Old AnalyticsProService.swift

AnalyticsProService.swift

//
//  AnalyticsProService.swift
//  Command
//
//  Created by Zachary Shakked on 1/12/17.
//  Copyright © 2017 Shakd, LLC. All rights reserved.
//

import UIKit
import SwiftyJSON

class AnalyticsProService {
    
    static let shared = AnalyticsProService()
    
    fileprivate var isSubscribed: Bool? = nil
    var hasValidSubscription: Bool {
//        return true
        return isSubscribed ?? false
    }
    
    fileprivate var sharedSecret: String {
        let path = Bundle.main.path(forResource: "Keys", ofType: "plist")!
        let keys = NSDictionary(contentsOfFile: path)!  
        let sharedSecret = keys["iTunesSharedSecret"] as! String
        return sharedSecret
    }
    
    func checkSubscriptionStatus(completion: @escaping (Bool, Bool?) -> ()) {
        
        guard let receiptURL = Bundle.main.appStoreReceiptURL else {
            self.isSubscribed = false
            completion(true, false)
            return
        }
        
        guard let receiptData = try? Data(contentsOf: receiptURL) else {
            //No Local Receipt
            self.isSubscribed = false
            completion(true, false)
            return
        }
        
        let requestContents = [
            "receipt-data": receiptData.base64EncodedString(),
            "password": sharedSecret,
        ]
        
        guard let requestData = try? JSONSerialization.data(withJSONObject: requestContents, options: .prettyPrinted) else {
            completion(false, false)
            return
        }
        
        #if DEBUG
            let storeURL = URL(string: "https://sandbox.itunes.apple.com/verifyReceipt")!
        #else
            let storeURL = URL(string: "https://buy.itunes.apple.com/verifyReceipt")!
        #endif

        var storeRequest = try! URLRequest(url: storeURL, method: .post)
        storeRequest.httpBody = requestData
        let urlSession = URLSession(configuration: .default)
        let task = urlSession.dataTask(with: storeRequest) { (data: Data?, response: URLResponse?, error: Error?) in
            guard let data = data, let dataObject = try? JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions.mutableContainers) else {
                completion(false, nil)
                return
            }
            
            let repsonseDictionary = dataObject as! NSDictionary
            let json = JSON(repsonseDictionary)
            guard let receipts = json["latest_receipt_info"].array else {
                completion(false, false)
                return
            }
            
            let formatter = DateFormatter()
            formatter.dateStyle = .short
            formatter.timeStyle = .short
            
            var mostRecentExpirationDate: Date? = nil
            
            for receipt in receipts {
                let expires_date_ms = receipt["expires_date_ms"].doubleValue
                let expirationDate = Date(timeIntervalSince1970: expires_date_ms)
//                print("now: \(formatter.string(from: Date())) < expDate: \(formatter.string(from: expirationDate)) ? \(Date() < expirationDate)")
                if Date() < expirationDate  {
                    mostRecentExpirationDate = expirationDate
                    self.isSubscribed = true
                }
            }
            
            
            if let mostRecentExpirationDate = mostRecentExpirationDate {
                print("Subscription Expiration Date: \(formatter.string(from: mostRecentExpirationDate)) -- currentDate \(formatter.string(from: Date())) -- isSubscribed: \(self.hasValidSubscription)")
            } else {
                print("Subscription Expiration Date: nil -- currentDate \(formatter.string(from: Date())) -- isSubscribed: \(self.hasValidSubscription)")
            }
        }
        task.resume()
        
    }
    
}