Add export function

TempTrack.xcodeproj/project.pbxproj

@@ -47,6 +47,8 @@
 		E2E69B622A4D7C3100C6035E /* BluetoothScanner.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2E69B612A4D7C3100C6035E /* BluetoothScanner.swift */; };
 		E2E69B662A4DA48B00C6035E /* BluetoothDevice.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2E69B652A4DA48B00C6035E /* BluetoothDevice.swift */; };
 		E2E69B682A529FA800C6035E /* TransferHandler.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2E69B672A529FA800C6035E /* TransferHandler.swift */; };
+		E2FD1D6B2D4CE64300B48627 /* ZIPFoundation in Frameworks */ = {isa = PBXBuildFile; productRef = E2FD1D6A2D4CE64300B48627 /* ZIPFoundation */; };
+		E2FD1D6F2D4CE83700B48627 /* ExportSheet.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2FD1D6E2D4CE83700B48627 /* ExportSheet.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -90,6 +92,7 @@
 		E2E69B612A4D7C3100C6035E /* BluetoothScanner.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BluetoothScanner.swift; sourceTree = "<group>"; };
 		E2E69B652A4DA48B00C6035E /* BluetoothDevice.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BluetoothDevice.swift; sourceTree = "<group>"; };
 		E2E69B672A529FA800C6035E /* TransferHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TransferHandler.swift; sourceTree = "<group>"; };
+		E2FD1D6E2D4CE83700B48627 /* ExportSheet.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ExportSheet.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -99,6 +102,7 @@
 			files = (
 				88404DD02A2E718B00D30244 /* BinaryCodable in Frameworks */,
 				88CDE0662A25D08F00114294 /* SFSafeSymbols in Frameworks */,
+				E2FD1D6B2D4CE64300B48627 /* ZIPFoundation in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -191,6 +195,7 @@
 				E2A553FE2A3A1024005204C3 /* DayView.swift */,
 				E2A554042A4ADA93005204C3 /* TransferView.swift */,
 				E2E69B5F2A4CD48F00C6035E /* IconAndTextView.swift */,
+				E2FD1D6E2D4CE83700B48627 /* ExportSheet.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -242,6 +247,7 @@
 			packageProductDependencies = (
 				88CDE0652A25D08F00114294 /* SFSafeSymbols */,
 				88404DCF2A2E718B00D30244 /* BinaryCodable */,
+				E2FD1D6A2D4CE64300B48627 /* ZIPFoundation */,
 			);
 			productName = TempTrack;
 			productReference = 88CDE04B2A2508E900114294 /* TempTrack.app */;
@@ -255,7 +261,7 @@
 			attributes = {
 				BuildIndependentTargetsInParallel = 1;
 				LastSwiftUpdateCheck = 1430;
-				LastUpgradeCheck = 1430;
+				LastUpgradeCheck = 1620;
 				TargetAttributes = {
 					88CDE04A2A2508E800114294 = {
 						CreatedOnToolsVersion = 14.3;
@@ -274,6 +280,7 @@
 			packageReferences = (
 				88CDE0642A25D08F00114294 /* XCRemoteSwiftPackageReference "SFSafeSymbols" */,
 				88404DCE2A2E718B00D30244 /* XCRemoteSwiftPackageReference "BinaryCodable" */,
+				E2FD1D692D4CE64300B48627 /* XCRemoteSwiftPackageReference "ZIPFoundation" */,
 			);
 			productRefGroup = 88CDE04C2A2508E900114294 /* Products */;
 			projectDirPath = "";
@@ -316,6 +323,7 @@
 				88CDE0682A2698B400114294 /* PersistentStorage.swift in Sources */,
 				88404DE92A31F7D500D30244 /* Data+Extensions.swift in Sources */,
 				88404DE52A31F23E00D30244 /* UInt16+Extensions.swift in Sources */,
+				E2FD1D6F2D4CE83700B48627 /* ExportSheet.swift in Sources */,
 				88404DD42A2F0DB100D30244 /* Date+Extensions.swift in Sources */,
 				88CDE0762A28AF0900114294 /* TemperatureValue.swift in Sources */,
 				E2E69B622A4D7C3100C6035E /* BluetoothScanner.swift in Sources */,
@@ -347,6 +355,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
@@ -379,6 +388,7 @@
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -407,6 +417,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
@@ -439,6 +450,7 @@
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -559,6 +571,14 @@
 				minimumVersion = 4.0.0;
 			};
 		};
+		E2FD1D692D4CE64300B48627 /* XCRemoteSwiftPackageReference "ZIPFoundation" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/weichsel/ZIPFoundation.git";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 0.9.19;
+			};
+		};
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
@@ -572,6 +592,11 @@
 			package = 88CDE0642A25D08F00114294 /* XCRemoteSwiftPackageReference "SFSafeSymbols" */;
 			productName = SFSafeSymbols;
 		};
+		E2FD1D6A2D4CE64300B48627 /* ZIPFoundation */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = E2FD1D692D4CE64300B48627 /* XCRemoteSwiftPackageReference "ZIPFoundation" */;
+			productName = ZIPFoundation;
+		};
 /* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 88CDE0432A2508E800114294 /* Project object */;

TempTrack.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,4 +1,5 @@
 {
+  "originHash" : "4621142a3796c58656af35df5ada2f08fe05daffacc1a501de8eebaaafda9339",
   "pins" : [
     {
       "identity" : "binarycodable",
@@ -17,7 +18,16 @@
         "revision" : "7cca2d60925876b5953a2cf7341cd80fbeac983c",
         "version" : "4.1.1"
       }
+    },
+    {
+      "identity" : "zipfoundation",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/weichsel/ZIPFoundation.git",
+      "state" : {
+        "revision" : "02b6abe5f6eef7e3cbd5f247c5cc24e246efcfe0",
+        "version" : "0.9.19"
+      }
     }
   ],
-  "version" : 2
+  "version" : 3
 }

TempTrack/Connection/BluetoothDevice.swift

@@ -8,6 +8,8 @@ protocol BluetoothDeviceDelegate: AnyObject {
 
 actor BluetoothDevice: NSObject, ObservableObject {
 
+    private let storage: PersistentStorage!
+
     let peripheral: CBPeripheral!
 
     private let characteristic: CBCharacteristic!
@@ -24,9 +26,10 @@ actor BluetoothDevice: NSObject, ObservableObject {
         self.delegate = delegate
     }
 
-    init(peripheral: CBPeripheral, characteristic: CBCharacteristic) {
+    init(storage: PersistentStorage, peripheral: CBPeripheral, characteristic: CBCharacteristic) {
         self.peripheral = peripheral
         self.characteristic = characteristic
+        self.storage = storage
         super.init()
         
         peripheral.delegate = self
@@ -35,6 +38,7 @@ actor BluetoothDevice: NSObject, ObservableObject {
     override init() {
         self.peripheral = nil
         self.characteristic = nil
+        self.storage = nil
         super.init()
     }
 
@@ -46,7 +50,6 @@ actor BluetoothDevice: NSObject, ObservableObject {
         }
         lastDeviceInfo = info
         delegate?.bluetoothDevice(didUpdate: info)
-        #warning("Don't use global variable")
         storage.save(deviceInfo: info)
     }
 

TempTrack/Connection/BluetoothScanner.swift

@@ -15,6 +15,8 @@ final class BluetoothScanner: NSObject, CBCentralManagerDelegate, ObservableObje
 
     private let characteristicUUID = CBUUID(string: "22071991-cccc-cccc-cccc-000000000002")
 
+    let storage: PersistentStorage!
+
     private var manager: CBCentralManager! = nil
 
     @Published
@@ -71,7 +73,8 @@ final class BluetoothScanner: NSObject, CBCentralManagerDelegate, ObservableObje
         }
     }
 
-    override init() {
+    init(storage: PersistentStorage) {
+        self.storage = storage
         connectionState = .noDeviceFound
         super.init()
         self.manager = CBCentralManager(delegate: self, queue: nil)
@@ -200,7 +203,7 @@ extension BluetoothScanner: CBPeripheralDelegate {
             return
         }
 
-        configuredDevice = .init(peripheral: peripheral, characteristic: desiredCharacteristic)
+        configuredDevice = .init(storage: storage, peripheral: peripheral, characteristic: desiredCharacteristic)
         Task {
             await configuredDevice?.set(delegate: self)
         }

TempTrack/ContentView.swift

@@ -271,7 +271,7 @@ struct ContentView: View {
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
         let storage = PersistentStorage(lastMeasurements: TemperatureMeasurement.mockData)
-        ContentView(scanner: .init())
+        ContentView(scanner: .init(storage: storage))
             .environmentObject(storage)
     }
 }

TempTrack/Storage/PersistentStorage.swift

@@ -2,6 +2,7 @@ import Foundation
 import Combine
 import BinaryCodable
 import SwiftUI
+import ZIPFoundation
 
 final class PersistentStorage: ObservableObject {
 
@@ -353,6 +354,34 @@ final class PersistentStorage: ObservableObject {
         defer { updateTransferCount() }
         return save(data: data, date: date, in: "transfers")
     }
+
+    // MARK: Export
+
+    private var zipArchive: URL {
+        FileManager.default.temporaryDirectory.appendingPathComponent("data.zip")
+    }
+
+    func createZip() throws -> URL {
+        // Define the destination zip file path
+        let archive = zipArchive
+
+        // Create the zip file
+        try FileManager.default.zipItem(
+            at: PersistentStorage.documentDirectory,
+            to: archive,
+            shouldKeepParent: false,
+            compressionMethod: .deflate)
+        return archive
+    }
+
+    func removeZipArchive() throws {
+        let archive = zipArchive
+        // Remove existing zip file if it exists
+        if FileManager.default.fileExists(atPath: archive.path) {
+            print("Removing archive file")
+            try FileManager.default.removeItem(at: archive)
+        }
+    }
 }
 
 private extension Array where Element == TemperatureMeasurement {

TempTrack/TempTrackApp.swift

@@ -1,14 +1,25 @@
 import SwiftUI
 
-let storage = PersistentStorage()
 
-private let scanner = BluetoothScanner()
-
-private let transfer = TransferHandler()
 
 @main
 struct TempTrackApp: App {
-    
+
+    @StateObject
+    private var storage: PersistentStorage
+
+    @StateObject
+    private var scanner: BluetoothScanner
+
+    @StateObject
+    private var transfer = TransferHandler()
+
+    init() {
+        let storage = PersistentStorage()
+        self._scanner = .init(wrappedValue: .init(storage: storage))
+        self._storage = .init(wrappedValue: storage)
+    }
+
     var body: some Scene {
         WindowGroup {
             ContentView(scanner: scanner)

TempTrack/Views/ExportSheet.swift

@@ -0,0 +1,81 @@
+import SwiftUI
+
+struct ExportSheet: View {
+
+    @Binding var isPresented: Bool
+
+    @State
+    private var isCreatingArchive = false
+
+    @State var url: URL?
+
+    @State var error: String?
+
+    @EnvironmentObject
+    private var storage: PersistentStorage
+
+    var body: some View {
+        VStack {
+            Text("Export")
+                .font(.title)
+            Text("Create a zip file of all stored data and share it.")
+            if isCreatingArchive {
+                ProgressView()
+                Text("Creating archive...")
+            }
+            if let error {
+                Text(error)
+                    .foregroundStyle(.red)
+            }
+            Spacer()
+            Button("Create archive", action: createArchive)
+                .disabled(isCreatingArchive)
+                .padding()
+            if let url {
+                ShareLink(item: url) {
+                    Label("Share archive", systemImage: "square.and.arrow.up")
+                }
+                .padding()
+                Button("Delete archive", action: deleteArchive)
+                    .padding()
+            }
+        }
+        .padding()
+    }
+
+    private func createArchive() {
+        guard !isCreatingArchive else {
+            return
+        }
+        isCreatingArchive = true
+        DispatchQueue.main.async {
+            do {
+                let url = try storage.createZip()
+                DispatchQueue.main.async {
+                    self.url = url
+                    self.error = nil
+                    self.isCreatingArchive = false
+                }
+            } catch {
+                DispatchQueue.main.async {
+                    self.error = "Failed to create archive: \(error.localizedDescription)"
+                    self.isCreatingArchive = false
+                }
+            }
+        }
+    }
+
+    private func deleteArchive() {
+        do {
+            try storage.removeZipArchive()
+            self.error = nil
+            self.url = nil
+        } catch {
+            self.error = "Failed to delete archive: \(error.localizedDescription)"
+        }
+    }
+}
+
+#Preview {
+    ExportSheet(isPresented: .constant(true))
+}

TempTrack/Views/HistoryList.swift

@@ -1,10 +1,14 @@
 import SwiftUI
+import SFSafeSymbols
 
 struct HistoryList: View {
     
     @EnvironmentObject
     var storage: PersistentStorage
-    
+
+    @State
+    private var showExportSheet = false
+
     var body: some View {
         NavigationView {
             List(storage.dailyMeasurementCounts) { day in
@@ -25,6 +29,16 @@ struct HistoryList: View {
             }
             .navigationTitle("History")
             .navigationBarTitleDisplayMode(.large)
+            .toolbar {
+                ToolbarItem {
+                    Button(action: { showExportSheet = true }) {
+                        Label("Export", systemSymbol: .arrowUpDoc)
+                    }
+                }
+            }
+            .sheet(isPresented: $showExportSheet) {
+                ExportSheet(isPresented: $showExportSheet)
+            }
         }
     }