From 7627f38b583096dd7853973cc88c5c161994503e Mon Sep 17 00:00:00 2001
From: Peter Wilson <519727+peterwilsoncc@users.noreply.github.com>
Date: Thu, 14 Dec 2023 14:36:25 +1100
Subject: [PATCH 01/20] Send wc_ prefixed fields for express payments.

---
 .../use-express-checkout-product-handler.js       | 12 +++++++++++-
 client/payment-request/index.js                   | 15 +++++++++++++--
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/client/checkout/woopay/express-button/use-express-checkout-product-handler.js b/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
index 5567cb4a1ae..3df0c452888 100644
--- a/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
+++ b/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
@@ -2,6 +2,7 @@
  * External dependencies
  */
 import validator from 'validator';
+import { applyFilters } from '@wordpress/hooks';
 
 const useExpressCheckoutProductHandler = ( api ) => {
 	const getAttributes = () => {
@@ -104,6 +105,14 @@ const useExpressCheckoutProductHandler = ( api ) => {
 		}
 
 		const addOnForm = document.querySelector( 'form.cart' );
+		let allowedFieldNames = applyFilters(
+			'wcpayPaymentRequestAllowedFieldNames',
+			[]
+		);
+		// Ensure allowedFieldNames is an array.
+		if ( ! Array.isArray( allowedFieldNames ) ) {
+			allowedFieldNames = [ allowedFieldNames ];
+		}
 
 		if ( addOnForm ) {
 			const formData = new FormData( addOnForm );
@@ -111,7 +120,8 @@ const useExpressCheckoutProductHandler = ( api ) => {
 			formData.forEach( ( value, name ) => {
 				if (
 					/^addon-/.test( name ) ||
-					/^wc_gc_giftcard_/.test( name )
+					/^wc_/.test( name ) ||
+					allowedFieldNames.includes( name )
 				) {
 					if ( /\[\]$/.test( name ) ) {
 						const fieldName = name.substring( 0, name.length - 2 );
diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index 9578b42517c..2933cac2088 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -3,7 +3,7 @@
  * External dependencies
  */
 import { __ } from '@wordpress/i18n';
-import { doAction } from '@wordpress/hooks';
+import { applyFilters, doAction } from '@wordpress/hooks';
 /**
  * Internal dependencies
  */
@@ -175,8 +175,19 @@ jQuery( ( $ ) => {
 
 			// Add addons data to the POST body
 			const formData = $( 'form.cart' ).serializeArray();
+			let allowedFieldNames = applyFilters(
+				'wcpayPaymentRequestAllowedFieldNames',
+				[]
+			);
+			// Ensure allowedFieldNames is an array.
+			if ( ! Array.isArray( allowedFieldNames ) ) {
+				allowedFieldNames = [ allowedFieldNames ];
+			}
 			$.each( formData, ( i, field ) => {
-				if ( /^addon-/.test( field.name ) ) {
+				if (
+					allowedFieldNames.includes( field.name ) ||
+					/^(addon-|wc_)/.test( field.name )
+				) {
 					if ( /\[\]$/.test( field.name ) ) {
 						const fieldName = field.name.substring(
 							0,

From 21cdddffdc46bc532e8d615b13b5f64ef3a50f51 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Wed, 3 Jan 2024 17:47:35 -0300
Subject: [PATCH 02/20] Reload payment request when the deposit option is
 changed

---
 client/payment-request/index.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index ddd76ff2db2..950d486ba03 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -440,6 +440,14 @@ jQuery( ( $ ) => {
 				wcpayPaymentRequest.addToCart();
 			} );
 
+			// WooCommerce Deposits support.
+			// Trigger the "woocommerce_variation_has_changed" event when the deposit option is changed.
+			$( 'input[name=wc_deposit_option]' ).on( 'change', () => {
+				$( 'form:has(input[name=wc_deposit_option])' ).trigger(
+					'woocommerce_variation_has_changed'
+				);
+			} );
+
 			$( document.body ).on( 'woocommerce_variation_has_changed', () => {
 				wcpayPaymentRequest.blockPaymentRequestButton();
 

From f55654e4f5cbf7e58c0aff6aad4333abf772f8e5 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Wed, 3 Jan 2024 18:55:22 -0300
Subject: [PATCH 03/20] Handling selected deposit option

---
 client/payment-request/index.js                 |  9 +++++++++
 ...-payments-payment-request-button-handler.php | 17 +++++++++++++++--
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index 950d486ba03..aabc47545de 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -313,6 +313,14 @@ jQuery( ( $ ) => {
 				0
 			);
 
+			// WC Deposits Support.
+			const depositObject = {};
+			if ( $( 'input[name=wc_deposit_option]' ).length ) {
+				depositObject.wc_deposit_option = $(
+					'input[name=wc_deposit_option]:checked'
+				).val();
+			}
+
 			const data = {
 				product_id: productId,
 				qty: $( '.quantity .qty' ).val(),
@@ -320,6 +328,7 @@ jQuery( ( $ ) => {
 					? wcpayPaymentRequest.getAttributes().data
 					: [],
 				addon_value: addonValue,
+				...depositObject,
 			};
 
 			return api.paymentRequestGetSelectedProductData( data );
diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index 7a30adad550..e1d957cfd0a 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -202,11 +202,12 @@ public function get_button_height() {
 	 * Gets the product total price.
 	 *
 	 * @param object $product WC_Product_* object.
+	 * @param bool   $is_deposit Whether customer is paying a deposit.
 	 * @return mixed Total price.
 	 *
 	 * @throws Invalid_Price_Exception Whenever a product has no price.
 	 */
-	public function get_product_price( $product ) {
+	public function get_product_price( $product, ?bool $is_deposit = null ) {
 		// If prices should include tax, using tax inclusive price.
 		if ( $this->express_checkout_helper->cart_prices_include_tax() ) {
 			$base_price = wc_get_price_including_tax( $product );
@@ -214,6 +215,17 @@ public function get_product_price( $product ) {
 			$base_price = wc_get_price_excluding_tax( $product );
 		}
 
+		// If WooCommerce Deposits is active, we need to get the correct price for the product.
+		if ( class_exists( 'WC_Deposits_Product_Manager' ) && WC_Deposits_Product_Manager::deposits_enabled( $product->get_id() ) ) {
+			// If is_deposit is null, we use the default deposit type for the product.
+			if ( is_null( $is_deposit ) ) {
+				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_type( $product->get_id() );
+			}
+			if ( $is_deposit ) {
+				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, 0, 'display', $base_price );
+			}
+		}
+
 		// Add subscription sign-up fees to product price.
 		$sign_up_fee        = 0;
 		$subscription_types = [
@@ -1050,6 +1062,7 @@ public function ajax_get_selected_product_data() {
 			$product      = wc_get_product( $product_id );
 			$variation_id = null;
 			$currency     = get_woocommerce_currency();
+			$is_deposit   = isset( $_POST['wc_deposit_option'] ) ? 'yes' === $_POST['wc_deposit_option'] : null;
 
 			if ( ! is_a( $product, 'WC_Product' ) ) {
 				/* translators: product ID */
@@ -1077,7 +1090,7 @@ public function ajax_get_selected_product_data() {
 				throw new Exception( sprintf( __( 'You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-payments' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity(), $product ) ) );
 			}
 
-			$price = $this->get_product_price( $product );
+			$price = $this->get_product_price( $product, $is_deposit );
 			$total = $qty * $price + $addon_value;
 
 			$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';

From fedb13b2cb2ba0c7cda5e48f0e2c7785f50fdd19 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Wed, 3 Jan 2024 19:05:04 -0300
Subject: [PATCH 04/20] Added changelog entry

---
 changelog/7907-support-deposit-express-pay | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 changelog/7907-support-deposit-express-pay

diff --git a/changelog/7907-support-deposit-express-pay b/changelog/7907-support-deposit-express-pay
new file mode 100644
index 00000000000..6851d72dd79
--- /dev/null
+++ b/changelog/7907-support-deposit-express-pay
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fix
+
+Added support for WooCommerce Deposits when using Apple Pay and Google Pay

From a9b2903abb4bee8d0be356c95e57eb078759b136 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Thu, 4 Jan 2024 16:56:43 -0300
Subject: [PATCH 05/20] Fixed deposit tests class

---
 ...lass-wc-helper-deposit-product-manager.php | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
index e542442cfe3..9834f10ff87 100644
--- a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
+++ b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
@@ -11,10 +11,25 @@
  * This helper class should ONLY be used for unit tests!.
  */
 class WC_Deposits_Product_Manager {
-	public static function get_deposit_type( WC_Product_Simple $product ) {
+	/**
+	 * @param WC_Product_Simple|int $product
+	 * @return mixed
+	 */
+	public static function get_deposit_type( $product ) {
+		if ( is_int( $product ) ) {
+			$product = wc_get_product( $product );
+		}
 		return $product->get_meta( '_wc_deposit_type' );
 	}
-	public static function deposits_enabled( WC_Product_Simple $product ) {
+
+	/**
+	 * @param WC_Product_Simple|int $product
+	 * @return bool
+	 */
+	public static function deposits_enabled( $product ) {
+		if ( is_int( $product ) ) {
+			$product = wc_get_product( $product );
+		}
 		return true === $product->get_meta( '_wc_deposits_enabled' );
 	}
 }

From 1f13e7e81ed313c3457c376cab4c203ca7fac168 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Thu, 4 Jan 2024 17:17:29 -0300
Subject: [PATCH 06/20] Fixed deposit tests class

---
 ...class-wc-helper-deposit-product-manager.php |  8 ++++----
 ...payments-payment-request-button-handler.php | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
index 9834f10ff87..d0d8fb1398c 100644
--- a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
+++ b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
@@ -16,8 +16,8 @@ class WC_Deposits_Product_Manager {
 	 * @return mixed
 	 */
 	public static function get_deposit_type( $product ) {
-		if ( is_int( $product ) ) {
-			$product = wc_get_product( $product );
+		if ( ! is_object( $product ) ) {
+			$product = apply_filters( 'test_deposit_get_product', wc_get_product( $product ) );
 		}
 		return $product->get_meta( '_wc_deposit_type' );
 	}
@@ -27,8 +27,8 @@ public static function get_deposit_type( $product ) {
 	 * @return bool
 	 */
 	public static function deposits_enabled( $product ) {
-		if ( is_int( $product ) ) {
-			$product = wc_get_product( $product );
+		if ( ! is_object( $product ) ) {
+			$product = apply_filters( 'test_deposit_get_product', wc_get_product( $product ) );
 		}
 		return true === $product->get_meta( '_wc_deposits_enabled' );
 	}
diff --git a/tests/unit/test-class-wc-payments-payment-request-button-handler.php b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
index e4d7412bf15..a520ab2e10b 100644
--- a/tests/unit/test-class-wc-payments-payment-request-button-handler.php
+++ b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
@@ -446,6 +446,12 @@ public function provide_get_product_tax_tests() {
 
 	public function test_get_product_price_includes_subscription_sign_up_fee() {
 		$mock_product = $this->create_mock_subscription( 'subscription' );
+		add_filter(
+			'test_deposit_get_product',
+			function() use ( $mock_product ) {
+				return $mock_product;
+			}
+		);
 
 		// We have a helper because we are not loading subscriptions.
 		WC_Subscriptions_Product::set_sign_up_fee( 10 );
@@ -458,6 +464,12 @@ public function test_get_product_price_includes_subscription_sign_up_fee() {
 
 	public function test_get_product_price_includes_variable_subscription_sign_up_fee() {
 		$mock_product = $this->create_mock_subscription( 'subscription_variation' );
+		add_filter(
+			'test_deposit_get_product',
+			function() use ( $mock_product ) {
+				return $mock_product;
+			}
+		);
 
 		// We have a helper because we are not loading subscriptions.
 		WC_Subscriptions_Product::set_sign_up_fee( 10 );
@@ -483,6 +495,12 @@ public function test_get_product_price_throws_exception_for_products_without_pri
 
 	public function test_get_product_price_throws_exception_for_a_non_numeric_signup_fee() {
 		$mock_product = $this->create_mock_subscription( 'subscription' );
+		add_filter(
+			'test_deposit_get_product',
+			function() use ( $mock_product ) {
+				return $mock_product;
+			}
+		);
 		WC_Subscriptions_Product::set_sign_up_fee( 'a' );
 
 		$this->expectException( WCPay\Exceptions\Invalid_Price_Exception::class );

From e37202f27452616347251bdd0d6effc2ad1158e2 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 8 Jan 2024 11:34:36 -0300
Subject: [PATCH 07/20] Removed filter + sanitizing POST string

---
 .../use-express-checkout-product-handler.js       | 15 +--------------
 client/payment-request/index.js                   | 15 ++-------------
 ...wc-payments-payment-request-button-handler.php |  2 +-
 3 files changed, 4 insertions(+), 28 deletions(-)

diff --git a/client/checkout/woopay/express-button/use-express-checkout-product-handler.js b/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
index 3df0c452888..0cc5271de7b 100644
--- a/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
+++ b/client/checkout/woopay/express-button/use-express-checkout-product-handler.js
@@ -2,7 +2,6 @@
  * External dependencies
  */
 import validator from 'validator';
-import { applyFilters } from '@wordpress/hooks';
 
 const useExpressCheckoutProductHandler = ( api ) => {
 	const getAttributes = () => {
@@ -105,24 +104,12 @@ const useExpressCheckoutProductHandler = ( api ) => {
 		}
 
 		const addOnForm = document.querySelector( 'form.cart' );
-		let allowedFieldNames = applyFilters(
-			'wcpayPaymentRequestAllowedFieldNames',
-			[]
-		);
-		// Ensure allowedFieldNames is an array.
-		if ( ! Array.isArray( allowedFieldNames ) ) {
-			allowedFieldNames = [ allowedFieldNames ];
-		}
 
 		if ( addOnForm ) {
 			const formData = new FormData( addOnForm );
 
 			formData.forEach( ( value, name ) => {
-				if (
-					/^addon-/.test( name ) ||
-					/^wc_/.test( name ) ||
-					allowedFieldNames.includes( name )
-				) {
+				if ( /^(addon-|wc_)/.test( name ) ) {
 					if ( /\[\]$/.test( name ) ) {
 						const fieldName = name.substring( 0, name.length - 2 );
 
diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index aabc47545de..4c382128fc2 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -3,7 +3,7 @@
  * External dependencies
  */
 import { __ } from '@wordpress/i18n';
-import { applyFilters, doAction } from '@wordpress/hooks';
+import { doAction } from '@wordpress/hooks';
 import { debounce } from 'lodash';
 /**
  * Internal dependencies
@@ -189,19 +189,8 @@ jQuery( ( $ ) => {
 
 			// Add addons data to the POST body
 			const formData = $( 'form.cart' ).serializeArray();
-			let allowedFieldNames = applyFilters(
-				'wcpayPaymentRequestAllowedFieldNames',
-				[]
-			);
-			// Ensure allowedFieldNames is an array.
-			if ( ! Array.isArray( allowedFieldNames ) ) {
-				allowedFieldNames = [ allowedFieldNames ];
-			}
 			$.each( formData, ( i, field ) => {
-				if (
-					allowedFieldNames.includes( field.name ) ||
-					/^(addon-|wc_)/.test( field.name )
-				) {
+				if ( /^(addon-|wc_)/.test( field.name ) ) {
 					if ( /\[\]$/.test( field.name ) ) {
 						const fieldName = field.name.substring(
 							0,
diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index e1d957cfd0a..bb4fe7ccc40 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -1062,7 +1062,7 @@ public function ajax_get_selected_product_data() {
 			$product      = wc_get_product( $product_id );
 			$variation_id = null;
 			$currency     = get_woocommerce_currency();
-			$is_deposit   = isset( $_POST['wc_deposit_option'] ) ? 'yes' === $_POST['wc_deposit_option'] : null;
+			$is_deposit   = isset( $_POST['wc_deposit_option'] ) ? 'yes' === sanitize_text_field( wp_unslash( $_POST['wc_deposit_option'] ) ) : null;
 
 			if ( ! is_a( $product, 'WC_Product' ) ) {
 				/* translators: product ID */

From 9014f3ca074778b63b94eb0ac103e309152ed6aa Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 8 Jan 2024 12:34:14 -0300
Subject: [PATCH 08/20] Added tests for payment request + deposits

---
 ...ayments-payment-request-button-handler.php |  2 +-
 ...lass-wc-helper-deposit-product-manager.php | 53 ++++++++++++--
 ...ayments-payment-request-button-handler.php | 69 +++++++++++++++++++
 3 files changed, 119 insertions(+), 5 deletions(-)

diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index bb4fe7ccc40..92a19a0138a 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -219,7 +219,7 @@ public function get_product_price( $product, ?bool $is_deposit = null ) {
 		if ( class_exists( 'WC_Deposits_Product_Manager' ) && WC_Deposits_Product_Manager::deposits_enabled( $product->get_id() ) ) {
 			// If is_deposit is null, we use the default deposit type for the product.
 			if ( is_null( $is_deposit ) ) {
-				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_type( $product->get_id() );
+				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_selected_type( $product->get_id() );
 			}
 			if ( $is_deposit ) {
 				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, 0, 'display', $base_price );
diff --git a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
index d0d8fb1398c..f4693cf9402 100644
--- a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
+++ b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
@@ -16,20 +16,65 @@ class WC_Deposits_Product_Manager {
 	 * @return mixed
 	 */
 	public static function get_deposit_type( $product ) {
-		if ( ! is_object( $product ) ) {
-			$product = apply_filters( 'test_deposit_get_product', wc_get_product( $product ) );
-		}
+		$product = self::get_product( $product );
 		return $product->get_meta( '_wc_deposit_type' );
 	}
 
+	/**
+	 * @param WC_Product_Simple|int $product
+	 * @return mixed
+	 */
+	public static function get_deposit_selected_type( $product ) {
+		$product = self::get_product( $product );
+		return $product->get_meta( '_wc_deposit_selected_type' );
+	}
+
 	/**
 	 * @param WC_Product_Simple|int $product
 	 * @return bool
 	 */
 	public static function deposits_enabled( $product ) {
+		$product = self::get_product( $product );
+		$setting = $product->get_meta( '_wc_deposit_enabled' );
+		return 'optional' === $setting || 'forced' === $setting;
+	}
+
+	/**
+	 * @param WC_Product_Simple|int $product
+	 * @return mixed
+	 */
+	public static function get_deposit_amount( $product, $plan_id = 0, $context = 'display', $product_price = null ) {
+		$product    = self::get_product( $product );
+		$type       = self::get_deposit_type( $product );
+		$percentage = 'percent' === $type;
+		$amount     = $product->get_meta( '_wc_deposit_amount' );
+
+		if ( ! $amount ) {
+			$amount = get_option( 'wc_deposits_default_amount' );
+		}
+
+		if ( ! $amount ) {
+			return false;
+		}
+
+		if ( $percentage ) {
+			$product_price = is_null( $product_price ) ? $product->get_price() : $product_price;
+			$amount        = ( $product_price / 100 ) * $amount;
+		}
+
+		$price = $amount;
+		return wc_format_decimal( $price );
+	}
+
+	/**
+	 * @param $product
+	 * @return mixed|null
+	 */
+	public static function get_product( $product ) {
 		if ( ! is_object( $product ) ) {
 			$product = apply_filters( 'test_deposit_get_product', wc_get_product( $product ) );
 		}
-		return true === $product->get_meta( '_wc_deposits_enabled' );
+
+		return $product;
 	}
 }
diff --git a/tests/unit/test-class-wc-payments-payment-request-button-handler.php b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
index a520ab2e10b..ed5b840cd64 100644
--- a/tests/unit/test-class-wc-payments-payment-request-button-handler.php
+++ b/tests/unit/test-class-wc-payments-payment-request-button-handler.php
@@ -345,6 +345,75 @@ public function test_get_product_price_returns_simple_price() {
 		);
 	}
 
+	public function test_get_product_price_returns_deposit_amount() {
+		$product_price = 10;
+		$this->simple_product->set_price( $product_price );
+
+		$this->assertEquals(
+			$product_price,
+			$this->pr->get_product_price( $this->simple_product, false ),
+			'When deposit is disabled, the regular price should be returned.'
+		);
+		$this->assertEquals(
+			$product_price,
+			$this->pr->get_product_price( $this->simple_product, true ),
+			'When deposit is enabled, but the product has no setting for deposit, the regular price should be returned.'
+		);
+
+		$this->simple_product->update_meta_data( '_wc_deposit_enabled', 'optional' );
+		$this->simple_product->update_meta_data( '_wc_deposit_type', 'percent' );
+		$this->simple_product->update_meta_data( '_wc_deposit_amount', 50 );
+		$this->simple_product->save_meta_data();
+
+		$this->assertEquals(
+			$product_price,
+			$this->pr->get_product_price( $this->simple_product, false ),
+			'When deposit is disabled, the regular price should be returned.'
+		);
+		$this->assertEquals(
+			$product_price * 0.5,
+			$this->pr->get_product_price( $this->simple_product, true ),
+			'When deposit is enabled, the deposit price should be returned.'
+		);
+
+		$this->simple_product->delete_meta_data( '_wc_deposit_amount' );
+		$this->simple_product->delete_meta_data( '_wc_deposit_type' );
+		$this->simple_product->delete_meta_data( '_wc_deposit_enabled' );
+		$this->simple_product->save_meta_data();
+	}
+
+	public function test_get_product_price_returns_deposit_amount_default_values() {
+		$product_price = 10;
+		$this->simple_product->set_price( $product_price );
+
+		$this->assertEquals(
+			$product_price,
+			$this->pr->get_product_price( $this->simple_product ),
+			'When deposit is disabled by default, the regular price should be returned.'
+		);
+
+		$this->simple_product->update_meta_data( '_wc_deposit_enabled', 'optional' );
+		$this->simple_product->update_meta_data( '_wc_deposit_type', 'percent' );
+		$this->simple_product->update_meta_data( '_wc_deposit_amount', 50 );
+		$this->simple_product->update_meta_data( '_wc_deposit_selected_type', 'full' );
+		$this->simple_product->save_meta_data();
+
+		$this->assertEquals(
+			$product_price,
+			$this->pr->get_product_price( $this->simple_product ),
+			'When deposit is optional and disabled by default, the regular price should be returned.'
+		);
+
+		$this->simple_product->update_meta_data( '_wc_deposit_selected_type', 'deposit' );
+		$this->simple_product->save_meta_data();
+
+		$this->assertEquals(
+			$product_price * 0.5,
+			$this->pr->get_product_price( $this->simple_product ),
+			'When deposit is optional and selected by default, the deposit price should be returned.'
+		);
+	}
+
 	/**
 	 * @dataProvider provide_get_product_tax_tests
 	 */

From 63afd86f54e4e06f61a7208973bea6bb6e570b15 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Tue, 9 Jan 2024 15:45:02 -0300
Subject: [PATCH 09/20] Apply suggestions from code review

Co-authored-by: Peter Wilson <519727+peterwilsoncc@users.noreply.github.com>
---
 client/payment-request/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index 4c382128fc2..00aee1b0e66 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -440,8 +440,8 @@ jQuery( ( $ ) => {
 
 			// WooCommerce Deposits support.
 			// Trigger the "woocommerce_variation_has_changed" event when the deposit option is changed.
-			$( 'input[name=wc_deposit_option]' ).on( 'change', () => {
-				$( 'form:has(input[name=wc_deposit_option])' ).trigger(
+			$( 'input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]' ).on( 'change', () => {
+				$( 'form' ).has('input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]').trigger(
 					'woocommerce_variation_has_changed'
 				);
 			} );

From 128de05b7a6fd8105abc67bb803e5a44e6c0731e Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Tue, 9 Jan 2024 16:20:04 -0300
Subject: [PATCH 10/20] Fixed existing tests

---
 .../compatibility/test-class-woocommerce-deposits.php         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/unit/multi-currency/compatibility/test-class-woocommerce-deposits.php b/tests/unit/multi-currency/compatibility/test-class-woocommerce-deposits.php
index e9e3c8a082e..136ede0b717 100644
--- a/tests/unit/multi-currency/compatibility/test-class-woocommerce-deposits.php
+++ b/tests/unit/multi-currency/compatibility/test-class-woocommerce-deposits.php
@@ -93,7 +93,7 @@ function( $input ) {
 
 		$amount  = 10.00;
 		$product = WC_Helper_Product::create_simple_product();
-		$product->add_meta_data( '_wc_deposits_enabled', true );
+		$product->add_meta_data( '_wc_deposit_enabled', 'optional' );
 		$product->add_meta_data( '_wc_deposit_type', 'plan' );
 		$product->save();
 
@@ -112,7 +112,7 @@ public function test_maybe_convert_product_prices_for_deposits() {
 			->willReturn( true );
 
 		$product = WC_Helper_Product::create_simple_product();
-		$product->add_meta_data( '_wc_deposits_enabled', true );
+		$product->add_meta_data( '_wc_deposit_enabled', 'optional' );
 		$product->add_meta_data( '_wc_deposit_type', 'plan' );
 		$product->save();
 

From 36f9e95f71a2ff655db372239cb520f59eb5ee25 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Tue, 9 Jan 2024 16:20:19 -0300
Subject: [PATCH 11/20] Added deposit plans support

---
 ...ayments-payment-request-button-handler.php | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index 0b8442002e5..f8509228d6f 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -203,11 +203,12 @@ public function get_button_height() {
 	 *
 	 * @param object $product WC_Product_* object.
 	 * @param bool   $is_deposit Whether customer is paying a deposit.
+	 * @param int    $deposit_plan_id The ID of the deposit plan.
 	 * @return mixed Total price.
 	 *
 	 * @throws Invalid_Price_Exception Whenever a product has no price.
 	 */
-	public function get_product_price( $product, ?bool $is_deposit = null ) {
+	public function get_product_price( $product, ?bool $is_deposit = null, int $deposit_plan_id = 0 ) {
 		// If prices should include tax, using tax inclusive price.
 		if ( $this->express_checkout_helper->cart_prices_include_tax() ) {
 			$base_price = wc_get_price_including_tax( $product );
@@ -222,7 +223,7 @@ public function get_product_price( $product, ?bool $is_deposit = null ) {
 				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_selected_type( $product->get_id() );
 			}
 			if ( $is_deposit ) {
-				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, 0, 'display', $base_price );
+				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, $deposit_plan_id, 'display', $base_price );
 			}
 		}
 
@@ -1057,13 +1058,14 @@ public function ajax_get_selected_product_data() {
 		check_ajax_referer( 'wcpay-get-selected-product-data', 'security' );
 
 		try {
-			$product_id   = isset( $_POST['product_id'] ) ? absint( $_POST['product_id'] ) : false;
-			$qty          = ! isset( $_POST['qty'] ) ? 1 : apply_filters( 'woocommerce_add_to_cart_quantity', absint( $_POST['qty'] ), $product_id );
-			$addon_value  = isset( $_POST['addon_value'] ) ? max( (float) $_POST['addon_value'], 0 ) : 0;
-			$product      = wc_get_product( $product_id );
-			$variation_id = null;
-			$currency     = get_woocommerce_currency();
-			$is_deposit   = isset( $_POST['wc_deposit_option'] ) ? 'yes' === sanitize_text_field( wp_unslash( $_POST['wc_deposit_option'] ) ) : null;
+			$product_id      = isset( $_POST['product_id'] ) ? absint( $_POST['product_id'] ) : false;
+			$qty             = ! isset( $_POST['qty'] ) ? 1 : apply_filters( 'woocommerce_add_to_cart_quantity', absint( $_POST['qty'] ), $product_id );
+			$addon_value     = isset( $_POST['addon_value'] ) ? max( (float) $_POST['addon_value'], 0 ) : 0;
+			$product         = wc_get_product( $product_id );
+			$variation_id    = null;
+			$currency        = get_woocommerce_currency();
+			$is_deposit      = isset( $_POST['wc_deposit_option'] ) ? 'yes' === sanitize_text_field( wp_unslash( $_POST['wc_deposit_option'] ) ) : null;
+			$deposit_plan_id = isset( $_POST['wc_deposit_payment_plan'] ) ? absint( $_POST['wc_deposit_payment_plan'] ) : 0;
 
 			if ( ! is_a( $product, 'WC_Product' ) ) {
 				/* translators: product ID */
@@ -1091,7 +1093,7 @@ public function ajax_get_selected_product_data() {
 				throw new Exception( sprintf( __( 'You cannot add that amount of "%1$s"; to the cart because there is not enough stock (%2$s remaining).', 'woocommerce-payments' ), $product->get_name(), wc_format_stock_quantity_for_display( $product->get_stock_quantity(), $product ) ) );
 			}
 
-			$price = $this->get_product_price( $product, $is_deposit );
+			$price = $this->get_product_price( $product, $is_deposit, $deposit_plan_id );
 			$total = $qty * $price + $addon_value;
 
 			$quantity_label = 1 < $qty ? ' (x' . $qty . ')' : '';

From 8ba894bfd2c7faed0326f374337d8f8aa15d2fb5 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Tue, 9 Jan 2024 16:31:05 -0300
Subject: [PATCH 12/20] JS style fix

---
 client/payment-request/index.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index 00aee1b0e66..0265ab7b3e3 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -440,10 +440,14 @@ jQuery( ( $ ) => {
 
 			// WooCommerce Deposits support.
 			// Trigger the "woocommerce_variation_has_changed" event when the deposit option is changed.
-			$( 'input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]' ).on( 'change', () => {
-				$( 'form' ).has('input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]').trigger(
-					'woocommerce_variation_has_changed'
-				);
+			$(
+				'input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]'
+			).on( 'change', () => {
+				$( 'form' )
+					.has(
+						'input[name=wc_deposit_option],input[name=wc_deposit_payment_plan]'
+					)
+					.trigger( 'woocommerce_variation_has_changed' );
 			} );
 
 			$( document.body ).on( 'woocommerce_variation_has_changed', () => {

From eff996efeafdabb02191ab5a71b96726137174ed Mon Sep 17 00:00:00 2001
From: Peter Wilson <519727+peterwilsoncc@users.noreply.github.com>
Date: Thu, 11 Jan 2024 10:44:00 +1100
Subject: [PATCH 13/20] Ensure payment plan is specified.

---
 .../class-wc-payments-payment-request-button-handler.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index f8509228d6f..0fce25f8e1b 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -223,6 +223,15 @@ public function get_product_price( $product, ?bool $is_deposit = null, int $depo
 				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_selected_type( $product->get_id() );
 			}
 			if ( $is_deposit ) {
+				$deposit_type = WC_Deposits_Product_Manager::get_deposit_type( $product->get_id() );
+				if ( 'plan' === $deposit_type && 0 === $deposit_plan_id ) {
+					// Default to first (default) plan if no plan is specified.
+					$available_plan_ids = WC_Deposits_Plans_Manager::get_plan_ids_for_product( $product->get_id() );
+					if ( ! empty( $available_plan_ids ) ) {
+						$deposit_plan_id = $available_plan_ids[0];
+					}
+				}
+
 				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, $deposit_plan_id, 'display', $base_price );
 			}
 		}

From 980c37418b9499812970ab57875523a6e2f335e6 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Wed, 10 Jan 2024 10:59:41 -0300
Subject: [PATCH 14/20] Fixed deposit plans frontend

---
 client/payment-request/index.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client/payment-request/index.js b/client/payment-request/index.js
index 5e2dd2ce4f4..7af7102d620 100644
--- a/client/payment-request/index.js
+++ b/client/payment-request/index.js
@@ -309,6 +309,11 @@ jQuery( ( $ ) => {
 					'input[name=wc_deposit_option]:checked'
 				).val();
 			}
+			if ( $( 'input[name=wc_deposit_payment_plan]' ).length ) {
+				depositObject.wc_deposit_payment_plan = $(
+					'input[name=wc_deposit_payment_plan]:checked'
+				).val();
+			}
 
 			const data = {
 				product_id: productId,

From 9c54d6b3a83866eb5097ba038885852b5ecede2a Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Wed, 31 Jan 2024 18:33:35 -0300
Subject: [PATCH 15/20] Fixed itemized amount for deposits and apple pay

---
 ...ss-wc-payments-express-checkout-button-helper.php | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
index 07ecaf1b3ac..feb0050ff28 100644
--- a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
+++ b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
@@ -132,11 +132,19 @@ public function build_display_items( $itemized_display_items = false ) {
 
 				$product_name = $cart_item['data']->get_name();
 
-				$item_tax = $this->cart_prices_include_tax() ? ( $cart_item['line_subtotal_tax'] ?? 0 ) : 0;
+				$item_tax      = $this->cart_prices_include_tax() ? ( $cart_item['line_subtotal_tax'] ?? 0 ) : 0;
+				$product_total = $amount + $item_tax;
+
+				// Currently deposits and express checkout are not 100% compatible.
+				// Taxes are not calculated correctly when a deposit is used.
+				// Check https://github.com/Automattic/woocommerce-payments/pull/7910 for more details.
+				if ( isset( $cart_item['is_deposit'] ) && $cart_item['is_deposit'] ) {
+					$product_total = $cart_item['deposit_amount'];
+				}
 
 				$item = [
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Payments_Utils::prepare_amount( $amount + $item_tax, $currency ),
+					'amount' => WC_Payments_Utils::prepare_amount( $product_total, $currency ),
 				];
 
 				$items[] = $item;

From 90a9c251bf7f5fdd71a66dc0f34c972599ea4aa2 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 5 Feb 2024 14:21:59 -0300
Subject: [PATCH 16/20] Checking if plan is available for product

---
 ...-payments-payment-request-button-handler.php | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index df4acf157fe..3cb54571878 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -225,16 +225,17 @@ public function get_product_price( $product, ?bool $is_deposit = null, int $depo
 				$is_deposit = 'deposit' === WC_Deposits_Product_Manager::get_deposit_selected_type( $product->get_id() );
 			}
 			if ( $is_deposit ) {
-				$deposit_type = WC_Deposits_Product_Manager::get_deposit_type( $product->get_id() );
-				if ( 'plan' === $deposit_type && 0 === $deposit_plan_id ) {
-					// Default to first (default) plan if no plan is specified.
-					$available_plan_ids = WC_Deposits_Plans_Manager::get_plan_ids_for_product( $product->get_id() );
-					if ( ! empty( $available_plan_ids ) ) {
-						$deposit_plan_id = $available_plan_ids[0];
-					}
+				$deposit_type       = WC_Deposits_Product_Manager::get_deposit_type( $product->get_id() );
+				$available_plan_ids = WC_Deposits_Plans_Manager::get_plan_ids_for_product( $product->get_id() );
+				// Default to first (default) plan if no plan is specified.
+				if ( 'plan' === $deposit_type && 0 === $deposit_plan_id && ! empty( $available_plan_ids ) ) {
+					$deposit_plan_id = $available_plan_ids[0];
 				}
 
-				$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, $deposit_plan_id, 'display', $base_price );
+				// Ensure the selected plan is available for the product.
+				if ( in_array( $deposit_plan_id, $available_plan_ids, true ) ) {
+					$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, $deposit_plan_id, 'display', $base_price );
+				}
 			}
 		}
 

From 804ebed2c96906d344e84ff930cb9c91e654e535 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 19 Feb 2024 15:00:00 -0300
Subject: [PATCH 17/20] Revert "Fixed itemized amount for deposits and apple
 pay"

This reverts commit 9c54d6b3a83866eb5097ba038885852b5ecede2a.
---
 ...ss-wc-payments-express-checkout-button-helper.php | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
index 554ec7028cb..4c42635d102 100644
--- a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
+++ b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
@@ -178,19 +178,11 @@ public function build_display_items( $itemized_display_items = false ) {
 
 				$product_name = $cart_item['data']->get_name();
 
-				$item_tax      = $this->cart_prices_include_tax() ? ( $cart_item['line_subtotal_tax'] ?? 0 ) : 0;
-				$product_total = $amount + $item_tax;
-
-				// Currently deposits and express checkout are not 100% compatible.
-				// Taxes are not calculated correctly when a deposit is used.
-				// Check https://github.com/Automattic/woocommerce-payments/pull/7910 for more details.
-				if ( isset( $cart_item['is_deposit'] ) && $cart_item['is_deposit'] ) {
-					$product_total = $cart_item['deposit_amount'];
-				}
+				$item_tax = $this->cart_prices_include_tax() ? ( $cart_item['line_subtotal_tax'] ?? 0 ) : 0;
 
 				$item = [
 					'label'  => $product_name . $quantity_label,
-					'amount' => WC_Payments_Utils::prepare_amount( $product_total, $currency ),
+					'amount' => WC_Payments_Utils::prepare_amount( $amount + $item_tax, $currency ),
 				];
 
 				$items[] = $item;

From 369509e13db8cb22bb1d702087c823079cb5876a Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 19 Feb 2024 15:14:59 -0300
Subject: [PATCH 18/20] Fixed wcpay_payment_request_hide_itemization filter

---
 .../class-wc-payments-express-checkout-button-helper.php        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
index 4c42635d102..617a0fff352 100644
--- a/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
+++ b/includes/express-checkout/class-wc-payments-express-checkout-button-helper.php
@@ -170,7 +170,7 @@ public function build_display_items( $itemized_display_items = false ) {
 		$currency  = get_woocommerce_currency();
 
 		// Default show only subtotal instead of itemization.
-		if ( ! apply_filters( 'wcpay_payment_request_hide_itemization', true ) || $itemized_display_items ) {
+		if ( ! apply_filters( 'wcpay_payment_request_hide_itemization', ! $itemized_display_items ) ) {
 			foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
 				$amount         = $cart_item['line_subtotal'];
 				$subtotal      += $cart_item['line_subtotal'];

From 1663d7620598435edf80fd718c07e014f2557c20 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Mon, 19 Feb 2024 15:49:30 -0300
Subject: [PATCH 19/20] Only checking if the plan is valid when using a plan

---
 includes/class-wc-payments-payment-request-button-handler.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/class-wc-payments-payment-request-button-handler.php b/includes/class-wc-payments-payment-request-button-handler.php
index 3c679d15d2b..43295f01f66 100644
--- a/includes/class-wc-payments-payment-request-button-handler.php
+++ b/includes/class-wc-payments-payment-request-button-handler.php
@@ -233,7 +233,7 @@ public function get_product_price( $product, ?bool $is_deposit = null, int $depo
 				}
 
 				// Ensure the selected plan is available for the product.
-				if ( in_array( $deposit_plan_id, $available_plan_ids, true ) ) {
+				if ( 0 === $deposit_plan_id || in_array( $deposit_plan_id, $available_plan_ids, true ) ) {
 					$base_price = WC_Deposits_Product_Manager::get_deposit_amount( $product, $deposit_plan_id, 'display', $base_price );
 				}
 			}

From 5d8c4aedf704264a317d3190e3b80ee710d02690 Mon Sep 17 00:00:00 2001
From: Guilherme Pressutto <gpressutto5@gmail.com>
Date: Tue, 20 Feb 2024 15:41:38 -0300
Subject: [PATCH 20/20] Fixed tests

---
 ...lass-wc-helper-deposit-product-manager.php | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
index f4693cf9402..eefde552fb7 100644
--- a/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
+++ b/tests/unit/helpers/class-wc-helper-deposit-product-manager.php
@@ -5,6 +5,8 @@
  * @package WooCommerce\Payments\Tests
  */
 
+// phpcs:disable Generic.Files.OneObjectStructurePerFile.MultipleFound
+
 /**
  * Class WC_Deposits_Product_Manager.
  *
@@ -78,3 +80,30 @@ public static function get_product( $product ) {
 		return $product;
 	}
 }
+
+/**
+ * Class WC_Deposits_Plans_Manager.
+ */
+class WC_Deposits_Plans_Manager {
+	/**
+	 * Get plan ids assigned to a product.
+	 *
+	 * @param  int $product_id Product ID.
+	 * @return int[]
+	 */
+	public static function get_plan_ids_for_product( $product_id ) {
+		$product = WC_Deposits_Product_Manager::get_product( $product_id );
+		$map     = array_map( 'absint', array_filter( (array) $product->get_meta( '_wc_deposit_payment_plans' ) ) );
+		if ( count( $map ) <= 0 ) {
+			$map = self::get_default_plan_ids();
+		}
+		return $map;
+	}
+
+	/**
+	 * Get the default plan IDs.
+	 */
+	public static function get_default_plan_ids() {
+		return array_map( 'absint', array_filter( (array) get_option( 'wc_deposits_default_plans', [] ) ) );
+	}
+}