//
//  AppDelegate.swift
//  SwiftyStoreKit
//
//  Created by Andrea Bizzotto on 03/09/2015.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import UIKit
import SwiftyStoreKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool {

        setupIAP()

        return true
    }

    func setupIAP() {

        SwiftyStoreKit.completeTransactions(atomically: true) { purchases in

            for purchase in purchases {
                switch purchase.transaction.transactionState {
                case .purchased, .restored:
                    let downloads = purchase.transaction.downloads
                    if !downloads.isEmpty {
                        SwiftyStoreKit.start(downloads)
                    } else if purchase.needsFinishTransaction {
                        // Deliver content from server, then:
                        SwiftyStoreKit.finishTransaction(purchase.transaction)
                    }
                    print("\(purchase.transaction.transactionState.debugDescription): \(purchase.productId)")
                case .failed, .purchasing, .deferred:
                    break // do nothing
                @unknown default:
                    break // do nothing
                }
            }
        }
        
        SwiftyStoreKit.updatedDownloadsHandler = { downloads in

            // contentURL is not nil if downloadState == .finished
            let contentURLs = downloads.compactMap { $0.contentURL }
            if contentURLs.count == downloads.count {
                print("Saving: \(contentURLs)")
                SwiftyStoreKit.finishTransaction(downloads[0].transaction)
            }
        }
    }
}
