public void Greet(string name)
{
var message = _nameValidator.IsValid(name)
? $"Hello World, {name}!"
: "I don't know you, stranger.";
_inOut.WriteToOutput(message);
}
public async Task Execute(AcceptTheRulesInput input)
{
if (input is null)
{
throw new Exception($"The parameter {nameof(input)} cannot be null.");
}
if (!_validator.IsValid(input.Username))
{
Output.Error("Invalid Username");
return;
}
await _roles.AssignMemberRole(input.UserId);
Output.Default(new AcceptTheRulesOutput(input.Username, input.Bio));
}
/// <summary>
/// Register a command.
/// </summary>
/// <param name="type">The <see cref="Type" /> implementing the command.</param>
public void Register(Type type)
{
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
var implementsInterface = DoesImplementICommand(type);
if (!implementsInterface)
{
throw new ArgumentException(string.Format(Texts.ParameterDoesNotImplementICommand, type.FullName), nameof(type));
}
var descriptor = _commandDescriptorGenerator.DescribeCommand(type);
if (descriptor == null)
{
throw new InvalidOperationException(string.Format(Texts.DescriptorCouldNotBeGenerated, type.FullName));
}
var validCommandName = _nameValidator.IsValid(descriptor.CommandName);
if (!validCommandName)
{
throw new InvalidCommandNameException(descriptor.CommandName);
}
if (_registeredTypes.ContainsKey(descriptor.CommandName))
{
var existing = _registeredTypes[descriptor.CommandName];
if (existing.ImplementingType != type)
{
throw new CommandNameAlreadyUsedException(descriptor.CommandName, type, _registeredTypes[descriptor.CommandName].ImplementingType);
}
}
else
{
_registeredTypes.Add(descriptor.CommandName, descriptor);
}
}