Improve temperature accuracy and layout

TempTrack/Storage/PersistentStorage.swift

@@ -167,9 +167,12 @@ final class PersistentStorage: ObservableObject {
     }
     
     func removeMeasurements(for dateIndex: Int) {
+        defer { saveDailyCounts() }
         let fileUrl = fileUrl(for: dateIndex)
         guard fm.fileExists(atPath: fileUrl.path) else {
             log.warning("No measurements for \(fileUrl.lastPathComponent)")
+            dailyMeasurementCounts = dailyMeasurementCounts.filter { $0.dateIndex != dateIndex }
+            recentMeasurements = recentMeasurements.filter { $0.date.dateIndex != dateIndex }
             return
         }
         do {

TempTrack/Temperature/TemperatureMeasurement.swift

@@ -53,10 +53,7 @@ struct TemperatureMeasurement: Identifiable {
     }
 
     var displayText: String {
-        guard let averageValue else {
-            return "-"
-        }
-        return String(format: "%.1f °C", averageValue)
+        "\(sensor0.text) / \(sensor1.text)"
     }
 }
 

TempTrack/Temperature/TemperatureValue.swift

@@ -23,7 +23,7 @@ enum TemperatureValue {
         case .invalidMeasurement:
             return 1
         case .value(let double):
-            let value = Int(double + 40) * 2
+            let value = (double * 2).roundedInt + 80
             return UInt8(clamping: value)
         }
     }
@@ -45,11 +45,11 @@ enum TemperatureValue {
     var text: String {
         switch self {
         case .notFound:
-            return "No sensor"
+            return "-"
         case .invalidMeasurement:
-            return "Invalid"
+            return "?"
         case .value(let value):
-            return String(format:"%.1f°C", value)
+            return String(format:"%.1f°", value)
         }
     }
 }

TempTrack/Views/DayView.swift

@@ -7,6 +7,13 @@ private let df: DateFormatter = {
     return df
 }()
 
+private let dateFormatter: DateFormatter = {
+    let df = DateFormatter()
+    df.dateStyle = .medium
+    df.timeStyle = .none
+    return df
+}()
+
 struct DayView: View {
 
     let dateIndex: Int

TempTrack/Views/TemperatureDayOverview.swift

@@ -47,7 +47,7 @@ struct TemperatureDayOverview: View {
                 }
             }
         }
-        .aspectRatio(2.6, contentMode: .fit)
+        .aspectRatio(1, contentMode: .fit)
         //.chartXScale(domain: pastDateLimit...futureDateLimit)
         .chartYScale(domain: lowerTempLimit...upperTempLimit)
         .chartXAxis {
@@ -71,7 +71,6 @@ struct TemperatureDayOverview: View {
                 AxisGridLine()
             }
         }
-        .padding()
     }
 }