56 lines
1.1 KiB
Swift
56 lines
1.1 KiB
Swift
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//
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// ArticleFetcher.swift
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// Account
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//
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// Created by Brent Simmons on 2/4/18.
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// Copyright © 2018 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import Data
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public protocol ArticleFetcher {
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func fetchArticles() -> Set<Article>
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func fetchUnreadArticles() -> Set<Article>
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}
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extension Feed: ArticleFetcher {
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public func fetchArticles() -> Set<Article> {
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guard let account = account else {
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assertionFailure("Expected feed.account, but got nil.")
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return Set<Article>()
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}
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return account.fetchArticles(for: self)
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}
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public func fetchUnreadArticles() -> Set<Article> {
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guard let account = account else {
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assertionFailure("Expected feed.account, but got nil.")
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return Set<Article>()
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}
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return account.fetchUnreadArticles(for: self)
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}
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}
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extension Folder: ArticleFetcher {
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public func fetchArticles() -> Set<Article> {
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return fetchUnreadArticles()
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}
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public func fetchUnreadArticles() -> Set<Article> {
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guard let account = account else {
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assertionFailure("Expected folder.account, but got nil.")
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return Set<Article>()
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}
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return account.fetchArticles(folder: self)
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}
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}
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