65 lines
1.7 KiB
Swift
65 lines
1.7 KiB
Swift
//
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// FeedlySetStarredArticlesOperation.swift
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// Account
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//
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// Created by Kiel Gillard on 14/10/19.
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// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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import os.log
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protocol FeedlyStarredEntryIdProviding {
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var entryIds: Set<String> { get }
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}
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/// Single responsibility is to associate a starred status for ingested and remote
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/// articles identfied by the provided identifiers *for the entire account.*
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final class FeedlySetStarredArticlesOperation: FeedlyOperation {
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private let account: Account
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private let allStarredEntryIdsProvider: FeedlyStarredEntryIdProviding
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private let log: OSLog
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init(account: Account, allStarredEntryIdsProvider: FeedlyStarredEntryIdProviding, log: OSLog) {
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self.account = account
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self.allStarredEntryIdsProvider = allStarredEntryIdsProvider
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self.log = log
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}
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override func main() {
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guard !isCancelled else {
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didFinish()
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return
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}
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account.fetchStarredArticleIDs { (articleIDsResult) in
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if let localStarredArticleIDs = try? articleIDsResult.get() {
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self.processStarredArticleIDs(localStarredArticleIDs)
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}
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else {
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self.didFinish()
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}
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}
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}
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}
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private extension FeedlySetStarredArticlesOperation {
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func processStarredArticleIDs(_ localStarredArticleIDs: Set<String>) {
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guard !isCancelled else {
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didFinish()
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return
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}
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// Mark as starred
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let remoteStarredArticleIDs = allStarredEntryIdsProvider.entryIds
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account.mark(articleIDs: remoteStarredArticleIDs, statusKey: .starred, flag: true)
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// Mark as unstarred
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let deltaUnstarredArticleIDs = localStarredArticleIDs.subtracting(remoteStarredArticleIDs)
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account.mark(articleIDs: deltaUnstarredArticleIDs, statusKey: .starred, flag: false)
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didFinish()
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}
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}
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