Add Reposts view

damus.xcodeproj/project.pbxproj

@@ -12,6 +12,9 @@
 		3169CAED294FCCFC00EE4006 /* Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3169CAEC294FCCFC00EE4006 /* Constants.swift */; };
 		31D2E847295218AF006D67F8 /* Shimmer.swift in Sources */ = {isa = PBXBuildFile; fileRef = 31D2E846295218AF006D67F8 /* Shimmer.swift */; };
 		3A4325A82961E11400BFCD9D /* Localizable.stringsdict in Resources */ = {isa = PBXBuildFile; fileRef = 3A4325AA2961E11400BFCD9D /* Localizable.stringsdict */; };
+		3AA247FD297E3CFF0090C62D /* RepostsModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA247FC297E3CFF0090C62D /* RepostsModel.swift */; };
+		3AA247FF297E3D900090C62D /* RepostsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA247FE297E3D900090C62D /* RepostsView.swift */; };
+		3AA24802297E3DC20090C62D /* RepostView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3AA24801297E3DC20090C62D /* RepostView.swift */; };
 		3ACB685C297633BC00C46468 /* InfoPlist.strings in Resources */ = {isa = PBXBuildFile; fileRef = 3ACB685A297633BC00C46468 /* InfoPlist.strings */; };
 		3ACB685F297633BC00C46468 /* Localizable.strings in Resources */ = {isa = PBXBuildFile; fileRef = 3ACB685D297633BC00C46468 /* Localizable.strings */; };
 		3ACBCB78295FE5C70037388A /* TimeAgoTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3ACBCB77295FE5C70037388A /* TimeAgoTests.swift */; };
@@ -202,6 +205,9 @@
 		3A5EA10F297CCF6C00569477 /* de-AT */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "de-AT"; path = "de-AT.lproj/InfoPlist.strings"; sourceTree = "<group>"; };
 		3A5EA110297CCF6C00569477 /* de-AT */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "de-AT"; path = "de-AT.lproj/Localizable.strings"; sourceTree = "<group>"; };
 		3A5EA111297CCF6C00569477 /* de-AT */ = {isa = PBXFileReference; lastKnownFileType = text.plist.stringsdict; name = "de-AT"; path = "de-AT.lproj/Localizable.stringsdict"; sourceTree = "<group>"; };
+		3AA247FC297E3CFF0090C62D /* RepostsModel.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RepostsModel.swift; sourceTree = "<group>"; };
+		3AA247FE297E3D900090C62D /* RepostsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RepostsView.swift; sourceTree = "<group>"; };
+		3AA24801297E3DC20090C62D /* RepostView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RepostView.swift; sourceTree = "<group>"; };
 		3ACB685B297633BC00C46468 /* es-419 */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "es-419"; path = "es-419.lproj/InfoPlist.strings"; sourceTree = "<group>"; };
 		3ACB685E297633BC00C46468 /* es-419 */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "es-419"; path = "es-419.lproj/Localizable.strings"; sourceTree = "<group>"; };
 		3ACBCB77295FE5C70037388A /* TimeAgoTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimeAgoTests.swift; sourceTree = "<group>"; };
@@ -439,6 +445,14 @@
 			path = "Empty Views";
 			sourceTree = "<group>";
 		};
+		3AA24800297E3DAE0090C62D /* Reposts */ = {
+			isa = PBXGroup;
+			children = (
+				3AA24801297E3DC20090C62D /* RepostView.swift */,
+			);
+			path = Reposts;
+			sourceTree = "<group>";
+		};
 		4C06670728FDE62900038D2A /* damus-c */ = {
 			isa = PBXGroup;
 			children = (
@@ -496,6 +510,7 @@
 		4C0A3F8D280F63FF000448DE /* Models */ = {
 			isa = PBXGroup;
 			children = (
+				3AA247FC297E3CFF0090C62D /* RepostsModel.swift */,
 				4C0A3F8E280F640A000448DE /* ThreadModel.swift */,
 				4C0A3F92280F66F5000448DE /* ReplyMap.swift */,
 				4C3BEFD12819DB9B00B3DE84 /* ProfileModel.swift */,
@@ -535,6 +550,7 @@
 			isa = PBXGroup;
 			children = (
 				4CC7AAEE297F11B300430951 /* Events */,
+				3AA24800297E3DAE0090C62D /* Reposts */,
 				4CB88394296F7F8100DC99E7 /* Reactions */,
 				4CB88387296AF97C00DC99E7 /* ActionBar */,
 				4CE4F9E228528C5200C00DD9 /* AddRelayView.swift */,
@@ -584,6 +600,7 @@
 				9609F057296E220800069BF3 /* BannerImageView.swift */,
 				4CB8838E296F781C00DC99E7 /* ReactionsView.swift */,
 				6439E013296790CF0020672B /* ProfileZoomView.swift */,
+				3AA247FE297E3D900090C62D /* RepostsView.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -945,6 +962,7 @@
 				4CC7AAED297F0B9E00430951 /* Highlight.swift in Sources */,
 				4C285C8A2838B985008A31F1 /* ProfilePictureSelector.swift in Sources */,
 				4C75EFB92804A2740006080F /* EventView.swift in Sources */,
+				3AA247FD297E3CFF0090C62D /* RepostsModel.swift in Sources */,
 				4C7FF7D52823313F009601DB /* Mentions.swift in Sources */,
 				4C633350283D40E500B1C9C3 /* HomeModel.swift in Sources */,
 				4C987B57283FD07F0042CE38 /* FollowersModel.swift in Sources */,
@@ -1011,6 +1029,7 @@
 				4C75EFAF28049D350006080F /* NostrFilter.swift in Sources */,
 				4C3EA64C28FF59AC00C48A62 /* bech32_util.c in Sources */,
 				4C363A9C282838B9006E126D /* EventRef.swift in Sources */,
+				3AA24802297E3DC20090C62D /* RepostView.swift in Sources */,
 				4CD7641B28A1641400B6928F /* EndBlock.swift in Sources */,
 				4C3EA66528FF5F6800C48A62 /* mem.c in Sources */,
 				4CBCA930297DB57F00EC6B2F /* WebsiteLink.swift in Sources */,
@@ -1056,6 +1075,7 @@
 				4C0A3F97280F8E02000448DE /* ThreadView.swift in Sources */,
 				4C06670B28FDE64700038D2A /* damus.c in Sources */,
 				4FE60CDD295E1C5E00105A1F /* Wallet.swift in Sources */,
+				3AA247FF297E3D900090C62D /* RepostsView.swift in Sources */,
 				4C99737B28C92A9200E53835 /* ChatroomMetadata.swift in Sources */,
 				4CC7AAF4297F18B400430951 /* ReplyDescription.swift in Sources */,
 				4C75EFA427FA577B0006080F /* PostView.swift in Sources */,

damus/Models/RepostsModel.swift

@@ -0,0 +1,77 @@
+//
+//  RepostsModel.swift
+//  damus
+//
+//  Created by Terry Yiu on 1/22/23.
+//
+
+import Foundation
+
+class RepostsModel: ObservableObject {
+    let state: DamusState
+    let target: String
+    let sub_id: String
+    let profiles_id: String
+
+    @Published var reposts: [NostrEvent]
+
+    init (state: DamusState, target: String) {
+        self.state = state
+        self.target = target
+        self.sub_id = UUID().description
+        self.profiles_id = UUID().description
+        self.reposts = []
+    }
+
+    func get_filter() -> NostrFilter {
+        var filter = NostrFilter.filter_kinds([NostrKind.boost.rawValue])
+        filter.referenced_ids = [target]
+        filter.limit = 500
+        return filter
+    }
+
+    func subscribe() {
+        let filter = get_filter()
+        let filters = [filter]
+        self.state.pool.subscribe(sub_id: sub_id, filters: filters, handler: handle_nostr_event)
+    }
+
+    func unsubscribe() {
+        self.state.pool.unsubscribe(sub_id: sub_id)
+    }
+
+    func handle_event(relay_id: String, ev: NostrEvent) {
+        guard ev.kind == NostrKind.boost.rawValue else {
+            return
+        }
+
+        guard let reposted_event = last_etag(tags: ev.tags) else {
+            return
+        }
+
+        guard reposted_event == self.target else {
+            return
+        }
+
+        if insert_uniq_sorted_event(events: &self.reposts, new_ev: ev, cmp: { a, b in a.created_at < b.created_at } ) {
+            objectWillChange.send()
+        }
+    }
+
+    func handle_nostr_event(relay_id: String, ev: NostrConnectionEvent) {
+        guard case .nostr_event(let nev) = ev else {
+            return
+        }
+
+        switch nev {
+        case .event(_, let ev):
+            handle_event(relay_id: relay_id, ev: ev)
+
+        case .notice(_):
+            break
+        case .eose(_):
+            load_profiles(profiles_subid: profiles_id, relay_id: relay_id, events: reposts, damus_state: state)
+            break
+        }
+    }
+}

damus/Views/ActionBar/EventDetailBar.swift

@@ -15,7 +15,10 @@ struct EventDetailBar: View {
     var body: some View {
         HStack {
             if bar.boosts > 0 {
-                Text("\(Text("\(bar.boosts)", comment: "Number of reposts.").font(.body.bold())) \(Text(String(format: NSLocalizedString("reposts_count", comment: "Part of a larger sentence to describe how many reposts there are."), bar.boosts)).foregroundColor(.gray))", comment: "Sentence composed of 2 variables to describe how many reposts. In source English, the first variable is the number of reposts, and the second variable is 'Repost' or 'Reposts'.")
+                NavigationLink(destination: RepostsView(damus_state: state, model: RepostsModel(state: state, target: target))) {
+                    Text("\(Text("\(bar.boosts)", comment: "Number of reposts.").font(.body.bold())) \(Text(String(format: NSLocalizedString("reposts_count", comment: "Part of a larger sentence to describe how many reposts there are."), bar.boosts)).foregroundColor(.gray))", comment: "Sentence composed of 2 variables to describe how many reposts. In source English, the first variable is the number of reposts, and the second variable is 'Repost' or 'Reposts'.")
+                }
+                .buttonStyle(PlainButtonStyle())
             }
 
             if bar.likes > 0 {

damus/Views/Reposts/RepostView.swift

@@ -0,0 +1,24 @@
+//
+//  RepostView.swift
+//  damus
+//
+//  Created by Terry Yiu on 1/22/23.
+//
+
+import SwiftUI
+
+struct RepostView: View {
+    let damus_state: DamusState
+    let repost: NostrEvent
+
+    var body: some View {
+        FollowUserView(target: .pubkey(repost.pubkey), damus_state: damus_state)
+    }
+}
+
+struct RepostView_Previews: PreviewProvider {
+    static var previews: some View {
+        RepostView(damus_state: test_damus_state(), repost: NostrEvent(id: "", content: "", pubkey: ""))
+    }
+}
+

damus/Views/RepostsView.swift

@@ -0,0 +1,38 @@
+//
+//  RepostsView.swift
+//  damus
+//
+//  Created by Terry Yiu on 1/22/23.
+//
+
+import SwiftUI
+
+struct RepostsView: View {
+    let damus_state: DamusState
+    @StateObject var model: RepostsModel
+
+    var body: some View {
+        ScrollView {
+            LazyVStack {
+                ForEach(model.reposts, id: \.id) { ev in
+                    RepostView(damus_state: damus_state, repost: ev)
+                }
+            }
+            .padding()
+        }
+        .navigationBarTitle(NSLocalizedString("Reposts", comment: "Navigation bar title for Reposts view."))
+        .onAppear {
+            model.subscribe()
+        }
+        .onDisappear {
+            model.unsubscribe()
+        }
+    }
+}
+
+struct RepostsView_Previews: PreviewProvider {
+    static var previews: some View {
+        let state = test_damus_state()
+        RepostsView(damus_state: state, model: RepostsModel(state: state, target: "pubkey"))
+    }
+}