public IList <string> InitializeCommandState(
CommandState commandState,
TerminalState terminalState,
FileSystemState fileSystemState,
DirectoryController directoryController)
{
var commandsInitialized = new List <string>();
var helpCommand = new HelpCommand(commandState);
var isAddCommandSuccess = commandState.TryAddAvailableCommand(helpCommand.GetCommandName(), helpCommand);
Debug.Assert(isAddCommandSuccess, "Failed to add `help` command to available command state");
commandsInitialized.Add(helpCommand.GetCommandName());
var clearCommand = new ClearCommand(terminalState);
isAddCommandSuccess = commandState.TryAddAvailableCommand(clearCommand.GetCommandName(), clearCommand);
Debug.Assert(isAddCommandSuccess, "Failed to add `clear` command to available command state");
commandsInitialized.Add(clearCommand.GetCommandName());
var listCommand = new ListCommand(fileSystemState, directoryController);
isAddCommandSuccess = commandState.TryAddAvailableCommand(listCommand.GetCommandName(), listCommand);
Debug.Assert(isAddCommandSuccess, "Failed to add `ls` command to available command state");
commandsInitialized.Add(listCommand.GetCommandName());
var changeDirectoryCommand = new ChangeDirectoryCommand(fileSystemState, directoryController);
isAddCommandSuccess = commandState.TryAddAvailableCommand(changeDirectoryCommand.GetCommandName(), changeDirectoryCommand);
Debug.Assert(isAddCommandSuccess, "Failed to add `cd` command to available command state");
commandsInitialized.Add(changeDirectoryCommand.GetCommandName());
return(commandsInitialized);
}