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fetch following contacts if we are missing any

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Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2022-05-24 15:29:28 -07:00
parent 8aac880bb5
commit dbf8c932ae
7 changed files with 136 additions and 29 deletions
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4
damus.xcodeproj/project.pbxproj
View File

@@ -52,6 +52,7 @@
4C477C9E282C3A4800033AA3 /* TipCounter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C477C9D282C3A4800033AA3 /* TipCounter.swift */; };
4C5F9114283D694D0052CD1C /* FollowTarget.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C5F9113283D694D0052CD1C /* FollowTarget.swift */; };
4C5F9116283D855D0052CD1C /* EventsModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C5F9115283D855D0052CD1C /* EventsModel.swift */; };
4C5F9118283D88E40052CD1C /* FollowingModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C5F9117283D88E40052CD1C /* FollowingModel.swift */; };
4C633350283D40E500B1C9C3 /* HomeModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C63334F283D40E500B1C9C3 /* HomeModel.swift */; };
4C633352283D419F00B1C9C3 /* SignalModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C633351283D419F00B1C9C3 /* SignalModel.swift */; };
4C75EFA427FA577B0006080F /* PostView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C75EFA327FA577B0006080F /* PostView.swift */; };
@@ -156,6 +157,7 @@
4C477C9D282C3A4800033AA3 /* TipCounter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TipCounter.swift; sourceTree = "<group>"; };
4C5F9113283D694D0052CD1C /* FollowTarget.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FollowTarget.swift; sourceTree = "<group>"; };
4C5F9115283D855D0052CD1C /* EventsModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EventsModel.swift; sourceTree = "<group>"; };
4C5F9117283D88E40052CD1C /* FollowingModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FollowingModel.swift; sourceTree = "<group>"; };
4C63334F283D40E500B1C9C3 /* HomeModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeModel.swift; sourceTree = "<group>"; };
4C633351283D419F00B1C9C3 /* SignalModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SignalModel.swift; sourceTree = "<group>"; };
4C75EFA327FA577B0006080F /* PostView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PostView.swift; sourceTree = "<group>"; };
@@ -250,6 +252,7 @@
4C633351283D419F00B1C9C3 /* SignalModel.swift */,
4C5F9113283D694D0052CD1C /* FollowTarget.swift */,
4C5F9115283D855D0052CD1C /* EventsModel.swift */,
4C5F9117283D88E40052CD1C /* FollowingModel.swift */,
);
path = Models;
sourceTree = "<group>";
@@ -603,6 +606,7 @@
4C0A3F95280F6C78000448DE /* ReplyQuoteView.swift in Sources */,
4C3BEFDA281DCA1400B3DE84 /* LikeCounter.swift in Sources */,
4C3AC79B28306D7B00E1F516 /* Contacts.swift in Sources */,
4C5F9118283D88E40052CD1C /* FollowingModel.swift in Sources */,
4C363A8E28236FE4006E126D /* NoteContentView.swift in Sources */,
4C90BD1A283AA67F008EE7EF /* Bech32.swift in Sources */,
4CACA9D5280C31E100D9BBE8 /* ReplyView.swift in Sources */,

70
damus/Models/FollowingModel.swift Normal file
View File

@@ -0,0 +1,70 @@
//
// FollowingModel.swift
// damus
//
// Created by William Casarin on 2022-05-24.
//
import Foundation
class FollowingModel: ObservableObject {
let damus_state: DamusState
var needs_sub: Bool = true
var has_contact: Set<String> = Set()
let contacts: [String]
let sub_id: String = UUID().description
init(damus_state: DamusState, contacts: [String]) {
self.damus_state = damus_state
self.contacts = contacts
}
func get_filter() -> NostrFilter {
var f = NostrFilter.filter_kinds([0])
f.authors = self.contacts.reduce(into: Array<String>()) { acc, pk in
// don't fetch profiles we already have
if damus_state.profiles.lookup(id: pk) != nil {
return
}
acc.append(pk)
}
return f
}
func subscribe() {
let filter = get_filter()
if (filter.authors?.count ?? 0) == 0 {
needs_sub = false
return
}
let filters = [filter]
print_filters(relay_id: "following", filters: [filters])
self.damus_state.pool.subscribe(sub_id: sub_id, filters: filters, handler: handle_event)
}
func unsubscribe() {
if !needs_sub {
return
}
print("unsubscribing from following \(sub_id)")
self.damus_state.pool.unsubscribe(sub_id: sub_id)
}
func handle_event(relay_id: String, ev: NostrConnectionEvent) {
switch ev {
case .ws_event:
break
case .nostr_event(let nev):
switch nev {
case .event(_, let ev):
if ev.kind == 0 {
process_metadata_event(profiles: damus_state.profiles, ev: ev)
}
case .notice(let msg):
print("followingmodel notice: \(msg)")
}
}
}
}

42
damus/Models/HomeModel.swift
View File

@@ -69,8 +69,7 @@ class HomeModel: ObservableObject {
}
func handle_contact_event(sub_id: String, relay_id: String, ev: NostrEvent) {
load_our_contacts(contacts: self.damus_state.contacts, our_pubkey: self.damus_state.pubkey, ev: ev)
add_contact_if_friend(contacts: self.damus_state.contacts, ev: ev)
process_contact_event(contacts: damus_state.contacts, pubkey: damus_state.pubkey, ev: ev)
if sub_id == init_subid {
pool.send(.unsubscribe(init_subid), to: [relay_id])
@@ -246,21 +245,7 @@ class HomeModel: ObservableObject {
}
func handle_metadata_event(_ ev: NostrEvent) {
guard let profile: Profile = decode_data(Data(ev.content.utf8)) else {
return
}
if let mprof = damus_state.profiles.lookup_with_timestamp(id: ev.pubkey) {
if mprof.timestamp > ev.created_at {
// skip if we already have an newer profile
return
}
}
let tprof = TimestampedProfile(profile: profile, timestamp: ev.created_at)
damus_state.profiles.add(id: ev.pubkey, profile: tprof)
notify(.profile_updated, ProfileUpdate(pubkey: ev.pubkey, profile: profile))
process_metadata_event(profiles: damus_state.profiles, ev: ev)
}
func get_last_event_of_kind(relay_id: String, kind: Int) -> NostrEvent? {
@@ -392,3 +377,26 @@ func print_filters(relay_id: String?, filters groups: [[NostrFilter]]) {
}
print("-----")
}
func process_metadata_event(profiles: Profiles, ev: NostrEvent) {
guard let profile: Profile = decode_data(Data(ev.content.utf8)) else {
return
}
if let mprof = profiles.lookup_with_timestamp(id: ev.pubkey) {
if mprof.timestamp > ev.created_at {
// skip if we already have an newer profile
return
}
}
let tprof = TimestampedProfile(profile: profile, timestamp: ev.created_at)
profiles.add(id: ev.pubkey, profile: tprof)
notify(.profile_updated, ProfileUpdate(pubkey: ev.pubkey, profile: profile))
}
func process_contact_event(contacts: Contacts, pubkey: String, ev: NostrEvent) {
load_our_contacts(contacts: contacts, our_pubkey: pubkey, ev: ev)
add_contact_if_friend(contacts: contacts, ev: ev)
}

11
damus/Models/ProfileModel.swift
View File

@@ -39,19 +39,14 @@ class ProfileModel: ObservableObject {
var profile_filter = NostrFilter.filter_kinds([
NostrKind.text.rawValue,
NostrKind.boost.rawValue,
NostrKind.metadata.rawValue,
NostrKind.contacts.rawValue,
NostrKind.like.rawValue
])
profile_filter.authors = [pubkey]
var contact_pks = (contacts?.referenced_pubkeys.map { $0.ref_id }) ?? []
contact_pks.append(pubkey)
var contacts_filter = NostrFilter.filter_kinds([0,3])
contacts_filter.authors = contact_pks
profile_filter.limit = 1000
let filters = [profile_filter, contacts_filter]
let filters = [profile_filter]
print("subscribing to profile \(pubkey) with sub_id \(sub_id)")
print_filters(relay_id: "profile", filters: [filters])

20
damus/Util/InsertSort.swift
View File

@@ -18,6 +18,26 @@ func insert_uniq<T: Equatable>(xs: inout [T], new_x: T) -> Bool {
return true
}
func insert_uniq_by_pubkey(events: inout [NostrEvent], new_ev: NostrEvent, cmp: (NostrEvent, NostrEvent) -> Bool) -> Bool {
var i: Int = 0
for event in events {
// don't insert duplicate events
if new_ev.pubkey == event.pubkey {
return false
}
if cmp(new_ev, event) {
events.insert(new_ev, at: i)
return true
}
i += 1
}
events.append(new_ev)
return true
}
func insert_uniq_sorted_event(events: inout [NostrEvent], new_ev: NostrEvent, cmp: (NostrEvent, NostrEvent) -> Bool) -> Bool {
var i: Int = 0

14
damus/Views/FollowingView.swift
View File

@@ -36,17 +36,25 @@ struct FollowUserView: View {
}
struct FollowingView: View {
let contact: NostrEvent
let damus_state: DamusState
@StateObject var following: FollowingModel
var body: some View {
ScrollView {
LazyVStack(alignment: .leading) {
ForEach(contact.referenced_pubkeys) { pk in
FollowUserView(target: .pubkey(pk.ref_id), damus_state: damus_state)
ForEach(following.contacts, id: \.self) { pk in
FollowUserView(target: .pubkey(pk), damus_state: damus_state)
}
}
}
.onAppear {
following.subscribe()
}
.onDisappear {
following.unsubscribe()
}
}
}

4
damus/Views/ProfileView.swift
View File

@@ -79,7 +79,9 @@ struct ProfileView: View {
if let contact = profile.contacts {
Divider()
NavigationLink(destination: FollowingView(contact: contact, damus_state: damus_state)) {
let contacts = contact.referenced_pubkeys.map { $0.ref_id }
let following_model = FollowingModel(damus_state: damus_state, contacts: contacts)
NavigationLink(destination: FollowingView(damus_state: damus_state, following: following_model)) {
HStack {
Text("\(profile.following)")
Text("Following")