private static Employee GivePromotion(Employee employee, double rate)
{
return(employee.With(
salary: employee.Salary *(1 + rate),
role: EmployeeAppHelpers.NextRole(employee.Role)
));
}
private static Either <Error, Unit> Loop()
{
EmployeeAppHelpers.PrintWelcomeMessage();
return(ReadAction()
.Bind(action =>
EmployeeApp.Run(action)
)
.Match(
Right: _ => RetryPrompt(),
Left: error =>
{
Console.WriteLine("Error: " + error.Message);
return RetryPrompt();
}
));
//return (
// from action in ReadAction()
// from result in EmployeeApp.Run(action)
// select result
//).Match(
// Right: _ => RetryPrompt(),
// Left: error =>
// {
// Console.WriteLine("Error: " + error.Message);
// return RetryPrompt();
// }
//);
}
private static void Loop()
{
EmployeeAppHelpers.PrintWelcomeMessage();
var action = Enum.Parse <UserAction>(Console.ReadLine());
EmployeeApp.Run(action);
RetryPrompt();
}
private static Option <Unit> Loop()
{
EmployeeAppHelpers.PrintWelcomeMessage();
return(ReadAction()
.Bind((action) => EmployeeApp.Run(action))
.Match(
Some: _ => RetryPrompt(),
None: () =>
{
Console.WriteLine("Error occured!");
return RetryPrompt();
}
));
}
public void Run(UserAction action)
{
switch (action)
{
case UserAction.Show:
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
Console.WriteLine(employee.ToString());
break;
}
case UserAction.Raise:
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
var happyEmployee = GiveRaise(employee, RAISE_RATE);
Console.WriteLine("Employee " + employee);
Console.WriteLine("Happy Employee " + happyEmployee);
break;
}
case UserAction.Promote:
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
var happyEmployee = GivePromotion(employee, RAISE_RATE);
Console.WriteLine("Employee " + employee);
Console.WriteLine("Happy Employee " + happyEmployee);
break;
}
case UserAction.ReportAll:
{
var employees = DbHelper.GetEmployees();
var report = employees
.GroupBy(x => x.Role)
.ToDictionary(
xs => xs.Key,
xs => xs.Select(x => x.Salary / 52).Sum()
);
EmployeeAppHelpers.PrintReport(report);
break;
}
case UserAction.ReportByRole:
{
var employees = DbHelper.GetEmployees();
var role = ReadRole();
// NOTE: there many ways to do this
var report = employees
.GroupBy(x => x.Role)
.Where(x => x.Key == role)
.ToDictionary(
xs => xs.Key,
xs => xs.Select(x => x.Salary / 52).Sum()
);
EmployeeAppHelpers.PrintReport(report);
break;
}
default:
throw new Exception($"Something really bad has happened, Action of {action} is invalid");
}
}
private static Unit PrintReport(IDictionary <Role, double> report)
{
EmployeeAppHelpers.PrintReport(report);
return(unit);
}
public void Run(string action)
{
if (action == "Show")
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
Console.WriteLine(employee.ToString());
}
else if (action == "Raise")
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
var happyEmployee = GiveRaise(employee);
Console.WriteLine("Employee " + employee);
Console.WriteLine("Happy Employee " + happyEmployee);
}
else if (action == "Promote")
{
var id = ReadEmployeeId();
var employee = DbHelper.GetEmployee(id);
var happyEmployee = GivePromotion(employee);
Console.WriteLine("Employee " + employee);
Console.WriteLine("Happy Employee " + happyEmployee);
}
else if (action == "ReportAll")
{
var employees = DbHelper.GetEmployees();
var report = new Dictionary <Role, double>();
foreach (var employee in employees)
{
if (!report.ContainsKey(employee.Role))
{
report[employee.Role] = 0d;
}
report[employee.Role] = report[employee.Role] + (employee.Salary / 52);
}
EmployeeAppHelpers.PrintReport(report);
}
else if (action == "ReportByRole")
{
var role = ReadRole();
var employees = DbHelper.GetEmployees();
var report = new Dictionary <Role, double>();
foreach (var employee in employees)
{
if (employee.Role != role)
{
continue;
}
if (!report.ContainsKey(employee.Role))
{
report[employee.Role] = 0d;
}
report[employee.Role] = report[employee.Role] + (employee.Salary / 52);
}
EmployeeAppHelpers.PrintReport(report);
}
else
{
throw new Exception($"Action of {action} is invalid");
}
}
private static Employee GivePromotion(Employee employee)
{
employee.Salary *= (1 + RAISE_RATE);
employee.Role = EmployeeAppHelpers.NextRole(employee.Role);
return(employee);
}
