Merge branch 'main' into convert-3ds-viewcontroller

# Conflicts:
#	Demo/Demo.xcodeproj/project.pbxproj

Demo/Application/Base/Base View Controllers/BraintreeDemoPaymentButtonBaseViewController.m

@@ -26,7 +26,7 @@ - (void)viewDidLoad {
         [self.paymentButton.leadingAnchor constraintEqualToAnchor:self.view.leadingAnchor],
         [self.paymentButton.trailingAnchor constraintEqualToAnchor:self.view.trailingAnchor],
         [self.paymentButton.centerYAnchor constraintEqualToAnchor:self.view.centerYAnchor constant:self.centerYConstant],
-        [self.paymentButton.heightAnchor constraintEqualToConstant:44.0]
+        [self.paymentButton.heightAnchor constraintEqualToConstant:100.0]
     ]];
 }
 

Demo/Application/Features/Amex/BraintreeDemoAmexViewController.swift

@@ -0,0 +1,95 @@
+import Foundation
+import BraintreeAmericanExpress
+import BraintreeCard
+
+class BraintreeDemoAmexViewController: BraintreeDemoPaymentButtonBaseViewController {
+
+    lazy var amexClient = BTAmericanExpressClient(apiClient: apiClient)
+    lazy var cardClient = BTCardClient(apiClient: apiClient)
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        title = "Amex"
+    }
+
+    override func createPaymentButton() -> UIView! {
+        let validCardButton = createButton(title: "Valid card", action: #selector(tappedValidCard))
+        let insufficientPointsCardButton = createButton(title: "Insufficient points card", action: #selector(tappedInsufficientPointsCard))
+        let ineligibleCardButton = createButton(title: "Ineligible card", action: #selector(tappedIneligibleCard))
+
+        let stackView = UIStackView(arrangedSubviews: [validCardButton, insufficientPointsCardButton, ineligibleCardButton])
+        stackView.axis = .vertical
+        stackView.alignment = .center
+        stackView.distribution = .fillEqually
+        stackView.translatesAutoresizingMaskIntoConstraints = false
+
+        return stackView
+    }
+
+    @objc func tappedValidCard() {
+        getRewards(for: "371260714673002")
+    }
+
+    @objc func tappedInsufficientPointsCard() {
+        getRewards(for: "371544868764018")
+    }
+
+    @objc func tappedIneligibleCard() {
+        getRewards(for: "378267515471109")
+    }
+
+    private func getRewards(for cardNumber: String) {
+        let card = BTCard()
+        card.number = cardNumber
+        card.expirationMonth = "12"
+        card.expirationYear = generateFutureYear()
+        card.cvv = "1234"
+
+        progressBlock("Tokenizing Card")
+
+        cardClient.tokenize(card) { tokenizedCard, error in
+            guard let tokenizedCard else {
+                self.progressBlock(error?.localizedDescription)
+                return
+            }
+
+            self.progressBlock("Amex - getting rewards balance")
+
+            self.amexClient.getRewardsBalance(forNonce: tokenizedCard.nonce, currencyISOCode: "USD") { rewardsBalance, error in
+                guard let rewardsBalance else {
+                    self.progressBlock(error?.localizedDescription)
+                    return
+                }
+
+                if let errorCode = rewardsBalance.errorCode, let errorMessage = rewardsBalance.errorMessage  {
+                    self.progressBlock("\(errorCode): \(errorMessage)")
+                } else if let rewardsAmount = rewardsBalance.rewardsAmount,
+                          let rewardsUnit = rewardsBalance.rewardsUnit,
+                          let currencyAmount = rewardsBalance.currencyAmount,
+                          let currencyIsoCode = rewardsBalance.currencyIsoCode {
+                    self.progressBlock("\(rewardsAmount) \(rewardsUnit), \(currencyAmount) \(currencyIsoCode)")
+                }
+            }
+        }
+    }
+
+    private func generateFutureYear() -> String {
+        let dateFormatter = DateFormatter()
+        dateFormatter.dateFormat = "yy"
+
+        let futureYear = Calendar.current.date(byAdding: .year, value: 3, to: Date())!
+        return dateFormatter.string(from: futureYear)
+    }
+
+    // TODO: move this helper into BraintreeDemoPaymentButtonBaseViewController once converted so all buttons share the same characteristics
+    private func createButton(title: String, action: Selector) -> UIButton {
+        let button = UIButton(type: .system)
+        button.setTitle(title, for: .normal)
+        button.setTitleColor(.blue, for: .normal)
+        button.setTitleColor(.lightGray, for: .highlighted)
+        button.setTitleColor(.lightGray, for: .disabled)
+        button.translatesAutoresizingMaskIntoConstraints = false
+        button.addTarget(self, action: action, for: .touchUpInside)
+        return button
+    }
+}