Swift UI Wrapper for RevenueCat's Swift Paywall

SwiftUIPaywall.swift

//
//  SwiftUIPaywall.swift
//  PhotoText
//
//  Created by Ozgur Sahin on 8/27/20.
//  Copyright © 2020 com.ozgur. All rights reserved.
//

import SwiftUI
import Purchases

public struct SwiftUIPaywall: UIViewControllerRepresentable {
    
    private let purchaseCompleted: (_ paywall: SwiftPaywall, _ transaction: SKPaymentTransaction, _ purchaserInfo: Purchases.PurchaserInfo, _ package:Purchases.Package)-> Void
    
    private let purchaseFailed: (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error, _ userCancelled: Bool)->Void
    
    private let purchaseRestored: (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error?)->Void
    
    
    @Environment(\.presentationMode) private var presentationMode
    
    init(purchaseCompleted: @escaping (_ paywall: SwiftPaywall, _ transaction: SKPaymentTransaction, _ purchaserInfo: Purchases.PurchaserInfo, _ package:Purchases.Package
        ) -> Void,
         purchaseFailed: @escaping (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error, _ userCancelled: Bool)->Void,
         purchaseRestored: @escaping (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error?)->Void
    ) {
        self.purchaseCompleted = purchaseCompleted
        self.purchaseFailed = purchaseFailed
        self.purchaseRestored = purchaseRestored
    }
    
    public func makeUIViewController(context: Context) -> UIViewController {
        //TODO: fix
        let picker = SwiftPaywall(
            termsOfServiceUrlString: "",
            privacyPolicyUrlString: "")
        
        picker.delegate = context.coordinator
        return picker
    }
    
    public func updateUIViewController(_ uiViewController: UIViewController, context: Context) {}
    
    public func makeCoordinator() -> Coordinator {
        Coordinator(
            
            purchaseCompleted: self.purchaseCompleted,
            purchaseFailed: self.purchaseFailed,
            purchaseRestored: self.purchaseRestored
        )
    }
    
    final public class Coordinator: NSObject, SwiftPaywallDelegate {
        
        private let _purchaseFailed: (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error, _ userCancelled: Bool)->Void

        private let _purchaseRestored: (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error?)->Void

        private let _purchaseCompleted: (_ paywall: SwiftPaywall, _ transaction: SKPaymentTransaction, _ purchaserInfo: Purchases.PurchaserInfo, _ package:Purchases.Package)-> Void
        
        func purchaseCompleted(paywall: SwiftPaywall, transaction: SKPaymentTransaction, purchaserInfo: Purchases.PurchaserInfo, package: Purchases.Package) {
            self._purchaseCompleted(paywall, transaction, purchaserInfo, package)
        }
        
        
        func purchaseFailed (paywall: SwiftPaywall,  purchaserInfo: Purchases.PurchaserInfo?,  error: Error,  userCancelled: Bool)
        {
            self._purchaseFailed(paywall, purchaserInfo, error, userCancelled)
        }
        
        func purchaseRestored ( paywall: SwiftPaywall,  purchaserInfo: Purchases.PurchaserInfo?,  error: Error?)
        {
            self._purchaseRestored(paywall, purchaserInfo, error)
        }
        
        
        
        
        init(
            purchaseCompleted: @escaping (_ paywall: SwiftPaywall, _ transaction: SKPaymentTransaction, _ purchaserInfo: Purchases.PurchaserInfo, _ package:Purchases.Package
            ) -> Void,
            purchaseFailed: @escaping (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error, _ userCancelled: Bool)->Void,
            purchaseRestored: @escaping (_ paywall: SwiftPaywall, _ purchaserInfo: Purchases.PurchaserInfo?, _ error: Error?)->Void
        ) {
            self._purchaseCompleted = purchaseCompleted
            self._purchaseFailed = purchaseFailed
            self._purchaseRestored = purchaseRestored
        }
    }
}

Usage sample

.sheet(isPresented: self.$imageSavedAlert) {
                            SwiftUIPaywall(
                                purchaseCompleted: {paywall, transaction, purchaserInfo, package  in
                                    
                            },
                                 purchaseFailed : {paywall,  purchaserInfo ,  error,  userCancelled in
                                                                print(userCancelled)
                            },
                                 purchaseRestored: {paywall,  purchaserInfo,  error  in
                                    

                        }
                                                         )
                    }