/// <summary>
/// Gets the list of allowed templates from <paramref name="templateGroup"/> as the result of constraints evaluation.
/// </summary>
internal static async Task <IEnumerable <CliTemplateInfo> > GetAllowedTemplatesAsync(this TemplateGroup templateGroup, TemplateConstraintManager constraintManager, CancellationToken cancellationToken)
{
IReadOnlyList <(ITemplateInfo Template, IReadOnlyList <TemplateConstraintResult> Result)> results =
await constraintManager.EvaluateConstraintsAsync(templateGroup.Templates, cancellationToken).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
return(results.Where(r => r.Result.IsTemplateAllowed()).Select(r => r.Template).Cast <CliTemplateInfo>());
}
internal static async Task <IReadOnlyList <TemplateConstraintResult> > ValidateConstraintsAsync(TemplateConstraintManager constraintManager, ITemplateInfo template, CancellationToken cancellationToken)
{
if (!template.Constraints.Any())
{
return(Array.Empty <TemplateConstraintResult>());
}
IReadOnlyList <(ITemplateInfo Template, IReadOnlyList <TemplateConstraintResult> Result)> result = await constraintManager.EvaluateConstraintsAsync(new[] { template }, cancellationToken).ConfigureAwait(false);
IReadOnlyList <TemplateConstraintResult> templateConstraints = result.Single().Result;
if (templateConstraints.IsTemplateAllowed())
{
return(Array.Empty <TemplateConstraintResult>());
}
return(templateConstraints.Where(cr => cr.EvaluationStatus != TemplateConstraintResult.Status.Allowed).ToList());
}