From 9ec7023ac30de7a2daf542a857a21aef92e6ff65 Mon Sep 17 00:00:00 2001
From: Nemi Shah <nemishah1212@gmail.com>
Date: Tue, 21 Nov 2023 15:00:13 +0530
Subject: [PATCH] Add apple login to example app (#59)

---
 .../LoginScreenViewController.swift           | 68 ++++++++++++++++++-
 .../with-thirdparty/LoginScreen/LoginView.xib | 10 +++
 .../with-thirdparty.entitlements              | 10 +++
 3 files changed, 87 insertions(+), 1 deletion(-)
 create mode 100644 examples/with-thirdparty/with-thirdparty/with-thirdparty.entitlements

diff --git a/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginScreenViewController.swift b/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginScreenViewController.swift
index 8b5acad..21f65f0 100644
--- a/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginScreenViewController.swift
+++ b/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginScreenViewController.swift
@@ -8,8 +8,10 @@
 import UIKit
 import GoogleSignIn
 import AppAuth
+import AuthenticationServices
 
-class LoginScreenViewController: UIViewController {
+class LoginScreenViewController: UIViewController, ASAuthorizationControllerDelegate, ASAuthorizationControllerPresentationContextProviding {
+    
     override func viewDidLoad() {
         super.viewDidLoad()
     }
@@ -120,4 +122,68 @@ class LoginScreenViewController: UIViewController {
             }
         })
     }
+    
+    func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
+        return self.view.window!
+
+    }
+    
+    @IBAction func onAppleClicked() {
+        let appleIDProvider = ASAuthorizationAppleIDProvider()
+        let request = appleIDProvider.createRequest()
+        request.requestedScopes = [.email]
+        
+        let authorizationController = ASAuthorizationController(authorizationRequests: [request])
+        authorizationController.delegate = self
+        authorizationController.presentationContextProvider = self
+        authorizationController.performRequests()
+    }
+    
+    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
+        guard case let appleIDCredential as ASAuthorizationAppleIDCredential = authorization.credential, let authCodeResponse: Data = appleIDCredential.authorizationCode else {
+            print("Apple returned an unexpected response")
+            return
+        }
+        
+        let authCode = String(decoding: authCodeResponse, as: UTF8.self)
+        
+        let url = URL(string: Constants.apiDomain + "/auth/signinup")
+        var request = URLRequest(url: url!)
+        request.httpMethod = "POST"
+        
+        let data = try! JSONSerialization.data(withJSONObject: [
+            "thirdPartyId": "apple",
+            "redirectURIInfo": [
+                // For native flows we do not have a redirect uri
+                "redirectURIOnProviderDashboard": "",
+                "redirectURIQueryParams": [
+                    "code": authCode
+                ],
+            ],
+        ])
+        request.httpBody = data
+        request.setValue("Application/json", forHTTPHeaderField: "Content-Type")
+        
+        URLSession.shared.dataTask(with: request) {
+            data, response, error in
+            
+            if error != nil {
+                print("Apple login failed: \(error!.localizedDescription)")
+            }
+            
+            if let _response: URLResponse = response, let httpResponse: HTTPURLResponse = _response as? HTTPURLResponse {
+                if httpResponse.statusCode == 200 {
+                    DispatchQueue.main.async { [weak self] in
+                        self?.navigationController?.pushViewController(HomeScreenViewController(nibName: "HomeView", bundle: nil), animated: true)
+                    }
+                } else {
+                    print("SuperTokens API failed with code: \(httpResponse.statusCode)")
+                }
+            }
+        }.resume()
+    }
+    
+    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
+        print("Apple login failed: \(error.localizedDescription)")
+    }
 }
diff --git a/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginView.xib b/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginView.xib
index 2f4ef4d..5501752 100644
--- a/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginView.xib
+++ b/examples/with-thirdparty/with-thirdparty/LoginScreen/LoginView.xib
@@ -35,6 +35,14 @@
                         <action selector="onGithubClicked" destination="-1" eventType="touchUpInside" id="Kqd-7T-jGw"/>
                     </connections>
                 </button>
+                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="system" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="H2q-wu-yPk">
+                    <rect key="frame" x="108.00000000000001" y="482" width="177.33333333333337" height="35"/>
+                    <state key="normal" title="Button"/>
+                    <buttonConfiguration key="configuration" style="filled" title="Continue with Apple"/>
+                    <connections>
+                        <action selector="onAppleClicked" destination="-1" eventType="touchUpInside" id="6nF-x7-jcV"/>
+                    </connections>
+                </button>
             </subviews>
             <viewLayoutGuide key="safeArea" id="vUN-kp-3ea"/>
             <color key="backgroundColor" systemColor="systemBackgroundColor"/>
@@ -43,6 +51,8 @@
                 <constraint firstItem="JQl-ue-ADz" firstAttribute="top" secondItem="kNW-UC-IRU" secondAttribute="bottom" constant="12" id="Mbw-RY-D2T"/>
                 <constraint firstItem="kNW-UC-IRU" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="centerY" constant="-20" id="ayv-ki-YVU"/>
                 <constraint firstItem="kNW-UC-IRU" firstAttribute="centerX" secondItem="iN0-l3-epB" secondAttribute="centerX" id="uAk-MN-rb7"/>
+                <constraint firstItem="H2q-wu-yPk" firstAttribute="centerX" secondItem="iN0-l3-epB" secondAttribute="centerX" id="una-Ps-vEM"/>
+                <constraint firstItem="H2q-wu-yPk" firstAttribute="top" secondItem="JQl-ue-ADz" secondAttribute="bottom" constant="12" id="xpV-aq-NuZ"/>
             </constraints>
             <point key="canvasLocation" x="41" y="21"/>
         </view>
diff --git a/examples/with-thirdparty/with-thirdparty/with-thirdparty.entitlements b/examples/with-thirdparty/with-thirdparty/with-thirdparty.entitlements
new file mode 100644
index 0000000..a812db5
--- /dev/null
+++ b/examples/with-thirdparty/with-thirdparty/with-thirdparty.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.applesignin</key>
+	<array>
+		<string>Default</string>
+	</array>
+</dict>
+</plist>