NetNewsWire/Commands/MarkCommandValidationStatus...

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//
// MarkCommandValidationStatus.swift
// Evergreen
//
// Created by Brent Simmons on 2/17/18.
// Copyright © 2018 Ranchero Software. All rights reserved.
//
import Foundation
enum MarkCommandValidationStatus {
case canMark, canUnmark, canDoNothing
static func statusFor(_ articles: ArticleArray, _ canMarkTest: ((ArticleArray) -> Bool)) -> MarkCommandValidationStatus {
if articles.isEmpty {
return .canDoNothing
}
return canMarkTest(articles) ? .canMark : .canUnmark
}
}