Load profiles everywhere

Fixes: #11
Changelog-Fixed: Missing profiles are now loaded everywhere
Signed-off-by: William Casarin <jb55@jb55.com>

damus/ContentView.swift

@@ -113,7 +113,7 @@ struct ContentView: View {
             }
             switch selected_timeline {
             case .search:
-                SearchHomeView(damus_state: damus_state!, model: SearchHomeModel(pool: damus_state!.pool) )
+                SearchHomeView(damus_state: damus_state!, model: SearchHomeModel(pool: damus_state!.pool, profiles: damus_state!.profiles))
                 
             case .home:
                 PostingTimelineView

damus/Models/FollowersModel.swift

@@ -16,6 +16,7 @@ class FollowersModel: ObservableObject {
     var has_contact: Set<String> = Set()
     
     let sub_id: String = UUID().description
+    let profiles_id: String = UUID().description
     
     init(damus_state: DamusState, target: String) {
         self.damus_state = damus_state
@@ -52,20 +53,44 @@ class FollowersModel: ObservableObject {
         has_contact.insert(ev.pubkey)
     }
     
+    func load_profiles(relay_id: String) {
+        var filter = NostrFilter.filter_profiles
+        let authors = find_profiles_to_fetch_pk(profiles: damus_state.profiles, event_pubkeys: contacts)
+        if authors.isEmpty {
+            return
+        }
+        
+        filter.authors = authors
+        
+        damus_state.pool.subscribe_to(sub_id: profiles_id, filters: [filter], to: [relay_id], handler: handle_event)
+    }
+    
     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 {
+            case .event(let sub_id, let ev):
+                guard sub_id == self.sub_id || sub_id == self.profiles_id else {
+                    return
+                }
+                
+                if ev.known_kind == .contacts {
                     handle_contact_event(ev)
+                } else if ev.known_kind == .metadata {
+                    process_metadata_event(profiles: self.damus_state.profiles, ev: ev)
                 }
+                
             case .notice(let msg):
                 print("followingmodel notice: \(msg)")
-            case .eose:
-                break
+                
+            case .eose(let sub_id):
+                if sub_id == self.sub_id {
+                    load_profiles(relay_id: relay_id)
+                } else if sub_id == self.profiles_id {
+                    damus_state.pool.unsubscribe(sub_id: profiles_id, to: [relay_id])
+                }
             }
         }
     }

damus/Models/SearchHomeModel.swift

@@ -14,16 +14,19 @@ class SearchHomeModel: ObservableObject {
     @Published var loading: Bool = false
 
     var seen_pubkey: Set<String> = Set()
+    let profiles: Profiles
     let pool: RelayPool
-    let sub_id = UUID().description
+    let base_subid = UUID().description
+    let profiles_subid = UUID().description
     let limit: UInt32 = 250
     
-    init(pool: RelayPool) {
+    init(pool: RelayPool, profiles: Profiles) {
         self.pool = pool
+        self.profiles = profiles
     }
     
     func get_base_filter() -> NostrFilter {
-        var filter = NostrFilter.filter_text
+        var filter = NostrFilter.filter_kinds([1, 42])
         filter.limit = self.limit
         filter.until = Int64(Date.now.timeIntervalSince1970)
         return filter
@@ -31,12 +34,22 @@ class SearchHomeModel: ObservableObject {
     
     func subscribe() {
         loading = true
-        pool.subscribe(sub_id: sub_id, filters: [get_base_filter()], handler: handle_event)
+        pool.subscribe(sub_id: base_subid, filters: [get_base_filter()], handler: handle_event)
     }
 
     func unsubscribe() {
         loading = false
-        pool.unsubscribe(sub_id: sub_id)
+        pool.unsubscribe(sub_id: base_subid)
+    }
+    
+    func load_profiles(relay_id: String) {
+        var filter = NostrFilter.filter_profiles
+        let authors = find_profiles_to_fetch(profiles: profiles, events: events)
+        filter.authors = authors
+        
+        if !authors.isEmpty {
+            pool.subscribe(sub_id: profiles_subid, filters: [filter], handler: handle_event)
+        }
     }
     
     func handle_event(relay_id: String, conn_ev: NostrConnectionEvent) {
@@ -46,7 +59,7 @@ class SearchHomeModel: ObservableObject {
         case .nostr_event(let event):
             switch event {
             case .event(let sub_id, let ev):
-                guard sub_id == self.sub_id else {
+                guard sub_id == self.base_subid || sub_id == self.profiles_subid else {
                     return
                 }
                 if ev.kind == NostrKind.text.rawValue {
@@ -57,13 +70,50 @@ class SearchHomeModel: ObservableObject {
                     let _ = insert_uniq_sorted_event(events: &events, new_ev: ev) {
                         $0.created_at > $1.created_at
                     }
+                } else if ev.known_kind == .metadata {
+                    process_metadata_event(profiles: self.profiles, ev: ev)
                 }
             case .notice(let msg):
                 print("search home notice: \(msg)")
-            case .eose:
+            case .eose(let sub_id):
                 loading = false
+                
+                if sub_id == self.base_subid {
+                    load_profiles(relay_id: relay_id)
+                } else if sub_id == self.profiles_subid {
+                    pool.unsubscribe(sub_id: self.profiles_subid)
+                }
+                
                 break
             }
         }
     }
 }
+
+func find_profiles_to_fetch_pk(profiles: Profiles, event_pubkeys: [String]) -> [String] {
+    var pubkeys = Set<String>()
+    
+    for pk in event_pubkeys {
+        if profiles.lookup(id: pk) != nil {
+            continue
+        }
+        
+        pubkeys.insert(pk)
+    }
+    
+    return Array(pubkeys)
+}
+    
+func find_profiles_to_fetch(profiles: Profiles, events: [NostrEvent]) -> [String] {
+    var pubkeys = Set<String>()
+    
+    for ev in events {
+        if profiles.lookup(id: ev.pubkey) != nil {
+            continue
+        }
+        
+        pubkeys.insert(ev.pubkey)
+    }
+    
+    return Array(pubkeys)
+}

damus/Nostr/NostrResponse.swift

@@ -10,7 +10,7 @@ import Foundation
 enum NostrResponse: Decodable {
     case event(String, NostrEvent)
     case notice(String)
-    case eose
+    case eose(String)
 
     init(from decoder: Decoder) throws {
         var container = try decoder.unkeyedContainer()
@@ -34,7 +34,8 @@ enum NostrResponse: Decodable {
             self = .notice(msg)
             return
         } else if typ == "EOSE" {
-            self = .eose
+            let sub_id = try container.decode(String.self)
+            self = .eose(sub_id)
             return
         }
 

damus/Nostr/RelayPool.swift

@@ -107,7 +107,7 @@ class RelayPool {
         }
     }
     
-    func unsubscribe(sub_id: String) {
+    func unsubscribe(sub_id: String, to: [String]? = nil) {
         self.remove_handler(sub_id: sub_id)
         self.send(.unsubscribe(sub_id))
     }
@@ -117,6 +117,11 @@ class RelayPool {
         send(.subscribe(.init(filters: filters, sub_id: sub_id)))
     }
     
+    func subscribe_to(sub_id: String, filters: [NostrFilter], to: [String]?, handler: @escaping (String, NostrConnectionEvent) -> ()) {
+        register_handler(sub_id: sub_id, handler: handler)
+        send(.subscribe(.init(filters: filters, sub_id: sub_id)), to: to)
+    }
+    
     func send(_ req: NostrRequest, to: [String]? = nil) {
         let relays = to.map{ get_relays($0) } ?? self.relays
 

damus/Views/SearchHomeView.swift

@@ -70,7 +70,7 @@ struct SearchHomeView_Previews: PreviewProvider {
         let state = test_damus_state()
         SearchHomeView(
             damus_state: state,
-            model: SearchHomeModel(pool: state.pool)
+            model: SearchHomeModel(pool: state.pool, profiles: state.profiles)
         )
     }
 }