2015-08-21 13:02:36 +00:00
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//
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// Downloader.swift
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// mas-cli
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//
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// Created by Andrew Naylor on 21/08/2015.
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// Copyright (c) 2015 Andrew Naylor. All rights reserved.
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//
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2018-10-14 19:41:19 +00:00
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import CommerceKit
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import StoreFoundation
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2019-01-12 01:06:02 +00:00
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/// Monitors app download progress.
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///
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/// - Parameter adamId: An app ID?
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/// - Returns: An error, if one occurred.
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2016-09-17 12:58:38 +00:00
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func download(_ adamId: UInt64) -> MASError? {
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2016-02-14 01:24:30 +00:00
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guard let account = ISStoreAccount.primaryAccount else {
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2016-09-25 21:13:23 +00:00
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return .notSignedIn
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2016-02-14 01:24:30 +00:00
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}
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2019-01-12 01:06:02 +00:00
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guard let storeAccount = account as? ISStoreAccount
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2019-01-30 06:15:24 +00:00
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else { fatalError("Unable to cast StoreAccount to ISStoreAccount") }
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2019-01-12 01:06:02 +00:00
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let purchase = SSPurchase(adamId: adamId, account: storeAccount)
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2016-02-14 01:24:30 +00:00
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var purchaseError: MASError?
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2019-01-12 01:06:02 +00:00
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var observerIdentifier: CKDownloadQueueObserver?
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let group = DispatchGroup()
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2016-09-17 12:58:38 +00:00
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group.enter()
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purchase.perform { purchase, _, error, response in
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2016-02-14 01:24:30 +00:00
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if let error = error {
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2016-09-25 21:13:23 +00:00
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purchaseError = .purchaseFailed(error: error as NSError?)
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2016-09-17 12:58:38 +00:00
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group.leave()
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2016-02-14 01:24:30 +00:00
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return
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}
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2019-01-12 01:06:02 +00:00
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2016-09-17 12:58:38 +00:00
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if let downloads = response?.downloads, downloads.count > 0, let purchase = purchase {
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2016-02-14 01:24:30 +00:00
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let observer = PurchaseDownloadObserver(purchase: purchase)
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2016-09-06 13:37:12 +00:00
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2016-02-14 01:24:30 +00:00
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observer.errorHandler = { error in
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purchaseError = error
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2016-09-17 12:58:38 +00:00
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group.leave()
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2015-09-03 23:13:47 +00:00
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}
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2019-01-12 01:06:02 +00:00
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2016-02-14 01:24:30 +00:00
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observer.completionHandler = {
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2016-09-17 12:58:38 +00:00
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group.leave()
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2015-08-24 18:45:54 +00:00
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}
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2016-09-06 13:37:12 +00:00
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2016-09-17 12:58:38 +00:00
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let downloadQueue = CKDownloadQueue.shared()
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2018-04-06 03:29:15 +00:00
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observerIdentifier = downloadQueue.add(observer)
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2019-01-12 01:06:02 +00:00
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} else {
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2016-02-14 01:24:30 +00:00
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print("No downloads")
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2016-09-25 21:13:23 +00:00
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purchaseError = .noDownloads
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2016-09-17 12:58:38 +00:00
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group.leave()
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2015-08-24 18:45:54 +00:00
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}
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}
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2019-01-12 01:06:02 +00:00
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_ = group.wait(timeout: .distantFuture)
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2016-09-06 13:37:12 +00:00
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if let observerIdentifier = observerIdentifier {
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2018-04-06 03:29:15 +00:00
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CKDownloadQueue.shared().remove(observerIdentifier)
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2016-09-06 13:37:12 +00:00
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}
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2016-02-14 01:24:30 +00:00
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return purchaseError
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2015-08-24 18:45:54 +00:00
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}
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