parentEvent.pubkey
+      ]
+
+      const [, rootEventHexId, hint, , rootEventPubkey] = _rootETag
+      if (rootEventPubkey) {
+        rootETag = [
+          'e',
+          rootEventHexId,
+          hint ?? client.getEventHint(rootEventHexId),
+          'root',
+          rootEventPubkey
+        ]
+      } else {
+        const rootEventId = generateBech32IdFromETag(_rootETag)
+        const rootEvent = rootEventId ? await client.fetchEvent(rootEventId) : undefined
+        rootETag = rootEvent
+          ? ['e', rootEvent.id, hint ?? client.getEventHint(rootEvent.id), 'root', rootEvent.pubkey]
+          : ['e', rootEventHexId, hint ?? client.getEventHint(rootEventHexId), 'root']
+      }
+    } else {
+      // reply to root event
+      rootETag = [
+        'e',
+        parentEvent.id,
+        client.getEventHint(parentEvent.id),
+        'root',
+        parentEvent.pubkey
+      ]
+    }
+  }
+
+  return {
+    quoteEventIds,
+    rootETag,
+    parentETag
+  }
+}
+
+async function extractCommentMentions(content: string, parentEvent: Event) {
+  const quoteEventIds: string[] = []
+  const parentEventIsReplaceable = isReplaceableEvent(parentEvent.kind)
+  const rootCoordinateTag =
+    parentEvent.kind === ExtendedKind.COMMENT
+      ? parentEvent.tags.find(tagNameEquals('A'))
+      : isReplaceableEvent(parentEvent.kind)
+        ? ['A', getReplaceableEventCoordinate(parentEvent), client.getEventHint(parentEvent.id)]
+        : undefined
+  const rootEventId =
+    parentEvent.kind === ExtendedKind.COMMENT
+      ? parentEvent.tags.find(tagNameEquals('E'))?.[1]
+      : parentEvent.id
+  const rootKind =
+    parentEvent.kind === ExtendedKind.COMMENT
+      ? parentEvent.tags.find(tagNameEquals('K'))?.[1]
+      : parentEvent.kind
+  const rootPubkey =
+    parentEvent.kind === ExtendedKind.COMMENT
+      ? parentEvent.tags.find(tagNameEquals('P'))?.[1]
+      : parentEvent.pubkey
+  const rootUrl =
+    parentEvent.kind === ExtendedKind.COMMENT
+      ? parentEvent.tags.find(tagNameEquals('I'))?.[1]
+      : undefined
+
+  const parentEventId = parentEvent.id
+  const parentCoordinate = parentEventIsReplaceable
+    ? getReplaceableEventCoordinate(parentEvent)
+    : undefined
+  const parentKind = parentEvent.kind
+  const parentPubkey = parentEvent.pubkey
+
+  const addToSet = (arr: string[], item: string) => {
+    if (!arr.includes(item)) arr.push(item)
+  }
+
+  const matches = content.match(/nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g)
+  for (const m of matches || []) {
+    try {
+      const id = m.split(':')[1]
+      const { type, data } = nip19.decode(id)
+      if (type === 'nevent') {
+        addToSet(quoteEventIds, data.id)
+      } else if (type === 'note') {
+        addToSet(quoteEventIds, data)
+      }
+    } catch (e) {
+      console.error(e)
+    }
+  }
+
+  return {
+    quoteEventIds,
+    rootEventId,
+    rootCoordinateTag,
+    rootKind,
+    rootPubkey,
+    rootUrl,
+    parentEventId,
+    parentCoordinate,
+    parentKind,
+    parentPubkey
+  }
+}
+
+function extractHashtags(content: string) {
+  const hashtags: string[] = []
+  const matches = content.match(/#[\p{L}\p{N}\p{M}]+/gu)
+  matches?.forEach((m) => {
+    const hashtag = m.slice(1).toLowerCase()
+    if (hashtag) {
+      hashtags.push(hashtag)
+    }
+  })
+  return hashtags
+}
+
+function extractImagesFromContent(content: string) {
+  return content.match(/https?:\/\/[^\s"']+\.(jpg|jpeg|png|gif|webp|heic)/gi)
+}
diff --git a/src/lib/event-metadata.ts b/src/lib/event-metadata.ts
new file mode 100644
index 0000000..f553e28
--- /dev/null
+++ b/src/lib/event-metadata.ts
@@ -0,0 +1,264 @@
+import { BIG_RELAY_URLS } from '@/constants'
+import { TRelayList, TRelaySet } from '@/types'
+import { Event, kinds } from 'nostr-tools'
+import { getReplaceableEventIdentifier } from './event'
+import { getAmountFromInvoice, getLightningAddressFromProfile } from './lightning'
+import { formatPubkey, pubkeyToNpub } from './pubkey'
+import { generateBech32IdFromETag, tagNameEquals } from './tag'
+import { isWebsocketUrl, normalizeHttpUrl, normalizeUrl } from './url'
+import { isTorBrowser } from './utils'
+
+export function getRelayListFromEvent(event?: Event) {
+  if (!event) {
+    return { write: BIG_RELAY_URLS, read: BIG_RELAY_URLS, originalRelays: [] }
+  }
+
+  const torBrowserDetected = isTorBrowser()
+  const relayList = { write: [], read: [], originalRelays: [] } as TRelayList
+  event.tags.filter(tagNameEquals('r')).forEach(([, url, type]) => {
+    if (!url || !isWebsocketUrl(url)) return
+
+    const normalizedUrl = normalizeUrl(url)
+    if (!normalizedUrl) return
+
+    const scope = type === 'read' ? 'read' : type === 'write' ? 'write' : 'both'
+    relayList.originalRelays.push({ url: normalizedUrl, scope })
+
+    // Filter out .onion URLs if not using Tor browser
+    if (normalizedUrl.endsWith('.onion/') && !torBrowserDetected) return
+
+    if (type === 'write') {
+      relayList.write.push(normalizedUrl)
+    } else if (type === 'read') {
+      relayList.read.push(normalizedUrl)
+    } else {
+      relayList.write.push(normalizedUrl)
+      relayList.read.push(normalizedUrl)
+    }
+  })
+
+  // If there are too many relays, use the default BIG_RELAY_URLS
+  // Because they don't know anything about relays, their settings cannot be trusted
+  return {
+    write: relayList.write.length && relayList.write.length <= 8 ? relayList.write : BIG_RELAY_URLS,
+    read: relayList.read.length && relayList.write.length <= 8 ? relayList.read : BIG_RELAY_URLS,
+    originalRelays: relayList.originalRelays
+  }
+}
+
+export function getProfileFromEvent(event: Event) {
+  try {
+    const profileObj = JSON.parse(event.content)
+    const username =
+      profileObj.display_name?.trim() ||
+      profileObj.name?.trim() ||
+      profileObj.nip05?.split('@')[0]?.trim()
+    return {
+      pubkey: event.pubkey,
+      npub: pubkeyToNpub(event.pubkey) ?? '',
+      banner: profileObj.banner,
+      avatar: profileObj.picture,
+      username: username || formatPubkey(event.pubkey),
+      original_username: username,
+      nip05: profileObj.nip05,
+      about: profileObj.about,
+      website: profileObj.website ? normalizeHttpUrl(profileObj.website) : undefined,
+      lud06: profileObj.lud06,
+      lud16: profileObj.lud16,
+      lightningAddress: getLightningAddressFromProfile(profileObj),
+      created_at: event.created_at
+    }
+  } catch (err) {
+    console.error(err)
+    return {
+      pubkey: event.pubkey,
+      npub: pubkeyToNpub(event.pubkey) ?? '',
+      username: formatPubkey(event.pubkey)
+    }
+  }
+}
+
+export function getRelaySetFromEvent(event: Event): TRelaySet {
+  const id = getReplaceableEventIdentifier(event)
+  const relayUrls = event.tags
+    .filter(tagNameEquals('relay'))
+    .map((tag) => tag[1])
+    .filter((url) => url && isWebsocketUrl(url))
+    .map((url) => normalizeUrl(url))
+
+  let name = event.tags.find(tagNameEquals('title'))?.[1]
+  if (!name) {
+    name = id
+  }
+
+  return { id, name, relayUrls }
+}
+
+export function getZapInfoFromEvent(receiptEvent: Event) {
+  if (receiptEvent.kind !== kinds.Zap) return null
+
+  let senderPubkey: string | undefined
+  let recipientPubkey: string | undefined
+  let originalEventId: string | undefined
+  let eventId: string | undefined
+  let invoice: string | undefined
+  let amount: number | undefined
+  let comment: string | undefined
+  let description: string | undefined
+  let preimage: string | undefined
+  try {
+    receiptEvent.tags.forEach((tag) => {
+      const [tagName, tagValue] = tag
+      switch (tagName) {
+        case 'P':
+          senderPubkey = tagValue
+          break
+        case 'p':
+          recipientPubkey = tagValue
+          break
+        case 'e':
+          originalEventId = tag[1]
+          eventId = generateBech32IdFromETag(tag)
+          break
+        case 'bolt11':
+          invoice = tagValue
+          break
+        case 'description':
+          description = tagValue
+          break
+        case 'preimage':
+          preimage = tagValue
+          break
+      }
+    })
+    if (!recipientPubkey || !invoice) return null
+    amount = invoice ? getAmountFromInvoice(invoice) : 0
+    if (description) {
+      try {
+        const zapRequest = JSON.parse(description)
+        comment = zapRequest.content
+        if (!senderPubkey) {
+          senderPubkey = zapRequest.pubkey
+        }
+      } catch {
+        // ignore
+      }
+    }
+
+    return {
+      senderPubkey,
+      recipientPubkey,
+      eventId,
+      originalEventId,
+      invoice,
+      amount,
+      comment,
+      preimage
+    }
+  } catch {
+    return null
+  }
+}
+
+export function getLongFormArticleMetadataFromEvent(event: Event) {
+  let title: string | undefined
+  let summary: string | undefined
+  let image: string | undefined
+  const tags = new Set<string>()
+
+  event.tags.forEach(([tagName, tagValue]) => {
+    if (tagName === 'title') {
+      title = tagValue
+    } else if (tagName === 'summary') {
+      summary = tagValue
+    } else if (tagName === 'image') {
+      image = tagValue
+    } else if (tagName === 't' && tagValue && tags.size < 6) {
+      tags.add(tagValue.toLocaleLowerCase())
+    }
+  })
+
+  if (!title) {
+    title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title'
+  }
+
+  return { title, summary, image, tags: Array.from(tags) }
+}
+
+export function getLiveEventMetadataFromEvent(event: Event) {
+  let title: string | undefined
+  let summary: string | undefined
+  let image: string | undefined
+  let status: string | undefined
+  const tags = new Set<string>()
+
+  event.tags.forEach(([tagName, tagValue]) => {
+    if (tagName === 'title') {
+      title = tagValue
+    } else if (tagName === 'summary') {
+      summary = tagValue
+    } else if (tagName === 'image') {
+      image = tagValue
+    } else if (tagName === 'status') {
+      status = tagValue
+    } else if (tagName === 't' && tagValue && tags.size < 6) {
+      tags.add(tagValue.toLocaleLowerCase())
+    }
+  })
+
+  if (!title) {
+    title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title'
+  }
+
+  return { title, summary, image, status, tags: Array.from(tags) }
+}
+
+export function getGroupMetadataFromEvent(event: Event) {
+  let d: string | undefined
+  let name: string | undefined
+  let about: string | undefined
+  let picture: string | undefined
+  const tags = new Set<string>()
+
+  event.tags.forEach(([tagName, tagValue]) => {
+    if (tagName === 'name') {
+      name = tagValue
+    } else if (tagName === 'about') {
+      about = tagValue
+    } else if (tagName === 'picture') {
+      picture = tagValue
+    } else if (tagName === 't' && tagValue) {
+      tags.add(tagValue.toLocaleLowerCase())
+    } else if (tagName === 'd') {
+      d = tagValue
+    }
+  })
+
+  if (!name) {
+    name = d ?? 'no name'
+  }
+
+  return { d, name, about, picture, tags: Array.from(tags) }
+}
+
+export function getCommunityDefinitionFromEvent(event: Event) {
+  let name: string | undefined
+  let description: string | undefined
+  let image: string | undefined
+
+  event.tags.forEach(([tagName, tagValue]) => {
+    if (tagName === 'name') {
+      name = tagValue
+    } else if (tagName === 'description') {
+      description = tagValue
+    } else if (tagName === 'image') {
+      image = tagValue
+    }
+  })
+
+  if (!name) {
+    name = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no name'
+  }
+
+  return { name, description, image }
+}
diff --git a/src/lib/event.ts b/src/lib/event.ts
index ae8569d..09ed6e8 100644
--- a/src/lib/event.ts
+++ b/src/lib/event.ts
@@ -1,22 +1,16 @@
-import { BIG_RELAY_URLS, ExtendedKind } from '@/constants'
+import { ExtendedKind } from '@/constants'
 import client from '@/services/client.service'
-import { TEmoji, TImageInfo, TRelayList, TRelaySet } from '@/types'
+import { TImageInfo } from '@/types'
 import { LRUCache } from 'lru-cache'
 import { Event, kinds, nip19 } from 'nostr-tools'
-import { getAmountFromInvoice, getLightningAddressFromProfile } from './lightning'
-import { formatPubkey, pubkeyToNpub } from './pubkey'
 import {
-  extractImageInfoFromTag,
-  generateEventIdFromATag,
-  generateEventIdFromETag,
-  isReplyETag,
-  isRootETag,
+  getImageInfoFromImetaTag,
+  generateBech32IdFromATag,
+  generateBech32IdFromETag,
   tagNameEquals
 } from './tag'
-import { isWebsocketUrl, normalizeHttpUrl, normalizeUrl } from './url'
-import { isTorBrowser } from './utils'
 
-const EVENT_EMBEDDED_EVENT_IDS_CACHE = new LRUCache<string, string[]>({ max: 10000 })
+const EVENT_EMBEDDED_NOTES_CACHE = new LRUCache<string, string[]>({ max: 10000 })
 const EVENT_IS_REPLY_NOTE_CACHE = new LRUCache<string, boolean>({ max: 10000 })
 
 export function isNsfwEvent(event: Event) {
@@ -27,36 +21,18 @@ export function isNsfwEvent(event: Event) {
 }
 
 export function isReplyNoteEvent(event: Event) {
-  if (event.kind === ExtendedKind.COMMENT) {
-    return !!getParentEventTag(event) || !!getParentAddressableEventTag(event)
-  }
-  if (event.kind !== kinds.ShortTextNote) return false
+  if (![kinds.ShortTextNote, ExtendedKind.COMMENT].includes(event.kind)) return false
 
   const cache = EVENT_IS_REPLY_NOTE_CACHE.get(event.id)
   if (cache !== undefined) return cache
 
-  const mentionsEventIds: string[] = []
-  for (const [tagName, id, , marker] of event.tags) {
-    if (tagName === 'a' && id) {
-      EVENT_IS_REPLY_NOTE_CACHE.set(event.id, true)
-      return true
-    }
-    if (tagName !== 'e' || !id) continue
-
-    mentionsEventIds.push(id)
-    if (['root', 'reply'].includes(marker)) {
-      EVENT_IS_REPLY_NOTE_CACHE.set(event.id, true)
-      return true
-    }
-  }
-  const embeddedEventIds = extractEmbeddedEventIds(event)
-  const result = mentionsEventIds.some((id) => !embeddedEventIds.includes(id))
-  EVENT_IS_REPLY_NOTE_CACHE.set(event.id, result)
-  return result
+  const isReply = !!getParentETag(event) || !!getParentATag(event)
+  EVENT_IS_REPLY_NOTE_CACHE.set(event.id, isReply)
+  return isReply
 }
 
-export function isCommentEvent(event: Event) {
-  return event.kind === ExtendedKind.COMMENT
+export function isReplaceableEvent(kind: number) {
+  return kinds.isReplaceableKind(kind) || kinds.isAddressableKind(kind)
 }
 
 export function isPictureEvent(event: Event) {
@@ -67,16 +43,18 @@ export function isProtectedEvent(event: Event) {
   return event.tags.some(([tagName]) => tagName === '-')
 }
 
-export function getParentEventTag(event?: Event) {
+export function getParentETag(event?: Event) {
   if (!event || ![kinds.ShortTextNote, ExtendedKind.COMMENT].includes(event.kind)) return undefined
 
   if (event.kind === ExtendedKind.COMMENT) {
     return event.tags.find(tagNameEquals('e')) ?? event.tags.find(tagNameEquals('E'))
   }
 
-  let tag = event.tags.find(isReplyETag)
+  let tag = event.tags.find(([tagName, , , marker]) => {
+    return tagName === 'e' && marker === 'reply'
+  })
   if (!tag) {
-    const embeddedEventIds = extractEmbeddedEventIds(event)
+    const embeddedEventIds = getEmbeddedNoteBech32Ids(event)
     tag = event.tags.findLast(
       ([tagName, tagValue]) => tagName === 'e' && !!tagValue && !embeddedEventIds.includes(tagValue)
     )
@@ -84,39 +62,41 @@ export function getParentEventTag(event?: Event) {
   return tag
 }
 
-export function getParentAddressableEventTag(event?: Event) {
+export function getParentATag(event?: Event) {
   if (!event || ![kinds.ShortTextNote, ExtendedKind.COMMENT].includes(event.kind)) return undefined
 
   return event.tags.find(tagNameEquals('a')) ?? event.tags.find(tagNameEquals('A'))
 }
 
 export function getParentEventHexId(event?: Event) {
-  const tag = getParentEventTag(event)
+  const tag = getParentETag(event)
   return tag?.[1]
 }
 
-export function getParentEventId(event?: Event) {
-  const eTag = getParentEventTag(event)
+export function getParentBech32Id(event?: Event) {
+  const eTag = getParentETag(event)
   if (!eTag) {
-    const aTag = getParentAddressableEventTag(event)
+    const aTag = getParentATag(event)
     if (!aTag) return undefined
 
-    return generateEventIdFromATag(aTag)
+    return generateBech32IdFromATag(aTag)
   }
 
-  return generateEventIdFromETag(eTag)
+  return generateBech32IdFromETag(eTag)
 }
 
-export function getRootEventTag(event?: Event) {
+export function getRootETag(event?: Event) {
   if (!event || ![kinds.ShortTextNote, ExtendedKind.COMMENT].includes(event.kind)) return undefined
 
   if (event.kind === ExtendedKind.COMMENT) {
     return event.tags.find(tagNameEquals('E'))
   }
 
-  let tag = event.tags.find(isRootETag)
+  let tag = event.tags.find(([tagName, , , marker]) => {
+    return tagName === 'e' && marker === 'root'
+  })
   if (!tag) {
-    const embeddedEventIds = extractEmbeddedEventIds(event)
+    const embeddedEventIds = getEmbeddedNoteBech32Ids(event)
     tag = event.tags.find(
       ([tagName, tagValue]) => tagName === 'e' && !!tagValue && !embeddedEventIds.includes(tagValue)
     )
@@ -124,41 +104,37 @@ export function getRootEventTag(event?: Event) {
   return tag
 }
 
-export function getRootAddressableEventTag(event?: Event) {
+export function getRootATag(event?: Event) {
   if (!event || event.kind !== ExtendedKind.COMMENT) return undefined
 
   return event.tags.find(tagNameEquals('A'))
 }
 
 export function getRootEventHexId(event?: Event) {
-  const tag = getRootEventTag(event)
+  const tag = getRootETag(event)
   return tag?.[1]
 }
 
-export function getRootEventId(event?: Event) {
-  const tag = getRootEventTag(event)
-  if (!tag) {
-    const aTag = getRootAddressableEventTag(event)
+export function getRootBech32Id(event?: Event) {
+  const eTag = getRootETag(event)
+  if (!eTag) {
+    const aTag = getRootATag(event)
     if (!aTag) return undefined
 
-    return generateEventIdFromATag(aTag)
+    return generateBech32IdFromATag(aTag)
   }
 
-  return generateEventIdFromETag(tag)
-}
-
-export function isReplaceable(kind: number) {
-  return kinds.isReplaceableKind(kind) || kinds.isAddressableKind(kind)
+  return generateBech32IdFromETag(eTag)
 }
 
-export function getEventCoordinate(event: Event) {
+export function getReplaceableEventCoordinate(event: Event) {
   const d = event.tags.find(tagNameEquals('d'))?.[1]
   return d ? `${event.kind}:${event.pubkey}:${d}` : `${event.kind}:${event.pubkey}`
 }
 
-export function getSharableEventId(event: Event) {
+export function getNoteBech32Id(event: Event) {
   const hints = client.getEventHints(event.id).slice(0, 2)
-  if (isReplaceable(event.kind)) {
+  if (isReplaceableEvent(event.kind)) {
     const identifier = event.tags.find(tagNameEquals('d'))?.[1] ?? ''
     return nip19.naddrEncode({ pubkey: event.pubkey, kind: event.kind, identifier, relays: hints })
   }
@@ -169,289 +145,10 @@ export function getUsingClient(event: Event) {
   return event.tags.find(tagNameEquals('client'))?.[1]
 }
 
-export function getRelayListFromRelayListEvent(event?: Event) {
-  if (!event) {
-    return { write: BIG_RELAY_URLS, read: BIG_RELAY_URLS, originalRelays: [] }
-  }
-
-  const torBrowserDetected = isTorBrowser()
-  const relayList = { write: [], read: [], originalRelays: [] } as TRelayList
-  event.tags.filter(tagNameEquals('r')).forEach(([, url, type]) => {
-    if (!url || !isWebsocketUrl(url)) return
-
-    const normalizedUrl = normalizeUrl(url)
-    if (!normalizedUrl) return
-
-    const scope = type === 'read' ? 'read' : type === 'write' ? 'write' : 'both'
-    relayList.originalRelays.push({ url: normalizedUrl, scope })
-
-    // Filter out .onion URLs if not using Tor browser
-    if (normalizedUrl.endsWith('.onion/') && !torBrowserDetected) return
-
-    if (type === 'write') {
-      relayList.write.push(normalizedUrl)
-    } else if (type === 'read') {
-      relayList.read.push(normalizedUrl)
-    } else {
-      relayList.write.push(normalizedUrl)
-      relayList.read.push(normalizedUrl)
-    }
-  })
-
-  // If there are too many relays, use the default BIG_RELAY_URLS
-  // Because they don't know anything about relays, their settings cannot be trusted
-  return {
-    write: relayList.write.length && relayList.write.length <= 8 ? relayList.write : BIG_RELAY_URLS,
-    read: relayList.read.length && relayList.write.length <= 8 ? relayList.read : BIG_RELAY_URLS,
-    originalRelays: relayList.originalRelays
-  }
-}
-
-export function getProfileFromProfileEvent(event: Event) {
-  try {
-    const profileObj = JSON.parse(event.content)
-    const username =
-      profileObj.display_name?.trim() ||
-      profileObj.name?.trim() ||
-      profileObj.nip05?.split('@')[0]?.trim()
-    return {
-      pubkey: event.pubkey,
-      npub: pubkeyToNpub(event.pubkey) ?? '',
-      banner: profileObj.banner,
-      avatar: profileObj.picture,
-      username: username || formatPubkey(event.pubkey),
-      original_username: username,
-      nip05: profileObj.nip05,
-      about: profileObj.about,
-      website: profileObj.website ? normalizeHttpUrl(profileObj.website) : undefined,
-      lud06: profileObj.lud06,
-      lud16: profileObj.lud16,
-      lightningAddress: getLightningAddressFromProfile(profileObj),
-      created_at: event.created_at
-    }
-  } catch (err) {
-    console.error(err)
-    return {
-      pubkey: event.pubkey,
-      npub: pubkeyToNpub(event.pubkey) ?? '',
-      username: formatPubkey(event.pubkey)
-    }
-  }
-}
-
-export function getRelaySetFromRelaySetEvent(event: Event): TRelaySet {
-  const id = getReplaceableEventIdentifier(event)
-  const relayUrls = event.tags
-    .filter(tagNameEquals('relay'))
-    .map((tag) => tag[1])
-    .filter((url) => url && isWebsocketUrl(url))
-    .map((url) => normalizeUrl(url))
-
-  let name = event.tags.find(tagNameEquals('title'))?.[1]
-  if (!name) {
-    name = id
-  }
-
-  return { id, name, relayUrls }
-}
-
-export async function extractMentions(content: string, parentEvent?: Event) {
-  const parentEventPubkey = parentEvent ? parentEvent.pubkey : undefined
-  const pubkeys: string[] = []
-  const relatedPubkeys: string[] = []
-  const matches = content.match(
-    /nostr:(npub1[a-z0-9]{58}|nprofile1[a-z0-9]+|note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g
-  )
-
-  const addToSet = (arr: string[], pubkey: string) => {
-    if (pubkey === parentEventPubkey) return
-    if (!arr.includes(pubkey)) arr.push(pubkey)
-  }
-
-  for (const m of matches || []) {
-    try {
-      const id = m.split(':')[1]
-      const { type, data } = nip19.decode(id)
-      if (type === 'nprofile') {
-        addToSet(pubkeys, data.pubkey)
-      } else if (type === 'npub') {
-        addToSet(pubkeys, data)
-      } else if (['nevent', 'note'].includes(type)) {
-        const event = await client.fetchEvent(id)
-        if (event) {
-          addToSet(pubkeys, event.pubkey)
-        }
-      }
-    } catch (e) {
-      console.error(e)
-    }
-  }
-
-  if (parentEvent) {
-    parentEvent.tags.forEach(([tagName, tagValue]) => {
-      if (['p', 'P'].includes(tagName) && !!tagValue) {
-        addToSet(relatedPubkeys, tagValue)
-      }
-    })
-  }
-
-  return {
-    pubkeys,
-    relatedPubkeys: relatedPubkeys.filter((p) => !pubkeys.includes(p)),
-    parentEventPubkey
-  }
-}
-
-export async function extractRelatedEventIds(content: string, parentEvent?: Event) {
-  const quoteEventIds: string[] = []
-  let rootETag: string[] = []
-  let parentETag: string[] = []
-  const matches = content.match(/nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g)
-
-  const addToSet = (arr: string[], item: string) => {
-    if (!arr.includes(item)) arr.push(item)
-  }
-
-  for (const m of matches || []) {
-    try {
-      const id = m.split(':')[1]
-      const { type, data } = nip19.decode(id)
-      if (type === 'nevent') {
-        addToSet(quoteEventIds, data.id)
-      } else if (type === 'note') {
-        addToSet(quoteEventIds, data)
-      }
-    } catch (e) {
-      console.error(e)
-    }
-  }
-
-  if (parentEvent) {
-    const rootEventTag = getRootEventTag(parentEvent)
-    if (rootEventTag) {
-      parentETag = [
-        'e',
-        parentEvent.id,
-        client.getEventHint(parentEvent.id),
-        'reply',
-        parentEvent.pubkey
-      ]
-
-      const [, rootEventHexId, hint, , rootEventPubkey] = rootEventTag
-      if (rootEventPubkey) {
-        rootETag = [
-          'e',
-          rootEventHexId,
-          hint ?? client.getEventHint(rootEventHexId),
-          'root',
-          rootEventPubkey
-        ]
-      } else {
-        const rootEventId = generateEventIdFromETag(rootEventTag)
-        const rootEvent = rootEventId ? await client.fetchEvent(rootEventId) : undefined
-        rootETag = rootEvent
-          ? ['e', rootEvent.id, hint ?? client.getEventHint(rootEvent.id), 'root', rootEvent.pubkey]
-          : ['e', rootEventHexId, hint ?? client.getEventHint(rootEventHexId), 'root']
-      }
-    } else {
-      // reply to root event
-      rootETag = [
-        'e',
-        parentEvent.id,
-        client.getEventHint(parentEvent.id),
-        'root',
-        parentEvent.pubkey
-      ]
-    }
-  }
-
-  return {
-    quoteEventIds,
-    rootETag,
-    parentETag
-  }
-}
-
-export async function extractCommentMentions(content: string, parentEvent: Event) {
-  const quoteEventIds: string[] = []
-  const parentEventIsReplaceable = isReplaceable(parentEvent.kind)
-  const rootCoordinateTag =
-    parentEvent.kind === ExtendedKind.COMMENT
-      ? parentEvent.tags.find(tagNameEquals('A'))
-      : isReplaceable(parentEvent.kind)
-        ? ['A', getEventCoordinate(parentEvent), client.getEventHint(parentEvent.id)]
-        : undefined
-  const rootEventId =
-    parentEvent.kind === ExtendedKind.COMMENT
-      ? parentEvent.tags.find(tagNameEquals('E'))?.[1]
-      : parentEvent.id
-  const rootKind =
-    parentEvent.kind === ExtendedKind.COMMENT
-      ? parentEvent.tags.find(tagNameEquals('K'))?.[1]
-      : parentEvent.kind
-  const rootPubkey =
-    parentEvent.kind === ExtendedKind.COMMENT
-      ? parentEvent.tags.find(tagNameEquals('P'))?.[1]
-      : parentEvent.pubkey
-  const rootUrl =
-    parentEvent.kind === ExtendedKind.COMMENT
-      ? parentEvent.tags.find(tagNameEquals('I'))?.[1]
-      : undefined
-
-  const parentEventId = parentEvent.id
-  const parentCoordinate = parentEventIsReplaceable ? getEventCoordinate(parentEvent) : undefined
-  const parentKind = parentEvent.kind
-  const parentPubkey = parentEvent.pubkey
-
-  const addToSet = (arr: string[], item: string) => {
-    if (!arr.includes(item)) arr.push(item)
-  }
-
-  const matches = content.match(/nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g)
-  for (const m of matches || []) {
-    try {
-      const id = m.split(':')[1]
-      const { type, data } = nip19.decode(id)
-      if (type === 'nevent') {
-        addToSet(quoteEventIds, data.id)
-      } else if (type === 'note') {
-        addToSet(quoteEventIds, data)
-      }
-    } catch (e) {
-      console.error(e)
-    }
-  }
-
-  return {
-    quoteEventIds,
-    rootEventId,
-    rootCoordinateTag,
-    rootKind,
-    rootPubkey,
-    rootUrl,
-    parentEventId,
-    parentCoordinate,
-    parentKind,
-    parentPubkey
-  }
-}
-
-export function extractHashtags(content: string) {
-  const hashtags: string[] = []
-  const matches = content.match(/#[\p{L}\p{N}\p{M}]+/gu)
-  matches?.forEach((m) => {
-    const hashtag = m.slice(1).toLowerCase()
-    if (hashtag) {
-      hashtags.push(hashtag)
-    }
-  })
-  return hashtags
-}
-
-export function extractImageInfosFromEventTags(event: Event) {
+export function getImageInfosFromEvent(event: Event) {
   const images: TImageInfo[] = []
   event.tags.forEach((tag) => {
-    const imageInfo = extractImageInfoFromTag(tag, event.pubkey)
+    const imageInfo = getImageInfoFromImetaTag(tag, event.pubkey)
     if (imageInfo) {
       images.push(imageInfo)
     }
@@ -459,116 +156,26 @@ export function extractImageInfosFromEventTags(event: Event) {
   return images
 }
 
-export function extractImagesFromContent(content: string) {
-  const images = content.match(/https?:\/\/[^\s"']+\.(jpg|jpeg|png|gif|webp|heic)/gi)
-  let contentWithoutImages = content
-  images?.forEach((url) => {
-    contentWithoutImages = contentWithoutImages.replace(url, '').trim()
-  })
-  contentWithoutImages = contentWithoutImages.replace(/\n{3,}/g, '\n\n').trim()
-  return { images, contentWithoutImages }
-}
-
-export function extractEmbeddedNotesFromContent(content: string) {
-  let c = content
-  const embeddedNotes: string[] = []
-  const embeddedNoteRegex = /nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+|naddr1[a-z0-9]+)/g
-  ;(c.match(embeddedNoteRegex) || []).forEach((note) => {
-    c = c.replace(note, '').trim()
-    embeddedNotes.push(note)
-  })
-
-  c = c.replace(/\n{3,}/g, '\n\n').trim()
-
-  return { embeddedNotes, contentWithoutEmbeddedNotes: c }
-}
-
-export function extractZapInfoFromReceipt(receiptEvent: Event) {
-  if (receiptEvent.kind !== kinds.Zap) return null
-
-  let senderPubkey: string | undefined
-  let recipientPubkey: string | undefined
-  let originalEventId: string | undefined
-  let eventId: string | undefined
-  let invoice: string | undefined
-  let amount: number | undefined
-  let comment: string | undefined
-  let description: string | undefined
-  let preimage: string | undefined
-  try {
-    receiptEvent.tags.forEach((tag) => {
-      const [tagName, tagValue] = tag
-      switch (tagName) {
-        case 'P':
-          senderPubkey = tagValue
-          break
-        case 'p':
-          recipientPubkey = tagValue
-          break
-        case 'e':
-          originalEventId = tag[1]
-          eventId = generateEventIdFromETag(tag)
-          break
-        case 'bolt11':
-          invoice = tagValue
-          break
-        case 'description':
-          description = tagValue
-          break
-        case 'preimage':
-          preimage = tagValue
-          break
-      }
-    })
-    if (!recipientPubkey || !invoice) return null
-    amount = invoice ? getAmountFromInvoice(invoice) : 0
-    if (description) {
-      try {
-        const zapRequest = JSON.parse(description)
-        comment = zapRequest.content
-        if (!senderPubkey) {
-          senderPubkey = zapRequest.pubkey
-        }
-      } catch {
-        // ignore
-      }
-    }
-
-    return {
-      senderPubkey,
-      recipientPubkey,
-      eventId,
-      originalEventId,
-      invoice,
-      amount,
-      comment,
-      preimage
-    }
-  } catch {
-    return null
-  }
-}
-
-export function extractEmbeddedEventIds(event: Event) {
-  const cache = EVENT_EMBEDDED_EVENT_IDS_CACHE.get(event.id)
+export function getEmbeddedNoteBech32Ids(event: Event) {
+  const cache = EVENT_EMBEDDED_NOTES_CACHE.get(event.id)
   if (cache) return cache
 
-  const embeddedEventIds: string[] = []
+  const embeddedNoteBech32Ids: string[] = []
   const embeddedNoteRegex = /nostr:(note1[a-z0-9]{58}|nevent1[a-z0-9]+)/g
   ;(event.content.match(embeddedNoteRegex) || []).forEach((note) => {
     try {
       const { type, data } = nip19.decode(note.split(':')[1])
       if (type === 'nevent') {
-        embeddedEventIds.push(data.id)
+        embeddedNoteBech32Ids.push(data.id)
       } else if (type === 'note') {
-        embeddedEventIds.push(data)
+        embeddedNoteBech32Ids.push(data)
       }
     } catch {
       // ignore
     }
   })
-  EVENT_EMBEDDED_EVENT_IDS_CACHE.set(event.id, embeddedEventIds)
-  return embeddedEventIds
+  EVENT_EMBEDDED_NOTES_CACHE.set(event.id, embeddedNoteBech32Ids)
+  return embeddedNoteBech32Ids
 }
 
 export function getLatestEvent(events: Event[]) {
@@ -579,22 +186,6 @@ export function getReplaceableEventIdentifier(event: Event) {
   return event.tags.find(tagNameEquals('d'))?.[1] ?? ''
 }
 
-export function extractEmojiInfosFromTags(tags: string[][] = []) {
-  return tags
-    .map((tag) => {
-      if (tag.length < 3 || tag[0] !== 'emoji') return null
-      return { shortcode: tag[1], url: tag[2] }
-    })
-    .filter(Boolean) as TEmoji[]
-}
-
-export function extractServersFromTags(tags: string[][] = []) {
-  return tags
-    .filter(tagNameEquals('server'))
-    .map(([, url]) => (url ? normalizeHttpUrl(url) : ''))
-    .filter(Boolean)
-}
-
 export function createFakeEvent(event: Partial<Event>): Event {
   return {
     id: '',
@@ -607,106 +198,3 @@ export function createFakeEvent(event: Partial<Event>): Event {
     ...event
   }
 }
-
-export function getLongFormArticleMetadata(event: Event) {
-  let title: string | undefined
-  let summary: string | undefined
-  let image: string | undefined
-  const tags = new Set<string>()
-
-  event.tags.forEach(([tagName, tagValue]) => {
-    if (tagName === 'title') {
-      title = tagValue
-    } else if (tagName === 'summary') {
-      summary = tagValue
-    } else if (tagName === 'image') {
-      image = tagValue
-    } else if (tagName === 't' && tagValue && tags.size < 6) {
-      tags.add(tagValue.toLocaleLowerCase())
-    }
-  })
-
-  if (!title) {
-    title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title'
-  }
-
-  return { title, summary, image, tags: Array.from(tags) }
-}
-
-export function getLiveEventMetadata(event: Event) {
-  let title: string | undefined
-  let summary: string | undefined
-  let image: string | undefined
-  let status: string | undefined
-  const tags = new Set<string>()
-
-  event.tags.forEach(([tagName, tagValue]) => {
-    if (tagName === 'title') {
-      title = tagValue
-    } else if (tagName === 'summary') {
-      summary = tagValue
-    } else if (tagName === 'image') {
-      image = tagValue
-    } else if (tagName === 'status') {
-      status = tagValue
-    } else if (tagName === 't' && tagValue && tags.size < 6) {
-      tags.add(tagValue.toLocaleLowerCase())
-    }
-  })
-
-  if (!title) {
-    title = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no title'
-  }
-
-  return { title, summary, image, status, tags: Array.from(tags) }
-}
-
-export function getGroupMetadata(event: Event) {
-  let d: string | undefined
-  let name: string | undefined
-  let about: string | undefined
-  let picture: string | undefined
-  const tags = new Set<string>()
-
-  event.tags.forEach(([tagName, tagValue]) => {
-    if (tagName === 'name') {
-      name = tagValue
-    } else if (tagName === 'about') {
-      about = tagValue
-    } else if (tagName === 'picture') {
-      picture = tagValue
-    } else if (tagName === 't' && tagValue) {
-      tags.add(tagValue.toLocaleLowerCase())
-    } else if (tagName === 'd') {
-      d = tagValue
-    }
-  })
-
-  if (!name) {
-    name = d ?? 'no name'
-  }
-
-  return { d, name, about, picture, tags: Array.from(tags) }
-}
-
-export function getCommunityDefinition(event: Event) {
-  let name: string | undefined
-  let description: string | undefined
-  let image: string | undefined
-
-  event.tags.forEach(([tagName, tagValue]) => {
-    if (tagName === 'name') {
-      name = tagValue
-    } else if (tagName === 'description') {
-      description = tagValue
-    } else if (tagName === 'image') {
-      image = tagValue
-    }
-  })
-
-  if (!name) {
-    name = event.tags.find(tagNameEquals('d'))?.[1] ?? 'no name'
-  }
-
-  return { name, description, image }
-}
diff --git a/src/lib/lightning.ts b/src/lib/lightning.ts
index 7f019eb..94b5d95 100644
--- a/src/lib/lightning.ts
+++ b/src/lib/lightning.ts
@@ -1,6 +1,6 @@
 import { TProfile } from '@/types'
 import { Invoice } from '@getalby/lightning-tools'
-import { isEmail } from './common'
+import { isEmail } from './utils'
 
 export function getAmountFromInvoice(invoice: string): number {
   const _invoice = new Invoice({ pr: invoice }) // TODO: need to validate
diff --git a/src/lib/link.ts b/src/lib/link.ts
index 78ca19e..847aca6 100644
--- a/src/lib/link.ts
+++ b/src/lib/link.ts
@@ -1,11 +1,10 @@
 import { Event, nip19 } from 'nostr-tools'
-import { getSharableEventId } from './event'
-import { generateEventId } from './tag'
+import { getNoteBech32Id } from './event'
 
 export const toHome = () => '/'
-export const toNote = (eventOrId: Pick<Event, 'id' | 'pubkey'> | string) => {
+export const toNote = (eventOrId: Event | string) => {
   if (typeof eventOrId === 'string') return `/notes/${eventOrId}`
-  const nevent = generateEventId(eventOrId)
+  const nevent = getNoteBech32Id(eventOrId)
   return `/notes/${nevent}`
 }
 export const toNoteList = ({
@@ -59,12 +58,6 @@ export const toProfileEditor = () => '/profile-editor'
 export const toRelay = (url: string) => `/relays/${encodeURIComponent(url)}`
 export const toMuteList = () => '/mutes'
 
-export const toHablaLongFormArticle = (event: Event) => {
-  return `https://habla.news/a/${getSharableEventId(event)}`
-}
-export const toZapStreamLiveEvent = (event: Event) => {
-  return `https://zap.stream/${getSharableEventId(event)}`
-}
 export const toChachiChat = (relay: string, d: string) => {
   return `https://chachi.chat/${relay.replace(/^wss?:\/\//, '').replace(/\/$/, '')}/${d}`
 }
diff --git a/src/lib/tag.ts b/src/lib/tag.ts
index 23edc75..1554ff1 100644
--- a/src/lib/tag.ts
+++ b/src/lib/tag.ts
@@ -1,26 +1,22 @@
-import client from '@/services/client.service'
-import { TImageInfo } from '@/types'
+import { TEmoji, TImageInfo } from '@/types'
 import { isBlurhashValid } from 'blurhash'
-import { Event, nip19 } from 'nostr-tools'
+import { nip19 } from 'nostr-tools'
 import { isValidPubkey } from './pubkey'
+import { normalizeHttpUrl } from './url'
 
-export function tagNameEquals(tagName: string) {
-  return (tag: string[]) => tag[0] === tagName
-}
-
-export function isReplyETag([tagName, , , marker]: string[]) {
-  return tagName === 'e' && marker === 'reply'
-}
-
-export function isRootETag([tagName, , , marker]: string[]) {
-  return tagName === 'e' && marker === 'root'
+export function isSameTag(tag1: string[], tag2: string[]) {
+  if (tag1.length !== tag2.length) return false
+  for (let i = 0; i < tag1.length; i++) {
+    if (tag1[i] !== tag2[i]) return false
+  }
+  return true
 }
 
-export function isMentionETag([tagName, , , marker]: string[]) {
-  return tagName === 'e' && marker === 'mention'
+export function tagNameEquals(tagName: string) {
+  return (tag: string[]) => tag[0] === tagName
 }
 
-export function generateEventIdFromETag(tag: string[]) {
+export function generateBech32IdFromETag(tag: string[]) {
   try {
     const [, id, relay, , author] = tag
     return nip19.neventEncode({ id, relays: relay ? [relay] : undefined, author })
@@ -29,7 +25,7 @@ export function generateEventIdFromETag(tag: string[]) {
   }
 }
 
-export function generateEventIdFromATag(tag: string[]) {
+export function generateBech32IdFromATag(tag: string[]) {
   try {
     const [, coordinate, relay] = tag
     const [kind, pubkey, identifier] = coordinate.split(':')
@@ -44,12 +40,7 @@ export function generateEventIdFromATag(tag: string[]) {
   }
 }
 
-export function generateEventId(event: Pick<Event, 'id' | 'pubkey'>) {
-  const relay = client.getEventHint(event.id)
-  return nip19.neventEncode({ id: event.id, author: event.pubkey, relays: [relay] })
-}
-
-export function extractImageInfoFromTag(tag: string[], pubkey?: string): TImageInfo | null {
+export function getImageInfoFromImetaTag(tag: string[], pubkey?: string): TImageInfo | null {
   if (tag[0] !== 'imeta') return null
   const urlItem = tag.find((item) => item.startsWith('url '))
   const url = urlItem?.slice(4)
@@ -75,7 +66,7 @@ export function extractImageInfoFromTag(tag: string[], pubkey?: string): TImageI
   return image
 }
 
-export function extractPubkeysFromEventTags(tags: string[][]) {
+export function getPubkeysFromPTags(tags: string[][]) {
   return Array.from(
     new Set(
       tags
@@ -87,10 +78,18 @@ export function extractPubkeysFromEventTags(tags: string[][]) {
   )
 }
 
-export function isSameTag(tag1: string[], tag2: string[]) {
-  if (tag1.length !== tag2.length) return false
-  for (let i = 0; i < tag1.length; i++) {
-    if (tag1[i] !== tag2[i]) return false
-  }
-  return true
+export function getEmojiInfosFromEmojiTags(tags: string[][] = []) {
+  return tags
+    .map((tag) => {
+      if (tag.length < 3 || tag[0] !== 'emoji') return null
+      return { shortcode: tag[1], url: tag[2] }
+    })
+    .filter(Boolean) as TEmoji[]
+}
+
+export function getServersFromServerTags(tags: string[][] = []) {
+  return tags
+    .filter(tagNameEquals('server'))
+    .map(([, url]) => (url ? normalizeHttpUrl(url) : ''))
+    .filter(Boolean)
 }
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index b1670d4..2cae3ff 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -49,6 +49,14 @@ export function isInViewport(el: HTMLElement) {
   )
 }
 
+export function isEmail(email: string) {
+  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)
+}
+
+export function isDevEnv() {
+  return process.env.NODE_ENV === 'development'
+}
+
 export function detectLanguage(text?: string): string | null {
   if (!text) {
     return null
diff --git a/src/pages/secondary/NotePage/index.tsx b/src/pages/secondary/NotePage/index.tsx
index de62028..4b5dec2 100644
--- a/src/pages/secondary/NotePage/index.tsx
+++ b/src/pages/secondary/NotePage/index.tsx
@@ -11,7 +11,7 @@ import { Skeleton } from '@/components/ui/skeleton'
 import { ExtendedKind } from '@/constants'
 import { useFetchEvent } from '@/hooks'
 import SecondaryPageLayout from '@/layouts/SecondaryPageLayout'
-import { getParentEventId, getParentEventTag, getRootEventId, isPictureEvent } from '@/lib/event'
+import { getParentBech32Id, getParentETag, getRootBech32Id, isPictureEvent } from '@/lib/event'
 import { toNote, toNoteList } from '@/lib/link'
 import { tagNameEquals } from '@/lib/tag'
 import { cn } from '@/lib/utils'
@@ -24,8 +24,8 @@ import NotFoundPage from '../NotFoundPage'
 const NotePage = forwardRef(({ id, index }: { id?: string; index?: number }, ref) => {
   const { t } = useTranslation()
   const { event, isFetching } = useFetchEvent(id)
-  const parentEventId = useMemo(() => getParentEventId(event), [event])
-  const rootEventId = useMemo(() => getRootEventId(event), [event])
+  const parentEventId = useMemo(() => getParentBech32Id(event), [event])
+  const rootEventId = useMemo(() => getRootBech32Id(event), [event])
   const rootITag = useMemo(
     () => (event?.kind === ExtendedKind.COMMENT ? event.tags.find(tagNameEquals('I')) : undefined),
     [event]
@@ -173,7 +173,7 @@ function ParentNote({
 }
 
 function isConsecutive(rootEvent?: Event, parentEvent?: Event) {
-  const eTag = getParentEventTag(parentEvent)
+  const eTag = getParentETag(parentEvent)
   if (!eTag) return false
 
   return rootEvent?.id === eTag[1]
diff --git a/src/pages/secondary/PostSettingsPage/BlossomServerListSetting.tsx b/src/pages/secondary/PostSettingsPage/BlossomServerListSetting.tsx
index b80bbf5..48e6be8 100644
--- a/src/pages/secondary/PostSettingsPage/BlossomServerListSetting.tsx
+++ b/src/pages/secondary/PostSettingsPage/BlossomServerListSetting.tsx
@@ -4,7 +4,7 @@ import { Input } from '@/components/ui/input'
 import { Separator } from '@/components/ui/separator'
 import { RECOMMENDED_BLOSSOM_SERVERS } from '@/constants'
 import { createBlossomServerListDraftEvent } from '@/lib/draft-event'
-import { extractServersFromTags } from '@/lib/event'
+import { getServersFromServerTags } from '@/lib/tag'
 import { cn } from '@/lib/utils'
 import { useNostr } from '@/providers/NostrProvider'
 import client from '@/services/client.service'
@@ -18,7 +18,7 @@ export default function BlossomServerListSetting() {
   const { pubkey, publish } = useNostr()
   const [blossomServerListEvent, setBlossomServerListEvent] = useState<Event | null>(null)
   const serverUrls = useMemo(() => {
-    return extractServersFromTags(blossomServerListEvent ? blossomServerListEvent.tags : [])
+    return getServersFromServerTags(blossomServerListEvent ? blossomServerListEvent.tags : [])
   }, [blossomServerListEvent])
   const [url, setUrl] = useState('')
   const [removingIndex, setRemovingIndex] = useState(-1)
diff --git a/src/pages/secondary/ProfileEditorPage/index.tsx b/src/pages/secondary/ProfileEditorPage/index.tsx
index 61ba708..1da0882 100644
--- a/src/pages/secondary/ProfileEditorPage/index.tsx
+++ b/src/pages/secondary/ProfileEditorPage/index.tsx
@@ -6,9 +6,9 @@ import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Textarea } from '@/components/ui/textarea'
 import SecondaryPageLayout from '@/layouts/SecondaryPageLayout'
-import { isEmail } from '@/lib/common'
 import { createProfileDraftEvent } from '@/lib/draft-event'
 import { generateImageByPubkey } from '@/lib/pubkey'
+import { isEmail } from '@/lib/utils'
 import { useSecondaryPage } from '@/PageManager'
 import { useNostr } from '@/providers/NostrProvider'
 import { Loader, Upload } from 'lucide-react'
diff --git a/src/pages/secondary/WalletPage/LightningAddressInput.tsx b/src/pages/secondary/WalletPage/LightningAddressInput.tsx
index e1a5ce5..f314940 100644
--- a/src/pages/secondary/WalletPage/LightningAddressInput.tsx
+++ b/src/pages/secondary/WalletPage/LightningAddressInput.tsx
@@ -1,8 +1,8 @@
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
-import { isEmail } from '@/lib/common'
 import { createProfileDraftEvent } from '@/lib/draft-event'
+import { isEmail } from '@/lib/utils'
 import { useNostr } from '@/providers/NostrProvider'
 import { Loader } from 'lucide-react'
 import { useEffect, useState } from 'react'
diff --git a/src/providers/FavoriteRelaysProvider.tsx b/src/providers/FavoriteRelaysProvider.tsx
index ded0755..d381345 100644
--- a/src/providers/FavoriteRelaysProvider.tsx
+++ b/src/providers/FavoriteRelaysProvider.tsx
@@ -1,6 +1,7 @@
 import { BIG_RELAY_URLS, DEFAULT_FAVORITE_RELAYS } from '@/constants'
 import { createFavoriteRelaysDraftEvent, createRelaySetDraftEvent } from '@/lib/draft-event'
-import { getRelaySetFromRelaySetEvent, getReplaceableEventIdentifier } from '@/lib/event'
+import { getReplaceableEventIdentifier } from '@/lib/event'
+import { getRelaySetFromEvent } from '@/lib/event-metadata'
 import { randomString } from '@/lib/random'
 import { isWebsocketUrl, normalizeUrl } from '@/lib/url'
 import client from '@/services/client.service'
@@ -121,7 +122,7 @@ export function FavoriteRelaysProvider({ children }: { children: React.ReactNode
 
   useEffect(() => {
     setRelaySets(
-      relaySetEvents.map((evt) => getRelaySetFromRelaySetEvent(evt)).filter(Boolean) as TRelaySet[]
+      relaySetEvents.map((evt) => getRelaySetFromEvent(evt)).filter(Boolean) as TRelaySet[]
     )
   }, [relaySetEvents])
 
diff --git a/src/providers/FeedProvider.tsx b/src/providers/FeedProvider.tsx
index 4841f40..48b685b 100644
--- a/src/providers/FeedProvider.tsx
+++ b/src/providers/FeedProvider.tsx
@@ -1,5 +1,5 @@
 import { DEFAULT_FAVORITE_RELAYS } from '@/constants'
-import { getRelaySetFromRelaySetEvent } from '@/lib/event'
+import { getRelaySetFromEvent } from '@/lib/event-metadata'
 import { checkAlgoRelay } from '@/lib/relay'
 import { isWebsocketUrl, normalizeUrl } from '@/lib/url'
 import client from '@/services/client.service'
@@ -150,7 +150,7 @@ export function FeedProvider({ children }: { children: React.ReactNode }) {
           relaySetId
         )
         if (storedRelaySetEvent) {
-          relaySet = getRelaySetFromRelaySetEvent(storedRelaySetEvent)
+          relaySet = getRelaySetFromEvent(storedRelaySetEvent)
         }
       }
       if (relaySet) {
diff --git a/src/providers/FollowListProvider.tsx b/src/providers/FollowListProvider.tsx
index 4f063ab..cd77093 100644
--- a/src/providers/FollowListProvider.tsx
+++ b/src/providers/FollowListProvider.tsx
@@ -1,5 +1,5 @@
 import { createFollowListDraftEvent } from '@/lib/draft-event'
-import { extractPubkeysFromEventTags } from '@/lib/tag'
+import { getPubkeysFromPTags } from '@/lib/tag'
 import client from '@/services/client.service'
 import { createContext, useContext, useMemo } from 'react'
 import { useNostr } from './NostrProvider'
@@ -23,7 +23,7 @@ export const useFollowList = () => {
 export function FollowListProvider({ children }: { children: React.ReactNode }) {
   const { pubkey: accountPubkey, followListEvent, publish, updateFollowListEvent } = useNostr()
   const followings = useMemo(
-    () => (followListEvent ? extractPubkeysFromEventTags(followListEvent.tags) : []),
+    () => (followListEvent ? getPubkeysFromPTags(followListEvent.tags) : []),
     [followListEvent]
   )
 
diff --git a/src/providers/MuteListProvider.tsx b/src/providers/MuteListProvider.tsx
index 10a8a5c..f1e4064 100644
--- a/src/providers/MuteListProvider.tsx
+++ b/src/providers/MuteListProvider.tsx
@@ -1,5 +1,5 @@
 import { createMuteListDraftEvent } from '@/lib/draft-event'
-import { extractPubkeysFromEventTags } from '@/lib/tag'
+import { getPubkeysFromPTags } from '@/lib/tag'
 import client from '@/services/client.service'
 import indexedDb from '@/services/indexed-db.service'
 import dayjs from 'dayjs'
@@ -44,9 +44,9 @@ export function MuteListProvider({ children }: { children: React.ReactNode }) {
   } = useNostr()
   const [tags, setTags] = useState<string[][]>([])
   const [privateTags, setPrivateTags] = useState<string[][]>([])
-  const publicMutePubkeySet = useMemo(() => new Set(extractPubkeysFromEventTags(tags)), [tags])
+  const publicMutePubkeySet = useMemo(() => new Set(getPubkeysFromPTags(tags)), [tags])
   const privateMutePubkeySet = useMemo(
-    () => new Set(extractPubkeysFromEventTags(privateTags)),
+    () => new Set(getPubkeysFromPTags(privateTags)),
     [privateTags]
   )
   const mutePubkeys = useMemo(() => {
diff --git a/src/providers/NostrProvider/index.tsx b/src/providers/NostrProvider/index.tsx
index 69f6405..1b4a49f 100644
--- a/src/providers/NostrProvider/index.tsx
+++ b/src/providers/NostrProvider/index.tsx
@@ -1,12 +1,8 @@
 import LoginDialog from '@/components/LoginDialog'
 import { ApplicationDataKey, BIG_RELAY_URLS, ExtendedKind } from '@/constants'
 import { createSeenNotificationsAtDraftEvent } from '@/lib/draft-event'
-import {
-  getLatestEvent,
-  getProfileFromProfileEvent,
-  getRelayListFromRelayListEvent,
-  getReplaceableEventIdentifier
-} from '@/lib/event'
+import { getLatestEvent, getReplaceableEventIdentifier } from '@/lib/event'
+import { getProfileFromEvent, getRelayListFromEvent } from '@/lib/event-metadata'
 import { formatPubkey, isValidPubkey, pubkeyToNpub } from '@/lib/pubkey'
 import client from '@/services/client.service'
 import indexedDb from '@/services/indexed-db.service'
@@ -172,11 +168,11 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         indexedDb.getReplaceableEvent(account.pubkey, ExtendedKind.FAVORITE_RELAYS)
       ])
       if (storedRelayListEvent) {
-        setRelayList(getRelayListFromRelayListEvent(storedRelayListEvent))
+        setRelayList(getRelayListFromEvent(storedRelayListEvent))
       }
       if (storedProfileEvent) {
         setProfileEvent(storedProfileEvent)
-        setProfile(getProfileFromProfileEvent(storedProfileEvent))
+        setProfile(getProfileFromEvent(storedProfileEvent))
       }
       if (storedFollowListEvent) {
         setFollowListEvent(storedFollowListEvent)
@@ -196,7 +192,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         authors: [account.pubkey]
       })
       const relayListEvent = getLatestEvent(relayListEvents) ?? storedRelayListEvent
-      const relayList = getRelayListFromRelayListEvent(relayListEvent)
+      const relayList = getRelayListFromEvent(relayListEvent)
       if (relayListEvent) {
         client.updateRelayListCache(relayListEvent)
         await indexedDb.putReplaceableEvent(relayListEvent)
@@ -237,7 +233,7 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
       )
       if (profileEvent) {
         setProfileEvent(profileEvent)
-        setProfile(getProfileFromProfileEvent(profileEvent))
+        setProfile(getProfileFromEvent(profileEvent))
         await indexedDb.putReplaceableEvent(profileEvent)
       } else if (!storedProfileEvent) {
         setProfile({
@@ -639,13 +635,13 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
 
   const updateRelayListEvent = async (relayListEvent: Event) => {
     const newRelayList = await indexedDb.putReplaceableEvent(relayListEvent)
-    setRelayList(getRelayListFromRelayListEvent(newRelayList))
+    setRelayList(getRelayListFromEvent(newRelayList))
   }
 
   const updateProfileEvent = async (profileEvent: Event) => {
     const newProfileEvent = await indexedDb.putReplaceableEvent(profileEvent)
     setProfileEvent(newProfileEvent)
-    setProfile(getProfileFromProfileEvent(newProfileEvent))
+    setProfile(getProfileFromEvent(newProfileEvent))
   }
 
   const updateFollowListEvent = async (followListEvent: Event) => {
diff --git a/src/providers/ReplyProvider.tsx b/src/providers/ReplyProvider.tsx
index 7feecf7..10b8586 100644
--- a/src/providers/ReplyProvider.tsx
+++ b/src/providers/ReplyProvider.tsx
@@ -1,9 +1,4 @@
-import {
-  getParentAddressableEventTag,
-  getParentEventTag,
-  getRootAddressableEventTag,
-  getRootEventTag
-} from '@/lib/event'
+import { getParentATag, getParentETag, getRootATag, getRootETag } from '@/lib/event'
 import { Event } from 'nostr-tools'
 import { createContext, useCallback, useContext, useState } from 'react'
 
@@ -35,11 +30,11 @@ export function ReplyProvider({ children }: { children: React.ReactNode }) {
       newReplyIdSet.add(reply.id)
 
       let rootId: string | undefined
-      const rootETag = getRootEventTag(reply)
+      const rootETag = getRootETag(reply)
       if (rootETag) {
         rootId = rootETag[1]
       } else {
-        const rootATag = getRootAddressableEventTag(reply)
+        const rootATag = getRootATag(reply)
         if (rootATag) {
           rootId = rootATag[1]
         }
@@ -49,11 +44,11 @@ export function ReplyProvider({ children }: { children: React.ReactNode }) {
       }
 
       let parentId: string | undefined
-      const parentETag = getParentEventTag(reply)
+      const parentETag = getParentETag(reply)
       if (parentETag) {
         parentId = parentETag[1]
       } else {
-        const parentATag = getParentAddressableEventTag(reply)
+        const parentATag = getParentATag(reply)
         if (parentATag) {
           parentId = parentATag[1]
         }
diff --git a/src/services/client.service.ts b/src/services/client.service.ts
index cbad6e0..769f26d 100644
--- a/src/services/client.service.ts
+++ b/src/services/client.service.ts
@@ -1,11 +1,7 @@
 import { BIG_RELAY_URLS, ExtendedKind } from '@/constants'
-import {
-  extractServersFromTags,
-  getProfileFromProfileEvent,
-  getRelayListFromRelayListEvent
-} from '@/lib/event'
+import { getProfileFromEvent, getRelayListFromEvent } from '@/lib/event-metadata'
 import { formatPubkey, pubkeyToNpub, userIdToPubkey } from '@/lib/pubkey'
-import { extractPubkeysFromEventTags } from '@/lib/tag'
+import { getPubkeysFromPTags, getServersFromServerTags } from '@/lib/tag'
 import { isLocalNetworkUrl, isWebsocketUrl, normalizeUrl } from '@/lib/url'
 import { ISigner, TProfile, TRelayList } from '@/types'
 import { sha256 } from '@noble/hashes/sha2'
@@ -716,7 +712,7 @@ class ClientService extends EventTarget {
   async fetchProfile(id: string, skipCache: boolean = false): Promise<TProfile | undefined> {
     const profileEvent = await this.fetchProfileEvent(id, skipCache)
     if (profileEvent) {
-      return getProfileFromProfileEvent(profileEvent)
+      return getProfileFromEvent(profileEvent)
     }
 
     try {
@@ -735,7 +731,7 @@ class ClientService extends EventTarget {
 
     const profileEvents = events.sort((a, b) => b.created_at - a.created_at)
     await Promise.all(profileEvents.map((profile) => this.addUsernameToIndex(profile)))
-    return profileEvents.map((profileEvent) => getProfileFromProfileEvent(profileEvent))
+    return profileEvents.map((profileEvent) => getProfileFromEvent(profileEvent))
   }
 
   async fetchRelayListEvent(pubkey: string) {
@@ -769,7 +765,7 @@ class ClientService extends EventTarget {
 
     return relayEvents.map((event) => {
       if (event) {
-        return getRelayListFromRelayListEvent(event)
+        return getRelayListFromEvent(event)
       }
       return {
         write: BIG_RELAY_URLS,
@@ -821,7 +817,7 @@ class ClientService extends EventTarget {
 
   async fetchFollowings(pubkey: string) {
     const followListEvent = await this.fetchFollowListEvent(pubkey)
-    return followListEvent ? extractPubkeysFromEventTags(followListEvent.tags) : []
+    return followListEvent ? getPubkeysFromPTags(followListEvent.tags) : []
   }
 
   async fetchFollowingFavoriteRelays(pubkey: string) {
@@ -881,7 +877,7 @@ class ClientService extends EventTarget {
 
   async fetchBlossomServerList(pubkey: string) {
     const evt = await this.blossomServerListEventCache.fetch(pubkey)
-    return evt ? extractServersFromTags(evt.tags) : []
+    return evt ? getServersFromServerTags(evt.tags) : []
   }
 
   async fetchBlossomServerListEvent(pubkey: string) {
diff --git a/src/services/lightning.service.ts b/src/services/lightning.service.ts
index 4b6265f..1900950 100644
--- a/src/services/lightning.service.ts
+++ b/src/services/lightning.service.ts
@@ -1,5 +1,5 @@
 import { BIG_RELAY_URLS, CODY_PUBKEY } from '@/constants'
-import { extractZapInfoFromReceipt } from '@/lib/event'
+import { getZapInfoFromEvent } from '@/lib/event-metadata'
 import { TProfile } from '@/types'
 import {
   init,
@@ -141,7 +141,7 @@ class LightningService {
           filter,
           {
             onevent: (evt) => {
-              const info = extractZapInfoFromReceipt(evt)
+              const info = getZapInfoFromEvent(evt)
               if (!info) return
 
               if (info.invoice === pr) {
@@ -154,7 +154,10 @@ class LightningService {
     })
   }
 
-  async payInvoice(invoice: string, closeOuterModel?: () => void): Promise<{ preimage: string; invoice: string } | null> {
+  async payInvoice(
+    invoice: string,
+    closeOuterModel?: () => void
+  ): Promise<{ preimage: string; invoice: string } | null> {
     if (this.provider) {
       const { preimage } = await this.provider.sendPayment(invoice)
       closeOuterModel?.()
@@ -189,7 +192,7 @@ class LightningService {
     events.sort((a, b) => b.created_at - a.created_at)
     const map = new Map<string, { pubkey: string; amount: number; comment?: string }>()
     events.forEach((event) => {
-      const info = extractZapInfoFromReceipt(event)
+      const info = getZapInfoFromEvent(event)
       if (!info || info.eventId || !info.senderPubkey || info.senderPubkey === CODY_PUBKEY) return
 
       const { amount, comment, senderPubkey } = info
diff --git a/src/services/note-stats.service.ts b/src/services/note-stats.service.ts
index 2550721..929069a 100644
--- a/src/services/note-stats.service.ts
+++ b/src/services/note-stats.service.ts
@@ -1,5 +1,5 @@
-import { extractEmojiInfosFromTags, extractZapInfoFromReceipt } from '@/lib/event'
-import { tagNameEquals } from '@/lib/tag'
+import { getZapInfoFromEvent } from '@/lib/event-metadata'
+import { getEmojiInfosFromEmojiTags, tagNameEquals } from '@/lib/tag'
 import client from '@/services/client.service'
 import { TEmoji } from '@/types'
 import dayjs from 'dayjs'
@@ -171,7 +171,7 @@ class NoteStatsService {
     if (!emoji) return
 
     if (/^:[a-zA-Z0-9_-]+:$/.test(evt.content)) {
-      const emojiInfos = extractEmojiInfosFromTags(evt.tags)
+      const emojiInfos = getEmojiInfosFromEmojiTags(evt.tags)
       const shortcode = evt.content.split(':')[1]
       const emojiInfo = emojiInfos.find((info) => info.shortcode === shortcode)
       if (emojiInfo) {
@@ -199,7 +199,7 @@ class NoteStatsService {
   }
 
   private addZapByEvent(evt: Event) {
-    const info = extractZapInfoFromReceipt(evt)
+    const info = getZapInfoFromEvent(evt)
     if (!info) return
     const { originalEventId, senderPubkey, invoice, amount, comment } = info
     if (!originalEventId || !senderPubkey) return