public PreserveCommandValidator(IProjectValidator projectValidator, ITagValidator tagValidator)
{
CascadeMode = CascadeMode.Stop;
RuleFor(command => command)
.MustAsync((command, token) => NotBeAClosedProjectForTagAsync(command.TagId, token))
.WithMessage(command => $"Project for tag is closed! Tag={command.TagId}")
.MustAsync(BeAnExistingRequirementAsync)
.WithMessage((x, id) => "Tag and/or requirement doesn't exist!")
.MustAsync((command, token) => NotBeAVoidedTagAsync(command.TagId, token))
.WithMessage((x, id) => $"Tag is voided! Tag={id}")
.MustAsync((command, token) => PreservationIsStartedAsync(command.TagId, token))
.WithMessage((x, id) => $"Tag must have status {PreservationStatus.Active} to preserve! Tag={id}")
.MustAsync((command, token) => RequirementIsReadyToBePreservedAsync(command.TagId, command.RequirementId, token))
.WithMessage((command, _) =>
$"Tag doesn't have this requirement ready to be preserved! Tag={command.TagId}. Requirement={command.RequirementId}");
async Task <bool> NotBeAClosedProjectForTagAsync(int tagId, CancellationToken token)
=> !await projectValidator.IsClosedForTagAsync(tagId, token);
async Task <bool> BeAnExistingRequirementAsync(PreserveCommand command, CancellationToken token)
=> await tagValidator.ExistsRequirementAsync(command.TagId, command.RequirementId, token);
async Task <bool> NotBeAVoidedTagAsync(int tagId, CancellationToken token)
=> !await tagValidator.IsVoidedAsync(tagId, token);
async Task <bool> PreservationIsStartedAsync(int tagId, CancellationToken token)
=> await tagValidator.VerifyPreservationStatusAsync(tagId, PreservationStatus.Active, token);
async Task <bool> RequirementIsReadyToBePreservedAsync(int tagId, int requirementId, CancellationToken token)
=> await tagValidator.RequirementIsReadyToBePreservedAsync(tagId, requirementId, token);
}