NetNewsWire/Shared/Extensions/ArticleUtilities.swift

234 lines
5.4 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.
func markArticles(_ articles: Set<Article>, statusKey: ArticleStatus.Key, flag: Bool, completion: (() -> Void)? = nil) {
let d: [String: Set<Article>] = accountAndArticlesDictionary(articles)
let group = DispatchGroup()
for (accountID, accountArticles) in d {
guard let account = AccountManager.shared.existingAccount(with: accountID) else {
continue
}
group.enter()
account.markArticles(accountArticles, statusKey: statusKey, flag: flag) { _ in
group.leave()
}
}
group.notify(queue: .main) {
completion?()
}
}
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(withFeedID: feedID)
}
var url: URL? {
return URL.reparingIfRequired(rawLink)
}
var externalURL: URL? {
return URL.reparingIfRequired(rawExternalLink)
}
var imageURL: URL? {
return URL.reparingIfRequired(rawImageLink)
}
var link: String? {
// Prefer link from URL, if one can be created, as these are repaired if required.
// Provide the raw link if URL creation fails.
return url?.absoluteString ?? rawLink
}
var externalLink: String? {
// Prefer link from externalURL, if one can be created, as these are repaired if required.
// Provide the raw link if URL creation fails.
return externalURL?.absoluteString ?? rawExternalLink
}
var imageLink: String? {
// Prefer link from imageURL, if one can be created, as these are repaired if required.
// Provide the raw link if URL creation fails.
return imageURL?.absoluteString ?? rawImageLink
}
var preferredLink: String? {
if let link = link, !link.isEmpty {
return link
}
if let externalLink = externalLink, !externalLink.isEmpty {
return externalLink
}
return nil
}
var preferredURL: URL? {
return url ?? externalURL
}
var body: String? {
return contentHTML ?? contentText ?? summary
}
var logicalDatePublished: Date {
return datePublished ?? dateModified ?? status.dateArrived
}
var isAvailableToMarkUnread: Bool {
guard let markUnreadWindow = account?.behaviors.compactMap( { behavior -> Int? in
switch behavior {
case .disallowMarkAsUnreadAfterPeriod(let days):
return days
default:
return nil
}
}).first else {
return true
}
if logicalDatePublished.byAdding(days: markUnreadWindow) > Date() {
return true
} else {
return false
}
}
func iconImage() -> IconImage? {
return IconImageCache.shared.imageForArticle(self)
}
func iconImageUrl(feed: Feed) -> URL? {
if let image = iconImage() {
let fm = FileManager.default
var path = fm.urls(for: .cachesDirectory, in: .userDomainMask)[0]
let feedID = feed.feedID.replacingOccurrences(of: "/", with: "_")
#if os(macOS)
path.appendPathComponent(feedID + "_smallIcon.tiff")
#else
path.appendPathComponent(feedID + "_smallIcon.png")
#endif
fm.createFile(atPath: path.path, contents: image.image.dataRepresentation()!, attributes: nil)
return path
} else {
return nil
}
}
func byline() -> String {
guard let authors = authors ?? feed?.authors, !authors.isEmpty else {
return ""
}
// If the author's name is the same as the feed, then we don't want to display it.
// This code assumes that multiple authors would never match the feed name so that
// if there feed owner has an article co-author all authors are given the byline.
if authors.count == 1, let author = authors.first {
if author.name == feed?.nameForDisplay {
return ""
}
}
var byline = ""
var isFirstAuthor = true
for author in authors {
if !isFirstAuthor {
byline += ", "
}
isFirstAuthor = false
var authorEmailAddress: String? = nil
if let emailAddress = author.emailAddress, !(emailAddress.contains("noreply@") || emailAddress.contains("no-reply@")) {
authorEmailAddress = emailAddress
}
if let emailAddress = authorEmailAddress, emailAddress.contains(" ") {
byline += emailAddress // probably name plus email address
}
else if let name = author.name, let emailAddress = authorEmailAddress {
byline += "\(name) <\(emailAddress)>"
}
else if let name = author.name {
byline += name
}
else if let emailAddress = authorEmailAddress {
byline += "<\(emailAddress)>"
}
else if let url = author.url {
byline += url
}
}
return byline
}
}
// MARK: Path
struct ArticlePathKey {
static let accountID = "accountID"
static let accountName = "accountName"
static let feedID = "feedID"
static let articleID = "articleID"
}
extension Article {
public var pathUserInfo: [AnyHashable : Any] {
return [
ArticlePathKey.accountID: accountID,
ArticlePathKey.accountName: account?.nameForDisplay ?? "",
ArticlePathKey.feedID: feedID,
ArticlePathKey.articleID: articleID
]
}
}
// MARK: SortableArticle
extension Article: SortableArticle {
var sortableName: String {
return feed?.name ?? ""
}
var sortableDate: Date {
return logicalDatePublished
}
var sortableArticleID: String {
return articleID
}
var sortableFeedID: String {
return feedID
}
}