mirror of
https://github.com/Ranchero-Software/NetNewsWire.git
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198 lines
5.7 KiB
Swift
198 lines
5.7 KiB
Swift
//
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// LocalAccountDelegate.swift
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// NetNewsWire
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//
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// Created by Brent Simmons on 9/16/17.
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// Copyright © 2017 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import RSCore
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import RSParser
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import Articles
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import RSWeb
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public enum LocalAccountDelegateError: String, Error {
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case invalidParameter = "An invalid parameter was used."
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}
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final class LocalAccountDelegate: AccountDelegate {
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let isSubfoldersSupported = false
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let isTagBasedSystem = false
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let isOPMLImportSupported = true
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let isOPMLImportInProgress = false
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let server: String? = nil
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var credentials: Credentials?
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var accountMetadata: AccountMetadata?
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private let refresher = LocalAccountRefresher()
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var refreshProgress: DownloadProgress {
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return refresher.progress
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}
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// LocalAccountDelegate doesn't wait for completion before calling the completion block
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func refreshAll(for account: Account, completion: @escaping (Result<Void, Error>) -> Void) {
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refresher.refreshFeeds(account.flattenedFeeds())
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completion(.success(()))
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}
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func sendArticleStatus(for account: Account, completion: @escaping (() -> Void)) {
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completion()
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}
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func refreshArticleStatus(for account: Account, completion: @escaping (() -> Void)) {
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completion()
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}
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func importOPML(for account:Account, opmlFile: URL, completion: @escaping (Result<Void, Error>) -> Void) {
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var fileData: Data?
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do {
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fileData = try Data(contentsOf: opmlFile)
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} catch {
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completion(.failure(error))
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return
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}
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guard let opmlData = fileData else {
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completion(.success(()))
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return
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}
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let parserData = ParserData(url: opmlFile.absoluteString, data: opmlData)
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var opmlDocument: RSOPMLDocument?
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do {
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opmlDocument = try RSOPMLParser.parseOPML(with: parserData)
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} catch {
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completion(.failure(error))
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return
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}
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guard let loadDocument = opmlDocument else {
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completion(.success(()))
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return
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}
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// We use the same mechanism to load local accounts as we do to load the subscription
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// OPML all accounts.
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BatchUpdate.shared.perform {
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account.loadOPML(loadDocument)
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}
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completion(.success(()))
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}
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func createFeed(for account: Account, url urlString: String, name: String?, container: Container, completion: @escaping (Result<Feed, Error>) -> Void) {
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guard let url = URL(string: urlString) else {
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completion(.failure(LocalAccountDelegateError.invalidParameter))
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return
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}
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refreshProgress.addToNumberOfTasksAndRemaining(1)
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FeedFinder.find(url: url) { result in
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switch result {
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case .success(let feedSpecifiers):
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guard let bestFeedSpecifier = FeedSpecifier.bestFeed(in: feedSpecifiers),
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let url = URL(string: bestFeedSpecifier.urlString) else {
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self.refreshProgress.completeTask()
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completion(.failure(AccountError.createErrorNotFound))
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return
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}
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if account.hasFeed(withURL: bestFeedSpecifier.urlString) {
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self.refreshProgress.completeTask()
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completion(.failure(AccountError.createErrorAlreadySubscribed))
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return
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}
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let feed = account.createFeed(with: nil, url: url.absoluteString, feedID: url.absoluteString, homePageURL: nil)
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InitialFeedDownloader.download(url) { parsedFeed in
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self.refreshProgress.completeTask()
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if let parsedFeed = parsedFeed {
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account.update(feed, with: parsedFeed, {})
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}
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feed.editedName = name
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container.addFeed(feed)
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completion(.success(feed))
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}
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case .failure:
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self.refreshProgress.completeTask()
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completion(.failure(AccountError.createErrorNotFound))
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}
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}
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}
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func renameFeed(for account: Account, with feed: Feed, to name: String, completion: @escaping (Result<Void, Error>) -> Void) {
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feed.editedName = name
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completion(.success(()))
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}
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func removeFeed(for account: Account, with feed: Feed, from container: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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container.removeFeed(feed)
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completion(.success(()))
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}
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func moveFeed(for account: Account, with feed: Feed, from: Container, to: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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from.removeFeed(feed)
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to.addFeed(feed)
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completion(.success(()))
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}
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func addFeed(for account: Account, with feed: Feed, to container: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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container.addFeed(feed)
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completion(.success(()))
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}
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func restoreFeed(for account: Account, feed: Feed, container: Container, completion: @escaping (Result<Void, Error>) -> Void) {
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container.addFeed(feed)
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completion(.success(()))
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}
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func addFolder(for account: Account, name: String, completion: @escaping (Result<Folder, Error>) -> Void) {
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if let folder = account.ensureFolder(with: name) {
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completion(.success(folder))
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} else {
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completion(.failure(FeedbinAccountDelegateError.invalidParameter))
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}
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}
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func renameFolder(for account: Account, with folder: Folder, to name: String, completion: @escaping (Result<Void, Error>) -> Void) {
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folder.name = name
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completion(.success(()))
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}
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func removeFolder(for account: Account, with folder: Folder, completion: @escaping (Result<Void, Error>) -> Void) {
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account.removeFolder(folder)
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completion(.success(()))
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}
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func restoreFolder(for account: Account, folder: Folder, completion: @escaping (Result<Void, Error>) -> Void) {
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account.addFolder(folder)
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completion(.success(()))
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}
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func markArticles(for account: Account, articles: Set<Article>, statusKey: ArticleStatus.Key, flag: Bool) -> Set<Article>? {
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return account.update(articles, statusKey: statusKey, flag: flag)
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}
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func accountDidInitialize(_ account: Account) {
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}
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static func validateCredentials(transport: Transport, credentials: Credentials, endpoint: URL? = nil, completion: (Result<Credentials?, Error>) -> Void) {
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return completion(.success(nil))
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}
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}
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