Allow deletion of measurements

TempTrack/Temperature/TemperatureDataTransfer.swift

@@ -55,6 +55,10 @@ final class TemperatureDataTransfer {
     }
     
     func add(data: Data, offset: Int, count: Int) {
+        guard currentByteIndex == offset else {
+            print("Discarding \(data.count) bytes at offset \(offset), expected \(currentByteIndex)")
+            return
+        }
         dataBuffer.append(data)
         currentByteIndex += data.count
         processBytes()

TempTrack/Temperature/TemperatureSensor.swift

@@ -28,7 +28,7 @@ struct TemperatureSensor {
     }
     
     var updateText: String {
-        date.timePassedText
+        date.shortTimePassedText
     }
     
     static func temperatureIcon(_ temp: Double?) -> SFSymbol {
@@ -60,3 +60,17 @@ extension TemperatureSensor {
         self.date = Date().addingTimeInterval(-TimeInterval(secondsAgo))
     }
 }
+
+extension Data {
+    
+    mutating func decodeSensor() throws -> TemperatureSensor? {
+        guard count >= 11 else {
+            throw DeviceInfoError.missingData
+        }
+        let address = Array(self[startIndex..<startIndex+8])
+        removeFirst(8)
+        let temperatureByte = removeFirst()
+        let time = try decodeUInt16()
+        return .init(address: address, valueByte: temperatureByte, secondsAgo: time)
+    }
+}

TempTrack/Temperature/TemperatureValue.swift

@@ -49,7 +49,7 @@ enum TemperatureValue {
         case .invalidMeasurement:
             return "Invalid"
         case .value(let value):
-            return String(format:" %.1f°C", value)
+            return String(format:"%.1f°C", value)
         }
     }
 }