71 lines
2.4 KiB
Swift
71 lines
2.4 KiB
Swift
//
|
|
// FeedlySetStarredArticlesOperation.swift
|
|
// Account
|
|
//
|
|
// Created by Kiel Gillard on 14/10/19.
|
|
// Copyright © 2019 Ranchero Software, LLC. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
import os.log
|
|
|
|
protocol FeedlyStarredEntryIdProviding {
|
|
var entryIds: Set<String> { get }
|
|
}
|
|
|
|
/// Single responsibility is to associate a starred status for ingested and remote
|
|
/// articles identfied by the provided identifiers *for the entire account.*
|
|
final class FeedlySetStarredArticlesOperation: FeedlyOperation {
|
|
private let account: Account
|
|
private let allStarredEntryIdsProvider: FeedlyStarredEntryIdProviding
|
|
private let log: OSLog
|
|
|
|
init(account: Account, allStarredEntryIdsProvider: FeedlyStarredEntryIdProviding, log: OSLog) {
|
|
self.account = account
|
|
self.allStarredEntryIdsProvider = allStarredEntryIdsProvider
|
|
self.log = log
|
|
}
|
|
|
|
override func main() {
|
|
guard !isCancelled else {
|
|
didFinish()
|
|
return
|
|
}
|
|
|
|
let group = DispatchGroup()
|
|
|
|
let remoteStarredArticleIds = allStarredEntryIdsProvider.entryIds
|
|
account.fetchStarredArticleIDs { localStarredArticleIDs in
|
|
// Mark articles as starred
|
|
let deltaStarredArticleIDs = remoteStarredArticleIds.subtracting(localStarredArticleIDs)
|
|
let markStarredArticles = self.account.fetchArticles(.articleIDs(deltaStarredArticleIDs))
|
|
self.account.update(markStarredArticles, statusKey: .starred, flag: true)
|
|
|
|
// Save any starred statuses for articles we haven't yet received
|
|
let markStarredArticleIDs = Set(markStarredArticles.map { $0.articleID })
|
|
let missingStarredArticleIDs = deltaStarredArticleIDs.subtracting(markStarredArticleIDs)
|
|
group.enter()
|
|
self.account.ensureStatuses(missingStarredArticleIDs, true, .starred, true) {
|
|
group.leave()
|
|
}
|
|
|
|
// Mark articles as unstarred
|
|
let deltaUnstarredArticleIDs = localStarredArticleIDs.subtracting(remoteStarredArticleIds)
|
|
let markUnstarredArticles = self.account.fetchArticles(.articleIDs(deltaUnstarredArticleIDs))
|
|
self.account.update(markUnstarredArticles, statusKey: .starred, flag: false)
|
|
|
|
// Save any unstarred statuses for articles we haven't yet received
|
|
let markUnstarredArticleIDs = Set(markUnstarredArticles.map { $0.articleID })
|
|
let missingUnstarredArticleIDs = deltaUnstarredArticleIDs.subtracting(markUnstarredArticleIDs)
|
|
group.enter()
|
|
self.account.ensureStatuses(missingUnstarredArticleIDs, true, .starred, false) {
|
|
group.leave()
|
|
}
|
|
|
|
group.notify(queue: .main) {
|
|
self.didFinish()
|
|
}
|
|
}
|
|
}
|
|
}
|