Esempio n. 1
0
        private static IEnumerable <IRenderable> GetUsage(CommandModel model, CommandInfo?command)
        {
            var composer = new Composer();

            composer.Style("yellow", "USAGE:").LineBreak();
            composer.Tab().Text(model.GetApplicationName());

            var parameters = new List <string>();

            if (command == null)
            {
                parameters.Add("[grey][[OPTIONS]][/]");
                parameters.Add("[aqua]<COMMAND>[/]");
            }
            else
            {
                foreach (var current in command.Flatten())
                {
                    var isCurrent = current == command;

                    if (!current.IsDefaultCommand)
                    {
                        if (isCurrent)
                        {
                            parameters.Add($"[underline]{current.Name.EscapeMarkup()}[/]");
                        }
                        else
                        {
                            parameters.Add($"{current.Name.EscapeMarkup()}");
                        }
                    }

                    if (current.Parameters.OfType <CommandArgument>().Any())
                    {
                        if (isCurrent)
                        {
                            foreach (var argument in current.Parameters.OfType <CommandArgument>()
                                     .Where(a => a.Required).OrderBy(a => a.Position).ToArray())
                            {
                                parameters.Add($"[aqua]<{argument.Value.EscapeMarkup()}>[/]");
                            }
                        }

                        var optionalArguments = current.Parameters.OfType <CommandArgument>().Where(x => !x.Required).ToArray();
                        if (optionalArguments.Length > 0 || !isCurrent)
                        {
                            foreach (var optionalArgument in optionalArguments)
                            {
                                parameters.Add($"[silver][[{optionalArgument.Value.EscapeMarkup()}]][/]");
                            }
                        }
                    }

                    if (isCurrent)
                    {
                        parameters.Add("[grey][[OPTIONS]][/]");
                    }
                }

                if (command.IsBranch)
                {
                    parameters.Add("[aqua]<COMMAND>[/]");
                }
            }

            composer.Join(" ", parameters);
            composer.LineBreaks(2);

            return(new[]
            {
                composer,
            });
        }