88 lines
2.3 KiB
Swift
88 lines
2.3 KiB
Swift
//
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// SyncManager.swift
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// Delta
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//
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// Created by Riley Testut on 11/12/18.
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// Copyright © 2018 Riley Testut. All rights reserved.
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//
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import Harmony
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import Harmony_Drive
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final class SyncManager
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{
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static let shared = SyncManager()
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var service: Service {
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return self.syncCoordinator.service
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}
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private(set) var isAuthenticated = false
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private let syncCoordinator = SyncCoordinator(service: DriveService.shared, persistentContainer: DatabaseManager.shared)
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private init()
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{
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DriveService.shared.clientID = "457607414709-5puj6lcv779gpu3ql43e6k3smjj40dmu.apps.googleusercontent.com"
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}
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}
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extension SyncManager
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{
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func start(completionHandler: @escaping (Error?) -> Void)
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{
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self.syncCoordinator.start { (result) in
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do
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{
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_ = try result.verify()
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self.syncCoordinator.service.authenticateInBackground { (result) in
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do
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{
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_ = try result.verify()
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self.isAuthenticated = true
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}
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catch let error as AuthenticationError where error.code == .noSavedCredentials
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{
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// Ignore
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}
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catch
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{
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return completionHandler(error)
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}
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completionHandler(nil)
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}
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}
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catch
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{
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completionHandler(error)
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}
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}
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}
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func authenticate(presentingViewController: UIViewController, completionHandler: @escaping (Error?) -> Void)
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{
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guard !self.isAuthenticated else { return completionHandler(nil) }
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self.service.authenticate(withPresentingViewController: presentingViewController) { (result) in
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switch result
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{
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case .success:
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self.isAuthenticated = true
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completionHandler(nil)
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case .failure(let error): completionHandler(error)
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}
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}
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}
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func sync()
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{
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guard self.isAuthenticated else { return }
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self.syncCoordinator.sync()
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}
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}
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