refactor: 🏗️

src/App.tsx

@@ -17,14 +17,14 @@ export default function App(): JSX.Element {
       <ScreenSizeProvider>
         <NostrProvider>
           <RelaySetsProvider>
-            <FeedProvider>
-              <FollowListProvider>
+            <FollowListProvider>
+              <FeedProvider>
                 <NoteStatsProvider>
                   <PageManager />
                   <Toaster />
                 </NoteStatsProvider>
-              </FollowListProvider>
-            </FeedProvider>
+              </FeedProvider>
+            </FollowListProvider>
           </RelaySetsProvider>
         </NostrProvider>
       </ScreenSizeProvider>

src/providers/FeedProvider.tsx

@@ -4,6 +4,7 @@ import storage from '@/services/storage.service'
 import { TFeedType } from '@/types'
 import { Filter } from 'nostr-tools'
 import { createContext, useContext, useEffect, useState } from 'react'
+import { useFollowList } from './FollowListProvider'
 import { useNostr } from './NostrProvider'
 import { useRelaySets } from './RelaySetsProvider'
 
@@ -31,7 +32,8 @@ export const useFeed = () => {
 }
 
 export function FeedProvider({ children }: { children: React.ReactNode }) {
-  const { pubkey, getRelayList, getFollowings } = useNostr()
+  const { pubkey, getRelayList } = useNostr()
+  const { getFollowings } = useFollowList()
   const { relaySets } = useRelaySets()
   const [feedType, setFeedType] = useState<TFeedType>(storage.getFeedType())
   const [relayUrls, setRelayUrls] = useState<string[]>([])

src/providers/FollowListProvider.tsx

@@ -1,6 +1,7 @@
 import { createFollowListDraftEvent } from '@/lib/draft-event'
-import { tagNameEquals } from '@/lib/tag'
+import { getFollowingsFromFollowListEvent } from '@/lib/event'
 import client from '@/services/client.service'
+import storage from '@/services/storage.service'
 import { Event } from 'nostr-tools'
 import { createContext, useContext, useEffect, useMemo, useState } from 'react'
 import { useNostr } from './NostrProvider'
@@ -9,6 +10,7 @@ type TFollowListContext = {
   followListEvent: Event | undefined
   followings: string[]
   isFetching: boolean
+  getFollowings: (pubkey: string) => Promise<string[]>
   follow: (pubkey: string) => Promise<void>
   unfollow: (pubkey: string) => Promise<void>
 }
@@ -24,20 +26,13 @@ export const useFollowList = () => {
 }
 
 export function FollowListProvider({ children }: { children: React.ReactNode }) {
-  const { pubkey: accountPubkey, publish, updateFollowListEvent } = useNostr()
+  const { pubkey: accountPubkey, publish } = useNostr()
   const [followListEvent, setFollowListEvent] = useState<Event | undefined>(undefined)
   const [isFetching, setIsFetching] = useState(true)
-  const followings = useMemo(() => {
-    return Array.from(
-      new Set(
-        followListEvent?.tags
-          .filter(tagNameEquals('p'))
-          .map(([, pubkey]) => pubkey)
-          .filter(Boolean)
-          .reverse() ?? []
-      )
-    )
-  }, [followListEvent])
+  const followings = useMemo(
+    () => (followListEvent ? getFollowingsFromFollowListEvent(followListEvent) : []),
+    [followListEvent]
+  )
 
   useEffect(() => {
     if (!accountPubkey) return
@@ -45,14 +40,26 @@ export function FollowListProvider({ children }: { children: React.ReactNode })
     const init = async () => {
       setIsFetching(true)
       setFollowListEvent(undefined)
+      const storedFollowListEvent = storage.getAccountFollowListEvent(accountPubkey)
+      if (storedFollowListEvent) {
+        setFollowListEvent(storedFollowListEvent)
+      }
       const event = await client.fetchFollowListEvent(accountPubkey)
-      setFollowListEvent(event)
+      if (event) {
+        updateFollowListEvent(event)
+      }
       setIsFetching(false)
     }
 
     init()
   }, [accountPubkey])
 
+  const updateFollowListEvent = (event: Event) => {
+    const isNew = storage.setAccountFollowListEvent(event)
+    if (!isNew) return
+    setFollowListEvent(event)
+  }
+
   const follow = async (pubkey: string) => {
     if (isFetching || !accountPubkey) return
 
@@ -63,7 +70,6 @@ export function FollowListProvider({ children }: { children: React.ReactNode })
     const newFollowListEvent = await publish(newFollowListDraftEvent)
     client.updateFollowListCache(accountPubkey, newFollowListEvent)
     updateFollowListEvent(newFollowListEvent)
-    setFollowListEvent(newFollowListEvent)
   }
 
   const unfollow = async (pubkey: string) => {
@@ -76,7 +82,14 @@ export function FollowListProvider({ children }: { children: React.ReactNode })
     const newFollowListEvent = await publish(newFollowListDraftEvent)
     client.updateFollowListCache(accountPubkey, newFollowListEvent)
     updateFollowListEvent(newFollowListEvent)
-    setFollowListEvent(newFollowListEvent)
+  }
+
+  const getFollowings = async (pubkey: string) => {
+    const followListEvent = storage.getAccountFollowListEvent(pubkey)
+    if (followListEvent) {
+      return getFollowingsFromFollowListEvent(followListEvent)
+    }
+    return await client.fetchFollowings(pubkey)
   }
 
   return (
@@ -85,6 +98,7 @@ export function FollowListProvider({ children }: { children: React.ReactNode })
         followListEvent,
         followings,
         isFetching,
+        getFollowings,
         follow,
         unfollow
       }}

src/providers/NostrProvider/index.tsx

@@ -1,11 +1,7 @@
 import LoginDialog from '@/components/LoginDialog'
 import { BIG_RELAY_URLS } from '@/constants'
 import { useToast } from '@/hooks'
-import {
-  getFollowingsFromFollowListEvent,
-  getProfileFromProfileEvent,
-  getRelayListFromRelayListEvent
-} from '@/lib/event'
+import { getProfileFromProfileEvent, getRelayListFromRelayListEvent } from '@/lib/event'
 import { formatPubkey } from '@/lib/pubkey'
 import client from '@/services/client.service'
 import storage from '@/services/storage.service'
@@ -15,17 +11,16 @@ import { Event, kinds } from 'nostr-tools'
 import * as nip19 from 'nostr-tools/nip19'
 import * as nip49 from 'nostr-tools/nip49'
 import { createContext, useContext, useEffect, useState } from 'react'
+import { useTranslation } from 'react-i18next'
 import { BunkerSigner } from './bunker.signer'
 import { Nip07Signer } from './nip-07.signer'
 import { NsecSigner } from './nsec.signer'
-import { useTranslation } from 'react-i18next'
 
 type TNostrContext = {
   pubkey: string | null
   profile: TProfile | null
   profileEvent: Event | null
   relayList: TRelayList | null
-  followings: string[] | null
   account: TAccountPointer | null
   accounts: TAccountPointer[]
   nsec: string | null
@@ -45,8 +40,6 @@ type TNostrContext = {
   checkLogin: <T>(cb?: () => T) => Promise<T | void>
   getRelayList: (pubkey: string) => Promise<TRelayList>
   updateRelayListEvent: (relayListEvent: Event) => void
-  getFollowings: (pubkey: string) => Promise<string[]>
-  updateFollowListEvent: (followListEvent: Event) => void
   updateProfileEvent: (profileEvent: Event) => void
 }
 
@@ -71,7 +64,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
   const [profile, setProfile] = useState<TProfile | null>(null)
   const [profileEvent, setProfileEvent] = useState<Event | null>(null)
   const [relayList, setRelayList] = useState<TRelayList | null>(null)
-  const [followings, setFollowings] = useState<string[] | null>(null)
 
   useEffect(() => {
     const init = async () => {
@@ -86,7 +78,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
 
   useEffect(() => {
     setRelayList(null)
-    setFollowings(null)
     setProfile(null)
     setProfileEvent(null)
     setNsec(null)
@@ -112,10 +103,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         storedRelayListEvent ? getRelayListFromRelayListEvent(storedRelayListEvent) : null
       )
     }
-    const storedFollowListEvent = storage.getAccountFollowListEvent(account.pubkey)
-    if (storedFollowListEvent) {
-      setFollowings(getFollowingsFromFollowListEvent(storedFollowListEvent))
-    }
     const storedProfileEvent = storage.getAccountProfileEvent(account.pubkey)
     if (storedProfileEvent) {
       setProfileEvent(storedProfileEvent)
@@ -132,17 +119,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
       if (!isNew) return
       setRelayList(getRelayListFromRelayListEvent(relayListEvent))
     })
-    client.fetchFollowListEvent(account.pubkey).then(async (followListEvent) => {
-      if (!followListEvent) {
-        if (storedFollowListEvent) return
-
-        setFollowings([])
-        return
-      }
-      const isNew = storage.setAccountFollowListEvent(followListEvent)
-      if (!isNew) return
-      setFollowings(getFollowingsFromFollowListEvent(followListEvent))
-    })
     client.fetchProfileEvent(account.pubkey).then(async (profileEvent) => {
       if (!profileEvent) {
         if (storedProfileEvent) return
@@ -344,20 +320,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
     setRelayList(getRelayListFromRelayListEvent(relayListEvent))
   }
 
-  const getFollowings = async (pubkey: string) => {
-    const followListEvent = storage.getAccountFollowListEvent(pubkey)
-    if (followListEvent) {
-      return getFollowingsFromFollowListEvent(followListEvent)
-    }
-    return await client.fetchFollowings(pubkey)
-  }
-
-  const updateFollowListEvent = (followListEvent: Event) => {
-    const isNew = storage.setAccountFollowListEvent(followListEvent)
-    if (!isNew) return
-    setFollowings(getFollowingsFromFollowListEvent(followListEvent))
-  }
-
   const updateProfileEvent = (profileEvent: Event) => {
     const isNew = storage.setAccountProfileEvent(profileEvent)
     if (!isNew) return
@@ -373,7 +335,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         profile,
         profileEvent,
         relayList,
-        followings,
         account,
         accounts: storage
           .getAccounts()
@@ -392,8 +353,6 @@ export function NostrProvider({ children }: { children: React.ReactNode }) {
         signEvent,
         getRelayList,
         updateRelayListEvent,
-        getFollowings,
-        updateFollowListEvent,
         updateProfileEvent
       }}
     >

src/services/storage.service.ts

@@ -28,7 +28,7 @@ class StorageService {
   private currentAccount: TAccount | null = null
   private accountRelayListEventMap: Record<string, Event | undefined> = {} // pubkey -> relayListEvent
   private accountFollowListEventMap: Record<string, Event | undefined> = {} // pubkey -> followListEvent
-  private accountProfileEventMap: Record<string, Event> = {} // pubkey -> profileEvent
+  private accountProfileEventMap: Record<string, Event | undefined> = {} // pubkey -> profileEvent
 
   constructor() {
     if (!StorageService.instance) {