Show all points for day

TempTrack.xcodeproj/project.pbxproj

@@ -41,6 +41,7 @@
 		E2A553F92A399F58005204C3 /* Log.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2A553F82A399F58005204C3 /* Log.swift */; };
 		E2A553FB2A39C82D005204C3 /* LogView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2A553FA2A39C82D005204C3 /* LogView.swift */; };
 		E2A553FD2A39C86B005204C3 /* LogEntry.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2A553FC2A39C86B005204C3 /* LogEntry.swift */; };
+		E2A553FF2A3A1024005204C3 /* DayView.swift in Sources */ = {isa = PBXBuildFile; fileRef = E2A553FE2A3A1024005204C3 /* DayView.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -77,6 +78,7 @@
 		E2A553F82A399F58005204C3 /* Log.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Log.swift; sourceTree = "<group>"; };
 		E2A553FA2A39C82D005204C3 /* LogView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LogView.swift; sourceTree = "<group>"; };
 		E2A553FC2A39C86B005204C3 /* LogEntry.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LogEntry.swift; sourceTree = "<group>"; };
+		E2A553FE2A3A1024005204C3 /* DayView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DayView.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -178,6 +180,7 @@
 				88404DDC2A2F587400D30244 /* HistoryListRow.swift */,
 				88404DDE2A2F68E100D30244 /* TemperatureDayOverview.swift */,
 				E2A553FA2A39C82D005204C3 /* LogView.swift */,
+				E2A553FE2A3A1024005204C3 /* DayView.swift */,
 			);
 			path = Views;
 			sourceTree = "<group>";
@@ -303,6 +306,7 @@
 				88404DD82A2F381B00D30244 /* HistoryList.swift in Sources */,
 				88CDE07E2A28AFF400114294 /* DeviceInfoView.swift in Sources */,
 				88404DDD2A2F587400D30244 /* HistoryListRow.swift in Sources */,
+				E2A553FF2A3A1024005204C3 /* DayView.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

TempTrack/Bluetooth/BluetoothClient.swift

@@ -142,16 +142,16 @@ final class BluetoothClient: ObservableObject {
         guard let deviceInfo else {
             return
         }
-        guard !deviceInfo.hasDeviceStartTimeSet || deviceInfo.clockOffset > minimumOffsetToUpdateDeviceClock else {
+        guard !deviceInfo.hasDeviceStartTimeSet || abs(deviceInfo.clockOffset) > minimumOffsetToUpdateDeviceClock else {
             return
         }
 
         guard !openRequests.contains(where: { if case .setDeviceStartTime = $0 { return true }; return false }) else {
             return
         }
-        let time = deviceInfo.deviceStartTime.seconds
+        let time = deviceInfo.calculatedDeviceStartTime.seconds
         addRequest(.setDeviceStartTime(deviceStartTimeSeconds: time))
-        log.info("Setting device start time to \(time) s (\(Date().seconds) current)")
+        log.info("Setting device start time to \(time) s (correcting offset of \(Int(deviceInfo.clockOffset)) s)")
     }
     
     // MARK: Data transfer

TempTrack/Bluetooth/DeviceInfo.swift

@@ -52,9 +52,14 @@ struct DeviceInfo {
     
     var clockOffset: TimeInterval {
         // Measurements are performed on device start (-1) and also count next measurement (+1)
-        let nextMeasurementTime = deviceStartTime.adding(seconds: (totalNumberOfMeasurements) * measurementInterval)
+        let nextMeasurementTime = deviceStartTime.adding(seconds: totalNumberOfMeasurements * measurementInterval)
         return nextMeasurement.timeIntervalSince(nextMeasurementTime)
     }
+
+    var calculatedDeviceStartTime: Date {
+        let runtime = totalNumberOfMeasurements * measurementInterval
+        return nextMeasurement.adding(seconds: -runtime)
+    }
 }
 
 extension DeviceInfo {

TempTrack/ContentView.swift

@@ -104,7 +104,7 @@ struct ContentView: View {
                 self.showHistory = true
             } label: {
                 TemperatureHistoryChart(points: $storage.recentMeasurements)
-                    .frame(height: 150)
+                    .frame(height: 300)
                     .background(Color.white.opacity(0.1))
                     .cornerRadius(8)
             }

TempTrack/Storage/TemperatureStorage.swift

@@ -63,6 +63,7 @@ final class TemperatureStorage: ObservableObject {
         }
         
         ensureExistenceOfFolder()
+        recalculateDailyCounts()
     }
     
     private func ensureExistenceOfFolder() {
@@ -105,15 +106,15 @@ final class TemperatureStorage: ObservableObject {
         }
         let yesterdayValues = loadMeasurements(for: dateIndexOfStart)
             .filter { $0.date >= startDate }
-        recentMeasurements = yesterdayValues + todayValues
+        recentMeasurements = todayValues + yesterdayValues
         log.info("Loaded \(recentMeasurements.count) recent measurements")
     }
 
     private func updateLastMeasurements(_ measurements: [TemperatureMeasurement]) {
         let startDate = Date().addingTimeInterval(-lastValueInterval).seconds
-        let new = recentMeasurements + measurements
+        recentMeasurements = (measurements + recentMeasurements)
-        recentMeasurements = Array(new.drop { $0.id < startDate })
+            .filter { $0.id > startDate }
-        log.info("\(recentMeasurements.count) recent measurements (of \(measurements.count) new entries)")
+        log.info("\(recentMeasurements.count) recent measurements (with \(measurements.count) new entries)")
     }
     
     private func loadMeasurements(for date: Date) -> [TemperatureMeasurement] {
@@ -143,17 +144,19 @@ final class TemperatureStorage: ObservableObject {
 
     func add(_ measurements: [TemperatureMeasurement]) {
         let lastDate = self.newestMeasurementDate.seconds
-        let newerValues = measurements.filter { $0.id > lastDate }
+        let newerValues: [TemperatureMeasurement] = measurements.filter { $0.id > lastDate }.reversed()
         let newValues = newerValues.splitByDate()
-        log.info("Adding \(newValues.count) of \(measurements.count) measurements")
+        log.info("Adding \(newerValues.count) of \(measurements.count) measurements")
 
         for (dateIndex, values) in newValues {
             let count = saveNew(values, for: dateIndex)
             setDailyCount(count, for: dateIndex)
-            //log.info("Day \(dateIndex): \(count) values")
         }
         saveDailyCounts()
         updateLastMeasurements(measurements)
+        if let newest = newerValues.max()?.id {
+            newestMeasurementTime = newest
+        }
     }
     
     func removeMeasurements(for dateIndex: Int) {
@@ -176,7 +179,7 @@ final class TemperatureStorage: ObservableObject {
      */
     private func saveNew(_ measurements: [TemperatureMeasurement], for dateIndex: Int) -> Int {
         let fileName = fileName(for: dateIndex)
-        let values = loadMeasurements(from: fileName) + measurements
+        let values = measurements + loadMeasurements(from: fileName)
         save(values, for: fileName)
         return values.count
     }
@@ -184,7 +187,7 @@ final class TemperatureStorage: ObservableObject {
     private func save(_ measurements: [TemperatureMeasurement], for fileName: String) {
         let fileUrl = fileUrl(for: fileName)
         do {
-            let data = try BinaryEncoder.encode(measurements.sorted())
+            let data = try BinaryEncoder.encode(measurements.sorted().reversed())
             try data.write(to: fileUrl)
         } catch {
             log.error("Failed to save \(fileName): \(error)")
@@ -203,10 +206,7 @@ final class TemperatureStorage: ObservableObject {
     
     private func add(dailyCount count: Int, for dateIndex: Int) {
         let entry = MeasurementDailyCount(dateIndex: dateIndex, count: count)
-        guard let index = dailyMeasurementCounts.firstIndex(where: { $0.dateIndex < dateIndex }) else {
+        let index = dailyMeasurementCounts.firstIndex(where: { $0.dateIndex > dateIndex }) ?? 0
-            dailyMeasurementCounts.append(entry)
-            return
-        }
         dailyMeasurementCounts.insert(entry, at: index)
     }
     
@@ -240,8 +240,10 @@ final class TemperatureStorage: ObservableObject {
         self.dailyMeasurementCounts = measurements.reduce(into: [Int: Int]()) { counts, value in
             let index = value.date.dateIndex
             counts[index] = (counts[index] ?? 0) + 1
-        }.map { MeasurementDailyCount(dateIndex: $0.key, count: $0.value) }
+        }
+        .map { MeasurementDailyCount(dateIndex: $0.key, count: $0.value) }
         .sorted()
+        .reversed()
     }
     
     func recalculateDailyCounts() {
@@ -260,13 +262,13 @@ final class TemperatureStorage: ObservableObject {
                 self.dailyMeasurementCounts = newValues
                     .map { .init(dateIndex: $0.key, count: $0.value) }
                     .sorted()
+                    .reversed()
                 log.info("Daily counts recalculated from \(files.count) files")
             }
         } catch {
             log.error("Failed to load daily counts: \(error)")
         }
     }
-    
 }
 
 private extension Array where Element == TemperatureMeasurement {

TempTrack/Temperature/TemperatureDataTransfer.swift

@@ -56,12 +56,16 @@ final class TemperatureDataTransfer {
     
     func add(data: Data, offset: Int, count: Int) {
         guard currentByteIndex == offset else {
-            log.warning("Discarding \(data.count) bytes at offset \(offset), expected \(currentByteIndex)")
+            log.warning("Transfer: Discarding \(data.count) bytes at offset \(offset), expected \(currentByteIndex)")
             return
         }
+        if data.count != count {
+            log.warning("Transfer: Expected \(count) bytes, received only \(data.count)")
+        }
         dataBuffer.append(data)
         currentByteIndex += data.count
         processBytes()
+        log.info("Transfer: \(currentByteIndex) bytes (added \(data.count)), \(measurements.count) points")
     }
     
     private func processBytes() {
@@ -83,6 +87,10 @@ final class TemperatureDataTransfer {
     
     func completeTransfer() {
         processBytes()
+        if !dataBuffer.isEmpty {
+            log.warning("\(dataBuffer.count) bytes remaining in transfer buffer")
+        }
+        log.info("Transfer: \(currentByteIndex) bytes, \(measurements.count) points")
     }
     
     private func addRelative(byte: UInt8) {

TempTrack/Temperature/TemperatureMeasurement.swift

@@ -27,7 +27,7 @@ struct TemperatureMeasurement: Identifiable {
             return sensor1.optionalValue
         }
         guard let s1 = sensor1.optionalValue else {
-            return nil
+            return s0
         }
         return max(s0, s1)
     }
@@ -37,10 +37,27 @@ struct TemperatureMeasurement: Identifiable {
             return sensor1.optionalValue
         }
         guard let s1 = sensor1.optionalValue else {
-            return nil
+            return s0
         }
         return min(s0, s1)
     }
+
+    var averageValue: Double? {
+        guard let s0 = sensor0.optionalValue else {
+            return sensor1.optionalValue
+        }
+        guard let s1 = sensor1.optionalValue else {
+            return s0
+        }
+        return (s0 + s1) / 2
+    }
+
+    var displayText: String {
+        guard let averageValue else {
+            return "-"
+        }
+        return String(format: "%.1f °C", averageValue)
+    }
 }
 
 extension TemperatureMeasurement {

TempTrack/Views/DayView.swift

@@ -0,0 +1,38 @@
+import SwiftUI
+
+private let df: DateFormatter = {
+    let df = DateFormatter()
+    df.dateStyle = .short
+    df.timeStyle = .medium
+    return df
+}()
+
+struct DayView: View {
+
+    let dateIndex: Int
+
+    @EnvironmentObject
+    var storage: TemperatureStorage
+
+    var entries: [TemperatureMeasurement] {
+        storage.loadMeasurements(for: dateIndex)
+    }
+
+    var body: some View {
+        TemperatureDayOverview(points: entries)
+        List(entries) { entry in
+            HStack {
+                Text(df.string(from: entry.date))
+                Spacer()
+                Text(entry.displayText)
+            }
+        }
+    }
+}
+
+struct DayView_Previews: PreviewProvider {
+    static var previews: some View {
+        DayView(dateIndex: Date.now.dateIndex)
+            .environmentObject(TemperatureStorage.mock)
+    }
+}

TempTrack/Views/HistoryList.swift

@@ -9,16 +9,17 @@ struct HistoryList: View {
         NavigationView {
             List(storage.dailyMeasurementCounts) { day in
                 NavigationLink(destination: {
-                    TemperatureDayOverview(storage: storage, dateIndex: day.dateIndex)
+                    DayView(dateIndex: day.dateIndex)
+                        .environmentObject(storage)
                 }) {
                     HistoryListRow(entry: day)
                         .swipeActions(edge: .trailing, allowsFullSwipe: true) {
                             Button {
                                 deleteRow(for: day.dateIndex)
                             } label: {
-                                Label("Delete", systemSymbol: .pencil)
+                                Label("Delete", systemSymbol: .trash)
                             }
-                            .tint(.purple)
+                            .tint(.red)
                         }
                 }
             }

TempTrack/Views/LogView.swift

@@ -1,17 +1,17 @@
 import SwiftUI
 
+private let df: DateFormatter = {
+    let df = DateFormatter()
+    df.dateStyle = .short
+    df.timeStyle = .medium
+    return df
+}()
+
 struct LogView: View {
 
     @EnvironmentObject
     var log: Log
 
-    private let df: DateFormatter = {
-        let df = DateFormatter()
-        df.dateStyle = .short
-        df.timeStyle = .medium
-        return df
-    }()
-
     var body: some View {
         List(log.logEntries) { entry in
             VStack(alignment: .leading) {

TempTrack/Views/TemperatureDayOverview.swift

@@ -3,13 +3,13 @@ import Charts
 
 struct TemperatureDayOverview: View {
 
-    let storage: TemperatureStorage
+    let points: [TemperatureMeasurement]
 
-    @State
+    init(points: [TemperatureMeasurement]) {
-    var points: [TemperatureMeasurement] = []
+        self.points = points
+    }
     
     init(storage: TemperatureStorage, dateIndex: Int) {
-        self.storage = storage
         let points = storage.loadMeasurements(for: dateIndex)
         self.points = points
         update()

TempTrack/Views/TemperatureHistoryChart.swift

@@ -34,7 +34,7 @@ struct TemperatureHistoryChart: View {
         .chartXAxis(.hidden)
         .chartLegend(.hidden)
         .chartYAxis {
-            AxisMarks(position: .trailing, values: .automatic) { value in
+            AxisMarks(position: .trailing, values: .stride(by: 10)) { value in
                 AxisValueLabel(multiLabelAlignment: .trailing) {
                     if let intValue = value.as(Int.self) {
                         Text("\(intValue)°")