followers

Signed-off-by: William Casarin <jb55@jb55.com>

damus.xcodeproj/project.pbxproj

@@ -71,6 +71,7 @@
 		4C90BD18283A9EE5008EE7EF /* LoginView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C90BD17283A9EE5008EE7EF /* LoginView.swift */; };
 		4C90BD1A283AA67F008EE7EF /* Bech32.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C90BD19283AA67F008EE7EF /* Bech32.swift */; };
 		4C90BD1C283AC38E008EE7EF /* Bech32Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C90BD1B283AC38E008EE7EF /* Bech32Tests.swift */; };
+		4C987B57283FD07F0042CE38 /* FollowersModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C987B56283FD07F0042CE38 /* FollowersModel.swift */; };
 		4CA2EFA0280E37AC0044ACD8 /* TimelineView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CA2EF9F280E37AC0044ACD8 /* TimelineView.swift */; };
 		4CACA9D5280C31E100D9BBE8 /* ReplyView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CACA9D4280C31E100D9BBE8 /* ReplyView.swift */; };
 		4CACA9DC280C38C000D9BBE8 /* Profiles.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CACA9DB280C38C000D9BBE8 /* Profiles.swift */; };
@@ -177,6 +178,7 @@
 		4C90BD17283A9EE5008EE7EF /* LoginView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginView.swift; sourceTree = "<group>"; };
 		4C90BD19283AA67F008EE7EF /* Bech32.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Bech32.swift; sourceTree = "<group>"; };
 		4C90BD1B283AC38E008EE7EF /* Bech32Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Bech32Tests.swift; sourceTree = "<group>"; };
+		4C987B56283FD07F0042CE38 /* FollowersModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FollowersModel.swift; sourceTree = "<group>"; };
 		4CA2EF9F280E37AC0044ACD8 /* TimelineView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineView.swift; sourceTree = "<group>"; };
 		4CACA9D4280C31E100D9BBE8 /* ReplyView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ReplyView.swift; sourceTree = "<group>"; };
 		4CACA9DB280C38C000D9BBE8 /* Profiles.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Profiles.swift; sourceTree = "<group>"; };
@@ -253,6 +255,7 @@
 				4C5F9113283D694D0052CD1C /* FollowTarget.swift */,
 				4C5F9115283D855D0052CD1C /* EventsModel.swift */,
 				4C5F9117283D88E40052CD1C /* FollowingModel.swift */,
+				4C987B56283FD07F0042CE38 /* FollowersModel.swift */,
 			);
 			path = Models;
 			sourceTree = "<group>";
@@ -558,6 +561,7 @@
 				4C75EFB92804A2740006080F /* EventView.swift in Sources */,
 				4C7FF7D52823313F009601DB /* Mentions.swift in Sources */,
 				4C633350283D40E500B1C9C3 /* HomeModel.swift in Sources */,
+				4C987B57283FD07F0042CE38 /* FollowersModel.swift in Sources */,
 				4C363A9828283441006E126D /* TestingPrivate.swift in Sources */,
 				4C363A9028247A1D006E126D /* NostrLink.swift in Sources */,
 				4C0A3F8C280F5FCA000448DE /* ChatroomView.swift in Sources */,

damus/ContentView.swift

@@ -148,7 +148,8 @@ struct ContentView: View {
         Group {
             if let pk = self.active_profile {
                 let profile_model = ProfileModel(pubkey: pk, damus: damus_state!)
-                ProfileView(damus_state: damus_state!, profile: profile_model)
+                let followers = FollowersModel(damus_state: damus_state!, target: pk)
+                ProfileView(damus_state: damus_state!, profile: profile_model, followers: followers)
             } else {
                 EmptyView()
             }
@@ -355,13 +356,11 @@ struct ContentView: View {
     
 }
 
-/*
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
-        ContentView()
+        ContentView(keypair: Keypair(pubkey: "3efdaebb1d8923ebd99c9e7ace3b4194ab45512e2be79c1b7d68d9243e0d2681", privkey: nil))
     }
 }
- */
 
 
 func get_since_time(last_event: NostrEvent?) -> Int64? {
@@ -372,26 +371,6 @@ func get_since_time(last_event: NostrEvent?) -> Int64? {
     return nil
 }
 
-/*
-func fetch_profiles(relay: URL, pubkeys: [String]) {
-    return NostrFilter(ids: nil, kinds: 3, event_ids: nil, pubkeys: pubkeys, since: nil, until: nil, authors: pubkeys)
-}
-
-
-func nostr_req(relays: [URL], filter: NostrFilter) {
-    if relays.count == 0 {
-        return
-    }
-    let conn = NostrConnection(url: relay) {
-    }
-}
-
-
-func get_profiles()
-
-*/
-
-
 func ws_nostr_event(relay: String, ev: WebSocketEvent) -> NostrEvent? {
     switch ev {
     case .binary(let dat):

damus/Models/FollowersModel.swift

@@ -0,0 +1,66 @@
+//
+//  FollowersModel.swift
+//  damus
+//
+//  Created by William Casarin on 2022-05-26.
+//
+
+import Foundation
+
+class FollowersModel: ObservableObject {
+    let damus_state: DamusState
+    let target: String
+    var needs_sub: Bool = true
+    
+    @Published var contacts: [String] = []
+    var has_contact: Set<String> = Set()
+    
+    let sub_id: String = UUID().description
+    
+    init(damus_state: DamusState, target: String) {
+        self.damus_state = damus_state
+        self.target = target
+    }
+    
+    func get_filter() -> NostrFilter {
+        var filter = NostrFilter.filter_contacts
+        filter.pubkeys = [target]
+        return filter
+    }
+    
+    func subscribe() {
+        let filter = get_filter()
+        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() {
+        self.damus_state.pool.unsubscribe(sub_id: sub_id)
+    }
+    
+    func handle_contact_event(_ ev: NostrEvent) {
+        if has_contact.contains(ev.pubkey) {
+            return
+        }
+        process_contact_event(contacts: damus_state.contacts, pubkey: damus_state.pubkey, ev: ev)
+        contacts.append(ev.pubkey)
+        has_contact.insert(ev.pubkey)
+    }
+    
+    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 == 3 {
+                    handle_contact_event(ev)
+                }
+            case .notice(let msg):
+                print("followingmodel notice: \(msg)")
+            }
+        }
+    }
+}

damus/Models/FollowingModel.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-class FollowingModel: ObservableObject {
+class FollowingModel {
     let damus_state: DamusState
     var needs_sub: Bool = true
     

damus/Views/EventView.swift

@@ -69,7 +69,7 @@ struct EventView: View {
             let profile = damus.profiles.lookup(id: event.pubkey)
             VStack {
                 let pmodel = ProfileModel(pubkey: event.pubkey, damus: damus)
-                let pv = ProfileView(damus_state: damus, profile: pmodel)
+                let pv = ProfileView(damus_state: damus, profile: pmodel, followers: FollowersModel(damus_state: damus, target: event.pubkey))
                 
                 NavigationLink(destination: pv) {
                     ProfilePicView(pubkey: event.pubkey, size: PFP_SIZE, highlight: highlight, image_cache: damus.image_cache, profiles: damus.profiles)

damus/Views/FollowingView.swift

@@ -14,7 +14,8 @@ struct FollowUserView: View {
     var body: some View {
         HStack(alignment: .top) {
             let pmodel = ProfileModel(pubkey: target.pubkey, damus: damus_state)
-            let pv = ProfileView(damus_state: damus_state, profile: pmodel)
+            let followers = FollowersModel(damus_state: damus_state, target: target.pubkey)
+            let pv = ProfileView(damus_state: damus_state, profile: pmodel, followers: followers)
             
             NavigationLink(destination: pv) {
                 ProfilePicView(pubkey: target.pubkey, size: PFP_SIZE, highlight: .none, image_cache: damus_state.image_cache, profiles: damus_state.profiles)
@@ -35,11 +36,27 @@ struct FollowUserView: View {
     }
 }
 
+struct FollowersView: View {
+    let damus_state: DamusState
+    
+    @EnvironmentObject var followers: FollowersModel
+    
+    var body: some View {
+        ScrollView {
+            LazyVStack(alignment: .leading) {
+                ForEach(followers.contacts, id: \.self) { pk in
+                    FollowUserView(target: .pubkey(pk), damus_state: damus_state)
+                }
+            }
+        }
+    }
+    
+}
+
 struct FollowingView: View {
     let damus_state: DamusState
     
-    @StateObject var following: FollowingModel
+    let following: FollowingModel
-    
     
     var body: some View {
         ScrollView {

damus/Views/ProfileView.swift

@@ -50,6 +50,7 @@ struct ProfileView: View {
     
     @State private var selected_tab: ProfileTab = .posts
     @StateObject var profile: ProfileModel
+    @StateObject var followers: FollowersModel
     
     //@EnvironmentObject var profile: ProfileModel
     
@@ -88,14 +89,27 @@ struct ProfileView: View {
                 
                 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 {
-                    HStack {
+                    NavigationLink(destination: FollowingView(damus_state: damus_state, following: following_model)) {
-                        Text("\(profile.following)")
+                        HStack {
-                        Text("Following")
+                            Text("\(profile.following)")
-                            .foregroundColor(.gray)
+                            Text("Following")
+                                .foregroundColor(.gray)
+                        }
                     }
+                    .buttonStyle(PlainButtonStyle())
+                    
+                    let fview = FollowersView(damus_state: damus_state)
+                        .environmentObject(followers)
+                    NavigationLink(destination: fview) {
+                        HStack {
+                            Text("\(followers.contacts.count)")
+                            Text("Followers")
+                                .foregroundColor(.gray)
+                        }
+                    }
+                    .buttonStyle(PlainButtonStyle())
                 }
-                .buttonStyle(PlainButtonStyle())
             }
         }
     }
@@ -117,9 +131,11 @@ struct ProfileView: View {
         .navigationBarTitle("Profile")
         .onAppear() {
             profile.subscribe()
+            followers.subscribe()
         }
         .onDisappear {
             profile.unsubscribe()
+            followers.unsubscribe()
             // our profilemodel needs a bit more help
         }
     }
@@ -128,8 +144,9 @@ struct ProfileView: View {
 struct ProfileView_Previews: PreviewProvider {
     static var previews: some View {
         let ds = test_damus_state()
+        let followers = FollowersModel(damus_state: ds, target: ds.pubkey)
         let profile_model = ProfileModel(pubkey: ds.pubkey, damus: ds)
-        ProfileView(damus_state: ds, profile: profile_model)
+        ProfileView(damus_state: ds, profile: profile_model, followers: followers)
     }
 }