src/components/ModCard.tsx

@@ -5,7 +5,8 @@ import { handleModImageError } from '../utils'
 import { ModDetails } from 'types'
 import { getModPageRoute } from 'routes'
 import { kinds, nip19 } from 'nostr-tools'
-import { useDidMount, useNDKContext, useReactions } from 'hooks'
+import { useDidMount, useReactions } from 'hooks'
+import { RelayController } from 'controllers'
 import { toast } from 'react-toastify'
 import { useComments } from 'hooks/useComments'
 
@@ -18,10 +19,10 @@ export const ModCard = React.memo((props: ModDetails) => {
     eTag: props.id,
     aTag: props.aTag
   })
-  const { getTotalZapAmount } = useNDKContext()
 
   useDidMount(() => {
-    getTotalZapAmount(props.author, props.id, props.aTag)
+    RelayController.getInstance()
+      .getTotalZapAmount(props.author, props.id, props.aTag)
       .then((res) => {
         setTotalZappedAmount(res.accumulatedZapAmount)
       })
@@ -50,13 +51,7 @@ export const ModCard = React.memo((props: ModDetails) => {
             src={props.featuredImageUrl}
             onError={handleModImageError}
             className='cMMPicture'
-            alt={`featured image for mod ${props.title}`}
           />
-          {props.nsfw && (
-            <div className='IBMSMSMBSSTagsTag IBMSMSMBSSTagsTagNSFW IBMSMSMBSSTagsTagNSFWCard'>
-              <p>NSFW</p>
-            </div>
-          )}
         </div>
         <div className='cMMBody'>
           <h3 className='cMMBodyTitle'>{props.title}</h3>

src/components/ModForm.tsx

@@ -13,7 +13,8 @@ import { toast } from 'react-toastify'
 import { FixedSizeList as List } from 'react-window'
 import { v4 as uuidv4 } from 'uuid'
 import { T_TAG_VALUE } from '../constants'
-import { useAppSelector, useGames, useNDKContext } from '../hooks'
+import { RelayController } from '../controllers'
+import { useAppSelector, useGames } from '../hooks'
 import { appRoutes, getModPageRoute } from '../routes'
 import '../styles/styles.css'
 import { DownloadUrl, ModDetails, ModFormState } from '../types'
@@ -28,7 +29,6 @@ import {
 } from '../utils'
 import { CheckboxField, InputError, InputField } from './Inputs'
 import { LoadingSpinner } from './LoadingSpinner'
-import { NDKEvent } from '@nostr-dev-kit/ndk'
 
 interface FormErrors {
   game?: string
@@ -54,7 +54,6 @@ type ModFormProps = {
 export const ModForm = ({ existingModData }: ModFormProps) => {
   const location = useLocation()
   const navigate = useNavigate()
-  const { ndk, publish } = useNDKContext()
   const games = useGames()
   const userState = useAppSelector((state) => state.user)
 
@@ -244,8 +243,9 @@ export const ModForm = ({ existingModData }: ModFormProps) => {
       return
     }
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays = await RelayController.getInstance().publish(
+      signedEvent as Event
+    )
 
     // Handle cases where publishing failed or succeeded
     if (publishedOnRelays.length === 0) {
@@ -763,9 +763,8 @@ const GameDropdown = ({
     <div className='inputLabelWrapperMain'>
       <label className='form-label labelMain'>Game</label>
       <p className='labelDescriptionMain'>
-        Can't find the game you're looking for? You can temporarily publish the
-        mod under '(Unlisted Game)' and later edit it with the proper game name
-        once we add it.
+        Can't find the game you're looking for? You can temporarily publish the mod under '(Unlisted Game)' and 
+        later edit it with the proper game name once we add it. 
       </p>
       <div className='dropdown dropdownMain'>
         <div className='inputWrapperMain inputWrapperMainAlt'>
@@ -828,10 +827,8 @@ const GameDropdown = ({
         </div>
         </div>
       {error && <InputError message={error} />}
-      <p className='labelDescriptionMain'>
-        Note: Please mention the game name in the body text of your mod post
-        (e.g., 'This is a mod for Game Name') so we know what to look for and
-        add.
+      <p className='labelDescriptionMain'>Note: Please mention the game name in the body text of your mod post (e.g., 'This is a mod for Game Name') 
+        so we know what to look for and add.
       </p>
     </div>
   )

src/components/ProfileSection.tsx

@@ -4,17 +4,13 @@ import { QRCodeSVG } from 'qrcode.react'
 import { useState } from 'react'
 import { Link } from 'react-router-dom'
 import { toast } from 'react-toastify'
-import {
-  useAppSelector,
-  useBodyScrollDisable,
-  useDidMount,
-  useNDKContext
-} from '../hooks'
+import { RelayController, UserRelaysType } from '../controllers'
+import { useAppSelector, useDidMount, useNDKContext } from '../hooks'
 import { appRoutes, getProfilePageRoute } from '../routes'
 import '../styles/author.css'
 import '../styles/innerPage.css'
 import '../styles/socialPosts.css'
-import { UserProfile, UserRelaysType } from '../types'
+import { UserProfile } from '../types'
 import {
   copyTextToClipboard,
   hexToNpub,
@@ -26,7 +22,6 @@ import {
 import { LoadingSpinner } from './LoadingSpinner'
 import { ZapPopUp } from './Zap'
 import placeholder from '../assets/img/DEGMods Placeholder Img.png'
-import { NDKEvent } from '@nostr-dev-kit/ndk'
 
 type Props = {
   pubkey: string
@@ -259,8 +254,6 @@ export const ProfileQRButtonWithPopUp = ({
 }: QRButtonWithPopUpProps) => {
   const [isOpen, setIsOpen] = useState(false)
 
-  useBodyScrollDisable(isOpen)
-
   const nprofile = nip19.nprofileEncode({
     pubkey
   })
@@ -342,8 +335,6 @@ type ZapButtonWithPopUpProps = {
 const ZapButtonWithPopUp = ({ pubkey }: ZapButtonWithPopUpProps) => {
   const [isOpen, setIsOpen] = useState(false)
 
-  useBodyScrollDisable(isOpen)
-
   return (
     <>
       <div
@@ -377,7 +368,7 @@ type FollowButtonProps = {
 }
 
 const FollowButton = ({ pubkey }: FollowButtonProps) => {
-  const { ndk, fetchEventFromUserRelays, publish } = useNDKContext()
+  const { fetchEventFromUserRelays } = useNDKContext()
   const [isFollowing, setIsFollowing] = useState(false)
 
   const [isLoading, setIsLoading] = useState(false)
@@ -450,8 +441,9 @@ const FollowButton = ({ pubkey }: FollowButtonProps) => {
 
     if (!signedEvent) return false
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays = await RelayController.getInstance().publish(
+      signedEvent as Event
+    )
 
     if (publishedOnRelays.length === 0) {
       toast.error('Failed to publish event on any relay')

src/components/Zap.tsx

@@ -1,4 +1,3 @@
-import { getRelayListForUser } from '@nostr-dev-kit/ndk'
 import { QRCodeSVG } from 'qrcode.react'
 import React, {
   Dispatch,
@@ -10,7 +9,7 @@ import React, {
 } from 'react'
 import Countdown, { CountdownRenderProps } from 'react-countdown'
 import { toast } from 'react-toastify'
-import { ZapController } from '../controllers'
+import { MetadataController, ZapController } from '../controllers'
 import { useAppSelector, useDidMount, useNDKContext } from '../hooks'
 import '../styles/popup.css'
 import { PaymentRequest, UserProfile } from '../types'
@@ -252,7 +251,7 @@ export const ZapPopUp = ({
   setHasZapped,
   handleClose
 }: ZapPopUpProps) => {
-  const { ndk, findMetadata } = useNDKContext()
+  const { findMetadata } = useNDKContext()
   const [isLoading, setIsLoading] = useState(false)
   const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
   const [amount, setAmount] = useState<number>(0)
@@ -301,20 +300,6 @@ export const ZapPopUp = ({
         return null
       }
 
-      // Find the receiver's read relays.
-      const receiverRelays = await getRelayListForUser(receiver, ndk)
-        .then((ndkRelayList) => {
-          if (ndkRelayList) return ndkRelayList.readRelayUrls
-          return [] // Return an empty array if ndkRelayList is undefined
-        })
-        .catch((err) => {
-          console.error(
-            `An error occurred in getting zap receiver's read relays`,
-            err
-          )
-          return [] as string[]
-        })
-
       const zapController = ZapController.getInstance()
 
       setLoadingSpinnerDesc('Creating zap request')
@@ -323,7 +308,6 @@ export const ZapPopUp = ({
           receiverMetadata.lud16,
           amount,
           receiverMetadata.pubkey as string,
-          receiverRelays,
           userHexKey,
           message,
           eventId,
@@ -336,7 +320,7 @@ export const ZapPopUp = ({
         .finally(() => {
           setIsLoading(false)
         })
-    }, [amount, message, userState, receiver, eventId, aTag, ndk, findMetadata])
+    }, [amount, message, userState, receiver, eventId, aTag])
 
   const handleGenerateQRCode = async () => {
     const pr = await generatePaymentRequest()
@@ -498,7 +482,7 @@ export const ZapSplit = ({
   setHasZapped,
   handleClose
 }: ZapSplitProps) => {
-  const { ndk, findMetadata } = useNDKContext()
+  const { findMetadata } = useNDKContext()
   const [isLoading, setIsLoading] = useState(false)
   const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
   const [amount, setAmount] = useState<number>(0)
@@ -518,8 +502,8 @@ export const ZapSplit = ({
       setAuthor(res)
     })
 
-    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
-    findMetadata(adminNpubs[0]).then((res) => {
+    const metadataController = await MetadataController.getInstance()
+    findMetadata(metadataController.adminNpubs[0]).then((res) => {
       setAdmin(res)
     })
   })
@@ -573,30 +557,12 @@ export const ZapSplit = ({
     const invoices = new Map<string, PaymentRequest>()
 
     if (authorShare > 0 && author?.pubkey && author?.lud16) {
-      // Find the receiver's read relays.
-      const authorRelays = await getRelayListForUser(
-        author.pubkey as string,
-        ndk
-      )
-        .then((ndkRelayList) => {
-          if (ndkRelayList) return ndkRelayList.readRelayUrls
-          return [] // Return an empty array if ndkRelayList is undefined
-        })
-        .catch((err) => {
-          console.error(
-            `An error occurred in getting zap receiver's read relays`,
-            err
-          )
-          return [] as string[]
-        })
-
       setLoadingSpinnerDesc('Generating invoice for author')
       const invoice = await zapController
         .getLightningPaymentRequest(
           author.lud16,
           authorShare,
           author.pubkey as string,
-          authorRelays,
           userHexKey,
           message,
           eventId,
@@ -613,27 +579,12 @@ export const ZapSplit = ({
     }
 
     if (adminShare > 0 && admin?.pubkey && admin?.lud16) {
-      // Find the receiver's read relays.
-      const adminRelays = await getRelayListForUser(admin.pubkey as string, ndk)
-        .then((ndkRelayList) => {
-          if (ndkRelayList) return ndkRelayList.readRelayUrls
-          return [] // Return an empty array if ndkRelayList is undefined
-        })
-        .catch((err) => {
-          console.error(
-            `An error occurred in getting zap receiver's read relays`,
-            err
-          )
-          return [] as string[]
-        })
-
       setLoadingSpinnerDesc('Generating invoice for site owner')
       const invoice = await zapController
         .getLightningPaymentRequest(
           admin.lud16,
           adminShare,
           admin.pubkey as string,
-          adminRelays,
           userHexKey,
           message,
           eventId,

src/contexts/NDKContext.tsx

@@ -3,18 +3,17 @@ import NDK, {
   NDKEvent,
   NDKFilter,
   NDKKind,
-  NDKList,
   NDKRelaySet,
   NDKSubscriptionCacheUsage,
-  NDKUser,
-  zapInvoiceFromEvent
+  NDKUser
 } from '@nostr-dev-kit/ndk'
 import NDKCacheAdapterDexie from '@nostr-dev-kit/ndk-cache-dexie'
 import { MOD_FILTER_LIMIT, T_TAG_VALUE } from 'constants.ts'
+import { UserRelaysType } from 'controllers'
 import { Dexie } from 'dexie'
 import { createContext, ReactNode, useEffect, useMemo } from 'react'
 import { toast } from 'react-toastify'
-import { ModDetails, MuteLists, UserProfile, UserRelaysType } from 'types'
+import { ModDetails, UserProfile } from 'types'
 import {
   constructModListFromEvents,
   hexToNpub,
@@ -34,34 +33,23 @@ type FetchModsOptions = {
 interface NDKContextType {
   ndk: NDK
   fetchMods: (opts: FetchModsOptions) => Promise<ModDetails[]>
-  fetchEvents: (filter: NDKFilter) => Promise<NDKEvent[]>
-  fetchEvent: (filter: NDKFilter) => Promise<NDKEvent | null>
+  fetchEvents: (filter: NDKFilter, relayUrls?: string[]) => Promise<NDKEvent[]>
+  fetchEvent: (
+    filter: NDKFilter,
+    relayUrls?: string[]
+  ) => Promise<NDKEvent | null>
+
   fetchEventsFromUserRelays: (
-    filter: NDKFilter | NDKFilter[],
+    filter: NDKFilter,
     hexKey: string,
     userRelaysType: UserRelaysType
   ) => Promise<NDKEvent[]>
   fetchEventFromUserRelays: (
-    filter: NDKFilter | NDKFilter[],
+    filter: NDKFilter,
     hexKey: string,
     userRelaysType: UserRelaysType
   ) => Promise<NDKEvent | null>
   findMetadata: (pubkey: string) => Promise<UserProfile>
-  getTotalZapAmount: (
-    user: string,
-    eTag: string,
-    aTag?: string,
-    currentLoggedInUser?: string
-  ) => Promise<{
-    accumulatedZapAmount: number
-    hasZapped: boolean
-  }>
-  publish: (event: NDKEvent) => Promise<string[]>
-  getNSFWList: () => Promise<string[]>
-  getMuteLists: (pubkey?: string) => Promise<{
-    admin: MuteLists
-    user: MuteLists
-  }>
 }
 
 // Create the context with an initial value of `null`
@@ -84,31 +72,6 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
     }
   }, [])
 
-  const addAdminRelays = async (ndk: NDK) => {
-    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
-    adminNpubs.forEach((npub) => {
-      const hexKey = npubToHex(npub)
-      if (hexKey) {
-        getRelayListForUser(hexKey, ndk)
-          .then((ndkRelayList) => {
-            if (ndkRelayList) {
-              ndkRelayList.bothRelayUrls.forEach((url) =>
-                ndk.addExplicitRelay(url)
-              )
-            }
-          })
-          .catch((err) => {
-            log(
-              true,
-              LogType.Error,
-              `❌ Error occurred in getting the instance of NDKRelayList for npub: ${npub}`,
-              err
-            )
-          })
-      }
-    })
-  }
-
   const ndk = useMemo(() => {
     localStorage.setItem('debug', '*')
     const dexieAdapter = new NDKCacheAdapterDexie({ dbName: 'degmod-db' })
@@ -125,7 +88,6 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
       ],
       cacheAdapter: dexieAdapter
     })
-    addAdminRelays(ndk)
 
     ndk.connect()
 
@@ -148,6 +110,33 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
     since,
     limit
   }: FetchModsOptions): Promise<ModDetails[]> => {
+    const relays = new Set<string>()
+    relays.add(import.meta.env.VITE_APP_RELAY)
+
+    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
+
+    const promises = adminNpubs.map((npub) => {
+      const hexKey = npubToHex(npub)
+      if (!hexKey) return null
+
+      return getRelayListForUser(hexKey, ndk)
+        .then((ndkRelayList) => {
+          if (ndkRelayList) {
+            ndkRelayList.writeRelayUrls.forEach((url) => relays.add(url))
+          }
+        })
+        .catch((err) => {
+          log(
+            true,
+            LogType.Error,
+            `❌ Error occurred in getting the instance of NDKRelayList for npub: ${npub}`,
+            err
+          )
+        })
+    })
+
+    await Promise.allSettled(promises)
+
     // Define the filter criteria for fetching mods
     const filter: NDKFilter = {
       kinds: [NDKKind.Classified], // Specify the kind of events to fetch
@@ -163,10 +152,11 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
     }
 
     return ndk
-      .fetchEvents(filter, {
-        closeOnEose: true,
-        cacheUsage: NDKSubscriptionCacheUsage.PARALLEL
-      })
+      .fetchEvents(
+        filter,
+        { closeOnEose: true, cacheUsage: NDKSubscriptionCacheUsage.PARALLEL },
+        NDKRelaySet.fromRelayUrls(Array.from(relays), ndk, true)
+      )
       .then((ndkEventSet) => {
         const ndkEvents = Array.from(ndkEventSet)
         orderEventsChronologically(ndkEvents)
@@ -189,17 +179,56 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
   }
 
   /**
-   * Asynchronously retrieves multiple event based on a provided filter.
+   * Asynchronously retrieves multiple event from a set of relays based on a provided filter.
+   * If no relays are specified, it defaults to using connected relays.
    *
    * @param filter - The filter criteria to find the event.
+   * @param relays - An optional array of relay URLs to search for the event.
    * @returns  Returns a promise that resolves to the found event or null if not found.
    */
-  const fetchEvents = async (filter: NDKFilter): Promise<NDKEvent[]> => {
-    return ndk
-      .fetchEvents(filter, {
-        closeOnEose: true,
-        cacheUsage: NDKSubscriptionCacheUsage.PARALLEL
+  const fetchEvents = async (
+    filter: NDKFilter,
+    relayUrls: string[] = []
+  ): Promise<NDKEvent[]> => {
+    const relays = new Set<string>()
+
+    // add all the relays passed to relay set
+    relayUrls.forEach((relayUrl) => {
+      relays.add(relayUrl)
     })
+
+    relays.add(import.meta.env.VITE_APP_RELAY)
+
+    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
+
+    const promises = adminNpubs.map((npub) => {
+      const hexKey = npubToHex(npub)
+      if (!hexKey) return null
+
+      return getRelayListForUser(hexKey, ndk)
+        .then((ndkRelayList) => {
+          if (ndkRelayList) {
+            ndkRelayList.writeRelayUrls.forEach((url) => relays.add(url))
+          }
+        })
+        .catch((err) => {
+          log(
+            true,
+            LogType.Error,
+            `❌ Error occurred in getting the instance of NDKRelayList for npub: ${npub}`,
+            err
+          )
+        })
+    })
+
+    await Promise.allSettled(promises)
+
+    return ndk
+      .fetchEvents(
+        filter,
+        { closeOnEose: true, cacheUsage: NDKSubscriptionCacheUsage.PARALLEL },
+        NDKRelaySet.fromRelayUrls(Array.from(relays), ndk, true)
+      )
       .then((ndkEventSet) => {
         const ndkEvents = Array.from(ndkEventSet)
         return orderEventsChronologically(ndkEvents)
@@ -213,13 +242,15 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
   }
 
   /**
-   * Asynchronously retrieves an event based on a provided filter.
+   * Asynchronously retrieves an event from a set of relays based on a provided filter.
+   * If no relays are specified, it defaults to using connected relays.
    *
    * @param filter - The filter criteria to find the event.
+   * @param  relaysUrls - An optional array of relay URLs to search for the event.
    * @returns  Returns a promise that resolves to the found event or null if not found.
    */
-  const fetchEvent = async (filter: NDKFilter) => {
-    const events = await fetchEvents(filter)
+  const fetchEvent = async (filter: NDKFilter, relayUrls: string[] = []) => {
+    const events = await fetchEvents(filter, relayUrls)
     if (events.length === 0) return null
     return events[0]
   }
@@ -234,10 +265,10 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
    * @returns  A promise that resolves with an array of events.
    */
   const fetchEventsFromUserRelays = async (
-    filter: NDKFilter | NDKFilter[],
+    filter: NDKFilter,
     hexKey: string,
     userRelaysType: UserRelaysType
-  ): Promise<NDKEvent[]> => {
+  ) => {
     // Find the user's relays.
     const relayUrls = await getRelayListForUser(hexKey, ndk)
       .then((ndkRelayList) => {
@@ -254,22 +285,8 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
         return [] as string[]
       })
 
-    return ndk
-      .fetchEvents(
-        filter,
-        { closeOnEose: true, cacheUsage: NDKSubscriptionCacheUsage.PARALLEL },
-        NDKRelaySet.fromRelayUrls(relayUrls, ndk, true)
-      )
-      .then((ndkEventSet) => {
-        const ndkEvents = Array.from(ndkEventSet)
-        return orderEventsChronologically(ndkEvents)
-      })
-      .catch((err) => {
-        // Log the error and show a notification if fetching fails
-        log(true, LogType.Error, 'An error occurred in fetching events', err)
-        toast.error('An error occurred in fetching events') // Show error notification
-        return [] // Return an empty array in case of an error
-      })
+    // Fetch the event from the user's relays using the provided filter and relay URLs
+    return fetchEvents(filter, relayUrls)
   }
 
   /**
@@ -282,7 +299,7 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
    * @returns  A promise that resolves to the fetched event or null if the operation fails.
    */
   const fetchEventFromUserRelays = async (
-    filter: NDKFilter | NDKFilter[],
+    filter: NDKFilter,
     hexKey: string,
     userRelaysType: UserRelaysType
   ) => {
@@ -312,178 +329,6 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
     return userProfile
   }
 
-  const getTotalZapAmount = async (
-    user: string,
-    eTag: string,
-    aTag?: string,
-    currentLoggedInUser?: string
-  ) => {
-    const filters: NDKFilter[] = [
-      {
-        kinds: [NDKKind.Zap],
-        '#e': [eTag],
-        '#p': [user]
-      }
-    ]
-
-    if (aTag) {
-      filters.push({
-        kinds: [NDKKind.Zap],
-        '#a': [aTag],
-        '#p': [user]
-      })
-    }
-
-    const zapEvents = await fetchEventsFromUserRelays(
-      filters,
-      user,
-      UserRelaysType.Read
-    )
-
-    let accumulatedZapAmount = 0
-    let hasZapped = false
-
-    zapEvents.forEach((zap) => {
-      const zapInvoice = zapInvoiceFromEvent(zap)
-      if (zapInvoice) {
-        accumulatedZapAmount += Math.round(zapInvoice.amount / 1000)
-
-        if (!hasZapped) hasZapped = zapInvoice.zappee === currentLoggedInUser
-      }
-    })
-
-    return {
-      accumulatedZapAmount,
-      hasZapped
-    }
-  }
-
-  const publish = async (event: NDKEvent): Promise<string[]> => {
-    if (!event.sig) throw new Error('Before publishing first sign the event!')
-
-    return event
-      .publish(undefined, 30000)
-      .then((res) => {
-        const relaysPublishedOn = Array.from(res)
-        return relaysPublishedOn.map((relay) => relay.url)
-      })
-      .catch((err) => {
-        console.error(`An error occurred in publishing event`, err)
-        return []
-      })
-  }
-
-  /**
-   * Retrieves a list of NSFW (Not Safe For Work) posts that were not specified as NSFW by post author but marked as NSFW by admin.
-   *
-   * @returns {Promise<string[]>} - A promise that resolves to an array of NSFW post identifiers (e.g., URLs or IDs).
-   */
-  const getNSFWList = async (): Promise<string[]> => {
-    // Initialize an array to store the NSFW post identifiers
-    const nsfwPosts: string[] = []
-
-    const reportingNpub = import.meta.env.VITE_REPORTING_NPUB
-
-    // Convert the  public key (npub) to a hexadecimal format
-    const hexKey = npubToHex(reportingNpub)
-
-    // If the conversion is successful and we have a hexKey
-    if (hexKey) {
-      // Fetch the event that contains the NSFW list
-      const nsfwListEvent = await fetchEvent({
-        kinds: [NDKKind.ArticleCurationSet],
-        authors: [hexKey],
-        '#d': ['nsfw']
-      })
-
-      if (nsfwListEvent) {
-        // Convert the event data to an NDKList, which is a structured list format
-        const list = NDKList.from(nsfwListEvent)
-
-        // Iterate through the items in the list
-        list.items.forEach((item) => {
-          if (item[0] === 'a') {
-            // Add the identifier of the NSFW post to the nsfwPosts array
-            nsfwPosts.push(item[1])
-          }
-        })
-      }
-    }
-
-    // Return the array of NSFW post identifiers
-    return nsfwPosts
-  }
-
-  const getMuteLists = async (
-    pubkey?: string
-  ): Promise<{
-    admin: MuteLists
-    user: MuteLists
-  }> => {
-    const adminMutedAuthors = new Set<string>()
-    const adminMutedPosts = new Set<string>()
-
-    const reportingNpub = import.meta.env.VITE_REPORTING_NPUB
-
-    const adminHexKey = npubToHex(reportingNpub)
-
-    if (adminHexKey) {
-      const muteListEvent = await fetchEvent({
-        kinds: [NDKKind.MuteList],
-        authors: [adminHexKey]
-      })
-
-      if (muteListEvent) {
-        const list = NDKList.from(muteListEvent)
-
-        list.items.forEach((item) => {
-          if (item[0] === 'p') {
-            adminMutedAuthors.add(item[1])
-          } else if (item[0] === 'a') {
-            adminMutedPosts.add(item[1])
-          }
-        })
-      }
-    }
-
-    const userMutedAuthors = new Set<string>()
-    const userMutedPosts = new Set<string>()
-
-    if (pubkey) {
-      const userHexKey = npubToHex(pubkey)
-
-      if (userHexKey) {
-        const muteListEvent = await fetchEvent({
-          kinds: [NDKKind.MuteList],
-          authors: [userHexKey]
-        })
-
-        if (muteListEvent) {
-          const list = NDKList.from(muteListEvent)
-
-          list.items.forEach((item) => {
-            if (item[0] === 'p') {
-              userMutedAuthors.add(item[1])
-            } else if (item[0] === 'a') {
-              userMutedPosts.add(item[1])
-            }
-          })
-        }
-      }
-    }
-
-    return {
-      admin: {
-        authors: Array.from(adminMutedAuthors),
-        replaceableEvents: Array.from(adminMutedPosts)
-      },
-      user: {
-        authors: Array.from(userMutedAuthors),
-        replaceableEvents: Array.from(userMutedPosts)
-      }
-    }
-  }
-
   return (
     <NDKContext.Provider
       value={{
@@ -493,11 +338,7 @@ export const NDKContextProvider = ({ children }: { children: ReactNode }) => {
         fetchEvent,
         fetchEventsFromUserRelays,
         fetchEventFromUserRelays,
-        findMetadata,
-        getTotalZapAmount,
-        publish,
-        getNSFWList,
-        getMuteLists
+        findMetadata
       }}
     >
       {children}

src/controllers/index.ts

@@ -1 +1,3 @@
+export * from './metadata'
+export * from './relay'
 export * from './zap'

src/controllers/metadata.ts

@@ -0,0 +1,217 @@
+import NDK, { getRelayListForUser, NDKList } from '@nostr-dev-kit/ndk'
+import { kinds } from 'nostr-tools'
+import { MuteLists } from '../types'
+import { log, LogType, npubToHex, timeout } from '../utils'
+
+export enum UserRelaysType {
+  Read = 'readRelayUrls',
+  Write = 'writeRelayUrls',
+  Both = 'bothRelayUrls'
+}
+
+/**
+ * Singleton class to manage metadata operations using NDK.
+ */
+export class MetadataController {
+  private static instance: MetadataController
+  private ndk: NDK
+  public adminNpubs: string[]
+  public adminRelays = new Set<string>()
+  public reportingNpub: string
+
+  private constructor() {
+    this.ndk = new NDK({
+      explicitRelayUrls: [
+        'wss://user.kindpag.es',
+        'wss://purplepag.es',
+        'wss://relay.damus.io/',
+        import.meta.env.VITE_APP_RELAY
+      ]
+    })
+
+    this.ndk
+      .connect()
+      .then(() => {
+        console.log('NDK connected')
+      })
+      .catch((err) => {
+        console.log('error in ndk connection', err)
+      })
+
+    this.adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
+    this.reportingNpub = import.meta.env.VITE_REPORTING_NPUB
+  }
+
+  private setAdminRelays = async () => {
+    const promises = this.adminNpubs.map((npub) => {
+      const hexKey = npubToHex(npub)
+      if (!hexKey) return null
+
+      return getRelayListForUser(hexKey, this.ndk)
+        .then((ndkRelayList) => {
+          if (ndkRelayList) {
+            ndkRelayList.writeRelayUrls.forEach((url) =>
+              this.adminRelays.add(url)
+            )
+          }
+        })
+        .catch((err) => {
+          log(
+            true,
+            LogType.Error,
+            `❌ Error occurred in getting the instance of NDKRelayList for npub: ${npub}`,
+            err
+          )
+        })
+    })
+
+    await Promise.allSettled(promises)
+  }
+
+  /**
+   * Provides the singleton instance of MetadataController.
+   *
+   * @returns The singleton instance of MetadataController.
+   */
+  public static async getInstance(): Promise<MetadataController> {
+    if (!MetadataController.instance) {
+      MetadataController.instance = new MetadataController()
+
+      await MetadataController.instance.setAdminRelays()
+    }
+    return MetadataController.instance
+  }
+
+  public findUserRelays = async (
+    hexKey: string,
+    userRelaysType: UserRelaysType = UserRelaysType.Both
+  ): Promise<string[]> => {
+    log(true, LogType.Info, `ℹ Finding user's relays`, hexKey, userRelaysType)
+
+    const ndkRelayListPromise = getRelayListForUser(hexKey, this.ndk)
+
+    // Use Promise.race to either get the NDKRelayList instance or handle the timeout
+    return await Promise.race([
+      ndkRelayListPromise,
+      timeout() // Custom timeout function that rejects after a specified time
+    ])
+      .then((ndkRelayList) => {
+        if (ndkRelayList) return ndkRelayList[userRelaysType]
+        return [] // Return an empty array if ndkRelayList is undefined
+      })
+      .catch((err) => {
+        log(true, LogType.Error, err)
+        return [] // Return an empty array if an error occurs
+      })
+  }
+
+  public getNDKRelayList = async (hexKey: string) =>
+    getRelayListForUser(hexKey, this.ndk)
+
+  public getMuteLists = async (
+    pubkey?: string
+  ): Promise<{
+    admin: MuteLists
+    user: MuteLists
+  }> => {
+    const adminMutedAuthors = new Set<string>()
+    const adminMutedPosts = new Set<string>()
+
+    const adminHexKey = npubToHex(this.reportingNpub)
+
+    if (adminHexKey) {
+      const muteListEvent = await this.ndk.fetchEvent({
+        kinds: [kinds.Mutelist],
+        authors: [adminHexKey]
+      })
+
+      if (muteListEvent) {
+        const list = NDKList.from(muteListEvent)
+
+        list.items.forEach((item) => {
+          if (item[0] === 'p') {
+            adminMutedAuthors.add(item[1])
+          } else if (item[0] === 'a') {
+            adminMutedPosts.add(item[1])
+          }
+        })
+      }
+    }
+
+    const userMutedAuthors = new Set<string>()
+    const userMutedPosts = new Set<string>()
+
+    if (pubkey) {
+      const userHexKey = npubToHex(pubkey)
+
+      if (userHexKey) {
+        const muteListEvent = await this.ndk.fetchEvent({
+          kinds: [kinds.Mutelist],
+          authors: [userHexKey]
+        })
+
+        if (muteListEvent) {
+          const list = NDKList.from(muteListEvent)
+
+          list.items.forEach((item) => {
+            if (item[0] === 'p') {
+              userMutedAuthors.add(item[1])
+            } else if (item[0] === 'a') {
+              userMutedPosts.add(item[1])
+            }
+          })
+        }
+      }
+    }
+
+    return {
+      admin: {
+        authors: Array.from(adminMutedAuthors),
+        replaceableEvents: Array.from(adminMutedPosts)
+      },
+      user: {
+        authors: Array.from(userMutedAuthors),
+        replaceableEvents: Array.from(userMutedPosts)
+      }
+    }
+  }
+
+  /**
+   * Retrieves a list of NSFW (Not Safe For Work) posts that were not specified as NSFW by post author but marked as NSFW by admin.
+   *
+   * @returns {Promise<string[]>} - A promise that resolves to an array of NSFW post identifiers (e.g., URLs or IDs).
+   */
+  public getNSFWList = async (): Promise<string[]> => {
+    // Initialize an array to store the NSFW post identifiers
+    const nsfwPosts: string[] = []
+
+    // Convert the  public key (npub) to a hexadecimal format
+    const hexKey = npubToHex(this.reportingNpub)
+
+    // If the conversion is successful and we have a hexKey
+    if (hexKey) {
+      // Fetch the event that contains the NSFW list
+      const nsfwListEvent = await this.ndk.fetchEvent({
+        kinds: [kinds.Curationsets],
+        authors: [hexKey],
+        '#d': ['nsfw']
+      })
+
+      if (nsfwListEvent) {
+        // Convert the event data to an NDKList, which is a structured list format
+        const list = NDKList.from(nsfwListEvent)
+
+        // Iterate through the items in the list
+        list.items.forEach((item) => {
+          if (item[0] === 'a') {
+            // Add the identifier of the NSFW post to the nsfwPosts array
+            nsfwPosts.push(item[1])
+          }
+        })
+      }
+    }
+
+    // Return the array of NSFW post identifiers
+    return nsfwPosts
+  }
+}

src/controllers/relay.ts

@@ -0,0 +1,561 @@
+import { Event, Filter, kinds, nip57, Relay } from 'nostr-tools'
+import {
+  extractZapAmount,
+  log,
+  LogType,
+  normalizeWebSocketURL,
+  timeout
+} from '../utils'
+import { MetadataController, UserRelaysType } from './metadata'
+
+/**
+ * Singleton class to manage relay operations.
+ */
+export class RelayController {
+  private static instance: RelayController
+  private events = new Map<string, Event>()
+  private debug = true
+  public connectedRelays: Relay[] = []
+
+  private constructor() {}
+
+  /**
+   * Provides the singleton instance of RelayController.
+   *
+   * @returns The singleton instance of RelayController.
+   */
+  public static getInstance(): RelayController {
+    if (!RelayController.instance) {
+      RelayController.instance = new RelayController()
+    }
+    return RelayController.instance
+  }
+
+  public connectRelay = async (relayUrl: string) => {
+    const relay = this.connectedRelays.find(
+      (relay) =>
+        normalizeWebSocketURL(relay.url) === normalizeWebSocketURL(relayUrl)
+    )
+    if (relay) {
+      // already connected, skip
+      return relay
+    }
+
+    return await Relay.connect(relayUrl)
+      .then((relay) => {
+        log(this.debug, LogType.Info, `✅ nostr (${relayUrl}): Connected!`)
+        this.connectedRelays.push(relay)
+        return relay
+      })
+      .catch((err) => {
+        log(
+          this.debug,
+          LogType.Error,
+          `❌ nostr (${relayUrl}): Connection error!`,
+          err
+        )
+        return null
+      })
+  }
+
+  /**
+   * Publishes an event to multiple relays.
+   *
+   * This method establishes a connection to the application relay specified by
+   * an environment variable and a set of relays obtained from the
+   * `MetadataController`. It attempts to publish the event to all connected
+   * relays and returns a list of URLs of relays where the event was successfully
+   * published.
+   *
+   * If the process of finding relays or publishing the event takes too long,
+   * it handles the timeout to prevent blocking the operation.
+   *
+   * @param event - The event to be published.
+   * @param userHexKey - The user's hexadecimal public key, used to retrieve their relays.
+   *                     If not provided, the event's public key will be used.
+   * @param userRelaysType - The type of relays to be retrieved (e.g., write relays).
+   *                         Defaults to `UserRelaysType.Write`.
+   * @returns A promise that resolves to an array of URLs of relays where the event
+   *          was published, or an empty array if no relays were connected or the
+   *          event could not be published.
+   */
+  publish = async (
+    event: Event,
+    userHexKey?: string,
+    userRelaysType?: UserRelaysType
+  ): Promise<string[]> => {
+    // Connect to the application relay specified by an environment variable
+    const appRelayPromise = this.connectRelay(import.meta.env.VITE_APP_RELAY)
+
+    // TODO: Implement logic to retrieve relays using `window.nostr.getRelays()` once it becomes available in nostr-login.
+
+    // Retrieve an instance of MetadataController to find user relays
+    const metadataController = await MetadataController.getInstance()
+
+    // Retrieve the list of relays for the specified user's public key
+    const relayUrls = await metadataController.findUserRelays(
+      userHexKey || event.pubkey,
+      userRelaysType || UserRelaysType.Write
+    )
+
+    // Add admin relay URLs from the metadata controller to the list of relay URLs
+    metadataController.adminRelays.forEach((url) => {
+      relayUrls.push(url)
+    })
+
+    // Attempt to connect to all write relays obtained from MetadataController
+    const relayPromises = relayUrls.map((relayUrl) =>
+      this.connectRelay(relayUrl)
+    )
+
+    // Wait for all relay connection attempts to settle (either fulfilled or rejected)
+    const results = await Promise.allSettled([
+      appRelayPromise,
+      ...relayPromises
+    ])
+
+    // Extract non-null values from fulfilled promises in a single pass
+    const relays = results.reduce<Relay[]>((acc, result) => {
+      if (result.status === 'fulfilled') {
+        const value = result.value
+        if (value) {
+          acc.push(value)
+        }
+      }
+      return acc
+    }, [])
+
+    // If no relays are connected, log an error and return an empty array
+    if (relays.length === 0) {
+      log(this.debug, LogType.Error, 'No relay is connected!')
+      return []
+    }
+
+    const publishedOnRelays: string[] = [] // Track relays where the event was successfully published
+
+    // Create promises to publish the event to each connected relay
+    const publishPromises = relays.map((relay) => {
+      log(
+        this.debug,
+        LogType.Info,
+        `⬆️ nostr (${relay.url}): Sending event:`,
+        event
+      )
+
+      return Promise.race([
+        relay.publish(event), // Publish the event to the relay
+        timeout(30000) // Set a timeout to handle slow publishing operations
+      ])
+        .then((res) => {
+          log(
+            this.debug,
+            LogType.Info,
+            `⬆️ nostr (${relay.url}): Publish result:`,
+            res
+          )
+          publishedOnRelays.push(relay.url) // Add successful relay URL to the list
+        })
+        .catch((err) => {
+          log(
+            this.debug,
+            LogType.Error,
+            `❌ nostr (${relay.url}): Publish error!`,
+            err
+          )
+        })
+    })
+
+    // Wait for all publish operations to complete (either fulfilled or rejected)
+    await Promise.allSettled(publishPromises)
+
+    if (publishedOnRelays.length > 0) {
+      // If the event was successfully published to any relays, check if it contains an `aTag`
+      // If the `aTag` is present, cache the event locally
+      const aTag = event.tags.find((item) => item[0] === 'a')
+      if (aTag && aTag[1]) {
+        this.events.set(aTag[1], event)
+      }
+    }
+
+    // Return the list of relay URLs where the event was successfully published
+    return publishedOnRelays
+  }
+
+  /**
+   * Publishes an encrypted DM to receiver's read relays.
+   *
+   * This method connects to the application relay and a set of receiver's read relays
+   * obtained from the `MetadataController`. It then publishes the event to
+   * all connected relays and returns a list of relays where the event was successfully published.
+   *
+   * @param event - The event to be published.
+   * @returns A promise that resolves to an array of URLs of relays where the event was published,
+   *          or an empty array if no relays were connected or the event could not be published.
+   */
+  publishDM = async (event: Event, receiver: string): Promise<string[]> => {
+    // Connect to the application relay specified by environment variable
+    const appRelayPromise = this.connectRelay(import.meta.env.VITE_APP_RELAY)
+
+    // todo: window.nostr.getRelays() is not implemented yet in nostr-login, implement the logic once its done
+
+    const metadataController = await MetadataController.getInstance()
+
+    // Retrieve the list of read relays for the receiver
+    const readRelayUrls = await metadataController.findUserRelays(
+      receiver,
+      UserRelaysType.Read
+    )
+
+    // push admin relay urls obtained from metadata controller to readRelayUrls list
+    metadataController.adminRelays.forEach((url) => {
+      readRelayUrls.push(url)
+    })
+
+    // Connect to all write relays obtained from MetadataController
+    const relayPromises = readRelayUrls.map((relayUrl) =>
+      this.connectRelay(relayUrl)
+    )
+
+    // Wait for all relay connections to settle (either fulfilled or rejected)
+    await Promise.allSettled([appRelayPromise, ...relayPromises])
+
+    // Check if any relays are connected; if not, log an error and return null
+    if (this.connectedRelays.length === 0) {
+      log(this.debug, LogType.Error, 'No relay is connected!')
+      return []
+    }
+
+    const publishedOnRelays: string[] = [] // List to track which relays successfully published the event
+
+    // Create a promise for publishing the event to each connected relay
+    const publishPromises = this.connectedRelays.map((relay) => {
+      log(
+        this.debug,
+        LogType.Info,
+        `⬆️ nostr (${relay.url}): Sending event:`,
+        event
+      )
+
+      return Promise.race([
+        relay.publish(event), // Publish the event to the relay
+        timeout(30000) // Set a timeout to handle cases where publishing takes too long
+      ])
+        .then((res) => {
+          log(
+            this.debug,
+            LogType.Info,
+            `⬆️ nostr (${relay.url}): Publish result:`,
+            res
+          )
+          publishedOnRelays.push(relay.url) // Add the relay URL to the list of successfully published relays
+        })
+        .catch((err) => {
+          log(
+            this.debug,
+            LogType.Error,
+            `❌ nostr (${relay.url}): Publish error!`,
+            err
+          )
+        })
+    })
+
+    // Wait for all publish operations to complete (either fulfilled or rejected)
+    await Promise.allSettled(publishPromises)
+
+    // Return the list of relay URLs where the event was published
+    return publishedOnRelays
+  }
+
+  /**
+   * Publishes an event to multiple relays.
+   *
+   * This method establishes a connection to the application relay specified by
+   * an environment variable and a set of relays provided as argument.
+   * It attempts to publish the event to all connected relays
+   * and returns a list of URLs of relays where the event was successfully published.
+   *
+   * If the process of publishing the event takes too long,
+   * it handles the timeout to prevent blocking the operation.
+   *
+   * @param event - The event to be published.
+   * @param relayUrls - The array of relayUrl where event should be published
+   * @returns A promise that resolves to an array of URLs of relays where the event
+   *          was published, or an empty array if no relays were connected or the
+   *          event could not be published.
+   */
+  publishOnRelays = async (
+    event: Event,
+    relayUrls: string[]
+  ): Promise<string[]> => {
+    const appRelay = import.meta.env.VITE_APP_RELAY
+
+    if (!relayUrls.includes(appRelay)) {
+      /**
+       * NOTE: To avoid side-effects on external relayUrls array passed as argument
+       * re-assigned relayUrls with added sigit relay instead of just appending to same array
+       */
+      relayUrls = [...relayUrls, appRelay] // Add app relay to relays array if not exists already
+    }
+
+    // connect to all specified relays
+    const relayPromises = relayUrls.map((relayUrl) =>
+      this.connectRelay(relayUrl)
+    )
+
+    // Use Promise.allSettled to wait for all promises to settle
+    const results = await Promise.allSettled(relayPromises)
+
+    // Extract non-null values from fulfilled promises in a single pass
+    const relays = results.reduce<Relay[]>((acc, result) => {
+      if (result.status === 'fulfilled') {
+        const value = result.value
+        if (value) {
+          acc.push(value)
+        }
+      }
+      return acc
+    }, [])
+
+    // Check if any relays are connected
+    if (relays.length === 0) {
+      log(this.debug, LogType.Error, 'No relay is connected!')
+      return []
+    }
+
+    const publishedOnRelays: string[] = [] // Track relays where the event was successfully published
+
+    // Create promises to publish the event to each connected relay
+    const publishPromises = relays.map((relay) => {
+      log(
+        this.debug,
+        LogType.Info,
+        `⬆️ nostr (${relay.url}): Sending event:`,
+        event
+      )
+
+      return Promise.race([
+        relay.publish(event), // Publish the event to the relay
+        timeout(30000) // Set a timeout to handle slow publishing operations
+      ])
+        .then((res) => {
+          log(
+            this.debug,
+            LogType.Info,
+            `⬆️ nostr (${relay.url}): Publish result:`,
+            res
+          )
+          publishedOnRelays.push(relay.url) // Add successful relay URL to the list
+        })
+        .catch((err) => {
+          log(
+            this.debug,
+            LogType.Error,
+            `❌ nostr (${relay.url}): Publish error!`,
+            err
+          )
+        })
+    })
+
+    // Wait for all publish operations to complete (either fulfilled or rejected)
+    await Promise.allSettled(publishPromises)
+
+    if (publishedOnRelays.length > 0) {
+      // If the event was successfully published to any relays, check if it contains an `aTag`
+      // If the `aTag` is present, cache the event locally
+      const aTag = event.tags.find((item) => item[0] === 'a')
+      if (aTag && aTag[1]) {
+        this.events.set(aTag[1], event)
+      }
+    }
+
+    // Return the list of relay URLs where the event was successfully published
+    return publishedOnRelays
+  }
+
+  /**
+   * Subscribes to events from multiple relays.
+   *
+   * This method connects to the specified relay URLs and subscribes to events
+   * using the provided filter. It handles incoming events through the given
+   * `eventHandler` callback and manages the subscription lifecycle.
+   *
+   * @param filter - The filter criteria to apply when subscribing to events.
+   * @param relayUrls - An optional array of relay URLs to connect to. The default relay URL (`APP_RELAY`) is added automatically.
+   * @param eventHandler - A callback function to handle incoming events. It receives an `Event` object.
+   *
+   */
+  subscribeForEvents = async (
+    filter: Filter,
+    relayUrls: string[] = [],
+    eventHandler: (event: Event) => void
+  ) => {
+    const appRelay = import.meta.env.VITE_APP_RELAY
+    if (!relayUrls.includes(appRelay)) {
+      /**
+       * NOTE: To avoid side-effects on external relayUrls array passed as argument
+       * re-assigned relayUrls with added sigit relay instead of just appending to same array
+       */
+      relayUrls = [...relayUrls, appRelay] // Add app relay to relays array if not exists already
+    }
+
+    // connect to all specified relays
+    const relayPromises = relayUrls.map((relayUrl) =>
+      this.connectRelay(relayUrl)
+    )
+
+    // Use Promise.allSettled to wait for all promises to settle
+    const results = await Promise.allSettled(relayPromises)
+
+    // Extract non-null values from fulfilled promises in a single pass
+    const relays = results.reduce<Relay[]>((acc, result) => {
+      if (result.status === 'fulfilled') {
+        const value = result.value
+        if (value) {
+          acc.push(value)
+        }
+      }
+      return acc
+    }, [])
+
+    // Check if any relays are connected
+    if (relays.length === 0) {
+      throw new Error('No relay is connected to fetch events!')
+    }
+
+    const processedEvents: string[] = [] // To keep track of processed events
+
+    // Create a promise for each relay subscription
+    const subscriptions = relays.map((relay) =>
+      relay.subscribe([filter], {
+        // Handle incoming events
+        onevent: (e) => {
+          // Process event only if it hasn't been processed before
+          if (!processedEvents.includes(e.id)) {
+            processedEvents.push(e.id)
+            eventHandler(e) // Call the event handler with the event
+          }
+        }
+      })
+    )
+
+    return subscriptions
+  }
+
+  getTotalZapAmount = async (
+    user: string,
+    eTag: string,
+    aTag?: string,
+    currentLoggedInUser?: string
+  ) => {
+    const metadataController = await MetadataController.getInstance()
+
+    const relayUrls = await metadataController.findUserRelays(
+      user,
+      UserRelaysType.Read
+    )
+
+    const appRelay = import.meta.env.VITE_APP_RELAY
+    if (!relayUrls.includes(appRelay)) {
+      relayUrls.push(appRelay)
+    }
+
+    // Connect to all specified relays
+    const relayPromises = relayUrls.map((relayUrl) =>
+      this.connectRelay(relayUrl)
+    )
+
+    // Use Promise.allSettled to wait for all promises to settle
+    const results = await Promise.allSettled(relayPromises)
+
+    // Extract non-null values from fulfilled promises in a single pass
+    const relays = results.reduce<Relay[]>((acc, result) => {
+      if (result.status === 'fulfilled') {
+        const value = result.value
+        if (value) {
+          acc.push(value)
+        }
+      }
+      return acc
+    }, [])
+
+    let accumulatedZapAmount = 0
+    let hasZapped = false
+
+    const eventIds = new Set<string>() // To keep track of event IDs and avoid duplicates
+
+    const filters: Filter[] = [
+      {
+        kinds: [kinds.Zap],
+        '#e': [eTag]
+      }
+    ]
+
+    if (aTag) {
+      filters.push({
+        kinds: [kinds.Zap],
+        '#a': [aTag]
+      })
+    }
+
+    // Create a promise for each relay subscription
+    const subPromises = relays.map((relay) => {
+      return new Promise<void>((resolve) => {
+        // Subscribe to the relay with the specified filter
+        const sub = relay.subscribe(filters, {
+          // Handle incoming events
+          onevent: (e) => {
+            // Add the event to the array if it's not a duplicate
+            if (!eventIds.has(e.id)) {
+              eventIds.add(e.id) // Record the event ID
+
+              const zapRequestStr = e.tags.find(
+                (t) => t[0] === 'description'
+              )?.[1]
+              if (!zapRequestStr) return
+
+              const error = nip57.validateZapRequest(zapRequestStr)
+              if (error) return
+
+              let zapRequest: Event | null = null
+
+              try {
+                zapRequest = JSON.parse(zapRequestStr)
+              } catch (error) {
+                log(
+                  true,
+                  LogType.Error,
+                  'Error occurred in parsing zap request',
+                  error
+                )
+              }
+
+              if (!zapRequest) return
+
+              const amount = extractZapAmount(zapRequest)
+              accumulatedZapAmount += amount
+
+              if (amount > 0) {
+                if (!hasZapped) {
+                  hasZapped = zapRequest.pubkey === currentLoggedInUser
+                }
+              }
+            }
+          },
+          // Handle the End-Of-Stream (EOSE) message
+          oneose: () => {
+            sub.close() // Close the subscription
+            resolve() // Resolve the promise when EOSE is received
+          }
+        })
+      })
+    })
+
+    // Wait for all subscriptions to complete
+    await Promise.allSettled(subPromises)
+
+    return {
+      accumulatedZapAmount,
+      hasZapped
+    }
+  }
+}

src/controllers/zap.ts

@@ -17,6 +17,7 @@ import {
   ZapRequest
 } from '../types'
 import { log, LogType, npubToHex } from '../utils'
+import { MetadataController, UserRelaysType } from './metadata'
 
 /**
  * Singleton class to manage zap related operations.
@@ -47,7 +48,6 @@ export class ZapController {
    * @param lud16 - LUD-16 of the recipient.
    * @param amount - payment amount (will be multiplied by 1000 to represent sats).
    * @param recipientPubKey - pubKey of the recipient.
-   * @param recipientRelays - relays on which zap receipt will be published.
    * @param senderPubkey - pubKey of of the sender.
    * @param content - optional content (comment).
    * @param eventId - event id, if zapping an event.
@@ -59,7 +59,6 @@ export class ZapController {
     lud16: string,
     amount: number,
     recipientPubKey: string,
-    recipientRelays: string[],
     senderPubkey: string,
     content?: string,
     eventId?: string,
@@ -89,7 +88,6 @@ export class ZapController {
       amount,
       content,
       recipientPubKey,
-      recipientRelays,
       senderPubkey,
       eventId,
       aTag
@@ -275,7 +273,6 @@ export class ZapController {
    * @param amount - request amount (sats).
    * @param content - comment.
    * @param recipientPubKey - pubKey of the recipient.
-   * @param recipientRelays - relays on which zap receipt will be published.
    * @param senderPubkey - pubKey of of the sender.
    * @param eventId - event id, if zapping an event.
    * @param aTag - value of `a` tag.
@@ -285,7 +282,6 @@ export class ZapController {
     amount: number,
     content = '',
     recipientPubKey: string,
-    recipientRelays: string[],
     senderPubkey: string,
     eventId?: string,
     aTag?: string
@@ -294,15 +290,21 @@ export class ZapController {
 
     if (!recipientHexKey) throw 'Invalid recipient pubKey.'
 
-    if (!recipientRelays.includes(this.appRelay)) {
-      recipientRelays.push(this.appRelay)
+    const metadataController = await MetadataController.getInstance()
+    const receiverReadRelays = await metadataController.findUserRelays(
+      recipientHexKey,
+      UserRelaysType.Read
+    )
+
+    if (!receiverReadRelays.includes(this.appRelay)) {
+      receiverReadRelays.push(this.appRelay)
     }
 
     const zapRequest: ZapRequest = {
       kind: kinds.ZapRequest,
       content,
       tags: [
-        ['relays', ...recipientRelays],
+        ['relays', ...receiverReadRelays],
         ['amount', `${amount}`],
         ['p', recipientHexKey]
       ],

src/hooks/index.ts

@@ -6,4 +6,3 @@ export * from './useMuteLists'
 export * from './useNSFWList'
 export * from './useReactions'
 export * from './useNDKContext'
-export * from './useScrollDisable'

src/hooks/useComments.ts

@@ -6,8 +6,9 @@ import {
   NDKSubscription,
   NDKSubscriptionCacheUsage
 } from '@nostr-dev-kit/ndk'
+import { UserRelaysType } from 'controllers'
 import { useEffect, useState } from 'react'
-import { CommentEvent, ModDetails, UserRelaysType } from 'types'
+import { CommentEvent, ModDetails } from 'types'
 import { log, LogType } from 'utils'
 import { useNDKContext } from './useNDKContext'
 

src/hooks/useMuteLists.ts

@@ -1,10 +1,9 @@
 import { useEffect, useState } from 'react'
 import { MuteLists } from 'types'
 import { useAppSelector } from './redux'
-import { useNDKContext } from './useNDKContext'
+import { MetadataController } from 'controllers'
 
 export const useMuteLists = () => {
-  const { getMuteLists } = useNDKContext()
   const [muteLists, setMuteLists] = useState<{
     admin: MuteLists
     user: MuteLists
@@ -22,11 +21,17 @@ export const useMuteLists = () => {
   const userState = useAppSelector((state) => state.user)
 
   useEffect(() => {
+    const getMuteLists = async () => {
       const pubkey = userState.user?.pubkey as string | undefined
-    getMuteLists(pubkey).then((lists) => {
+
+      const metadataController = await MetadataController.getInstance()
+      metadataController.getMuteLists(pubkey).then((lists) => {
         setMuteLists(lists)
       })
-  }, [userState, getMuteLists])
+    }
+
+    getMuteLists()
+  }, [userState])
 
   return muteLists
 }

src/hooks/useNDKContext.ts

@@ -9,5 +9,23 @@ export const useNDKContext = () => {
       'NDKContext should not be used in out component tree hierarchy'
     )
 
-  return { ...ndkContext }
+  const {
+    ndk,
+    fetchEvents,
+    fetchEvent,
+    fetchEventsFromUserRelays,
+    fetchEventFromUserRelays,
+    fetchMods,
+    findMetadata
+  } = ndkContext
+
+  return {
+    ndk,
+    fetchEvents,
+    fetchEvent,
+    fetchEventsFromUserRelays,
+    fetchEventFromUserRelays,
+    fetchMods,
+    findMetadata
+  }
 }

src/hooks/useNSFWList.ts

@@ -1,13 +1,14 @@
+import { MetadataController } from 'controllers'
 import { useState } from 'react'
 import { useDidMount } from './useDidMount'
-import { useNDKContext } from './useNDKContext'
 
 export const useNSFWList = () => {
-  const { getNSFWList } = useNDKContext()
   const [nsfwList, setNSFWList] = useState<string[]>([])
 
   useDidMount(async () => {
-    getNSFWList().then((list) => {
+    const metadataController = await MetadataController.getInstance()
+
+    metadataController.getNSFWList().then((list) => {
       setNSFWList(list)
     })
   })

src/hooks/useReactions.ts

@@ -1,10 +1,10 @@
 import { NDKEvent, NDKFilter } from '@nostr-dev-kit/ndk'
 import { REACTIONS } from 'constants.ts'
+import { RelayController, UserRelaysType } from 'controllers'
 import { useAppSelector, useDidMount, useNDKContext } from 'hooks'
 import { Event, kinds, UnsignedEvent } from 'nostr-tools'
 import { useMemo, useState } from 'react'
 import { toast } from 'react-toastify'
-import { UserRelaysType } from 'types'
 import { abbreviateNumber, log, LogType, now } from 'utils'
 
 type UseReactionsParams = {
@@ -14,7 +14,7 @@ type UseReactionsParams = {
 }
 
 export const useReactions = (params: UseReactionsParams) => {
-  const { ndk, fetchEventsFromUserRelays, publish } = useNDKContext()
+  const { ndk, fetchEventsFromUserRelays } = useNDKContext()
   const [isReactionInProgress, setIsReactionInProgress] = useState(false)
   const [isDataLoaded, setIsDataLoaded] = useState(false)
   const [reactionEvents, setReactionEvents] = useState<NDKEvent[]>([])
@@ -119,11 +119,13 @@ export const useReactions = (params: UseReactionsParams) => {
 
       if (!signedEvent) return
 
-      const ndkEvent = new NDKEvent(ndk, signedEvent)
+      setReactionEvents((prev) => [...prev, new NDKEvent(ndk, signedEvent)])
 
-      setReactionEvents((prev) => [...prev, ndkEvent])
-
-      const publishedOnRelays = await publish(ndkEvent)
+      const publishedOnRelays = await RelayController.getInstance().publish(
+        signedEvent as Event,
+        params.pubkey,
+        UserRelaysType.Read
+      )
 
       if (publishedOnRelays.length === 0) {
         log(

src/hooks/useScrollDisable.ts

@@ -1,11 +0,0 @@
-import { useEffect } from 'react'
-
-export const useBodyScrollDisable = (disable: boolean) => {
-  useEffect(() => {
-    if (disable) document.body.style.overflow = 'hidden'
-
-    return () => {
-      document.body.style.overflow = ''
-    }
-  }, [disable])
-}

src/layout/header.tsx

@@ -6,10 +6,10 @@ import React, { useEffect, useState } from 'react'
 import { Link } from 'react-router-dom'
 import { Banner } from '../components/Banner'
 import { ZapPopUp } from '../components/Zap'
+import { MetadataController } from '../controllers'
 import {
   useAppDispatch,
   useAppSelector,
-  useBodyScrollDisable,
   useDidMount,
   useNDKContext
 } from '../hooks'
@@ -27,18 +27,6 @@ export const Header = () => {
   const { findMetadata } = useNDKContext()
   const userState = useAppSelector((state) => state.user)
 
-  // Track nostr-login extension modal open state
-  const [isOpen, setIsOpen] = useState(false)
-  const handleOpen = () => setIsOpen(true)
-  const handleClose = () => setIsOpen(false)
-  useEffect(() => {
-    window.addEventListener('nlCloseModal', handleClose)
-    return () => {
-      window.removeEventListener('nlCloseModal', handleClose)
-    }
-  }, [])
-  useBodyScrollDisable(isOpen)
-
   useEffect(() => {
     initNostrLogin({
       darkMode: true,
@@ -78,7 +66,6 @@ export const Header = () => {
   }, [dispatch, findMetadata])
 
   const handleLogin = () => {
-    handleOpen()
     launchNostrLoginDialog()
   }
 
@@ -273,11 +260,9 @@ const TipButtonWithDialog = React.memo(() => {
   const [adminNpub, setAdminNpub] = useState<string | null>(null)
   const [isOpen, setIsOpen] = useState(false)
 
-  useBodyScrollDisable(isOpen)
-
   useDidMount(async () => {
-    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
-    setAdminNpub(adminNpubs[0])
+    const metadataController = await MetadataController.getInstance()
+    setAdminNpub(metadataController.adminNpubs[0])
   })
 
   return (
@@ -336,8 +321,6 @@ const TipButtonWithDialog = React.memo(() => {
 const RegisterButtonWithDialog = () => {
   const [showPopUp, setShowPopUp] = useState(false)
 
-  useBodyScrollDisable(showPopUp)
-
   return (
     <>
       <a

src/pages/game.tsx

@@ -14,7 +14,7 @@ import {
   useNDKContext,
   useNSFWList
 } from 'hooks'
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useState } from 'react'
 import { useParams } from 'react-router-dom'
 import {
   FilterOptions,
@@ -23,10 +23,9 @@ import {
   NSFWFilter,
   SortBy
 } from 'types'
-import { extractModData, isModDataComplete, scrollIntoView } from 'utils'
+import { extractModData, isModDataComplete } from 'utils'
 
 export const GamePage = () => {
-  const scrollTargetRef = useRef<HTMLDivElement>(null)
   const params = useParams()
   const { name: gameName } = params
   const { ndk } = useNDKContext()
@@ -62,7 +61,6 @@ export const GamePage = () => {
 
   const handlePageChange = (page: number) => {
     if (page >= 1 && page <= totalPages) {
-      scrollIntoView(scrollTargetRef.current)
       setCurrentPage(page)
     }
   }
@@ -104,10 +102,7 @@ export const GamePage = () => {
     <>
       <div className='InnerBodyMain'>
         <div className='ContainerMain'>
-          <div
-            className='IBMSecMainGroup IBMSecMainGroupAlt'
-            ref={scrollTargetRef}
-          >
+          <div className='IBMSecMainGroup IBMSecMainGroupAlt'>
             <div className='IBMSecMain'>
               <div className='SearchMainWrapper'>
                 <div className='IBMSMTitleMain'>

src/pages/games.tsx

@@ -8,10 +8,8 @@ import '../styles/search.css'
 import '../styles/styles.css'
 import { createSearchParams, useNavigate } from 'react-router-dom'
 import { appRoutes } from 'routes'
-import { scrollIntoView } from 'utils'
 
 export const GamesPage = () => {
-  const scrollTargetRef = useRef<HTMLDivElement>(null)
   const navigate = useNavigate()
   const { fetchMods } = useNDKContext()
   const searchTermRef = useRef<HTMLInputElement>(null)
@@ -65,7 +63,6 @@ export const GamesPage = () => {
 
   const handlePageChange = (page: number) => {
     if (page >= 1 && page <= totalPages) {
-      scrollIntoView(scrollTargetRef.current)
       setCurrentPage(page)
     }
   }
@@ -91,10 +88,7 @@ export const GamesPage = () => {
   return (
     <div className='InnerBodyMain'>
       <div className='ContainerMain'>
-        <div
-          className='IBMSecMainGroup IBMSecMainGroupAlt'
-          ref={scrollTargetRef}
-        >
+        <div className='IBMSecMainGroup IBMSecMainGroupAlt'>
           <div className='IBMSecMain'>
             <div className='SearchMainWrapper'>
               <div className='IBMSMTitleMain'>

src/pages/home.tsx

@@ -152,7 +152,7 @@ const SlideContent = ({ naddr }: SlideContentProps) => {
 
   useDidMount(() => {
     const decoded = nip19.decode<'naddr'>(naddr as `naddr1${string}`)
-    const { identifier, kind, pubkey } = decoded.data
+    const { identifier, kind, pubkey, relays = [] } = decoded.data
 
     const ndkFilter: NDKFilter = {
       '#a': [identifier],
@@ -160,7 +160,7 @@ const SlideContent = ({ naddr }: SlideContentProps) => {
       kinds: [kind]
     }
 
-    fetchEvent(ndkFilter)
+    fetchEvent(ndkFilter, relays)
       .then((ndkEvent) => {
         if (ndkEvent) {
           const extracted = extractModData(ndkEvent)
@@ -225,7 +225,7 @@ const DisplayMod = ({ naddr }: DisplayModProps) => {
 
   useDidMount(() => {
     const decoded = nip19.decode<'naddr'>(naddr as `naddr1${string}`)
-    const { identifier, kind, pubkey } = decoded.data
+    const { identifier, kind, pubkey, relays = [] } = decoded.data
 
     const ndkFilter: NDKFilter = {
       '#a': [identifier],
@@ -233,7 +233,7 @@ const DisplayMod = ({ naddr }: DisplayModProps) => {
       kinds: [kind]
     }
 
-    fetchEvent(ndkFilter)
+    fetchEvent(ndkFilter, relays)
       .then((ndkEvent) => {
         if (ndkEvent) {
           const extracted = extractModData(ndkEvent)

src/pages/mod/index.tsx

@@ -11,12 +11,8 @@ import { toast } from 'react-toastify'
 import { BlogCard } from '../../components/BlogCard'
 import { LoadingSpinner } from '../../components/LoadingSpinner'
 import { ProfileSection } from '../../components/ProfileSection'
-import {
-  useAppSelector,
-  useBodyScrollDisable,
-  useDidMount,
-  useNDKContext
-} from '../../hooks'
+import { MetadataController, UserRelaysType } from '../../controllers'
+import { useAppSelector, useDidMount, useNDKContext } from '../../hooks'
 import { getGamePageRoute, getModsEditPageRoute } from '../../routes'
 import '../../styles/comments.css'
 import '../../styles/downloads.css'
@@ -28,7 +24,7 @@ import '../../styles/styles.css'
 import '../../styles/tabs.css'
 import '../../styles/tags.css'
 import '../../styles/write.css'
-import { DownloadUrl, ModDetails, UserRelaysType } from '../../types'
+import { DownloadUrl, ModDetails } from '../../types'
 import {
   abbreviateNumber,
   copyTextToClipboard,
@@ -57,7 +53,7 @@ export const ModPage = () => {
   useDidMount(async () => {
     if (naddr) {
       const decoded = nip19.decode<'naddr'>(naddr as `naddr1${string}`)
-      const { identifier, kind, pubkey } = decoded.data
+      const { identifier, kind, pubkey, relays = [] } = decoded.data
 
       const filter: NDKFilter = {
         '#a': [identifier],
@@ -65,7 +61,7 @@ export const ModPage = () => {
         kinds: [kind]
       }
 
-      fetchEvent(filter)
+      fetchEvent(filter, relays)
         .then((event) => {
           if (event) {
             const extracted = extractModData(event)
@@ -216,7 +212,7 @@ type GameProps = {
 }
 
 const Game = ({ naddr, game, author, aTag }: GameProps) => {
-  const { ndk, fetchEventFromUserRelays, publish } = useNDKContext()
+  const { fetchEventFromUserRelays } = useNDKContext()
 
   const userState = useAppSelector((state) => state.user)
   const [isLoading, setIsLoading] = useState(false)
@@ -225,8 +221,6 @@ const Game = ({ naddr, game, author, aTag }: GameProps) => {
   const [isBlocked, setIsBlocked] = useState(false)
   const [isAddedToNSFW, setIsAddedToNSFW] = useState(false)
 
-  useBodyScrollDisable(showReportPopUp)
-
   useEffect(() => {
     if (userState.auth && userState.user?.pubkey) {
       const pubkey = userState.user.pubkey as string
@@ -349,7 +343,7 @@ const Game = ({ naddr, game, author, aTag }: GameProps) => {
 
     setLoadingSpinnerDesc('Updating mute list event')
 
-    const isUpdated = await signAndPublish(unsignedEvent, ndk, publish)
+    const isUpdated = await signAndPublish(unsignedEvent)
     if (isUpdated) {
       setIsBlocked(true)
     }
@@ -390,7 +384,7 @@ const Game = ({ naddr, game, author, aTag }: GameProps) => {
     }
 
     setLoadingSpinnerDesc('Updating mute list event')
-    const isUpdated = await signAndPublish(unsignedEvent, ndk, publish)
+    const isUpdated = await signAndPublish(unsignedEvent)
     if (isUpdated) {
       setIsBlocked(false)
     }
@@ -456,7 +450,7 @@ const Game = ({ naddr, game, author, aTag }: GameProps) => {
 
     setLoadingSpinnerDesc('Updating nsfw list event')
 
-    const isUpdated = await signAndPublish(unsignedEvent, ndk, publish)
+    const isUpdated = await signAndPublish(unsignedEvent)
     if (isUpdated) {
       setIsAddedToNSFW(true)
     }
@@ -497,7 +491,7 @@ const Game = ({ naddr, game, author, aTag }: GameProps) => {
     }
 
     setLoadingSpinnerDesc('Updating nsfw list event')
-    const isUpdated = await signAndPublish(unsignedEvent, ndk, publish)
+    const isUpdated = await signAndPublish(unsignedEvent)
     if (isUpdated) {
       setIsAddedToNSFW(false)
     }
@@ -667,7 +661,7 @@ type ReportPopupProps = {
 }
 
 const ReportPopup = ({ aTag, handleClose }: ReportPopupProps) => {
-  const { ndk, fetchEventFromUserRelays, publish } = useNDKContext()
+  const { fetchEventFromUserRelays } = useNDKContext()
   const userState = useAppSelector((state) => state.user)
   const [selectedOptions, setSelectedOptions] = useState({
     actuallyCP: false,
@@ -714,8 +708,8 @@ const ReportPopup = ({ aTag, handleClose }: ReportPopupProps) => {
       return
     }
 
-    const reportingNpub = import.meta.env.VITE_REPORTING_NPUB
-    const reportingPubkey = npubToHex(reportingNpub)
+    const metadataController = await MetadataController.getInstance()
+    const reportingPubkey = npubToHex(metadataController.reportingNpub)
 
     if (reportingPubkey === hexPubkey) {
       setLoadingSpinnerDesc(`Finding user's mute list`)
@@ -766,7 +760,7 @@ const ReportPopup = ({ aTag, handleClose }: ReportPopupProps) => {
       }
 
       setLoadingSpinnerDesc('Updating mute list event')
-      const isUpdated = await signAndPublish(unsignedEvent, ndk, publish)
+      const isUpdated = await signAndPublish(unsignedEvent)
       if (isUpdated) handleClose()
     } else {
       const href = window.location.href
@@ -779,12 +773,7 @@ const ReportPopup = ({ aTag, handleClose }: ReportPopupProps) => {
       })
 
       setLoadingSpinnerDesc('Sending report')
-      const isSent = await sendDMUsingRandomKey(
-        message,
-        reportingPubkey!,
-        ndk,
-        publish
-      )
+      const isSent = await sendDMUsingRandomKey(message, reportingPubkey!)
       if (isSent) handleClose()
     }
     setIsLoading(false)

src/pages/mod/internal/comment/index.tsx

@@ -1,13 +1,11 @@
-import { NDKEvent } from '@nostr-dev-kit/ndk'
 import { ZapPopUp } from 'components/Zap'
-import { formatDate } from 'date-fns'
 import {
-  useAppSelector,
-  useBodyScrollDisable,
-  useDidMount,
-  useNDKContext,
-  useReactions
-} from 'hooks'
+  MetadataController,
+  RelayController,
+  UserRelaysType
+} from 'controllers'
+import { formatDate } from 'date-fns'
+import { useAppSelector, useDidMount, useNDKContext, useReactions } from 'hooks'
 import { useComments } from 'hooks/useComments'
 import { Event, kinds, nip19, UnsignedEvent } from 'nostr-tools'
 import React, {
@@ -49,7 +47,6 @@ type Props = {
 }
 
 export const Comments = ({ modDetails, setCommentCount }: Props) => {
-  const { ndk, publish } = useNDKContext()
   const { commentEvents, setCommentEvents } = useComments(modDetails)
   const [filterOptions, setFilterOptions] = useState<FilterOptions>({
     sort: SortByEnum.Latest,
@@ -85,8 +82,7 @@ export const Comments = ({ modDetails, setCommentCount }: Props) => {
       created_at: now(),
       tags: [
         ['e', modDetails.id],
-        ['a', modDetails.aTag],
-        ['p', modDetails.author]
+        ['a', modDetails.aTag]
       ]
     }
 
@@ -109,9 +105,27 @@ export const Comments = ({ modDetails, setCommentCount }: Props) => {
       ...prev
     ])
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    publish(ndkEvent)
-      .then((publishedOnRelays) => {
+    const publish = async () => {
+      const metadataController = await MetadataController.getInstance()
+      const modAuthorReadRelays = await metadataController.findUserRelays(
+        modDetails.author,
+        UserRelaysType.Read
+      )
+      const commentatorWriteRelays = await metadataController.findUserRelays(
+        pubkey,
+        UserRelaysType.Write
+      )
+
+      const combinedRelays = [
+        ...new Set(...modAuthorReadRelays, ...commentatorWriteRelays)
+      ]
+
+      const publishedOnRelays =
+        await RelayController.getInstance().publishOnRelays(
+          signedEvent,
+          combinedRelays
+        )
+
       if (publishedOnRelays.length === 0) {
         setCommentEvents((prev) =>
           prev.map((event) => {
@@ -152,22 +166,9 @@ export const Comments = ({ modDetails, setCommentCount }: Props) => {
           })
         )
       }, 15000)
-      })
-      .catch((err) => {
-        console.error('An error occurred in publishing comment', err)
-        setCommentEvents((prev) =>
-          prev.map((event) => {
-            if (event.id === signedEvent.id) {
-              return {
-                ...event,
-                status: CommentEventStatus.Failed
-              }
     }
 
-            return event
-          })
-        )
-      })
+    publish()
 
     return true
   }
@@ -495,16 +496,15 @@ const Reactions = (props: Event) => {
 
 const Zap = (props: Event) => {
   const [isOpen, setIsOpen] = useState(false)
-  const [totalZappedAmount, setTotalZappedAmount] = useState(0)
   const [hasZapped, setHasZapped] = useState(false)
 
   const userState = useAppSelector((state) => state.user)
-  const { getTotalZapAmount } = useNDKContext()
 
-  useBodyScrollDisable(isOpen)
+  const [totalZappedAmount, setTotalZappedAmount] = useState(0)
 
   useDidMount(() => {
-    getTotalZapAmount(
+    RelayController.getInstance()
+      .getTotalZapAmount(
         props.pubkey,
         props.id,
         undefined,

src/pages/mod/internal/zap/index.tsx

@@ -1,10 +1,6 @@
 import { ZapSplit } from 'components/Zap'
-import {
-  useAppSelector,
-  useBodyScrollDisable,
-  useDidMount,
-  useNDKContext
-} from 'hooks'
+import { RelayController } from 'controllers'
+import { useAppSelector, useDidMount } from 'hooks'
 import { useState } from 'react'
 import { toast } from 'react-toastify'
 import { ModDetails } from 'types'
@@ -16,16 +12,15 @@ type ZapProps = {
 
 export const Zap = ({ modDetails }: ZapProps) => {
   const [isOpen, setIsOpen] = useState(false)
-  const [totalZappedAmount, setTotalZappedAmount] = useState(0)
   const [hasZapped, setHasZapped] = useState(false)
 
   const userState = useAppSelector((state) => state.user)
-  const { getTotalZapAmount } = useNDKContext()
 
-  useBodyScrollDisable(isOpen)
+  const [totalZappedAmount, setTotalZappedAmount] = useState(0)
 
   useDidMount(() => {
-    getTotalZapAmount(
+    RelayController.getInstance()
+      .getTotalZapAmount(
         modDetails.author,
         modDetails.id,
         modDetails.aTag,

src/pages/mods.tsx

@@ -24,10 +24,8 @@ import {
   NSFWFilter,
   SortBy
 } from '../types'
-import { scrollIntoView } from 'utils'
 
 export const ModsPage = () => {
-  const scrollTargetRef = useRef<HTMLDivElement>(null)
   const { fetchMods } = useNDKContext()
   const [isFetching, setIsFetching] = useState(false)
   const [mods, setMods] = useState<ModDetails[]>([])
@@ -68,7 +66,6 @@ export const ModsPage = () => {
       .then((res) => {
         setMods(res)
         setPage((prev) => prev + 1)
-        scrollIntoView(scrollTargetRef.current)
       })
       .finally(() => {
         setIsFetching(false)
@@ -87,7 +84,6 @@ export const ModsPage = () => {
       .then((res) => {
         setMods(res)
         setPage((prev) => prev - 1)
-        scrollIntoView(scrollTargetRef.current)
       })
       .finally(() => {
         setIsFetching(false)
@@ -107,10 +103,7 @@ export const ModsPage = () => {
       {isFetching && <LoadingSpinner desc='Fetching mod details from relays' />}
       <div className='InnerBodyMain'>
         <div className='ContainerMain'>
-          <div
-            className='IBMSecMainGroup IBMSecMainGroupAlt'
-            ref={scrollTargetRef}
-          >
+          <div className='IBMSecMainGroup IBMSecMainGroupAlt'>
             <PageTitleRow />
             <ModFilter
               filterOptions={filterOptions}

src/pages/search.tsx

@@ -43,13 +43,7 @@ import {
   NSFWFilter,
   SortBy
 } from 'types'
-import {
-  extractModData,
-  isModDataComplete,
-  log,
-  LogType,
-  scrollIntoView
-} from 'utils'
+import { extractModData, isModDataComplete, log, LogType } from 'utils'
 
 enum SearchKindEnum {
   Mods = 'Mods',
@@ -58,7 +52,6 @@ enum SearchKindEnum {
 }
 
 export const SearchPage = () => {
-  const scrollTargetRef = useRef<HTMLDivElement>(null)
   const [searchParams] = useSearchParams()
 
   const muteLists = useMuteLists()
@@ -95,10 +88,7 @@ export const SearchPage = () => {
   return (
     <div className='InnerBodyMain'>
       <div className='ContainerMain'>
-        <div
-          className='IBMSecMainGroup IBMSecMainGroupAlt'
-          ref={scrollTargetRef}
-        >
+        <div className='IBMSecMainGroup IBMSecMainGroupAlt'>
           <div className='IBMSecMain'>
             <div className='SearchMainWrapper'>
               <div className='IBMSMTitleMain'>
@@ -151,7 +141,6 @@ export const SearchPage = () => {
               filterOptions={filterOptions}
               muteLists={muteLists}
               nsfwList={nsfwList}
-              el={scrollTargetRef.current}
             />
           )}
           {searchKind === SearchKindEnum.Users && (
@@ -274,15 +263,13 @@ type ModsResultProps = {
     user: MuteLists
   }
   nsfwList: string[]
-  el: HTMLElement | null
 }
 
 const ModsResult = ({
   filterOptions,
   searchTerm,
   muteLists,
-  nsfwList,
-  el
+  nsfwList
 }: ModsResultProps) => {
   const { ndk } = useNDKContext()
   const [mods, setMods] = useState<ModDetails[]>([])
@@ -318,9 +305,7 @@ const ModsResult = ({
   }, [ndk])
 
   useEffect(() => {
-    scrollIntoView(el)
     setPage(1)
-    // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [searchTerm])
 
   const filteredMods = useMemo(() => {
@@ -349,12 +334,10 @@ const ModsResult = ({
   )
 
   const handleNext = () => {
-    scrollIntoView(el)
     setPage((prev) => prev + 1)
   }
 
   const handlePrev = () => {
-    scrollIntoView(el)
     setPage((prev) => prev - 1)
   }
 
@@ -409,7 +392,7 @@ const UsersResult = ({
       }
 
       setIsFetching(true)
-      fetchEvents(filter)
+      fetchEvents(filter, ['wss://purplepag.es', 'wss://user.kindpag.es'])
         .then((events) => {
           const results = events.map((event) => {
             const ndkEvent = new NDKEvent(undefined, event)

src/pages/settings/index.tsx

@@ -1,4 +1,5 @@
 import { AdminSVG, PreferenceSVG, ProfileSVG, RelaySVG } from 'components/SVGs'
+import { MetadataController } from 'controllers'
 import { useAppSelector } from 'hooks'
 import { logout } from 'nostr-login'
 import { useEffect, useState } from 'react'
@@ -56,12 +57,15 @@ const SettingTabs = () => {
   const userState = useAppSelector((state) => state.user)
 
   useEffect(() => {
-    const adminNpubs = import.meta.env.VITE_ADMIN_NPUBS.split(',')
+    MetadataController.getInstance().then((controller) => {
       if (userState.auth && userState.user?.npub) {
-      setIsAdmin(adminNpubs.includes(userState.user.npub as string))
+        setIsAdmin(
+          controller.adminNpubs.includes(userState.user.npub as string)
+        )
       } else {
         setIsAdmin(false)
       }
+    })
   }, [userState])
 
   const handleSignOut = () => {

src/pages/settings/profile.tsx

@@ -1,6 +1,6 @@
 import { InputField } from 'components/Inputs'
 import { ProfileQRButtonWithPopUp } from 'components/ProfileSection'
-import { useAppDispatch, useAppSelector, useNDKContext } from 'hooks'
+import { useAppDispatch, useAppSelector } from 'hooks'
 import { kinds, nip19, UnsignedEvent, Event } from 'nostr-tools'
 import { useEffect, useState } from 'react'
 import { Link } from 'react-router-dom'
@@ -14,6 +14,7 @@ import {
   profileFromEvent,
   serializeProfile
 } from '@nostr-dev-kit/ndk'
+import { RelayController } from 'controllers'
 import { LoadingSpinner } from 'components/LoadingSpinner'
 import { setUser } from 'store/reducers/user'
 import placeholderMod from '../../assets/img/DEGMods Placeholder Img.png'
@@ -42,7 +43,6 @@ const defaultFormState: FormState = {
 export const ProfileSettings = () => {
   const dispatch = useAppDispatch()
   const userState = useAppSelector((state) => state.user)
-  const { ndk, publish } = useNDKContext()
 
   const [isPublishing, setIsPublishing] = useState(false)
   const [formState, setFormState] = useState<FormState>(defaultFormState)
@@ -163,8 +163,9 @@ export const ProfileSettings = () => {
       return
     }
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays = await RelayController.getInstance().publish(
+      signedEvent as Event
+    )
 
     // Handle cases where publishing failed or succeeded
     if (publishedOnRelays.length === 0) {

src/pages/settings/relay.tsx

@@ -1,23 +1,21 @@
-import {
-  getRelayListForUser,
-  NDKEvent,
-  NDKRelayList,
-  NDKRelayStatus
-} from '@nostr-dev-kit/ndk'
+import { NDKRelayList } from '@nostr-dev-kit/ndk'
 import { InputField } from 'components/Inputs'
 import { LoadingSpinner } from 'components/LoadingSpinner'
-import { useAppSelector, useDidMount, useNDKContext } from 'hooks'
+import {
+  MetadataController,
+  RelayController,
+  UserRelaysType
+} from 'controllers'
+import { useAppSelector, useDidMount } from 'hooks'
 import { Event, kinds, UnsignedEvent } from 'nostr-tools'
 import { useEffect, useState } from 'react'
 import { toast } from 'react-toastify'
-import { UserRelaysType } from 'types'
 import { log, LogType, normalizeWebSocketURL, now } from 'utils'
 
 const READ_MARKER = 'read'
 const WRITE_MARKER = 'write'
 
 export const RelaySettings = () => {
-  const { ndk, publish } = useNDKContext()
   const userState = useAppSelector((state) => state.user)
   const [ndkRelayList, setNDKRelayList] = useState<NDKRelayList | null>(null)
   const [isPublishing, setIsPublishing] = useState(false)
@@ -25,8 +23,10 @@ export const RelaySettings = () => {
   const [inputValue, setInputValue] = useState('')
 
   useEffect(() => {
-    if (userState.auth && userState.user?.pubkey) {
-      getRelayListForUser(userState.user.pubkey as string, ndk)
+    const fetchRelayList = async (pubkey: string) => {
+      const metadataController = await MetadataController.getInstance()
+      metadataController
+        .getNDKRelayList(pubkey)
         .then((res) => {
           setNDKRelayList(res)
         })
@@ -38,10 +38,14 @@ export const RelaySettings = () => {
           )
           setNDKRelayList(null)
         })
+    }
+
+    if (userState.auth && userState.user?.pubkey) {
+      fetchRelayList(userState.user.pubkey as string)
     } else {
       setNDKRelayList(null)
     }
-  }, [userState, ndk])
+  }, [userState])
 
   const handleAdd = async (relayUrl: string) => {
     if (!ndkRelayList) return
@@ -74,8 +78,11 @@ export const RelaySettings = () => {
       return
     }
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays =
+      await RelayController.getInstance().publishOnRelays(
+        signedEvent,
+        ndkRelayList.writeRelayUrls
+      )
 
     // Handle cases where publishing failed or succeeded
     if (publishedOnRelays.length === 0) {
@@ -133,8 +140,11 @@ export const RelaySettings = () => {
       return
     }
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays =
+      await RelayController.getInstance().publishOnRelays(
+        signedEvent,
+        ndkRelayList.writeRelayUrls
+      )
 
     // Handle cases where publishing failed or succeeded
     if (publishedOnRelays.length === 0) {
@@ -204,8 +214,11 @@ export const RelaySettings = () => {
       return
     }
 
-    const ndkEvent = new NDKEvent(ndk, signedEvent)
-    const publishedOnRelays = await publish(ndkEvent)
+    const publishedOnRelays =
+      await RelayController.getInstance().publishOnRelays(
+        signedEvent,
+        ndkRelayList.writeRelayUrls
+      )
 
     // Handle cases where publishing failed or succeeded
     if (publishedOnRelays.length === 0) {
@@ -369,30 +382,18 @@ const RelayListItem = ({
   changeRelayType
 }: RelayItemProps) => {
   const [isConnected, setIsConnected] = useState(false)
-  const { ndk } = useNDKContext()
 
   useDidMount(() => {
-    const ndkPool = ndk.pool
-
-    ndkPool.on('relay:connect', (relay) => {
-      if (relay.url === relayUrl) {
-        setIsConnected(true)
-      }
-    })
-
-    ndkPool.on('relay:disconnect', (relay) => {
-      if (relay.url === relayUrl) {
-        setIsConnected(false)
-      }
-    })
-
-    const relay = ndkPool.relays.get(relayUrl)
-    if (relay && relay.status >= NDKRelayStatus.CONNECTED) {
+    RelayController.getInstance()
+      .connectRelay(relayUrl)
+      .then((relay) => {
+        if (relay && relay.connected) {
           setIsConnected(true)
         } else {
           setIsConnected(false)
         }
       })
+  })
 
   return (
     <div className='relayListItem'>

src/pages/submitMod.tsx

@@ -29,7 +29,7 @@ export const SubmitModPage = () => {
   useDidMount(async () => {
     if (naddr) {
       const decoded = nip19.decode<'naddr'>(naddr as `naddr1${string}`)
-      const { identifier, kind, pubkey } = decoded.data
+      const { identifier, kind, pubkey, relays = [] } = decoded.data
 
       const filter: NDKFilter = {
         '#a': [identifier],
@@ -39,7 +39,7 @@ export const SubmitModPage = () => {
 
       setIsFetching(true)
 
-      fetchEvent(filter)
+      fetchEvent(filter, relays)
         .then((event) => {
           if (event) {
             const extracted = extractModData(event)

src/styles/cardMod.css

@@ -96,7 +96,6 @@
   -webkit-box-orient: vertical;
   overflow: hidden;
   -webkit-line-clamp: 2;
-  line-clamp: 2;
   font-size: 20px;
   line-height: 1.25;
   color: rgba(255, 255, 255, 0.75);
@@ -108,7 +107,6 @@
   -webkit-box-orient: vertical;
   overflow: hidden;
   -webkit-line-clamp: 2;
-  line-clamp: 2;
   color: rgba(255, 255, 255, 0.5);
   font-size: 15px;
   line-height: 1.5;
@@ -121,12 +119,11 @@
   justify-content: start;
   align-items: center;
   font-size: 14px;
-  background: rgba(255, 255, 255, 0.05);
+  background: rgba(255,255,255,0.05);
   display: -webkit-box;
   -webkit-box-orient: vertical;
   overflow: hidden;
   -webkit-line-clamp: 1;
-  line-clamp: 1;
 }
 
 .cMMFootReactions {
@@ -146,12 +143,3 @@
   align-items: center;
   color: rgba(255, 255, 255, 0.25);
 }
-
-.IBMSMSMBSSTagsTag.IBMSMSMBSSTagsTagNSFW.IBMSMSMBSSTagsTagNSFWCard {
-  position: absolute;
-  bottom: 10px;
-  right: 10px;
-  -webkit-backdrop-filter: blur(10px);
-  backdrop-filter: blur(10px);
-  background: rgba(35, 35, 35, 0.85);
-}

src/types/user.ts

@@ -1,9 +1,3 @@
 import { NDKUserProfile } from '@nostr-dev-kit/ndk'
 
 export type UserProfile = NDKUserProfile | null
-
-export enum UserRelaysType {
-  Read = 'readRelayUrls',
-  Write = 'writeRelayUrls',
-  Both = 'bothRelayUrls'
-}

src/utils/nostr.ts

@@ -9,8 +9,9 @@ import {
   UnsignedEvent
 } from 'nostr-tools'
 import { toast } from 'react-toastify'
+import { RelayController } from '../controllers'
 import { log, LogType } from './utils'
-import NDK, { NDKEvent } from '@nostr-dev-kit/ndk'
+import { NDKEvent } from '@nostr-dev-kit/ndk'
 
 /**
  * Get the current time in seconds since the Unix epoch (January 1, 1970).
@@ -122,11 +123,7 @@ export const extractZapAmount = (event: Event): number => {
  * @param  unsignedEvent - The event object  which needs to be signed before publishing.
  * @returns - A promise that resolves to boolean indicating whether the event was successfully signed and published
  */
-export const signAndPublish = async (
-  unsignedEvent: UnsignedEvent,
-  ndk: NDK,
-  publish: (event: NDKEvent) => Promise<string[]>
-) => {
+export const signAndPublish = async (unsignedEvent: UnsignedEvent) => {
   // Sign the event. This returns a signed event or null if signing fails.
   const signedEvent = await window.nostr
     ?.signEvent(unsignedEvent)
@@ -141,10 +138,11 @@ export const signAndPublish = async (
   // If the event couldn't be signed, exit the function and return null.
   if (!signedEvent) return false
 
-  // Publish the signed event to the relays.
+  // Publish the signed event to the relays using the RelayController.
   // This returns an array of relay URLs where the event was successfully published.
-  const ndkEvent = new NDKEvent(ndk, signedEvent)
-  const publishedOnRelays = await publish(ndkEvent)
+  const publishedOnRelays = await RelayController.getInstance().publish(
+    signedEvent as Event
+  )
 
   // Handle cases where publishing to the relays failed
   if (publishedOnRelays.length === 0) {
@@ -172,9 +170,7 @@ export const signAndPublish = async (
  */
 export const sendDMUsingRandomKey = async (
   message: string,
-  receiver: string,
-  ndk: NDK,
-  publish: (event: NDKEvent) => Promise<string[]>
+  receiver: string
 ) => {
   // Generate a random secret key for encrypting the message
   const secretKey = generateSecretKey()
@@ -205,8 +201,11 @@ export const sendDMUsingRandomKey = async (
   // Finalize and sign the event using the generated secret key
   const signedEvent = finalizeEvent(unsignedEvent, secretKey)
 
-  const ndkEvent = new NDKEvent(ndk, signedEvent)
-  const publishedOnRelays = await publish(ndkEvent)
+  // Publish the signed event (the encrypted DM) to the relays
+  const publishedOnRelays = await RelayController.getInstance().publishDM(
+    signedEvent,
+    receiver
+  )
 
   // Handle cases where publishing to the relays failed
   if (publishedOnRelays.length === 0) {

src/utils/utils.ts

@@ -135,14 +135,3 @@ export const handleModImageError = (
 ) => {
   e.currentTarget.src = import.meta.env.VITE_FALLBACK_MOD_IMAGE
 }
-
-export const scrollIntoView = (el: HTMLElement | null) => {
-  if (el) {
-    setTimeout(() => {
-      el.scrollIntoView({
-        behavior: 'smooth',
-        block: 'start'
-      })
-    }, 100)
-  }
-}