95 lines
2.4 KiB
Swift
95 lines
2.4 KiB
Swift
//
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// LocalArticleCache.swift
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// Rainier
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//
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// Created by Brent Simmons on 5/9/16.
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// Copyright © 2016 Ranchero Software, LLC. All rights reserved.
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//
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import Foundation
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final class LocalArticleCache {
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private var cachedArticles: NSMapTable<NSString, LocalArticle> = NSMapTable.weakToWeakObjects()
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// private var cachedArticles = [String: LocalArticle]()
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// fileprivate var articlesByFeedID = [String: Set<LocalArticle>]()
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private let statusesManager: LocalStatusesManager
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init(statusesManager: LocalStatusesManager) {
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self.statusesManager = statusesManager
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}
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func uniquedArticles(_ fetchedArticles: Set<LocalArticle>) -> Set<LocalArticle> {
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var articles = Set<LocalArticle>()
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for oneArticle in fetchedArticles {
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assert(oneArticle.status != nil)
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if let existingArticle = cachedArticle(oneArticle.articleID) {
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articles.insert(existingArticle)
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}
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else {
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cacheArticle(oneArticle)
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articles.insert(oneArticle)
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}
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}
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statusesManager.attachCachedUniqueStatuses(articles)
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return articles
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}
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func cachedArticle(_ articleID: String) -> LocalArticle? {
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return cachedArticles.object(forKey: articleID as NSString)
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// return cachedArticles[articleID]
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}
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func cacheArticle(_ article: LocalArticle) {
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cachedArticles.setObject(article, forKey: article.articleID as NSString)
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// cachedArticles[article.articleID] = article
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// addToCachedArticlesForFeedID(Set([article]))
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}
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func cacheArticles(_ articles: Set<LocalArticle>) {
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articles.forEach { cacheArticle($0) }
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// addToCachedArticlesForFeedID(articles)
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}
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// func cachedArticlesForFeedID(_ feedID: String) -> Set<LocalArticle>? {
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//
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// return articlesByFeedID[feedID]
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// }
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}
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//private extension LocalArticleCache {
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//
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// func addToCachedArticlesForFeedID(_ feedID: String, _ articles: Set<LocalArticle>) {
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//
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// if let cachedArticles = cachedArticlesForFeedID(feedID) {
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// replaceCachedArticlesForFeedID(feedID, cachedArticles.union(articles))
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// }
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// else {
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// replaceCachedArticlesForFeedID(feedID, articles)
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// }
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// }
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//
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// func addToCachedArticlesForFeedID(_ articles: Set<LocalArticle>) {
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//
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// for oneArticle in articles {
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// addToCachedArticlesForFeedID(oneArticle.feedID, Set([oneArticle]))
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// }
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// }
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//
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// func replaceCachedArticlesForFeedID(_ feedID: String, _ articles: Set<LocalArticle>) {
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//
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// articlesByFeedID[feedID] = articles
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// }
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//
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//}
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