public FormatterResult <int> GetInt(string input)
{
FormatterResult <int> res = new FormatterResult <int>();
FormatterError formatterError = new FormatterError();
if (input == null)
{
res.Errors.Add(formatterError.Create("String is null"));
return(res);
}
if (input.Length == 0)
{
res.Errors.Add(formatterError.Create("String is empty"));
return(res);
}
int val = 0;
if (!int.TryParse(input, out val))
{
res.Errors.Add(formatterError.Create("Cant transform the string to int number"));
return(res);
}
if (val <= 0)
{
res.Errors.Add(formatterError.Create("Can be only positive number"));
return(res);
}
res.Value = val;
return(res);
}
public FormatterResult <string> GetString(string input)
{
FormatterResult <string> res = new FormatterResult <string>();
FormatterError formatterError = new FormatterError();
if (input == null)
{
res.Errors.Add(formatterError.Create("String is null"));
return(res);
}
if (input.Length == 0)
{
res.Errors.Add(formatterError.Create("String is empty"));
return(res);
}
Regex regex = new Regex("[a-zA-Z]");
if (!regex.IsMatch(input))
{
res.Errors.Add(formatterError.Create("String hasn't any word"));
return(res);
}
res.Value = input;
return(res);
}
public FormatterResult <DateTime> GetDateTime(string input)
{
FormatterResult <DateTime> res = new FormatterResult <DateTime>();
FormatterError formatterError = new FormatterError();
if (input == null)
{
res.Errors.Add(formatterError.Create("String is null"));
return(res);
}
if (input.Length == 0)
{
res.Errors.Add(formatterError.Create("String is empty"));
return(res);
}
DateTime val;
if (!DateTime.TryParse(input, out val))
{
res.Errors.Add(formatterError.Create("Cant transform the string to datetime format"));
return(res);
}
res.Value = val;
return(res);
}
private static DateTime GetDateTime()
{
FormatterResult <DateTime> res = null;
StringFormatter stringFormatter = new StringFormatter();
do
{
string input = Console.ReadLine();
res = stringFormatter.GetDateTime(input);
if (res.IsValid)
{
Console.WriteLine("All right");
}
else
{
Console.WriteLine("Errors:");
string s = string.Join("\n", res.Errors.Select(str => str.ErrorMessage));
Console.WriteLine(s);
}
}while (!res.IsValid);
return(res.Value);
}