66 lines
2.1 KiB
Swift
66 lines
2.1 KiB
Swift
//
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// SavedHashtagsManager.swift
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// Tusker
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//
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// Created by Shadowfacts on 12/19/19.
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// Copyright © 2019 Shadowfacts. All rights reserved.
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//
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import Foundation
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import Pachyderm
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class SavedHashtagsManager: Codable {
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private(set) static var shared: SavedHashtagsManager = load()
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private static var documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
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private static var archiveURL = SavedHashtagsManager.documentsDirectory.appendingPathComponent("saved_hashtags").appendingPathExtension("plist")
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static func save() {
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DispatchQueue.global(qos: .utility).async {
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let encoder = PropertyListEncoder()
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let data = try? encoder.encode(shared)
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try? data?.write(to: archiveURL, options: .noFileProtection)
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}
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}
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static func load() -> SavedHashtagsManager {
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let decoder = PropertyListDecoder()
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if let data = try? Data(contentsOf: archiveURL),
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let savedHashtagsManager = try? decoder.decode(Self.self, from: data) {
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return savedHashtagsManager
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}
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return SavedHashtagsManager()
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}
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private init() {}
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private var savedHashtags: [Hashtag] = []
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var sorted: [Hashtag] {
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return savedHashtags.sorted(by: { $0.name < $1.name })
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}
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func isSaved(_ hashtag: Hashtag) -> Bool {
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return savedHashtags.contains(hashtag)
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}
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func add(_ hashtag: Hashtag) {
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if isSaved(hashtag) {
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return
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}
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savedHashtags.append(hashtag)
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SavedHashtagsManager.save()
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NotificationCenter.default.post(name: .savedHashtagsChanged, object: nil)
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}
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func remove(_ hashtag: Hashtag) {
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guard isSaved(hashtag) else { return }
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savedHashtags.removeAll(where: { $0.name == hashtag.name })
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SavedHashtagsManager.save()
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NotificationCenter.default.post(name: .savedHashtagsChanged, object: nil)
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}
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}
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extension Foundation.Notification.Name {
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static let savedHashtagsChanged = Notification.Name("savedHashtagsChanged")
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}
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