static void Main(string[] args)
{
signalHandler += HandleConsoleSignal;
ConsoleHelper.SetSignalHandler(signalHandler, true);
//create tables
Department.CreateDepartmentData();
ManagerDB.CreateManagerData();
EmployeeDB.CreateEmployeeData();
Console.WriteLine("Programm begin. For help press Alt + 'h'. Enter command : ");
ConsoleKeyInfo res;
char r;
Console.WriteLine();
//we accept commands until we press alt + q
do
{
res = Console.ReadKey(true);
r = res.KeyChar;
switch (res.Modifiers)
{
case ConsoleModifiers.Alt:
AltSelection(res);
break;
case ConsoleModifiers.Shift:
ShiftSelection(res);
break;
default: Console.WriteLine("Unknown command");
break;
}
}while ((r != 'q') || (res.Modifiers != ConsoleModifiers.Alt));
EmployeeDB.employeeTable.WriteXml("employee.xml");
ManagerDB.managerTable.WriteXml("managerTable.xml");
Console.Clear();
Console.WriteLine("program terminated");
}
//method for deleted a row with replace
public static bool DeleteRow(DataRow row)
{
string msg = "Manager is removed only with replacement\n" +
"to replace with an a new manager press 'n'\n" +
"to replace with an existing employee press 'e'\n" +
"to replace with an existing manager press 'm'\n";
string CurrentManagerId = row[0].ToString();
string DepartmentName = row[5].ToString();
string CurrentManagerName = $"{row[1]} {row[2]} (id: {row[0]})";
string DepartmentID = Department.GetId(DepartmentName).ToString();
char key = DataBase.GetChar(msg);
switch (key)
{
case 'n': //replace with a new manager
if (DataBase.AddRowForReplace(managerTable, DepartmentID)) //if added a new manager
{
managerTable.Rows.Remove(row); //remove the existing manager
//replace the value of the existing manager with the new manager in the users table
EmployeeDB.ChangeManeger(manager: CurrentManagerName, newManager: GetLastManager());
return(true);
}
break;
case 'm': // replace one existing manager with another existing manager
Console.WriteLine("enter ID existing manager: ");
string exManId = Console.ReadLine(); // getting id
if (CheckId(exManId)) // if value valid
{
DataRow existingManager = GetRowById(exManId);
if (row[5].Equals(existingManager[5])) // if the departments are the same
{
managerTable.Rows.Remove(row); //remove manager
EmployeeDB.ChangeManeger(manager: CurrentManagerName, newManager: GetLastManager());
return(true);
}
else
{
Console.WriteLine("Manager departments must match\n");
}
}
else
{
Console.WriteLine("Invalid manager ID");
}
break;
case 'e': // replace the existing manager with an employee
Console.WriteLine("enter ID existing employee: ");
string exEmpId = Console.ReadLine(); // getting employee ID
if (DataBase.CheckId(EmployeeDB.employeeTable, exEmpId)) // if the ID is valid
{
DataRow rowEmployee = EmployeeDB.GetRowById(exEmpId); //geting employee row
// add an employee as a manager
AddRow(new string[] { rowEmployee[1].ToString(), rowEmployee[2].ToString(),
rowEmployee[3].ToString(), rowEmployee[4].ToString(), DepartmentID });
// delete an employee
EmployeeDB.DeleteRow(rowEmployee);
managerTable.Rows.Remove(row);
EmployeeDB.ChangeManeger(manager: CurrentManagerName, newManager: GetLastManager());
return(true);
}
else
{
Console.WriteLine("Invalid employee ID");
}
break;
default:
Console.WriteLine("Unknown command");
break;
}
return(false);
}
