ISSUE-20004: Refactoring minimum order amount including tax value in the calculate

app/code/Magento/Checkout/Test/Mftf/Section/CheckoutCartSummarySection.xml

@@ -22,6 +22,7 @@
         <element name="total" type="text" selector="//*[@id='cart-totals']//tr[@class='grand totals']//td//span[@class='price']"/>
         <element name="totalAmount" type="text" selector="//*[@id='cart-totals']//tr[@class='grand totals']//td//span[@class='price' and contains(text(), '{{amount}}')]" parameterized="true"/>
         <element name="proceedToCheckout" type="button" selector=".action.primary.checkout span" timeout="30"/>
+        <element name="proceedToCheckoutDisabled" type="button" selector=".action.primary.checkout.disabled" timeout="30"/>
         <element name="discountAmount" type="text" selector="td[data-th='Discount']"/>
         <element name="shippingHeading" type="button" selector="#block-shipping-heading" timeout="10"/>
         <element name="postcode" type="input" selector="input[name='postcode']" timeout="10"/>

app/code/Magento/Checkout/Test/Mftf/Test/StorefrontVerifyGuestCartMinimumAmountTest.xml

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+<tests xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/testSchema.xsd">
+    <test name="StorefrontVerifyGuestCartMinimumAmountTest">
+        <annotations>
+            <features value="Checkout"/>
+            <stories value="Minimum amount order on checkout page"/>
+            <title value="Verify minimum amount on checkout page"/>
+            <description value="When the minimum order amount is set it must consider the tax value"/>
+            <severity value="BLOCKER"/>
+            <testCaseId value="MC-28285"/>
+            <group value="checkout"/>
+            <group value="tax"/>
+        </annotations>
+        <before>
+            <createData entity="FlatRateShippingMethodConfig" stepKey="enableFlatRate"/>
+            <createData entity="FreeShippingMethodsSettingConfig" stepKey="freeShippingMethodsSettingConfig"/>
+            <magentoCLI command="config:set sales/minimum_order/active 1" stepKey="enableMinimumOrderAmount"/>
+            <magentoCLI command="config:set sales/minimum_order/amount 100" stepKey="setMinimumOrderAmount100"/>
+            <createData entity="taxRate_US_NY_8_1" stepKey="createTaxRateUSNY"/>
+            <createData entity="DefaultTaxRuleWithCustomTaxRate" stepKey="createTaxRuleUSNY">
+                <requiredEntity createDataKey="createTaxRateUSNY" />
+            </createData>
+            <createData entity="ApiCategory" stepKey="createCategory"/>
+            <createData entity="defaultSimpleProduct" stepKey="simpleProduct">
+                <requiredEntity createDataKey="createCategory"/>
+                <field key="price">93.00</field>
+            </createData>
+            <actionGroup ref="CliCacheCleanActionGroup" stepKey="cleanInvalidatedCaches">
+                <argument name="tags" value="config full_page"/>
+            </actionGroup>
+        </before>
+        <after>
+            <deleteData createDataKey="createCategory" stepKey="deleteCategory"/>
+            <deleteData createDataKey="simpleProduct" stepKey="deleteProduct"/>
+            <deleteData createDataKey="createTaxRuleUSNY" stepKey="deleteTaxRuleUSNY"/>
+            <deleteData createDataKey="createTaxRateUSNY" stepKey="deleteTaxRateUSNY"/>
+            <createData entity="DefaultShippingMethodsConfig" stepKey="defaultShippingMethodsConfig"/>
+            <createData entity="DefaultMinimumOrderAmount" stepKey="defaultMinimumOrderAmount"/>
+        </after>
+        <actionGroup ref="AssertProductNameAndSkuInStorefrontProductPageByCustomAttributeUrlKeyActionGroup" stepKey="openProductPageAndVerifyProduct">
+            <argument name="product" value="$simpleProduct$"/>
+        </actionGroup>
+        <actionGroup ref="StorefrontAddProductToCartWithQtyActionGroup" stepKey="addSimpleProductToTheCart">
+            <argument name="productQty" value="1"/>
+        </actionGroup>
+        <actionGroup ref="ClickViewAndEditCartFromMiniCartActionGroup" stepKey="clickMiniCart"/>
+        <waitForElementVisible selector="{{CheckoutCartSummarySection.proceedToCheckoutDisabled}}" stepKey="goToCheckoutDisabled"/>
+        <actionGroup ref="AssertMessageCustomerChangeAccountInfoActionGroup" stepKey="assertMinimumAmountOrderMessage">
+            <argument name="message" value="Minimum order amount is $100.00"/>
+            <argument name="messageType" value="notice"/>
+        </actionGroup>
+        <actionGroup ref="CheckoutFillEstimateShippingAndTaxActionGroup" stepKey="fillEstimateShippingAndTaxFields">
+            <argument name="address" value="US_Address_NY_Default_Shipping"/>
+        </actionGroup>
+        <click selector="{{CheckoutCartSummarySection.shippingMethodElementId('freeshipping', 'freeshipping')}}" stepKey="selectShippingMethod"/>
+        <scrollTo selector="{{CheckoutCartSummarySection.proceedToCheckout}}" stepKey="scrollToProceedToCheckout" />
+        <actionGroup ref="StorefrontClickProceedToCheckoutActionGroup" stepKey="goToCheckout"/>
+        <comment userInput="Adding the comment to replace waitForPageToLoad action for preserving Backward Compatibility" stepKey="waitForPageToLoad"/>
+        <waitForElementVisible selector="{{CheckoutShippingMethodsSection.next}}" stepKey="waitForNextButton"/>
+    </test>
+</tests>

app/code/Magento/Checkout/view/frontend/web/js/proceed-to-checkout.js

@@ -6,8 +6,9 @@
 define([
     'jquery',
     'Magento_Customer/js/model/authentication-popup',
-    'Magento_Customer/js/customer-data'
-], function ($, authenticationPopup, customerData) {
+    'Magento_Customer/js/customer-data',
+    'Magento_Checkout/js/model/quote'
+], function ($, authenticationPopup, customerData, quote) {
     'use strict';
 
     return function (config, element) {
@@ -26,5 +27,16 @@ define([
             location.href = config.checkoutUrl;
         });
 
+        quote.totals.subscribe(function (totals) {
+            if (totals['is_minimum_order_amount']) {
+                $(element).prop('disabled', false);
+                $(element).removeClass('disabled');
+
+                return;
+            }
+
+            $(element).prop('disabled', true);
+            $(element).addClass('disabled');
+        });
     };
 });

app/code/Magento/Quote/Api/Data/TotalsInterface.php

@@ -475,7 +475,7 @@ public function getTotalSegments();
      * @return $this
      */
     public function setTotalSegments($totals = []);
-
+    
     /**
      * Retrieve existing extension attributes object or create a new one.
      *

app/code/Magento/Quote/Model/Cart/CartTotalRepository.php

@@ -117,6 +117,10 @@ public function get($cartId): QuoteTotalsInterface
         $quoteTotals->setItemsQty($quote->getItemsQty());
         $quoteTotals->setBaseCurrencyCode($quote->getBaseCurrencyCode());
         $quoteTotals->setQuoteCurrencyCode($quote->getQuoteCurrencyCode());
+        $isMinimumOrderAmount = $quote->validateMinimumAmount();
+        $extensionAttributes = $quoteTotals->getExtensionAttributes();
+        $extensionAttributes->setIsMinimumOrderAmount($isMinimumOrderAmount);
+        $quoteTotals->setExtensionAttributes($extensionAttributes);
         return $quoteTotals;
     }
 }

app/code/Magento/Quote/Model/Quote.php

@@ -2298,6 +2298,8 @@ public function validateMinimumAmount($multishipping = false)
             $storeId
         );
 
+        $this->collectTotals()->save();
+
         $addresses = $this->getAllAddresses();
 
         if (!$multishipping) {

app/code/Magento/Quote/Test/Unit/Model/Cart/CartTotalRepositoryTest.php

@@ -14,6 +14,7 @@
 use Magento\Quote\Api\CartRepositoryInterface;
 use Magento\Quote\Api\CouponManagementInterface;
 use Magento\Quote\Api\Data\TotalSegmentInterface;
+use Magento\Quote\Api\Data\TotalsExtensionInterface;
 use Magento\Quote\Api\Data\TotalsInterface as QuoteTotalsInterface;
 use Magento\Quote\Api\Data\TotalsInterfaceFactory;
 use Magento\Quote\Model\Cart\CartTotalRepository;
@@ -108,7 +109,8 @@ protected function setUp(): void
                     'getBillingAddress',
                     'getAllVisibleItems',
                     'getItemsQty',
-                    'collectTotals'
+                    'collectTotals',
+                    'validateMinimumAmount'
                 ]
             )
             ->disableOriginalConstructor()
@@ -138,6 +140,10 @@ protected function setUp(): void
             TotalsConverter::class
         );
 
+        $this->totalsConverterMock = $this->createMock(
+            TotalsConverter::class
+        );
+
         $this->model = new CartTotalRepository(
             $this->totalsFactoryMock,
             $this->quoteRepositoryMock,
@@ -247,6 +253,29 @@ public function testGetCartTotal($isVirtual, $getAddressType): void
             ->with(self::STUB_CURRENCY_CODE)
             ->willReturnSelf();
 
+        $totalExtensionInterfaceMock = $this->getMockBuilder(TotalsExtensionInterface::class)
+            ->onlyMethods(['setIsMinimumOrderAmount'])
+            ->disableOriginalConstructor()
+            ->getMockForAbstractClass();
+
+        $totalsMock->expects($this->once())
+            ->method('getExtensionAttributes')
+            ->willReturn($totalExtensionInterfaceMock);
+
+        $totalExtensionInterfaceMock->expects($this->once())
+            ->method('setIsMinimumOrderAmount')
+            ->with(true)
+            ->willReturnSelf();
+
+        $totalsMock->expects($this->once())
+            ->method('setExtensionAttributes')
+            ->with($totalExtensionInterfaceMock)
+            ->willReturnSelf();
+
+        $this->quoteMock->expects($this->once())
+            ->method('validateMinimumAmount')
+            ->willReturn(true);
+
         $this->assertEquals($totalsMock, $this->model->get(self::STUB_CART_ID));
     }
 

app/code/Magento/Quote/Test/Unit/Model/QuoteTest.php

@@ -40,6 +40,7 @@
 use Magento\Quote\Model\Quote\AddressFactory;
 use Magento\Quote\Model\Quote\Item;
 use Magento\Quote\Model\Quote\Item\Processor;
+use Magento\Quote\Model\Quote\TotalsCollector;
 use Magento\Quote\Model\Quote\Payment;
 use Magento\Quote\Model\Quote\PaymentFactory;
 use Magento\Quote\Model\ResourceModel\Quote\Address\Collection;
@@ -190,6 +191,11 @@ class QuoteTest extends TestCase
      */
     private $orderIncrementIdChecker;
 
+    /**
+     * @var TotalsCollector|MockObject
+     */
+    private $totalsCollector;
+
     /**
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
      */
@@ -311,6 +317,12 @@ protected function setUp(): void
             CustomerInterfaceFactory::class,
             ['create']
         );
+
+        $this->totalsCollector = $this->getMockBuilder(TotalsCollector::class)
+                ->onlyMethods(['collect'])
+                ->disableOriginalConstructor()
+                ->getMock();
+
         $this->orderIncrementIdChecker = $this->createMock(OrderIncrementIdChecker::class);
         $this->quote = (new ObjectManager($this))
             ->getObject(
@@ -337,6 +349,7 @@ protected function setUp(): void
                     'customerDataFactory' => $this->customerDataFactoryMock,
                     'itemProcessor' => $this->itemProcessor,
                     'orderIncrementIdChecker' => $this->orderIncrementIdChecker,
+                    'totalsCollector' => $this->totalsCollector,
                     'data' => [
                         'reserved_order_id' => 1000001,
                     ],
@@ -1083,6 +1096,19 @@ public function testValidateMinimumAmount()
             ->method('setQuoteFilter')
             ->willReturn([$this->quoteAddressMock]);
 
+        $totalsMock = $this->getMockBuilder(DataObject::class)
+            ->onlyMethods(['getData'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $totalsMock->expects($this->once())
+            ->method('getData')
+            ->willReturn([]);
+
+        $this->totalsCollector->expects($this->once())
+            ->method('collect')
+            ->willReturn($totalsMock);
+
         $this->assertTrue($this->quote->validateMinimumAmount());
     }
 
@@ -1110,6 +1136,19 @@ public function testValidateMinimumAmountNegative()
             ->method('setQuoteFilter')
             ->willReturn([$this->quoteAddressMock]);
 
+        $totalsMock = $this->getMockBuilder(DataObject::class)
+            ->onlyMethods(['getData'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $totalsMock->expects($this->once())
+            ->method('getData')
+            ->willReturn([]);
+
+        $this->totalsCollector->expects($this->once())
+            ->method('collect')
+            ->willReturn($totalsMock);
+
         $this->assertFalse($this->quote->validateMinimumAmount());
     }
 

app/code/Magento/Quote/etc/extension_attributes.xml

@@ -12,5 +12,6 @@
 
     <extension_attributes for="Magento\Quote\Api\Data\TotalsInterface">
         <attribute code="coupon_label" type="string" />
+        <attribute code="is_minimum_order_amount" type="int" />
     </extension_attributes>
 </config>

dev/tests/api-functional/testsuite/Magento/Quote/Api/CartTotalRepositoryTest.php

@@ -240,7 +240,7 @@ private function getData(Quote $quote, Address $shippingAddress) : array
             Totals::KEY_BASE_CURRENCY_CODE => $quote->getBaseCurrencyCode(),
             Totals::KEY_QUOTE_CURRENCY_CODE => $quote->getQuoteCurrencyCode(),
             Totals::KEY_ITEMS_QTY => $quote->getItemsQty(),
-            Totals::KEY_ITEMS => [$this->getQuoteItemTotalsData($quote)],
+            Totals::KEY_ITEMS => [$this->getQuoteItemTotalsData($quote)]
         ];
     }
 }

dev/tests/api-functional/testsuite/Magento/Quote/Api/GuestCartTotalRepositoryTest.php

@@ -86,7 +86,7 @@ public function testGetTotals()
             Totals::KEY_BASE_CURRENCY_CODE => $quote->getBaseCurrencyCode(),
             Totals::KEY_QUOTE_CURRENCY_CODE => $quote->getQuoteCurrencyCode(),
             Totals::KEY_ITEMS_QTY => $quote->getItemsQty(),
-            Totals::KEY_ITEMS => [$this->getQuoteItemTotalsData($quote)],
+            Totals::KEY_ITEMS => [$this->getQuoteItemTotalsData($quote)]
         ];
 
         $requestData = ['cartId' => $cartId];