Created class for dealing with unknown HAN port of Kaifa meter

Code/HanDebugger/HanDebugger/HanDebugger.csproj

@@ -44,6 +44,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Crc16.cs" />
+    <Compile Include="KaifaHanBeta.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Reader.cs" />

Code/HanDebugger/HanDebugger/KaifaHanBeta.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace HanDebugger
+{
+    // As it seems Kaifa/Valider put some premature firmware on my AMS,
+    // there's need for some dirty hacks to get any information
+    public class KaifaHanBeta
+    {
+        public const byte ListUnknown = 0x00;
+        public const byte List1 = 0x01;
+        public const byte List2 = 0x0D;
+        public const byte List3 = 0x12;
+
+        public static byte GetPackageID(byte[] package, int start, int length)
+        {
+            switch (package[start + 23])
+            {
+                case List1:
+                case List2:
+                case List3:
+                    return package[start + 23];
+                default:
+                    return 0x00;
+            }
+        }
+
+        public static double GetPackageTime(byte[] package, int start, int length)
+        {
+            const int timeStart = 10;
+            int year = package[start + timeStart] << 8 |
+                package[start + timeStart + 1];
+
+            int month = package[start + timeStart + 2];
+            int day = package[start + timeStart + 3];
+            int hour = package[start + timeStart + 5];
+            int minute = package[start + timeStart + 6];
+            int second = package[start + timeStart + 7];
+
+
+            return new DateTime(year, month, day, hour, minute, second).Subtract(new DateTime(1970, 1, 1, 0, 0, 0, 0)).TotalSeconds;
+        }
+    }
+}

Code/HanDebugger/HanDebuggerTest/HanDebuggerTest.csproj

@@ -52,6 +52,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="DlmsReaderTest.cs" />
     <Compile Include="ReaderTest.cs" />
+    <Compile Include="KaifaHanBetaTest.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
@@ -63,6 +64,9 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
+    <Content Include="ESP 20170918 Raw.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="SampleData.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>

Code/HanDebugger/HanDebuggerTest/KaifaHanBetaTest.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Linq;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.IO;
+using System.Collections.Generic;
+using HanDebugger;
+
+namespace HanDebuggerTest
+{
+    [TestClass]
+    [DeploymentItem(@"ESP 20170918 Raw.txt")]
+    [DeploymentItem("Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll")]
+    public class KaifaHanBetaTest
+    {
+        [TestMethod]
+        public void TestGetPackageID()
+        {
+            Dictionary<byte, int> packageCount = new Dictionary<byte, int>();
+            var packages = File.ReadAllLines("ESP 20170918 Raw.txt");
+            var lines = packages.Select(line => line.Trim().Split(' ').Select(v => (byte)int.Parse(v, System.Globalization.NumberStyles.HexNumber)).ToArray()).ToArray();
+            foreach (var line in lines)
+            {
+                byte list = KaifaHanBeta.GetPackageID(line, 0, line.Length);
+                if (packageCount.ContainsKey(list))
+                    packageCount[list]++;
+                else
+                    packageCount.Add(list, 1);
+            }
+            var startTime = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(KaifaHanBeta.GetPackageTime(lines[0], 0, lines[0].Length));
+            var finishTime = new DateTime(1970, 1, 1, 0, 0, 0, 0).AddSeconds(KaifaHanBeta.GetPackageTime(lines[packages.Length - 1], 0, packages[packages.Length - 1].Length));
+            var durationInSeconds = finishTime.Subtract(startTime).TotalSeconds;
+
+            Assert.IsTrue(durationInSeconds > 60 * 60 * 4, $"There should be more than 4 hours of recording. Was: {durationInSeconds / 60 * 60 * 4}");
+
+            double list3PerSecond = (1.0 / 3600.0);
+            double list2PerSecond = (1.0 / 10.0) - list3PerSecond;
+            double list1PerSecond = (1.0 / 2.0) - list2PerSecond;
+
+            Assert.AreEqual(false, packageCount.ContainsKey(KaifaHanBeta.ListUnknown), "There should be no unknown packages");
+            Assert.AreEqual(durationInSeconds * list1PerSecond, packageCount[KaifaHanBeta.List1], 1 + 0.01 * packageCount[KaifaHanBeta.List1], "There should be one 'List1' every 2.5s");
+            Assert.AreEqual(durationInSeconds * list2PerSecond, packageCount[KaifaHanBeta.List2], 1 + 0.01 * packageCount[KaifaHanBeta.List2], "There should be one 'List2' every 10s");
+            Assert.AreEqual(durationInSeconds * list3PerSecond, packageCount[KaifaHanBeta.List3], 1 + 0.01 * packageCount[KaifaHanBeta.List3], "There should be one 'List3' every 1h");
+
+            double targetList1To2Ratio = 4.0;
+            double actualList1To2Ratio = (double)packageCount[KaifaHanBeta.List1] / (double)packageCount[KaifaHanBeta.List2];
+            Assert.AreEqual(targetList1To2Ratio, actualList1To2Ratio, 0.01, "There should be a ratio of List1:List2 of 4");
+        }
+    }
+}