fixed an error where get command cant serlialize employee

TestClient/Program.cs

@@ -36,6 +36,7 @@ public class Tester
             "clock in",
             "clock out",
             "clock break",
+            "clockhistory",
             "help"
         };
 
@@ -105,12 +106,46 @@ public class Tester
                     var responseLines = response.Split("%break").ToList();
                     await messageBox.ShowAsync("Command Result: clock break", responseLines);
                 }
+                else if (command == "clockhistory")
+                {
+                    List<string> history = new List<string>();
+                    string historyString = server.FullClockHistory().Result;
+                    ClockHistoryResponse historyResponse;
+                    try
+                    {
+                        historyResponse = JsonSerializer.Deserialize<ClockHistoryResponse>(historyString);
+                    }
+                    catch (Exception e)
+                    {
+                        ms.Error(e.Message);
+                        return;
+                    }
+                    Dictionary<int, Employee> employees = new Dictionary<int, Employee>();
+                    foreach (ClockEntry clockEntry in historyResponse.data)
+                    {
+                        if (!employees.ContainsKey(clockEntry.EmployeeId))
+                        {
+                            Employee newEmployee = await server.GetEmployee(id: clockEntry.EmployeeId);
+                            employees.Add(clockEntry.EmployeeId, newEmployee);
+                            ms.Log(newEmployee.ToJson());
+                        }
+                        
+                        history.Add($"{clockEntry.EmployeeId}-{employees[clockEntry.EmployeeId].Code} - {clockEntry.NewState} - {clockEntry.ChangeTime}");
+                        //Console.WriteLine($"{clockEntry.EmployeeId}-{employees[clockEntry.EmployeeId].Code} - {clockEntry.NewState} - {clockEntry.ChangeTime}");
+                    }
+                    ItemSelector selectorTemp = new ItemSelector(ms);
+                    selectorTemp.SetTitle("Clock History");
+                    selectorTemp.SelectItemFromList(history.ToArray());
+                    //Console.ReadKey();
+                }
             }
             catch (Exception ex)
             {
                 await messageBox.ShowAsync("Error", new List<string> { ex.Message });
             }
-
+            
+            
+            
             /*
             string input = "";
             if (command.Contains("login"))
@@ -140,4 +175,15 @@ public class Tester
                 */
         }
     }
+}
+public class ClockEntry
+{
+    public int EmployeeId { get; set; }
+    public int NewState { get; set; }
+    public DateTime ChangeTime { get; set; }
+}
+public class ClockHistoryResponse
+{
+    public bool error { get; set; }
+    public List<ClockEntry> data { get; set; } = new();
 }