NetNewsWire/Shared/Data/ArticleUtilities.swift

87 lines
1.9 KiB
Swift

//
// ArticleUtilities.swift
// NetNewsWire
//
// Created by Brent Simmons on 7/25/15.
// Copyright © 2015 Ranchero Software, LLC. All rights reserved.
//
import Foundation
import RSCore
import Articles
import Account
// These handle multiple accounts.
@discardableResult
func markArticles(_ articles: Set<Article>, statusKey: ArticleStatus.Key, flag: Bool) -> Set<Article>? {
let d: [String: Set<Article>] = accountAndArticlesDictionary(articles)
var updatedArticles = Set<Article>()
for (accountID, accountArticles) in d {
guard let account = AccountManager.shared.existingAccount(with: accountID) else {
continue
}
if let accountUpdatedArticles = account.markArticles(accountArticles, statusKey: statusKey, flag: flag) {
updatedArticles.formUnion(accountUpdatedArticles)
}
}
return updatedArticles
}
private func accountAndArticlesDictionary(_ articles: Set<Article>) -> [String: Set<Article>] {
let d = Dictionary(grouping: articles, by: { $0.accountID })
return d.mapValues{ Set($0) }
}
extension Article {
var feed: Feed? {
return account?.existingFeed(with: feedID)
}
var preferredLink: String? {
return url ?? externalURL
}
var body: String? {
return contentHTML ?? contentText ?? summary
}
var logicalDatePublished: Date {
return datePublished ?? dateModified ?? status.dateArrived
}
func avatarImage() -> RSImage? {
if let authors = authors {
for author in authors {
if let image = appDelegate.authorAvatarDownloader.image(for: author) {
return image
}
}
}
guard let feed = feed else {
return nil
}
let feedIconImage = appDelegate.feedIconDownloader.icon(for: feed)
if feedIconImage != nil {
return feedIconImage
}
if let faviconImage = appDelegate.faviconDownloader.faviconAsAvatar(for: feed) {
return faviconImage
}
return FaviconGenerator.favicon(feed)
}
}