[CHK-4614] Adding Express Pay modal to the PDP

Adding before cart add event to clear cart for quick purchase
Adding support for SDK onClick event to add item to cart on pdp
Adding page source argument to express pay xml to facilitate above add
Adding functionality to checkout without a quote active
Adding Endpoint to fetch Quote Mask Id for guest shipping estimate endpoints

Api/Quote/GetQuoteInterface.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Bold\CheckoutPaymentBooster\Api\Quote;
+
+/**
+ * Hydrate Bold order from Magento quote.
+ */
+interface GetQuoteInterface
+{
+    /**
+     * Gets Current Session Quote ID
+     *
+     * @return string
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
+    public function getQuoteId();
+}

Model/InitOrderFromQuote.php

@@ -75,7 +75,7 @@ public function init(CartInterface $quote): array
             'cart_id' => $quote->getId() ?? '',
         ];
         $orderData = $this->client->post(
-            (int)$quote->getStore()->getWebsiteId(),
+            (int)$websiteId,
             self::INIT_SIMPLE_ORDER_URI,
             $body
         );

Observer/Product/ExpressPayBeforeAddToCartObserver.php

@@ -0,0 +1,59 @@
+<?php
+
+
+namespace Bold\CheckoutPaymentBooster\Observer\Product;
+
+use Magento\Framework\Event\Observer;
+use Magento\Framework\Event\ObserverInterface;
+use Magento\Checkout\Model\Session;
+use Magento\Quote\Api\CartRepositoryInterface;
+
+/**
+ * Observer for `controller_action_predispatch_checkout_cart_add` event
+ *
+ * @see \Magento\Framework\App\FrontController::dispatchPreDispatchEvents
+ * @see \Magento\Checkout\Controller\Cart\Add::execute
+ */
+class ExpressPayBeforeAddToCartObserver implements ObserverInterface
+{
+    /**
+     * @var Session
+     */
+    protected $checkoutSession;
+
+    /**
+     * @var CartRepositoryInterface
+     */
+    protected $cartRepository;
+
+    public function __construct(Session $checkoutSession, CartRepositoryInterface $cartRepository)
+    {
+        $this->checkoutSession = $checkoutSession;
+        $this->cartRepository = $cartRepository;
+    }
+
+    /**
+     * Clear the cart before checking out with Express Pay from the product detail page
+     *
+     * @param Observer $observer
+     * @return void
+     */
+    public function execute(Observer $observer): void
+    {
+        $request = $observer->getEvent()->getRequest();
+        $isExpressPayOrder = $request->getParam('source') === 'expresspay';
+
+        $quote = $this->checkoutSession->getQuote();
+
+        if (!$isExpressPayOrder) {
+            return;
+        }
+        $this->checkoutSession->setCheckoutState(true);
+        $quote->removeAllItems();
+        $quote->setTotalsCollectedFlag(false);
+        $this->checkoutSession->clearQuote();
+
+        $this->cartRepository->save($quote);
+        $this->checkoutSession->setQuoteId($quote->getId());
+    }
+}

Observer/ShortcutButtons/AddExpressPayButtonsObserver.php

@@ -9,6 +9,7 @@
 use Magento\Catalog\Block\ShortcutButtons;
 use Magento\Framework\Event\ObserverInterface;
 use Magento\Framework\Event\Observer;
+use Bold\CheckoutPaymentBooster\UI\PaymentBoosterConfigProvider;
 
 /**
  * Observes the `shortcut_buttons_container` event
@@ -32,14 +33,21 @@ public function execute(Observer $observer): void
         $event = $observer->getEvent();
         /** @var ShortcutButtons $container */
         $container = $event->getData('container');
+
+        $layout = $container->getLayout();
+
+        if ($layout->getBlock(ExpressPayShortcutButtons::BLOCK_ALIAS) !== false) {
+            return;
+        }
+
         /** @var ExpressPayShortcutButtons $expressPayShortcutButtons */
-        $expressPayShortcutButtons = $container->getLayout()->createBlock(
+        $expressPayShortcutButtons = $layout->createBlock(
             ExpressPayShortcutButtons::class,
             ExpressPayShortcutButtons::BLOCK_ALIAS,
             [
                 'data' => [
                     'express_pay_view_model' => $this->expressPayFactory->create(),
-                    'render_page_source' => 'mini-cart'
+                    'render_page_source' => PaymentBoosterConfigProvider::PAGE_SOURCE_MINICART
                 ]
             ]
         );

Service/ExpressPay/Order/Create.php

@@ -7,8 +7,10 @@
 use Bold\CheckoutPaymentBooster\Api\Http\ClientInterface;
 use Bold\CheckoutPaymentBooster\Service\ExpressPay\QuoteConverter;
 use Exception;
+use Magento\Checkout\Model\Session;
 use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Framework\Session\SessionManagerInterface;
 use Magento\Quote\Api\CartRepositoryInterface;
 use Magento\Quote\Model\MaskedQuoteIdToQuoteIdInterface;
 use Magento\Quote\Model\Quote;
@@ -41,18 +43,24 @@ class Create
     /**
      * @var ClientInterface
      */
-    private $httpClient;
+    private $httpClient;    
+    /**
+     * @var SessionManagerInterface
+     */
+    private $checkoutSession;
 
     public function __construct(
         MaskedQuoteIdToQuoteIdInterface $maskedQuoteIdToQuoteId,
         CartRepositoryInterface $cartRepository,
         QuoteConverter $quoteConverter,
-        ClientInterface $httpClient
+        ClientInterface $httpClient,
+        SessionManagerInterface $checkoutSession
     ) {
         $this->maskedQuoteIdToQuoteId = $maskedQuoteIdToQuoteId;
         $this->cartRepository = $cartRepository;
         $this->quoteConverter = $quoteConverter;
         $this->httpClient = $httpClient;
+        $this->checkoutSession = $checkoutSession;
     }
 
     /**
@@ -77,18 +85,29 @@ public function execute($quoteMaskId, $gatewayId, $shippingStrategy): array
             $quoteId = $quoteMaskId;
         }
 
-        try {
-            /** @var Quote $quote */
-            $quote = $this->cartRepository->get((int)$quoteId);
-        } catch (NoSuchEntityException $noSuchEntityException) {
-            throw new LocalizedException(__('Could not create Express Pay order. Invalid quote ID "%1".', $quoteId));
+        if ($quoteId !== '') {
+            try {
+                /** @var Quote $quote */
+                $quote = $this->cartRepository->get((int)$quoteId);
+            } catch (NoSuchEntityException $noSuchEntityException) {
+                throw new LocalizedException(__('Could not create Express Pay order. Invalid quote ID "%1".', $quoteId));
+            }
+        } else {
+            try {
+                /** @var Session $session */
+                $session = $this->checkoutSession;
+                /** @var Quote $quote */
+                $quote = $session->getQuote();
+            } catch (NoSuchEntityException $noSuchEntityException) {
+                throw new LocalizedException(__('Active quote not found.'));
+            }
         }
 
-       $hasBillingData = $quote->getBillingAddress()->getFirstname() && $quote->getBillingAddress()->getStreet();
+        $hasBillingData = $quote->getBillingAddress()->getFirstname() && $quote->getBillingAddress()->getStreet();
 
-       if (!$hasBillingData && !empty($quote->getShippingAddress()->getShippingMethod())) {
-           $quote->getShippingAddress()->setShippingMethod('');
-       }
+        if (!$hasBillingData && !empty($quote->getShippingAddress()->getShippingMethod())) {
+            $quote->getShippingAddress()->setShippingMethod('');
+        }
 
         $websiteId = (int)$quote->getStore()->getWebsiteId();
         $uri = 'checkout/orders/{{shopId}}/wallet_pay';

Service/ExpressPay/Order/Update.php

@@ -8,8 +8,10 @@
 use Bold\CheckoutPaymentBooster\Service\ExpressPay\Order\Get as GetExpressPayOrder;
 use Bold\CheckoutPaymentBooster\Service\ExpressPay\QuoteConverter;
 use Exception;
+use Magento\Checkout\Model\Session;
 use Magento\Framework\Exception\LocalizedException;
 use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Framework\Session\SessionManagerInterface;
 use Magento\Quote\Api\CartRepositoryInterface;
 use Magento\Quote\Model\MaskedQuoteIdToQuoteIdInterface;
 use Magento\Quote\Model\Quote;
@@ -46,20 +48,26 @@ class Update
     /**
      * @var GetExpressPayOrder
      */
-    private $getExpressPayOrder;
+    private $getExpressPayOrder;    
+    /**
+     * @var SessionManagerInterface
+     */
+    private $checkoutSession;
 
     public function __construct(
         MaskedQuoteIdToQuoteIdInterface $maskedQuoteIdToQuoteId,
         CartRepositoryInterface $cartRepository,
         QuoteConverter $quoteConverter,
         GetExpressPayOrder $getExpressPayOrder,
-        ClientInterface $httpClient
+        ClientInterface $httpClient,
+        SessionManagerInterface $checkoutSession
     ) {
         $this->maskedQuoteIdToQuoteId = $maskedQuoteIdToQuoteId;
         $this->cartRepository = $cartRepository;
         $this->quoteConverter = $quoteConverter;
         $this->getExpressPayOrder = $getExpressPayOrder;
         $this->httpClient = $httpClient;
+        $this->checkoutSession = $checkoutSession;
     }
 
     /**
@@ -83,11 +91,22 @@ public function execute($quoteMaskId, $gatewayId, $paypalOrderId): void
             $quoteId = $quoteMaskId;
         }
 
-        try {
-            /** @var Quote $quote */
-            $quote = $this->cartRepository->get((int)$quoteId);
-        } catch (NoSuchEntityException $noSuchEntityException) {
-            throw new LocalizedException(__('Could not update Express Pay order. Invalid quote ID "%1".', $quoteId));
+        if ($quoteId !== '') {
+            try {
+                /** @var Quote $quote */
+                $quote = $this->cartRepository->get((int)$quoteId);
+            } catch (NoSuchEntityException $noSuchEntityException) {
+                throw new LocalizedException(__('Could not update Express Pay order. Invalid quote ID "%1".', $quoteId));
+            }
+        } else {
+            try {
+                /** @var Session $session */
+                $session = $this->checkoutSession;
+                /** @var Quote $quote */
+                $quote = $session->getQuote();
+            } catch (NoSuchEntityException $noSuchEntityException) {
+                throw new LocalizedException(__('Active quote not found.'));
+            }
         }
 
         $websiteId = (int)$quote->getStore()->getWebsiteId();

Service/Quote/GetQuote.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Bold\CheckoutPaymentBooster\Service\Quote;
+
+use Bold\CheckoutPaymentBooster\Api\Quote\GetQuoteInterface;
+use Magento\Checkout\Model\Session;
+use Magento\Quote\Model\QuoteIdToMaskedQuoteIdInterface;
+
+/**
+ * Get Current Quote ID from Magento quote.
+ */
+class GetQuote implements GetQuoteInterface
+{
+    /**
+     * @var Session
+     */
+    private $checkoutSession;    
+
+    /**
+     * @var QuoteIdToMaskedQuoteId
+     */
+    private $quoteIdToMaskedQuoteId;
+
+    public function __construct(Session $checkoutSession, QuoteIdToMaskedQuoteIdInterface $quoteIdToMaskedQuoteId) 
+    {
+        $this->checkoutSession = $checkoutSession;
+        $this->quoteIdToMaskedQuoteId = $quoteIdToMaskedQuoteId;
+    }
+
+    /**
+     * Gets Current Session Quote ID
+     *
+     * @return string
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
+    public function getQuoteId()
+    {
+        $quoteId = (int)$this->checkoutSession->getQuote()->getId();
+        $quoteIdMask = $this->quoteIdToMaskedQuoteId->execute($quoteId);
+
+        return $quoteIdMask;
+    }
+}

UI/PaymentBoosterConfigProvider.php

@@ -11,13 +11,19 @@
 use Magento\Directory\Model\Country;
 use Magento\Directory\Model\ResourceModel\Country\CollectionFactory;
 use Magento\Config\Model\Config\Source\Nooptreq as NooptreqSource;
+use Magento\Store\Model\StoreManagerInterface;
 use Psr\Log\LoggerInterface;
 
 /**
  * Config provider for Payment Booster.
  */
 class PaymentBoosterConfigProvider implements ConfigProviderInterface
 {
+
+    public const PAGE_SOURCE_PRODUCT = 'product';
+    public const PAGE_SOURCE_CART = 'cart';
+    public const PAGE_SOURCE_MINICART = 'mini-cart';
+
     /**
      * @var CheckoutData
      */
@@ -48,6 +54,11 @@ class PaymentBoosterConfigProvider implements ConfigProviderInterface
      */
     private $countries = [];
 
+    /**
+     * @var StoreManagerInterface
+     */
+    private $storeManager;
+
     /**
      * @param CheckoutData $checkoutData
      * @param Config $config
@@ -59,13 +70,15 @@ public function __construct(
         Config $config,
         AllowedCountries $allowedCountries,
         CollectionFactory $collectionFactory,
-        LoggerInterface $logger
+        LoggerInterface $logger,
+        StoreManagerInterface $storeManager
     ) {
         $this->checkoutData = $checkoutData;
         $this->config = $config;
         $this->allowedCountries = $allowedCountries;
         $this->collectionFactory = $collectionFactory;
         $this->logger = $logger;
+        $this->storeManager = $storeManager;
     }
 
     /**
@@ -86,6 +99,7 @@ public function getConfig(): array
         $jwtToken = $this->checkoutData->getJwtToken();
         $epsAuthToken = $this->checkoutData->getEpsAuthToken();
         $epsGatewayId = $this->checkoutData->getEpsGatewayId();
+        $currency = $this->storeManager->getStore()->getCurrentCurrency()->getCode();
         if ($jwtToken === null || $epsAuthToken === null || $epsGatewayId === null) {
             $errorMsgs = [];
             if ($jwtToken === null) {
@@ -127,6 +141,7 @@ public function getConfig(): array
                         'method' => Service::CODE,
                     ],
                 ],
+                'currency' => $currency
             ],
         ];
     }