//
// CheckoutViewController.m
// Mobile Buy SDK Advanced Sample
//
// Created by Shopify.
// Copyright (c) 2015 Shopify Inc. All rights reserved.
//
// 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 <Buy/Buy.h>
#import "CheckoutViewController.h"
#import "GetCompletionStatusOperation.h"
#import "SummaryItemsTableViewCell.h"
#import "UIButton+PaymentButton.h"
NSString * const CheckoutCallbackNotification = @"CheckoutCallbackNotification";
NSString * const MerchantId = @"";
@interface CheckoutViewController () <GetCompletionStatusOperationDelegate, SFSafariViewControllerDelegate, PKPaymentAuthorizationViewControllerDelegate>
@property (nonatomic, strong) BUYCheckout *checkout;
@property (nonatomic, strong) BUYClient *client;
@property (nonatomic, strong) BUYShop *shop;
@property (nonatomic, strong) NSArray *summaryItems;
@property (nonatomic, strong) BUYApplePayHelpers *applePayHelper;
@end
@implementation CheckoutViewController
- (instancetype)initWithClient:(BUYClient *)client checkout:(BUYCheckout *)checkout;
{
NSParameterAssert(client);
NSParameterAssert(checkout);
self = [super initWithStyle:UITableViewStyleGrouped];
if (self) {
self.checkout = checkout;
self.client = client;
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
self.title = @"Checkout";
UIView *footerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), 164)];
UIButton *creditCardButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[creditCardButton setTitle:@"Checkout with Credit Card" forState:UIControlStateNormal];
creditCardButton.backgroundColor = [UIColor colorWithRed:0.48f green:0.71f blue:0.36f alpha:1.0f];
creditCardButton.layer.cornerRadius = 6;
[creditCardButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
creditCardButton.translatesAutoresizingMaskIntoConstraints = NO;
[creditCardButton addTarget:self action:@selector(checkoutWithCreditCard) forControlEvents:UIControlEventTouchUpInside];
[footerView addSubview:creditCardButton];
UIButton *webCheckoutButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[webCheckoutButton setTitle:@"Web Checkout" forState:UIControlStateNormal];
webCheckoutButton.backgroundColor = [UIColor colorWithRed:0.48f green:0.71f blue:0.36f alpha:1.0f];
webCheckoutButton.layer.cornerRadius = 6;
[webCheckoutButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
webCheckoutButton.translatesAutoresizingMaskIntoConstraints = NO;
[webCheckoutButton addTarget:self action:@selector(checkoutOnWeb) forControlEvents:UIControlEventTouchUpInside];
[footerView addSubview:webCheckoutButton];
UIButton *applePayButton = [UIButton paymentButtonWithType:PaymentButtonTypeBuy style:PaymentButtonStyleBlack];
applePayButton.translatesAutoresizingMaskIntoConstraints = NO;
[applePayButton addTarget:self action:@selector(checkoutWithApplePay) forControlEvents:UIControlEventTouchUpInside];
[footerView addSubview:applePayButton];
NSDictionary *views = NSDictionaryOfVariableBindings(creditCardButton, webCheckoutButton, applePayButton);
[footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[creditCardButton]-|" options:0 metrics:nil views:views]];
[footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[webCheckoutButton]-|" options:0 metrics:nil views:views]];
[footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[applePayButton]-|" options:0 metrics:nil views:views]];
[footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-[creditCardButton(44)]-[webCheckoutButton(==creditCardButton)]-[applePayButton(==creditCardButton)]-|" options:0 metrics:nil views:views]];
self.tableView.tableFooterView = footerView;
[self.tableView registerClass:[SummaryItemsTableViewCell class] forCellReuseIdentifier:@"SummaryCell"];
// Prefetch the shop object for Apple Pay
[self.client getShop:^(BUYShop *shop, NSError *error) {
_shop = shop;
}];
}
- (void)setCheckout:(BUYCheckout *)checkout
{
_checkout = checkout;
self.summaryItems = [checkout buy_summaryItems];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.summaryItems count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SummaryCell" forIndexPath:indexPath];
PKPaymentSummaryItem *summaryItem = self.summaryItems[indexPath.row];
cell.textLabel.text = summaryItem.label;
cell.detailTextLabel.text = [self.currencyFormatter stringFromNumber:summaryItem.amount];
// Only show a line above the last cell
if (indexPath.row != [self.summaryItems count] - 2) {
cell.separatorInset = UIEdgeInsetsMake(0.f, 0.f, 0.f, cell.bounds.size.width);
}
return cell;
}
- (void)addCreditCardToCheckout:(void (^)(BOOL success, id<BUYPaymentToken> token))callback
{
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
[self.client storeCreditCard:[self creditCard] checkout:self.checkout completion:^(BUYCheckout *checkout, id<BUYPaymentToken> token, NSError *error) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
if (error == nil && checkout) {
NSLog(@"Successfully added credit card to checkout");
self.checkout = checkout;
}
else {
NSLog(@"Error applying credit card: %@", error);
}
callback(error == nil && checkout, token);
}];
}
- (BUYCreditCard *)creditCard
{
BUYCreditCard *creditCard = [[BUYCreditCard alloc] init];
creditCard.number = @"4242424242424242";
creditCard.expiryMonth = @"12";
creditCard.expiryYear = @"2020";
creditCard.cvv = @"123";
creditCard.nameOnCard = @"John Smith";
return creditCard;
}
- (void)showCheckoutConfirmation
{
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Checkout complete" message:nil preferredStyle:UIAlertControllerStyleAlert];;
[alertController addAction:[UIAlertAction actionWithTitle:@"Start over"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action) {
[self.navigationController popToRootViewControllerAnimated:YES];
}]];
[alertController addAction:[UIAlertAction actionWithTitle:@"Show order status page"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action) {
SFSafariViewController *safariViewController = [[SFSafariViewController alloc] initWithURL:self.checkout.order.statusURL];
safariViewController.delegate = self;
[self presentViewController:safariViewController animated:YES completion:NULL];
}]];
[self presentViewController:alertController animated:YES completion:nil];
}
#pragma mark - SafariViewControllerDelegate
- (void)safariViewControllerDidFinish:(SFSafariViewController *)controller
{
[self getCompletedCheckout:^{
if (self.checkout.order) {
dispatch_async(dispatch_get_main_queue(), ^{
[self showCheckoutConfirmation];
});
}
}];
}
#pragma mark Native Checkout
- (void)checkoutWithCreditCard
{
__weak CheckoutViewController *welf = self;
// First, the credit card must be stored on the checkout
[self addCreditCardToCheckout:^(BOOL success, id<BUYPaymentToken> token) {
if (success) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
// Upon successfully adding the credit card to the checkout, complete checkout must be called immediately
[welf.client completeCheckout:welf.checkout paymentToken:token completion:^(BUYCheckout *checkout, NSError *error) {
if (error == nil && checkout) {
NSLog(@"Successfully completed checkout");
welf.checkout = checkout;
GetCompletionStatusOperation *completionOperation = [[GetCompletionStatusOperation alloc] initWithClient:welf.client withCheckout:welf.checkout];
completionOperation.delegate = welf;
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
[[NSOperationQueue mainQueue] addOperation:completionOperation];
}
else {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSLog(@"Error completing checkout: %@", error);
}
}];
}
}];
}
- (void)operation:(GetCompletionStatusOperation *)operation didReceiveCompletionStatus:(BUYStatus)completionStatus
{
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSLog(@"Successfully got completion status: %lu", (unsigned long)completionStatus);
[self getCompletedCheckout:NULL];
}
- (void)operation:(GetCompletionStatusOperation *)operation failedToReceiveCompletionStatus:(NSError *)error
{
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSLog(@"Error getting completion status: %@", error);
}
#pragma mark - Apple Pay Checkout
- (void)checkoutWithApplePay
{
PKPaymentRequest *request = [self paymentRequest];
PKPaymentAuthorizationViewController *paymentController = [[PKPaymentAuthorizationViewController alloc] initWithPaymentRequest:request];
self.applePayHelper = [[BUYApplePayHelpers alloc] initWithClient:self.client checkout:self.checkout shop:self.shop];
paymentController.delegate = self;
/**
* Alternatively we can set the delegate to self.applePayHelper.
* If you do not care about any PKPaymentAuthorizationViewControllerDelegate callbacks
* uncomment the code below to let BUYApplePayHelpers take care of them automatically.
* You can then also safely remove the PKPaymentAuthorizationViewControllerDelegate
* methods below.
*
* // paymentController.delegate = self.applePayHelper
*
* If you keep self as the delegate, you have a chance to intercept the
* PKPaymentAuthorizationViewControllerDelegate callbacks and add any additional logging
* and method calls as you need. Ensure that you forward them to the BUYApplePayHelpers
* class by calling the delegate methods on BUYApplePayHelpers which already implements
* the PKPaymentAuthorizationViewControllerDelegate protocol.
*
*/
[self presentViewController:paymentController animated:YES completion:nil];
}
- (PKPaymentRequest *)paymentRequest
{
PKPaymentRequest *paymentRequest = [[PKPaymentRequest alloc] init];
[paymentRequest setMerchantIdentifier:MerchantId];
[paymentRequest setRequiredBillingAddressFields:PKAddressFieldAll];
[paymentRequest setRequiredShippingAddressFields:self.checkout.requiresShipping ? PKAddressFieldAll : PKAddressFieldEmail|PKAddressFieldPhone];
[paymentRequest setSupportedNetworks:@[PKPaymentNetworkVisa, PKPaymentNetworkMasterCard]];
[paymentRequest setMerchantCapabilities:PKMerchantCapability3DS];
[paymentRequest setCountryCode:self.shop.country ?: @"US"];
[paymentRequest setCurrencyCode:self.shop.currency ?: @"USD"];
[paymentRequest setPaymentSummaryItems:[self.checkout buy_summaryItemsWithShopName:self.shop.name]];
return paymentRequest;
}
#pragma mark - PKPaymentAuthorizationViewControllerDelegate
- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
didAuthorizePayment:(PKPayment *)payment
completion:(void (^)(PKPaymentAuthorizationStatus status))completion
{
// Add additional methods if needed and forward the callback to BUYApplePayHelpers
[self.applePayHelper paymentAuthorizationViewController:controller didAuthorizePayment:payment completion:completion];
self.checkout = self.applePayHelper.checkout;
[self getCompletedCheckout:NULL];
}
- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller
{
// Add additional methods if needed and forward the callback to BUYApplePayHelpers
[self.applePayHelper paymentAuthorizationViewControllerDidFinish:controller];
}
-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingAddress:(ABRecordRef)address completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion
{
// Add additional methods if needed and forward the callback to BUYApplePayHelpers
[self.applePayHelper paymentAuthorizationViewController:controller didSelectShippingAddress:address completion:completion];
}
-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingContact:(PKContact *)contact completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion
{
// Add additional methods if needed and forward the callback to BUYApplePayHelpers
[self.applePayHelper paymentAuthorizationViewController:controller didSelectShippingContact:contact completion:completion];
}
-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingMethod:(PKShippingMethod *)shippingMethod completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion
{
// Add additional methods if needed and forward the callback to BUYApplePayHelpers
[self.applePayHelper paymentAuthorizationViewController:controller didSelectShippingMethod:shippingMethod completion:completion];
}
# pragma mark - Web checkout
- (void)checkoutOnWeb
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didReceiveCallbackURLNotification:) name:CheckoutCallbackNotification object:nil];
// On iOS 9+ we should use the SafariViewController to display the checkout in-app
if ([SFSafariViewController class]) {
SFSafariViewController *safariViewController = [[SFSafariViewController alloc] initWithURL:self.checkout.webCheckoutURL];
safariViewController.delegate = self;
[self presentViewController:safariViewController animated:YES completion:nil];
}
else {
[[UIApplication sharedApplication] openURL:self.checkout.webCheckoutURL];
}
}
- (void)didReceiveCallbackURLNotification:(NSNotification *)notification
{
NSURL *url = notification.userInfo[@"url"];
if ([self.presentedViewController isKindOfClass:[SFSafariViewController class]]) {
[self dismissViewControllerAnimated:self.presentedViewController completion:^{
[self getCompletionStatusAndCompletedCheckoutWithURL:url];
}];
} else {
[self getCompletionStatusAndCompletedCheckoutWithURL:url];
}
[[NSNotificationCenter defaultCenter] removeObserver:self name:CheckoutCallbackNotification object:nil];
}
- (void)getCompletionStatusAndCompletedCheckoutWithURL:(NSURL*)url
{
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
__weak CheckoutViewController *welf = self;
[self.client getCompletionStatusOfCheckoutURL:url completion:^(BUYStatus status, NSError *error) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
if (error == nil && status == BUYStatusComplete) {
NSLog(@"Successfully completed checkout");
[welf getCompletedCheckout:^{
dispatch_async(dispatch_get_main_queue(), ^{
[self showCheckoutConfirmation];
});
}];
}
else {
NSLog(@"Error completing checkout: %@", error);
}
}];
}
- (void)getCompletedCheckout:(void (^)(void))completionBlock
{
__weak CheckoutViewController *welf = self;
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
[self.client getCheckout:self.checkout completion:^(BUYCheckout *checkout, NSError *error) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
if (error) {
NSLog(@"Unable to get completed checkout");
NSLog(@"%@", error);
}
if (checkout) {
welf.checkout = checkout;
NSLog(@"%@", checkout);
}
if (completionBlock) {
completionBlock();
}
}];
}
@end