forked from zelo72/mastodon-ios
296 lines
12 KiB
Swift
296 lines
12 KiB
Swift
//
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// SettingsViewModel.swift
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// Mastodon
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//
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// Created by ihugo on 2021/4/7.
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//
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import Combine
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import CoreData
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import CoreDataStack
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import Foundation
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import MastodonSDK
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import UIKit
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import os.log
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class SettingsViewModel: NSObject, NeedsDependency {
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// confirm set only once
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weak var context: AppContext! { willSet { precondition(context == nil) } }
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weak var coordinator: SceneCoordinator! { willSet { precondition(coordinator == nil) } }
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var dataSource: UITableViewDiffableDataSource<SettingsSection, SettingsItem>!
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var disposeBag = Set<AnyCancellable>()
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let viewDidLoad = PassthroughSubject<Void, Never>()
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lazy var fetchResultsController: NSFetchedResultsController<Setting> = {
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let fetchRequest = Setting.sortedFetchRequest
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if let box =
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self.context.authenticationService.activeMastodonAuthenticationBox.value {
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let domain = box.domain
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fetchRequest.predicate = Setting.predicate(domain: domain)
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}
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fetchRequest.fetchLimit = 1
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fetchRequest.returnsObjectsAsFaults = false
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let controller = NSFetchedResultsController(
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fetchRequest: fetchRequest,
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managedObjectContext: context.managedObjectContext,
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sectionNameKeyPath: nil,
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cacheName: nil
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)
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controller.delegate = self
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return controller
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}()
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let setting = CurrentValueSubject<Setting?, Never>(nil)
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/// trigger when
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/// - init alerts
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/// - change subscription status everytime
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let alertUpdate = PassthroughSubject<(triggerBy: String, values: [Bool?]), Never>()
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lazy var notificationDefaultValue: [String: [Bool?]] = {
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let followerSwitchItems: [Bool?] = [true, nil, true, true]
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let anyoneSwitchItems: [Bool?] = [true, true, true, true]
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let noOneSwitchItems: [Bool?] = [nil, nil, nil, nil]
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let followSwitchItems: [Bool?] = [true, true, true, true]
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let anyone = L10n.Scene.Settings.Section.Notifications.Trigger.anyone
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let follower = L10n.Scene.Settings.Section.Notifications.Trigger.follower
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let follow = L10n.Scene.Settings.Section.Notifications.Trigger.follow
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let noOne = L10n.Scene.Settings.Section.Notifications.Trigger.noOne
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return [anyone: anyoneSwitchItems,
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follower: followerSwitchItems,
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follow: followSwitchItems,
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noOne: noOneSwitchItems]
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}()
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struct Input {
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}
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struct Output {
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}
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init(context: AppContext, coordinator: SceneCoordinator) {
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self.context = context
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self.coordinator = coordinator
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super.init()
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}
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func transform(input: Input?) -> Output? {
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//guard let input = input else { return nil }
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// build data for table view
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buildDataSource()
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// request subsription data for updating or initialization
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requestSubscription()
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typealias SubscriptionResponse = Mastodon.Response.Content<Mastodon.Entity.Subscription>
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alertUpdate
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.debounce(for: .milliseconds(300), scheduler: DispatchQueue.main)
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.flatMap { [weak self] (arg) -> AnyPublisher<SubscriptionResponse, Error> in
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let (triggerBy, values) = arg
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guard let self = self else {
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return Empty<SubscriptionResponse, Error>().eraseToAnyPublisher()
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}
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guard let activeMastodonAuthenticationBox =
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self.context.authenticationService.activeMastodonAuthenticationBox.value else {
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return Empty<SubscriptionResponse, Error>().eraseToAnyPublisher()
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}
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guard values.count >= 4 else {
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return Empty<SubscriptionResponse, Error>().eraseToAnyPublisher()
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}
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typealias Query = Mastodon.API.Notification.CreateSubscriptionQuery
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let domain = activeMastodonAuthenticationBox.domain
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return self.context.apiService.changeSubscription(
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domain: domain,
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mastodonAuthenticationBox: activeMastodonAuthenticationBox,
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query: Query(favourite: values[0], follow: values[1], reblog: values[2], mention: values[3], poll: nil),
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triggerBy: triggerBy)
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}
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.sink { _ in
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} receiveValue: { (subscription) in
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}
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.store(in: &disposeBag)
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do {
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try fetchResultsController.performFetch()
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setting.value = fetchResultsController.fetchedObjects?.first
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} catch {
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assertionFailure(error.localizedDescription)
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}
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return nil
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}
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// MARK: - Private methods
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fileprivate func processDataSource(_ settings: Setting?) {
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var snapshot = NSDiffableDataSourceSnapshot<SettingsSection, SettingsItem>()
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// appearance
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let appearnceMode = SettingsItem.AppearanceMode(rawValue: settings?.appearance ?? "") ?? .automatic
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let appearanceItem = SettingsItem.apperance(item: appearnceMode)
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let appearance = SettingsSection.apperance(title: L10n.Scene.Settings.Section.Appearance.title, selectedMode:appearanceItem)
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snapshot.appendSections([appearance])
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snapshot.appendItems([appearanceItem])
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// notifications
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var switches: [Bool?]?
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if let alerts = settings?.subscription?.first(where: { (s) -> Bool in
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return s.type == settings?.triggerBy
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})?.alert {
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var items = [Bool?]()
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items.append(alerts.favourite)
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items.append(alerts.follow)
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items.append(alerts.reblog)
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items.append(alerts.mention)
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switches = items
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} else if let triggerBy = settings?.triggerBy,
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let values = self.notificationDefaultValue[triggerBy] {
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switches = values
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self.alertUpdate.send((triggerBy: triggerBy, values: values))
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} else {
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// fallback a default value
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let anyone = L10n.Scene.Settings.Section.Notifications.Trigger.anyone
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switches = self.notificationDefaultValue[anyone]
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}
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let notifications = [L10n.Scene.Settings.Section.Notifications.favorites,
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L10n.Scene.Settings.Section.Notifications.follows,
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L10n.Scene.Settings.Section.Notifications.boosts,
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L10n.Scene.Settings.Section.Notifications.mentions,]
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var notificationItems = [SettingsItem]()
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for (i, noti) in notifications.enumerated() {
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var value: Bool? = nil
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if let switches = switches, i < switches.count {
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value = switches[i]
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}
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let item = SettingsItem.notification(item: SettingsItem.NotificationSwitch(title: noti, isOn: value == true, enable: value != nil))
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notificationItems.append(item)
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}
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let notificationSection = SettingsSection.notifications(title: L10n.Scene.Settings.Section.Notifications.title, items: notificationItems)
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snapshot.appendSections([notificationSection])
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snapshot.appendItems(notificationItems)
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// boring zone
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let boringLinks = [L10n.Scene.Settings.Section.BoringZone.terms,
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L10n.Scene.Settings.Section.BoringZone.privacy]
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var boringLinkItems = [SettingsItem]()
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for l in boringLinks {
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// FIXME: update color in both light and dark mode
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let item = SettingsItem.boringZone(item: SettingsItem.Link(title: l, color: .systemBlue))
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boringLinkItems.append(item)
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}
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let boringSection = SettingsSection.boringZone(title: L10n.Scene.Settings.Section.BoringZone.title, items: boringLinkItems)
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snapshot.appendSections([boringSection])
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snapshot.appendItems(boringLinkItems)
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// spicy zone
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let spicyLinks = [L10n.Scene.Settings.Section.SpicyZone.clear,
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L10n.Scene.Settings.Section.SpicyZone.signOut]
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var spicyLinkItems = [SettingsItem]()
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for l in spicyLinks {
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// FIXME: update color in both light and dark mode
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let item = SettingsItem.boringZone(item: SettingsItem.Link(title: l, color: .systemRed))
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spicyLinkItems.append(item)
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}
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let spicySection = SettingsSection.boringZone(title: L10n.Scene.Settings.Section.SpicyZone.title, items: spicyLinkItems)
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snapshot.appendSections([spicySection])
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snapshot.appendItems(spicyLinkItems)
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self.dataSource.apply(snapshot, animatingDifferences: false)
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}
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private func buildDataSource() {
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setting.filter({ $0 != nil }).sink { [weak self] (settings) in
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guard let self = self else { return }
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self.processDataSource(settings)
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}
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.store(in: &disposeBag)
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// init with no subscription for notification
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let settings: Setting? = nil
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self.processDataSource(settings)
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}
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private func requestSubscription() {
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// request subscription of notifications
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typealias SubscriptionResponse = Mastodon.Response.Content<Mastodon.Entity.Subscription>
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viewDidLoad.flatMap { [weak self] (_) -> AnyPublisher<SubscriptionResponse, Error> in
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guard let self = self,
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let activeMastodonAuthenticationBox =
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self.context.authenticationService.activeMastodonAuthenticationBox.value else {
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return Empty<SubscriptionResponse, Error>().eraseToAnyPublisher()
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}
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let domain = activeMastodonAuthenticationBox.domain
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return self.context.apiService.subscription(
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domain: domain,
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mastodonAuthenticationBox: activeMastodonAuthenticationBox)
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}
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.sink { _ in
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} receiveValue: { (subscription) in
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}
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.store(in: &disposeBag)
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}
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}
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// MARK: - NSFetchedResultsControllerDelegate
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extension SettingsViewModel: NSFetchedResultsControllerDelegate {
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func controllerWillChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
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os_log("%{public}s[%{public}ld], %{public}s", ((#file as NSString).lastPathComponent), #line, #function)
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}
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func controllerDidChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
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guard controller === fetchResultsController else {
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return
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}
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setting.value = fetchResultsController.fetchedObjects?.first
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}
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}
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enum SettingsSection: Hashable {
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case apperance(title: String, selectedMode: SettingsItem)
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case notifications(title: String, items: [SettingsItem])
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case boringZone(title: String, items: [SettingsItem])
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case spicyZone(tilte: String, items: [SettingsItem])
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var title: String {
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switch self {
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case .apperance(let title, _),
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.notifications(let title, _),
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.boringZone(let title, _),
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.spicyZone(let title, _):
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return title
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}
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}
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}
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enum SettingsItem: Hashable {
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enum AppearanceMode: String {
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case automatic
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case light
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case dark
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}
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struct NotificationSwitch: Hashable {
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let title: String
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let isOn: Bool
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let enable: Bool
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}
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struct Link: Hashable {
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let title: String
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let color: UIColor
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}
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case apperance(item: AppearanceMode)
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case notification(item: NotificationSwitch)
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case boringZone(item: Link)
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case spicyZone(item: Link)
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}
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