MenuBarExtra lists Bonjour services. Clicking on a service opens a WebSocket connection.

TODO: Consume the API data from the websocket queries and display them in the UI

KlipperMon.xcodeproj/project.pbxproj

@@ -19,6 +19,7 @@
 		E180B61D2992D53700425DB0 /* PrinterObjectsQuery.swift in Sources */ = {isa = PBXBuildFile; fileRef = E180B61C2992D53700425DB0 /* PrinterObjectsQuery.swift */; };
 		E180B61F2992DBB000425DB0 /* KlipperMonMenuBarExtraView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E180B61E2992DBB000425DB0 /* KlipperMonMenuBarExtraView.swift */; };
 		E180B6222993256E00425DB0 /* PrinterRequestManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = E180B6212993256E00425DB0 /* PrinterRequestManager.swift */; };
+		E1E8B07729949E2700BABE4B /* Starscream in Frameworks */ = {isa = PBXBuildFile; productRef = E1E8B07629949E2700BABE4B /* Starscream */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -63,6 +64,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				E1E8B07729949E2700BABE4B /* Starscream in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -162,6 +164,9 @@
 			dependencies = (
 			);
 			name = KlipperMon;
+			packageProductDependencies = (
+				E1E8B07629949E2700BABE4B /* Starscream */,
+			);
 			productName = KlipperMon;
 			productReference = E180B5E52992CD9100425DB0 /* KlipperMon.app */;
 			productType = "com.apple.product-type.application";
@@ -234,6 +239,9 @@
 				Base,
 			);
 			mainGroup = E180B5DC2992CD9100425DB0;
+			packageReferences = (
+				E1E8B07529949E2700BABE4B /* XCRemoteSwiftPackageReference "Starscream" */,
+			);
 			productRefGroup = E180B5E62992CD9100425DB0 /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
@@ -601,6 +609,25 @@
 		};
 /* End XCConfigurationList section */
 
+/* Begin XCRemoteSwiftPackageReference section */
+		E1E8B07529949E2700BABE4B /* XCRemoteSwiftPackageReference "Starscream" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/daltoniam/Starscream.git";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 4.0.0;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		E1E8B07629949E2700BABE4B /* Starscream */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = E1E8B07529949E2700BABE4B /* XCRemoteSwiftPackageReference "Starscream" */;
+			productName = Starscream;
+		};
+/* End XCSwiftPackageProductDependency section */
+
 /* Begin XCVersionGroup section */
 		E180B5F32992CD9200425DB0 /* KlipperMon.xcdatamodeld */ = {
 			isa = XCVersionGroup;

KlipperMon/Info.plist

@@ -4,6 +4,7 @@
 <dict>
 	<key>NSBonjourServices</key>
 	<array>
+		<string>_moonraker._tcp.</string>
 		<string>_http._tcp.</string>
 	</array>
 	<key>CFBundleURLTypes</key>

KlipperMon/KlipperMonMenuBarExtraView.swift

@@ -7,7 +7,6 @@
 
 import SwiftUI
 import AppKit
-import Network
 
 struct KlipperMenuBarButtonStyle: ButtonStyle {
     func makeBody(configuration: Configuration) -> some View {
@@ -36,9 +35,9 @@ struct KlipperMonMenuBarExtraView: View {
     @State var hotendHotTemp: Bool = false
     @State var bedHotTemp: Bool = false
     
-    @State var nwBrowserDiscoveredItems: [NWEndpoint] = []
+    //@State var nwBrowserDiscoveredItems: [NWEndpoint] = []
     
-    var nwBrowser = NWBrowser(for: .bonjour(type: "_moonraker._tcp.", domain: "local."), using: .tcp)
+    //var nwBrowser = NWBrowser(for: .bonjour(type: "_moonraker._tcp.", domain: "local."), using: .tcp)
     
     let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
     
@@ -120,7 +119,7 @@ struct KlipperMonMenuBarExtraView: View {
         .frame(minWidth: 220, maxWidth: 250)
         .onReceive(timer) { input in
             Task {
-                await printerManager.queryPrinterStats()
+                //await printerManager.queryPrinterStats()
                 
                 if let query = printerManager.printerObjectsQuery {
                     hotendHotTemp = (query.result.status.extruder.temperature > DANGERTEMP) ? true : false
@@ -132,45 +131,11 @@ struct KlipperMonMenuBarExtraView: View {
             }
         }
         // Testing bonjour stuff
-        .onAppear {
+        ForEach(printerManager.nwBrowserDiscoveredItems, id: \.hashValue) { endpoint in
-            nwBrowser.browseResultsChangedHandler = { (newResults, changes) in
-                print("[update] Results changed.")
-                newResults.forEach { result in
-                    print(result)
-                    self.nwBrowserDiscoveredItems.append(result.endpoint)
-                }
-                //self.nwBrowserDiscoveredItems.append(newResults.description)
-            }
-            nwBrowser.stateUpdateHandler = { newState in
-                switch newState {
-                case .failed(let error):
-                    print("[error] nwbrowser: \(error)")
-                case .ready:
-                    print("[ready] nwbrowser")
-                case .setup:
-                    print("[setup] nwbrowser")
-                default:
-                    break
-                }
-            }
-            nwBrowser.start(queue: DispatchQueue.main)
-        }
-        ForEach(nwBrowserDiscoveredItems, id: \.hashValue) { item in
             Button {
-                let connection = NWConnection(to: item, using: .tcp)
+                printerManager.resolveBonjourHost(endpoint)
-                connection.stateUpdateHandler = { newState in
-                    switch newState {
-                    case .failed(let error):
-                        print("[error] nwconnection: \(error)")
-                    case .ready:
-                        print("[ready] nwconnection")
-                    default:
-                        break
-                    }
-                }
-                connection.start(queue: DispatchQueue.main)
             } label: {
-                Text(item.debugDescription)
+                Text(endpoint.debugDescription)
             }
         }
     }

KlipperMon/PrinterRequestManager.swift

@@ -7,21 +7,148 @@
 
 import Foundation
 import Network
+import Starscream
 
-@MainActor
+struct JsonRpcRequest: Encodable {
-class PrinterRequestManager: ObservableObject {
+    let jsonrpc = "2.0"
+    let method: String
+    let params: [String: String]
+    //let id = UUID()
+}
+
+class PrinterRequestManager: ObservableObject, WebSocketDelegate {
+    func didReceive(event: Starscream.WebSocketEvent, client: Starscream.WebSocket) {
+        switch event {
+        case .connected(let headers):
+            //isConnected = true
+            print("websocket is connected: \(headers)")
+        case .disconnected(let reason, let code):
+            //isConnected = false
+            print("websocket is disconnected: \(reason) with code: \(code)")
+        case .text(let string):
+            print("Received text: \(string)")
+        case .binary(let data):
+            print("Received data: \(data.count)")
+        case .ping(_):
+            break
+        case .pong(_):
+            break
+        case .viabilityChanged(_):
+            break
+        case .reconnectSuggested(_):
+            break
+        case .cancelled:
+            //isConnected = false
+            break
+        case .error(let error):
+            print("[error] Starscream: \(error.debugDescription)")
+            //isConnected = false
+            //handleError(error)
+        }
+    }
+    
+    // REST query results
     @Published var printerObjectsQuery: PrinterObjectsQuery?
     
+    // Websocket RPC-JSON endpoints discovered via bonjour
+    @Published var nwBrowserDiscoveredItems: [NWEndpoint] = []
+    
     @Published var printerCommsOkay = false
     
+    var socket: WebSocket!
+    
+    private var socketHost, socketPort: String?
+    
+    //var nwBrowser: NWBrowser!
+    let nwBrowser = NWBrowser(for: .bonjour(type: "_moonraker._tcp", domain: "local."), using: .tcp)
+    var connection: NWConnection!
+    
     static let shared = PrinterRequestManager()
     
-    //let nwBrowser = NWBrowser(for: .bonjour(type: "_moonraker._tcp", domain: "local."), using: .tcp)
-    
     private init() {
+        // MARK: Starscream shit
+        //
+        //
+        print("init PRM..")
+        //        var request = URLRequest(url: URL(string: "http://10.0.21.39:7125/websocket")!)
+        //        request.timeoutInterval = 5
+        //        socket = WebSocket(request: request)
+        //        socket.delegate = self
+        //socket.connect()
         
+        //let data = try! JSONEncoder().encode(JsonRpcRequest(method: "printer.objects.list", params: [:]))
+        //socket.write(data: data)
+        
+        // MARK: NWBrowser shit
+        //
+        //
+        nwBrowser.browseResultsChangedHandler = { (newResults, changes) in
+            print("[update] Results changed.")
+            newResults.forEach { result in
+                print(result)
+                self.nwBrowserDiscoveredItems.append(result.endpoint)
+            }
+            //self.nwBrowserDiscoveredItems.append(newResults.description)
+        }
+        nwBrowser.stateUpdateHandler = { newState in
+            switch newState {
+            case .failed(let error):
+                print("[error] nwbrowser: \(error)")
+            case .ready:
+                print("[ready] nwbrowser")
+                if let innerEndpoint = self.connection?.currentPath?.remoteEndpoint, case .hostPort(let host, let port) = innerEndpoint {
+                    print("Connected to:", "\(host):\(port)")
+                }
+            case .setup:
+                print("[setup] nwbrowser")
+            default:
+                break
+            }
+        }
+        nwBrowser.start(queue: DispatchQueue.main)
     }
     
+    private func openWebsocket() {
+        if let host = socketHost, let port = socketPort {
+            //let fullUrlString = "http://\(socketHost):\(socketPort)/websocket"
+            var request = URLRequest(url: URL(string: "http://\(host):\(port)/websocket")!)
+            request.timeoutInterval = 5
+            socket = WebSocket(request: request)
+            socket.delegate = self
+            socket.connect()
+        }
+    }
+    
+    func resolveBonjourHost(_ endpoint: NWEndpoint) {
+        connection = NWConnection(to: endpoint, using: .tcp)
+        connection.stateUpdateHandler = { [self] state in
+            switch state {
+            case .ready:
+                if let innerEndpoint = connection.currentPath?.remoteEndpoint, case .hostPort(let host, let port) = innerEndpoint {
+                    print("Connected to \(host):\(port)")
+                    let hostString = "\(host)"
+                    let regex = try! Regex("%en0")
+                    let match = hostString.firstMatch(of: regex)
+                    let sanitizedHost = hostString.replacingOccurrences(of: match!.0, with: "")
+                    
+                    print("[sanitized] Resolved \(sanitizedHost):\(port)")
+                    socketHost = sanitizedHost
+                    socketPort = "\(port)"
+                    connection.cancel()
+                    self.openWebsocket()
+                }
+            default:
+                break
+            }
+        }
+        connection.start(queue: .global())
+        //connection.cancel()
+        
+        //self.openWebsocket()
+    }
+    // NWConnection shit
+    //connection = NWConnection(
+    
     func queryPrinterStats() async {
         guard let url = URL(string: "http://10.0.21.39/printer/objects/query?extruder&virtual_sdcard&print_stats&heater_bed") else {
             fatalError("Missing URL")