Add watchOS support

2025-04-04 18:23:12 +02:00
parent 96b0466deb
commit 384ee97cb7
20 changed files with 857 additions and 48 deletions
@@ -2,6 +2,6 @@

 # meterios

-*Pick your poison*, now on iOS.
+*Pick your poison*, now on iOS & watchOS.


@@ -0,0 +1,18 @@
+//
+//  SalutManager.swift
+//  meterios
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+class SalutManager {
+    static let salutes: Array<String> = [
+        "Prost!", "Guten!", "Kippis!", "Cheers!", "Chin-Chin!", "Zum Wohl!", "Salut!", "לחיים",
+        "Jamas!", // thanks cocorilla
+        "Budmo!", "за здоровье!", "Sláinte!", "乾杯", "Noroc!", // thanks ChaosAyumi
+    ]
+    
+    static func getSalute() -> String {
+        return salutes[Int.random(in: 0..<salutes.count)]
+    }
+}
@@ -0,0 +1,147 @@
+//
+//  WCManager.swift
+//  meterios
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+import WatchConnectivity
+
+enum WCMeteriosMessageTypes: String {
+    case ConnectionInfo
+    case DrinkList
+    case BookDrink
+}
+
+class WCManager: NSObject, WCSessionDelegate {
+    @AppStorage("meteHostAddr") private var meteHostAddr = ""
+    @AppStorage("meteUserID") private var meteUserID = -1
+    
+    private let session: WCSession = WCSession.default
+    
+    override init() {
+        super.init()
+        
+        if (WCSession.isSupported()) {
+            session.delegate = self
+            session.activate()
+            log("Activated session")
+        }
+    }
+    
+    // Functions required by WCSessionDelegate protocol, but not of interest for Meterios
+#if os(iOS)
+    func sessionDidBecomeInactive(_ session: WCSession) {}
+    func sessionDidDeactivate(_ session: WCSession) {}
+#endif // os(iOS)
+    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: (any Error)?) {}
+    
+    // session(...) gets called for every incoming message through the WatchConnectivity channel
+    // As Meterios currently only needs messages from watch to device and responses back to the watch, this function currently only implements device-related responses.
+    func session(_ session: WCSession, didReceiveMessage message: [String : Any], replyHandler: @escaping ([String : Any]) -> Void) {
+        // Check for the different possible message types
+        if message.contains(where: { $0.key == "request" && $0.value as! String == WCMeteriosMessageTypes.ConnectionInfo.rawValue }) {
+            // Request for ConnectionInfo
+            replyHandler([
+                "userID": meteUserID,
+                "hostAddr": meteHostAddr
+            ])
+        } else if message.contains(where: { $0.key == "request" && $0.value as! String == WCMeteriosMessageTypes.DrinkList.rawValue }) {
+            // Request for a list of available drinks
+            Task {
+                let drinks = try await BackendConnector().GetDrinks(baseAddr: meteHostAddr)
+                let availableDrinks = drinks.filter({ $0.active })
+                
+                // Create a plist-compatible variant of the Drink object containing the required information
+                var drinkArray: Array<String> = []
+                for d in availableDrinks {
+                    drinkArray.append(
+                        try! JSONEncoder().encode(d).base64EncodedString()
+                    )
+                }
+                
+                replyHandler([
+                    "drinks": drinkArray
+                ])
+            }
+        } else if message.contains(where: { $0.key == "request" && $0.value as! String == WCMeteriosMessageTypes.BookDrink.rawValue }) {
+            // Book the given drink at the backend
+            Task {
+                do {
+                    // Book
+                    let drinkID = message["drinkID"] as! Int
+                    try await BackendConnector().BookDrink(baseAddr: meteHostAddr, userID: meteUserID, drinkID: drinkID)
+                    replyHandler([
+                        "salut": SalutManager.getSalute()
+                    ])
+                } catch {
+                    // Error booking against the backend
+                    replyHandler([
+                        "error": error,
+                        "salut": ""
+                    ])
+                }
+            }
+        } else {
+            log("Error: received unknown request. \(message)")
+        }
+    }
+    
+    // requestConnectionInfo requests User ID and Host address from the paired device
+    func requestConnectionInfo(replyHandler: @escaping (Int, String) -> Void, errorHandler: @escaping ((any Error)?) -> Void) {
+        session.sendMessage([
+            "request": WCMeteriosMessageTypes.ConnectionInfo.rawValue
+        ], replyHandler: { reply in
+            replyHandler(reply["userID"] as! Int, reply["hostAddr"] as! String)
+        }, errorHandler: { error in
+            errorHandler(error)
+        })
+    }
+    
+    // requestDrinksList requests the list of drinks available at the backend from the paired device
+    func requestDrinksList(replyHandler: @escaping (Array<Drink>) -> Void, errorHandler: @escaping ((any Error)?) -> Void) {
+        session.sendMessage([
+            "request": WCMeteriosMessageTypes.DrinkList.rawValue
+        ], replyHandler: { reply in
+            let drinks = reply["drinks"] as! Array<String>
+            
+            // Create Drink objects from response
+            var drinkArray: Array<Drink> = []
+            for d in drinks {
+                let jsonDecoded = Data(base64Encoded: d)
+                let drink = try! JSONDecoder().decode(Drink.self, from: jsonDecoded!)
+                drinkArray.append(drink)
+            }
+            
+            // enjoy your drinks, replyHandler!
+            replyHandler(drinkArray)
+        }, errorHandler: { error in
+            errorHandler(error)
+        })
+    }
+    
+    // bookDrink books the drink given by drinkID
+    func bookDrink(drinkID: Int, replyHandler: @escaping (String) -> Void, errorHandler: @escaping ((any Error)?) -> Void) {
+        session.sendMessage([
+            "request": WCMeteriosMessageTypes.BookDrink.rawValue,
+            "drinkID": drinkID,
+        ], replyHandler: { reply in
+            let salut = reply["salut"] as! String
+            replyHandler(salut)
+        }, errorHandler: { error in
+            errorHandler(error)
+        })
+    }
+    
+    private func log(_ line: String) {
+#if os(iOS)
+        let prefix = "[WCM@iOS]"
+#elseif os(watchOS)
+        let prefix = "[WCM@wOS]"
+#else
+        let prefix = "[WCM@?OS]"
+#endif // os(...)
+        print("\(prefix) \(line)")
+    }
+}
@@ -0,0 +1,52 @@
+//
+//  Drink.swift
+//  meterios
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+
+struct Drink: Identifiable, Encodable, Decodable {
+    public var id: Int
+    public var name: String
+    public var logoURL: String
+    private var price: String
+    private var bottle_size: String
+    public var caffeine: Int
+    public var active: Bool
+    
+    // KeyMap is an enum covering the field names as used by SpaceMarket API
+    private enum KeyMap : String, CodingKey { case id, name, bottle_size, caffeine, price, active, logo_url }
+
+    // Init function to be used with JSONDecoder using SpaceMarket API's strange types
+    init(from decoder : Decoder) throws {
+        let container = try decoder.container(keyedBy: KeyMap.self)
+        self.id = try container.decode(Int.self, forKey: .id)
+        self.name = try container.decode(String.self, forKey: .name)
+        self.bottle_size = (try? container.decode(String.self, forKey: .bottle_size)) ?? ""
+        self.caffeine = (try? container.decode(Int.self, forKey: .caffeine)) ?? 0
+        self.price = (try? container.decode(String.self, forKey: .price)) ?? ""
+        self.active = (try? container.decode(Bool.self, forKey: .active)) ?? false
+        self.logoURL = (try? container.decode(String.self, forKey: .logo_url)) ?? ""
+    }
+    
+    // Init function, as straight-forward as it gets
+    init(id: Int, name: String, logoURL: String = "", price: String = "", bottle_size: String = "", caffeine: Int = 0, active: Bool = true) {
+        self.id = id
+        self.name = name
+        self.logoURL = logoURL
+        self.price = price
+        self.bottle_size = bottle_size
+        self.caffeine = caffeine
+        self.active = active
+    }
+    
+    func GetPrice() -> Float {
+        return Float(self.price) ?? 9999.99
+    }
+    
+    func GetBottleSize() -> Float {
+        return Float(self.bottle_size) ?? 9999.99
+    }
+}
@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,14 @@
+{
+  "images" : [
+    {
+      "filename" : "mete-new.jpg",
+      "idiom" : "universal",
+      "platform" : "watchos",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
@@ -0,0 +1,19 @@
+//
+//  meteriosWatchApp.swift
+//  meterios-watch
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+
+@main
+struct meteriosWatchApp: App {
+    private var wcMgr = WCManager()
+    
+    var body: some Scene {
+        WindowGroup {
+            ContentView(wcMgr)
+        }
+    }
+}
@@ -0,0 +1,81 @@
+//
+//  ContentView.swift
+//  meterios-watch
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+
+struct ContentView: View {
+    private var wcMgr: WCManager
+    
+    @State private var drinks: Array<Drink> = []
+    
+    @State private var showUpdateError: Bool = false
+    @State private var updateError: String = ""
+    @State private var updateErrorCount: Int = 0
+    
+    init(_ wcMgr: WCManager) {
+        self.wcMgr = wcMgr
+    }
+    
+    // update performs a full update from the paired device, covering connection info (user ID and backend address) and list of drinks
+    func update() {
+        if updateErrorCount >= 3 {
+            showUpdateError = true
+            updateErrorCount = 0
+            return
+        }
+        
+        // Update drinks list from paired device
+        wcMgr.requestDrinksList(
+            replyHandler: { drinks in
+                // Drinks received from backend
+                self.drinks = drinks
+                showUpdateError = false
+            }, errorHandler: { error in
+                // Error receiving drinks
+                print("Error receiving drinks: \(error)")
+                updateError = error?.localizedDescription ?? "Unknown error"
+                updateErrorCount += 1
+                update()
+            }
+        )
+    }
+    
+    var body: some View {
+        ZStack {
+            if drinks.count > 0 {
+                NavigationView {
+                    List() {
+                        // Drinks
+                        Section("Drinks") {
+                            ForEach(drinks) { drink in
+                                NavigationLink(drink.name) {
+                                    DrinkDetailView(wcMgr: wcMgr, drink: drink)
+                                }
+                            }
+                        }
+                        
+                        // Controls
+                        Section {
+                            Button("Refresh") {
+                                drinks = []
+                                update()
+                            }
+                        }
+                    }
+                }
+            } else {
+                ProgressView()
+            }
+        }
+        .onAppear(perform: update)
+        // Alert to communicate an error in communication with the paired device
+        .alert("Connection Error", isPresented: $showUpdateError) {
+            Text(updateError).tint(.red).font(.footnote)
+            Button("Retry", systemImage: "arrow.clockwise", action: update)
+        }
+    }
+}
@@ -0,0 +1,58 @@
+//
+//  DrinkDetailView.swift
+//  meterios-watch
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+
+struct DrinkDetailView: View {
+    private var wcMgr: WCManager
+    private var drink: Drink
+    
+    @State var shouldShowTransactionSheet = false
+    
+    @Environment(\.dismiss) private var dismiss
+        
+    init(wcMgr: WCManager, drink: Drink) {
+        self.wcMgr = wcMgr
+        self.drink = drink
+    }
+    
+    var body: some View {
+        VStack {
+            // Title
+            Text(drink.name).font(.title)
+            
+            // Basic info
+            HStack {
+                VStack {
+                    Text(String(format: "%img", drink.caffeine)).fontWeight(.bold)
+                    Text("Caffeine").fontWeight(Font.Weight.thin)
+                }
+                Divider()
+                VStack {
+                    Text(String(format: "%.2f€", drink.GetPrice())).fontWeight(.bold)
+                    Text("Price").fontWeight(Font.Weight.thin)
+                }
+            }
+            
+            // Pick button
+            Button(action: {
+                // Open the transaction sheet
+                shouldShowTransactionSheet = true
+            }) {
+                Text("Poison picked!")
+            }.tint(.green)
+        }
+        
+        // Transaction sheet
+        .sheet(isPresented: $shouldShowTransactionSheet) {
+            // Sheet dismissed - dismiss detail perspective as well.
+            dismiss()
+        } content: {
+            TransactionView(wcMgr: wcMgr, drinkID: drink.id).interactiveDismissDisabled()
+        }
+    }
+}
@@ -0,0 +1,80 @@
+//
+//  TransactionView.swift
+//  meterios-watch
+//
+//  (c) 2025 Martin "maride" Dessauer
+//
+
+import SwiftUI
+
+struct TransactionView: View {
+    private var wcMgr: WCManager
+    private var drinkID: Int
+    
+    @State var statusLine = "Booking..."
+    
+    @Environment(\.dismiss) private var dismiss
+    
+    // If the backend reacts too fast (we hate that, huh?), the user is confused because of the short life of this view
+    // closeTimer takes care of that confusion and gives the user the good old 56k modem feeling.
+    @State var closeTimer: Timer?
+    @State var closeTimerReady: Bool = false
+    @State var backendBookTimer: Timer?
+    @State var backendTimerReady: Bool = false
+    
+    init(wcMgr: WCManager, drinkID: Int) {
+        self.wcMgr = wcMgr
+        self.drinkID = drinkID
+    }
+    
+    // maybeDismiss dismisses this view after the backend call(s) finished AND the timer(s) ran out
+    func maybeDismiss() {
+        if closeTimerReady && backendTimerReady {
+            dismiss()
+        }
+    }
+    
+    // Books the drinks handed over to this view
+    func book() {
+        // Try to book the drink(s)
+        wcMgr.bookDrink(drinkID: drinkID) { salut in
+            statusLine = salut
+            backendTimerReady = true
+            maybeDismiss()
+        } errorHandler: { error in
+            statusLine = error!.localizedDescription
+            print("Error booking drinks: \(error)")
+        }
+    }
+    
+    var body: some View {
+        // Green checkmark or progress indicator
+        VStack {
+            if backendTimerReady {
+                Image(systemName: "checkmark.circle.fill")
+                    .foregroundStyle(.green)
+            } else {
+                ProgressView()
+            }
+            
+            // Status line, on success with salute
+            Text(statusLine)
+                .font(.title)
+
+            // Let watch vibrate on success
+            if #available(watchOS 10.0, *) {
+                Text("")
+                    .opacity(0)
+                    .sensoryFeedback(.success, trigger: backendTimerReady)
+            }
+        }.onAppear(perform: {
+            closeTimer = Timer.scheduledTimer(withTimeInterval: 1.5, repeats: false) { timer in
+                closeTimerReady = true
+                maybeDismiss()
+            }
+            backendBookTimer = Timer.scheduledTimer(withTimeInterval: 0.5, repeats: false) { timer in
+                book()
+            }
+        })
+    }
+}
@@ -6,16 +6,81 @@
 	objectVersion = 77;
 	objects = {

+/* Begin PBXBuildFile section */
+		A7FA4CB72D9E8FF5005ACDBB /* meterios-watch.app in Embed Watch Content */ = {isa = PBXBuildFile; fileRef = A7FA4CAA2D9E8FF1005ACDBB /* meterios-watch.app */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		A7FA4CB52D9E8FF5005ACDBB /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = A7F97A862D8DD542004EF4ED /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = A7FA4CA92D9E8FF1005ACDBB;
+			remoteInfo = "meterios-watch Watch App";
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		A7C3C98C2D9D67EB00731E27 /* Embed Watch Content */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "$(CONTENTS_FOLDER_PATH)/Watch";
+			dstSubfolderSpec = 16;
+			files = (
+				A7FA4CB72D9E8FF5005ACDBB /* meterios-watch.app in Embed Watch Content */,
+			);
+			name = "Embed Watch Content";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
 /* Begin PBXFileReference section */
 		A7F97A8E2D8DD542004EF4ED /* meterios.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = meterios.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		A7FA4CAA2D9E8FF1005ACDBB /* meterios-watch.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "meterios-watch.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 /* End PBXFileReference section */

+/* Begin PBXFileSystemSynchronizedBuildFileExceptionSet section */
+		A7FA4CBE2D9E90B0005ACDBB /* Exceptions for "meterios" folder in "meterios-watch" target */ = {
+			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
+			membershipExceptions = (
+				BackendConnector.swift,
+			);
+			target = A7FA4CA92D9E8FF1005ACDBB /* meterios-watch */;
+		};
+		A7FA4CCB2D9E9564005ACDBB /* Exceptions for "common" folder in "meterios-watch" target */ = {
+			isa = PBXFileSystemSynchronizedBuildFileExceptionSet;
+			membershipExceptions = (
+				SalutManager.swift,
+				types/Drink.swift,
+				types/User.swift,
+				WCManager.swift,
+			);
+			target = A7FA4CA92D9E8FF1005ACDBB /* meterios-watch */;
+		};
+/* End PBXFileSystemSynchronizedBuildFileExceptionSet section */
+
 /* Begin PBXFileSystemSynchronizedRootGroup section */
 		A7F97A902D8DD542004EF4ED /* meterios */ = {
 			isa = PBXFileSystemSynchronizedRootGroup;
+			exceptions = (
+				A7FA4CBE2D9E90B0005ACDBB /* Exceptions for "meterios" folder in "meterios-watch" target */,
+			);
 			path = meterios;
 			sourceTree = "<group>";
 		};
+		A7FA4CAB2D9E8FF1005ACDBB /* meterios-watch */ = {
+			isa = PBXFileSystemSynchronizedRootGroup;
+			path = "meterios-watch";
+			sourceTree = "<group>";
+		};
+		A7FA4CC62D9E94BD005ACDBB /* common */ = {
+			isa = PBXFileSystemSynchronizedRootGroup;
+			exceptions = (
+				A7FA4CCB2D9E9564005ACDBB /* Exceptions for "common" folder in "meterios-watch" target */,
+			);
+			path = common;
+			sourceTree = "<group>";
+		};
 /* End PBXFileSystemSynchronizedRootGroup section */

 /* Begin PBXFrameworksBuildPhase section */
@@ -26,13 +91,22 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		A7FA4CA72D9E8FF1005ACDBB /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXFrameworksBuildPhase section */

 /* Begin PBXGroup section */
 		A7F97A852D8DD542004EF4ED = {
 			isa = PBXGroup;
 			children = (
+				A7FA4CC62D9E94BD005ACDBB /* common */,
 				A7F97A902D8DD542004EF4ED /* meterios */,
+				A7FA4CAB2D9E8FF1005ACDBB /* meterios-watch */,
 				A7F97A8F2D8DD542004EF4ED /* Products */,
 			);
 			sourceTree = "<group>";
@@ -41,6 +115,7 @@
 			isa = PBXGroup;
 			children = (
 				A7F97A8E2D8DD542004EF4ED /* meterios.app */,
+				A7FA4CAA2D9E8FF1005ACDBB /* meterios-watch.app */,
 			);
 			name = Products;
 			sourceTree = "<group>";
@@ -55,13 +130,16 @@
 				A7F97A8A2D8DD542004EF4ED /* Sources */,
 				A7F97A8B2D8DD542004EF4ED /* Frameworks */,
 				A7F97A8C2D8DD542004EF4ED /* Resources */,
+				A7C3C98C2D9D67EB00731E27 /* Embed Watch Content */,
 			);
 			buildRules = (
 			);
 			dependencies = (
+				A7FA4CB62D9E8FF5005ACDBB /* PBXTargetDependency */,
 			);
 			fileSystemSynchronizedGroups = (
 				A7F97A902D8DD542004EF4ED /* meterios */,
+				A7FA4CC62D9E94BD005ACDBB /* common */,
 			);
 			name = meterios;
 			packageProductDependencies = (
@@ -70,6 +148,28 @@
 			productReference = A7F97A8E2D8DD542004EF4ED /* meterios.app */;
 			productType = "com.apple.product-type.application";
 		};
+		A7FA4CA92D9E8FF1005ACDBB /* meterios-watch */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = A7FA4CB82D9E8FF5005ACDBB /* Build configuration list for PBXNativeTarget "meterios-watch" */;
+			buildPhases = (
+				A7FA4CA62D9E8FF1005ACDBB /* Sources */,
+				A7FA4CA72D9E8FF1005ACDBB /* Frameworks */,
+				A7FA4CA82D9E8FF1005ACDBB /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			fileSystemSynchronizedGroups = (
+				A7FA4CAB2D9E8FF1005ACDBB /* meterios-watch */,
+			);
+			name = "meterios-watch";
+			packageProductDependencies = (
+			);
+			productName = "meterios-watch Watch App";
+			productReference = A7FA4CAA2D9E8FF1005ACDBB /* meterios-watch.app */;
+			productType = "com.apple.product-type.application";
+		};
 /* End PBXNativeTarget section */

 /* Begin PBXProject section */
@@ -83,6 +183,9 @@
 					A7F97A8D2D8DD542004EF4ED = {
 						CreatedOnToolsVersion = 16.2;
 					};
+					A7FA4CA92D9E8FF1005ACDBB = {
+						CreatedOnToolsVersion = 16.2;
+					};
 				};
 			};
 			buildConfigurationList = A7F97A892D8DD542004EF4ED /* Build configuration list for PBXProject "meterios" */;
@@ -100,6 +203,7 @@
 			projectRoot = "";
 			targets = (
 				A7F97A8D2D8DD542004EF4ED /* meterios */,
+				A7FA4CA92D9E8FF1005ACDBB /* meterios-watch */,
 			);
 		};
 /* End PBXProject section */
@@ -112,6 +216,13 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		A7FA4CA82D9E8FF1005ACDBB /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXResourcesBuildPhase section */

 /* Begin PBXSourcesBuildPhase section */
@@ -122,8 +233,23 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
+		A7FA4CA62D9E8FF1005ACDBB /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
 /* End PBXSourcesBuildPhase section */

+/* Begin PBXTargetDependency section */
+		A7FA4CB62D9E8FF5005ACDBB /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = A7FA4CA92D9E8FF1005ACDBB /* meterios-watch */;
+			targetProxy = A7FA4CB52D9E8FF5005ACDBB /* PBXContainerItemProxy */;
+		};
+/* End PBXTargetDependency section */
+
 /* Begin XCBuildConfiguration section */
 		A7F97A9A2D8DD54B004EF4ED /* Debug */ = {
 			isa = XCBuildConfiguration;
@@ -272,7 +398,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.0;
+				MARKETING_VERSION = 1.1;
 				PRODUCT_BUNDLE_IDENTIFIER = space.chaosdorf.meterios;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
@@ -309,7 +435,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				MARKETING_VERSION = 1.0;
+				MARKETING_VERSION = 1.1;
 				PRODUCT_BUNDLE_IDENTIFIER = space.chaosdorf.meterios;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SUPPORTED_PLATFORMS = "iphoneos iphonesimulator";
@@ -322,6 +448,64 @@
 			};
 			name = Release;
 		};
+		A7FA4CB92D9E8FF5005ACDBB /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = 3RNVF52786;
+				ENABLE_PREVIEWS = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_CFBundleDisplayName = Meterios;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
+				INFOPLIST_KEY_WKCompanionAppBundleIdentifier = space.chaosdorf.meterios;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				MARKETING_VERSION = 1.1;
+				PRODUCT_BUNDLE_IDENTIFIER = space.chaosdorf.meterios.watchkitapp;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = watchos;
+				SKIP_INSTALL = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = 4;
+				WATCHOS_DEPLOYMENT_TARGET = 8.7;
+			};
+			name = Debug;
+		};
+		A7FA4CBA2D9E8FF5005ACDBB /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = 3RNVF52786;
+				ENABLE_PREVIEWS = YES;
+				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_CFBundleDisplayName = Meterios;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown";
+				INFOPLIST_KEY_WKCompanionAppBundleIdentifier = space.chaosdorf.meterios;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				MARKETING_VERSION = 1.1;
+				PRODUCT_BUNDLE_IDENTIFIER = space.chaosdorf.meterios.watchkitapp;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = watchos;
+				SKIP_INSTALL = YES;
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = 4;
+				WATCHOS_DEPLOYMENT_TARGET = 8.7;
+			};
+			name = Release;
+		};
 /* End XCBuildConfiguration section */

 /* Begin XCConfigurationList section */
@@ -343,6 +527,15 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
+		A7FA4CB82D9E8FF5005ACDBB /* Build configuration list for PBXNativeTarget "meterios-watch" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				A7FA4CB92D9E8FF5005ACDBB /* Debug */,
+				A7FA4CBA2D9E8FF5005ACDBB /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
 /* End XCConfigurationList section */
 	};
 	rootObject = A7F97A862D8DD542004EF4ED /* Project object */;
@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1620"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A7FA4CA92D9E8FF1005ACDBB"
+               BuildableName = "meterios-watch.app"
+               BlueprintName = "meterios-watch"
+               ReferencedContainer = "container:meterios.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A7F97A8D2D8DD542004EF4ED"
+               BuildableName = "meterios.app"
+               BlueprintName = "meterios"
+               ReferencedContainer = "container:meterios.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "A7FA4CA92D9E8FF1005ACDBB"
+            BuildableName = "meterios-watch.app"
+            BlueprintName = "meterios-watch"
+            ReferencedContainer = "container:meterios.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "A7FA4CA92D9E8FF1005ACDBB"
+            BuildableName = "meterios-watch.app"
+            BlueprintName = "meterios-watch"
+            ReferencedContainer = "container:meterios.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1620"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "A7F97A8D2D8DD542004EF4ED"
+               BuildableName = "meterios.app"
+               BlueprintName = "meterios"
+               ReferencedContainer = "container:meterios.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "A7F97A8D2D8DD542004EF4ED"
+            BuildableName = "meterios.app"
+            BlueprintName = "meterios"
+            ReferencedContainer = "container:meterios.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "A7F97A8D2D8DD542004EF4ED"
+            BuildableName = "meterios.app"
+            BlueprintName = "meterios"
+            ReferencedContainer = "container:meterios.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
@@ -12,6 +12,8 @@ struct meteriosApp: App {
    @AppStorage("meteHostAddr") private var meteHostAddr = ""
    @AppStorage("meteUserID") private var meteUserID = -1
    
+    private var wcMgr = WCManager()
+
    var body: some Scene {
        WindowGroup {
            if meteHostAddr == "" || meteUserID == -1 {
@@ -1,33 +0,0 @@
-//
-//  Drink.swift
-//  meterios
-//
-//  (c) 2025 Martin "maride" Dessauer
-//
-
-import SwiftUI
-
-struct Drink: Identifiable, Decodable {
-    var id: Int
-    var name: String
-    var logoURL: String = ""
-    var price: Float = 0.00
-    var bottle_size: Float = 0.00
-    var caffeine: Int = 0
-    var active: Bool = true
-    
-    // KeyMap is an enum covering the field names as used by SpaceMarket API
-    private enum KeyMap : String, CodingKey { case id, name, bottle_size, caffeine, price, active, logo_url }
-
-    // Init function to be used with JSONDecoder, converting from SpaceMarket API's strange types to proper types
-    init(from decoder : Decoder) throws {
-        let container = try decoder.container(keyedBy: KeyMap.self)
-        self.id = try container.decode(Int.self, forKey: .id)
-        self.name = try container.decode(String.self, forKey: .name)
-        self.bottle_size = Float(try container.decode(String.self, forKey: .bottle_size)) ?? 0.00
-        self.caffeine = (try? container.decode(Int.self, forKey: .caffeine)) ?? 0
-        self.price = Float(try container.decode(String.self, forKey: .price)) ?? 9999.99
-        self.active = (try? container.decode(Bool.self, forKey: .active)) ?? false
-        self.logoURL = (try? container.decode(String.self, forKey: .logo_url)) ?? ""
-    }
-}
@@ -65,7 +65,7 @@ struct DrinkDetail: View {
                                }.fixedSize()
                                Divider()
                                VStack {
-                                    Text(String(format: "%.2f€", drink.price)).fontWeight(.bold)
+                                    Text(String(format: "%.2f€", drink.GetPrice())).fontWeight(.bold)
                                    Text("Price").fontWeight(Font.Weight.thin)
                                }
                            }
@@ -89,7 +89,7 @@ struct DrinkDetail: View {
                HStack {
                    Text("Total sum:")
                    Spacer()
-                    Text(String(format: "%.2f€", self.drink.price * Float(self.drinkAmount))).fontWeight(.bold)
+                    Text(String(format: "%.2f€", self.drink.GetPrice() * Float(self.drinkAmount))).fontWeight(.bold)
                }
            }
            
@@ -25,15 +25,6 @@ struct TransactionView: View {
    @State var backendBookTimer: Timer?
    @State var backendTimerReady: Bool = false
    
-    let salutes: Array<String> = [
-        "Prost!", "Guten!", "Kippis!", "Cheers!", "Chin-Chin!", "Zum Wohl!", "Salut!", "לחיים",
-        "Jamas!", // thanks cocorilla
-        "Budmo!", "за здоровье!", "Sláinte!", "乾杯", "Noroc!", // thanks ChaosAyumi
-    ]
-    func getSalute() -> String {
-        return salutes[Int.random(in: 0..<salutes.count)]
-    }
-    
    init(drinkID: Int, drinkAmount: Int) {
        self.drinkID = drinkID
        self.drinkAmount = drinkAmount
@@ -54,7 +45,7 @@ struct TransactionView: View {
                for _ in 1...drinkAmount {
                    try await BackendConnector().BookDrink(baseAddr: meteHostAddr, userID: meteUserID, drinkID: drinkID)
                }
-                statusLine = getSalute()
+                statusLine = SalutManager.getSalute()
                backendTimerReady = true
                maybeDismiss()
            } catch {