better main view, add initial post view

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

damus.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		4C75EFA427FA577B0006080F /* PostView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4C75EFA327FA577B0006080F /* PostView.swift */; };
 		4CE6DEE727F7A08100C66700 /* damusApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CE6DEE627F7A08100C66700 /* damusApp.swift */; };
 		4CE6DEE927F7A08100C66700 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4CE6DEE827F7A08100C66700 /* ContentView.swift */; };
 		4CE6DEEB27F7A08200C66700 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 4CE6DEEA27F7A08200C66700 /* Assets.xcassets */; };
@@ -37,6 +38,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		4C75EFA327FA577B0006080F /* PostView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PostView.swift; sourceTree = "<group>"; };
 		4CE6DEE327F7A08100C66700 /* damus.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = damus.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		4CE6DEE627F7A08100C66700 /* damusApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = damusApp.swift; sourceTree = "<group>"; };
 		4CE6DEE827F7A08100C66700 /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
@@ -77,6 +79,14 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		4C75EFA227FA576C0006080F /* Views */ = {
+			isa = PBXGroup;
+			children = (
+				4C75EFA327FA577B0006080F /* PostView.swift */,
+			);
+			path = Views;
+			sourceTree = "<group>";
+		};
 		4CE6DEDA27F7A08100C66700 = {
 			isa = PBXGroup;
 			children = (
@@ -100,6 +110,7 @@
 		4CE6DEE527F7A08100C66700 /* damus */ = {
 			isa = PBXGroup;
 			children = (
+				4C75EFA227FA576C0006080F /* Views */,
 				4CE6DEE627F7A08100C66700 /* damusApp.swift */,
 				4CE6DEE827F7A08100C66700 /* ContentView.swift */,
 				4CE6DEEA27F7A08200C66700 /* Assets.xcassets */,
@@ -275,6 +286,7 @@
 				4CE6DF1427F7A45200C66700 /* WSConnection.swift in Sources */,
 				4CE6DF1627F8DEBF00C66700 /* NostrConnection.swift in Sources */,
 				4CE6DEE727F7A08100C66700 /* damusApp.swift in Sources */,
+				4C75EFA427FA577B0006080F /* PostView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -361,7 +373,8 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 15.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.3;
+				MACOSX_DEPLOYMENT_TARGET = 12.3;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -415,7 +428,8 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 15.4;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.3;
+				MACOSX_DEPLOYMENT_TARGET = 12.3;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;

damus/ContentView.swift

@@ -8,36 +8,111 @@
 import SwiftUI
 import Starscream
 
+struct EventView: View {
+    let event: NostrEvent
+
+    var body: some View {
+        VStack {
+            Text(String(event.pubkey.prefix(16)))
+                .bold()
+                .onTapGesture {
+                    UIPasteboard.general.string = event.pubkey
+                }
+                .frame(maxWidth: .infinity, alignment: .leading)
+            Text(event.content)
+                .textSelection(.enabled)
+                .frame(maxWidth: .infinity, alignment: .leading)
+            Divider()
+        }
+    }
+}
+
+enum Sheets: Identifiable {
+    case post
+
+    var id: String {
+        switch self {
+        case .post:
+            return "post"
+        }
+    }
+}
+
 struct ContentView: View {
     @State var status: String = "Not connected"
+    @State var sub_id: String? = nil
+    @State var active_sheet: Sheets? = nil
     @State var events: [NostrEvent] = []
     @State var connection: NostrConnection? = nil
 
-    var body: some View {
+    var MainContent: some View {
-        ForEach(events, id: \.id) {
+        ScrollView {
-            Text($0.content)
+            ForEach(events.reversed(), id: \.id) {
-                .padding()
+                EventView(event: $0)
-        }
+            }
-        .onAppear() {
-            let url = URL(string: "wss://nostr.bitcoiner.social")!
-            let conn = NostrConnection(url: url, handleEvent: handle_event)
-            conn.connect()
-            self.connection = conn
         }
     }
 
-    func handle_event(conn_event: NostrConnectionEvent) {
+    var body: some View {
+        ZStack {
+            MainContent
+            VStack {
+                Spacer()
 
+                HStack {
+                    Spacer()
+                    PostButton {
+                        self.active_sheet = .post
+                    }
+                }
+            }
+        }
+        .onAppear() {
+            self.connect()
+        }
+        .sheet(item: $active_sheet) { item in
+            switch item {
+            case .post:
+                PostView()
+            }
+        }
+    }
+
+    func connect() {
+        let url = URL(string: "wss://nostr.bitcoiner.social")!
+        let conn = NostrConnection(url: url, handleEvent: handle_event)
+        conn.connect()
+        self.connection = conn
+    }
+
+    func handle_event(conn_event: NostrConnectionEvent) {
         switch conn_event {
         case .ws_event(let ev):
-            if case .connected = ev {
+            switch ev {
-                self.connection?.send(NostrFilter.filter_since(1648851447))
+            case .connected:
+                let now = Int64(Date().timeIntervalSince1970)
+                let yesterday = now - 24 * 60 * 60
+                let filter = NostrFilter.filter_since(yesterday)
+                let sub_id = self.sub_id ?? UUID().description
+                if self.sub_id != sub_id {
+                    self.sub_id = sub_id
+                }
+                self.connection?.send(filter, sub_id: sub_id)
+            case .cancelled:
+                self.connection?.connect()
+            default:
+                break
             }
             print("ws_event \(ev)")
+
         case .nostr_event(let ev):
             switch ev {
             case .event(_, let ev):
-                self.events.append(ev)
+                self.sub_id = sub_id
+                if ev.kind == 1 {
+                    self.events.append(ev)
+                }
+                print(ev)
             case .notice(let msg):
                 print(msg)
             }
@@ -50,3 +125,21 @@ struct ContentView_Previews: PreviewProvider {
         ContentView()
     }
 }
+
+func PostButton(action: @escaping () -> ()) -> some View {
+    return Button(action: action, label: {
+        Text("+")
+            .font(.system(.largeTitle))
+            .frame(width: 67, height: 60)
+            .foregroundColor(Color.white)
+            .padding(.bottom, 7)
+    })
+    .background(Color.blue)
+    .cornerRadius(38.5)
+    .padding()
+    .shadow(color: Color.black.opacity(0.3),
+            radius: 3,
+            x: 3,
+            y: 3)
+}
+

damus/NostrConnection.swift

@@ -28,6 +28,11 @@ enum NostrTag {
     case key_event(KeyEvent)
 }
 
+struct NostrSubscription {
+    let sub_id: String
+    let filter: NostrFilter
+}
+
 struct NostrFilter: Codable {
     let ids: [String]?
     let kinds: [String]?
@@ -114,8 +119,8 @@ class NostrConnection: WebSocketDelegate {
         socket.disconnect()
     }
     
-    func send(_ filter: NostrFilter) {
+    func send(_ filter: NostrFilter, sub_id: String) {
-        guard let req = make_nostr_req(filter) else {
+        guard let req = make_nostr_req(filter, sub_id: sub_id) else {
             print("failed to encode nostr req: \(filter)")
             return
         }
@@ -165,14 +170,7 @@ func decode_data<T: Decodable>(_ data: Data) -> T? {
     return nil
 }
 
-func make_nostr_req(_ filter: NostrFilter) -> String? {
+func make_nostr_req(_ filter: NostrFilter, sub_id: String) -> String? {
-    let sub_id = UUID()
-    var params: [Encodable] = []
-    
-    params.append("REQ")
-    params.append(sub_id)
-    params.append(filter)
-    
     let encoder = JSONEncoder()
     guard let filter_json = try? encoder.encode(filter) else {
         return nil

damus/Views/PostView.swift

@@ -0,0 +1,20 @@
+//
+//  Post.swift
+//  damus
+//
+//  Created by William Casarin on 2022-04-03.
+//
+
+import SwiftUI
+
+struct PostView: View {
+    var body: some View {
+        Text("New post")
+    }
+}
+
+struct Post_Previews: PreviewProvider {
+    static var previews: some View {
+        PostView()
+    }
+}

damus/WSConnection.swift

@@ -1,50 +0,0 @@
-//
-//  Connection.swift
-//  damus
-//
-//  Created by William Casarin on 2022-04-01.
-//
-
-import Foundation
-import Starscream
-
-class WSConnection: WebSocketDelegate {
-    var isConnected: Bool = false
-    var socket: WebSocket
-    var handleEvent: (WebSocketEvent) -> ()
-    
-    init(url: URL, handleEvent: @escaping (WebSocketEvent) -> ()) {
-        var req = URLRequest(url: url)
-        req.timeoutInterval = 5
-        self.socket = WebSocket(request: req)
-        self.handleEvent = handleEvent
-        
-        socket.delegate = self
-    }
-    
-    func connect(){
-        socket.connect()
-    }
-    
-    func disconnect() {
-        socket.disconnect()
-    }
-    
-    func didReceive(event: WebSocketEvent, client: WebSocket) {
-        switch event {
-        case .connected:
-            self.isConnected = true
-            
-        case .disconnected: fallthrough
-        case .cancelled: fallthrough
-        case .error:
-            self.isConnected = false
-            
-        default:
-            break
-        }
-        
-        handleEvent(event)
-    }
-    
-}