From 845d86eae334ff392371e1cb556be8a5b39fe4c0 Mon Sep 17 00:00:00 2001
From: Michael Uno <michael2@github.com>
Date: Sat, 30 Sep 2023 14:04:06 +0900
Subject: [PATCH] Feature: Add the ability to make the Add to Cart button a
 mere external link

UI is not implemented yet and with this change it forces the plugin to use this feature at the moment.

Resolves #5
---
 auto-amazon-links-woocommerce-products.php    |   1 +
 includes/c.cart-to-link/Loader.php            |  28 ++++
 .../c.cart-to-link/events/CustomCartLinks.php | 127 ++++++++++++++++++
 includes/class-map.php                        |   2 +
 4 files changed, 158 insertions(+)
 create mode 100644 includes/c.cart-to-link/Loader.php
 create mode 100644 includes/c.cart-to-link/events/CustomCartLinks.php

diff --git a/auto-amazon-links-woocommerce-products.php b/auto-amazon-links-woocommerce-products.php
index 86ae5f9..1ea237f 100644
--- a/auto-amazon-links-woocommerce-products.php
+++ b/auto-amazon-links-woocommerce-products.php
@@ -33,6 +33,7 @@ class App {
     public $aMembers = [
         __NAMESPACE__ . '\\Converter\\Loader' => null,
         __NAMESPACE__ . '\\Buttons\\Loader' => null,
+        __NAMESPACE__ . '\\CartToLink\\Loader' => null,
         __NAMESPACE__ . '\\Events\\Filters\\ProductThumbnails' => null,
         __NAMESPACE__ . '\\Events\\Filters\\PriceHTML' => null,
         __NAMESPACE__ . '\\Events\\Redirects\\Checkout' => null,
diff --git a/includes/c.cart-to-link/Loader.php b/includes/c.cart-to-link/Loader.php
new file mode 100644
index 0000000..b87e5f8
--- /dev/null
+++ b/includes/c.cart-to-link/Loader.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace AutoAmazonLinks\WooCommerceProducts\CartToLink;
+
+use AutoAmazonLinks\WooCommerceProducts\Commons\LoaderAbstract;
+
+/**
+ * Converts the cart button to a simple external Amazon link
+ *
+ * @since 1.1.0
+ */
+class Loader extends LoaderAbstract {
+
+    /**
+     * @since 1.1.0
+     * @var   string
+     */
+    static public $sDirPath = __DIR__;
+
+    /**
+     * @since 1.1.0
+     * @var   string[] A list of component members.
+     */
+    public $aMembers = [
+         __NAMESPACE__ . '\\Events\\CustomCartLinks'   => null,
+    ];
+
+}
\ No newline at end of file
diff --git a/includes/c.cart-to-link/events/CustomCartLinks.php b/includes/c.cart-to-link/events/CustomCartLinks.php
new file mode 100644
index 0000000..5d96a3c
--- /dev/null
+++ b/includes/c.cart-to-link/events/CustomCartLinks.php
@@ -0,0 +1,127 @@
+<?php
+
+namespace AutoAmazonLinks\WooCommerceProducts\CartToLink\Events;
+
+use AutoAmazonLinks\WooCommerceProducts\Commons\MemberInterface;
+
+/**
+ * Provides means to customize the Add-to-Cart button links
+ *
+ * Some users might want just link to the product page rather than adding the product to the on-site cart.
+ *
+ * @since 1.1.0
+ */
+class CustomCartLinks implements MemberInterface {
+
+    /**
+     * @since 1.1.0
+     */
+    public function run() {
+
+        add_filter( 'woocommerce_loop_add_to_cart_link', [ $this, 'replyToEditAddToCartButtonLinkInLoops' ], 100, 3);
+
+        // Add to Cart text
+        add_filter( 'woocommerce_product_single_add_to_cart_text', [ $this, 'replyToEditAddToCartTextSingle' ], 100, 2 );
+        add_filter( 'woocommerce_product_add_to_cart_text', [ $this, 'replyToEditAddToCartTextInLoops' ], 100, 2 );
+
+        // Replace the Add to Cart form with a button
+        add_filter( 'woocommerce_before_add_to_cart_form', [ $this, 'replyToAddBeforeCartForm' ] );
+        add_filter( 'woocommerce_after_add_to_cart_form', [ $this, 'replyToAddAfterCartForm' ] );
+
+        // Add to Cart url
+        add_filter( 'woocommerce_product_add_to_cart_url', [ $this, 'replyToEditAddToCartURL' ], 10, 2 );
+
+    }
+
+    /**
+     * @since  1.1.0
+     * @param  \WC_Product $oProduct
+     * @return string The modified `<a>` tag.
+     */
+    public function replyToEditAddToCartButtonLinkInLoops( $sLink, $oProduct, $aArguments ) {
+        return "<a href='" . esc_url( $this->___getCartHref( $oProduct ) ) .  "' rel='nofollow' target='_blank' class='button product_type_simple add_to_cart_button text_replaceable' title='" . esc_attr( $oProduct->get_title() ) . "' >"
+                . $this->___getCartButtonLabel()
+            .  "</a>";
+    }
+
+    /**
+     * @since  1.1.0
+     * @return string
+     */
+    public function replyToEditAddToCartTextSingle( $sButtonText, $oProduct ) {
+        return $this->___getCartButtonLabel();
+    }
+
+    /**
+     * @since  1.1.0
+     * @return string
+     */
+    public function replyToEditAddToCartTextInLoops( $sButtonText, $oProduct ) {
+        return $this->___getCartButtonLabel();
+    }
+
+     /**
+     * @since  1.1.0
+     * @return void
+     */
+    public function replyToAddBeforeCartForm() {
+        echo "<div class='add-to-cart-form' style='display:none;'>";
+    }
+    /**
+     * @since  1.1.0
+     * @return void
+     */
+    public function replyToAddAfterCartForm() {
+        echo "</div>"; // end hidden
+
+        if ( empty( $GLOBALS[ 'product' ] ) ) {
+            return;
+        }
+
+        // Add the "Add to Cart" link
+        echo "<form class='cart'>"
+                . "<a href=" . esc_url( $this->___getCartHref( $GLOBALS[ 'product' ] ) ) . " class='button alt' rel='nofollow' target='_blank' title='" . esc_attr( $GLOBALS[ 'product' ]->get_title() ) . "'>"
+                    . $this->___getCartButtonLabel()
+                . "</a>"
+            . "</form>";
+    }
+
+    /**
+     * Modifies the Add to Cart URL
+     *
+     * The Store Front WooCommerce default theme adds a sticky form at the top and this filter is needed for it.
+     *
+     * @param  string $sPermalink
+     * @param  \WC_Product $oProduct
+     * @return string
+     * @sinec  1.1.0
+     */
+    public function replyToEditAddToCartURL( $sPermalink, $oProduct ) {
+        return $this->___getCartHref( $oProduct );
+    }
+
+    /**
+     * @since  1.1.0
+     * @return string
+     */
+    private function ___getCartButtonLabel() {
+        return __( 'Buy Now', 'amazon-auto-links' );
+    }
+
+    /**
+     * @since  1.1.0
+     * @param  \WC_Product $oProduct
+     * @return string
+     */
+    private function ___getCartHref( $oProduct ) {
+        $_oUtil   = new \AmazonAutoLinks_PluginUtility();
+        $_sSKU    = $oProduct->get_sku(); // ASIN|locale|currency|language
+        $_aItem   = explode( '|', $_sSKU );
+        $_sASIN   = $_oUtil->getElement( $_aItem, 0 );
+        $_sLocale = $_oUtil->getElement( $_aItem, 1 );
+        $_oOption = \AmazonAutoLinks_Option::getInstance();
+        $_oLocale = new \AmazonAutoLinks_Locale( $_sLocale );
+        return $_oLocale->getMarketPlaceURL( 'dp/' . $_sASIN . '/?tag=' . $_oOption->getAssociateID( $_sLocale ) );
+    }
+
+}
\ No newline at end of file
diff --git a/includes/class-map.php b/includes/class-map.php
index 07ea15e..430517f 100644
--- a/includes/class-map.php
+++ b/includes/class-map.php
@@ -4,6 +4,8 @@
     "AutoAmazonLinks\\WooCommerceProducts\\Buttons\\Loader" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.buttons/Loader.php", 
     "AutoAmazonLinks\\WooCommerceProducts\\Buttons\\Events\\DynamicProductCreation" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.buttons/events/DynamicProductCreation.php", 
     "AutoAmazonLinks\\WooCommerceProducts\\Buttons\\Events\\ItemFormatTags" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.buttons/events/ItemFormatTags.php", 
+    "AutoAmazonLinks\\WooCommerceProducts\\CartToLink\\Loader" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.cart-to-link/Loader.php", 
+    "AutoAmazonLinks\\WooCommerceProducts\\CartToLink\\Events\\CustomCartLinks" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.cart-to-link/events/CustomCartLinks.php", 
     "AutoAmazonLinks\\WooCommerceProducts\\Converter\\Loader" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.converter/Loader.php", 
     "AutoAmazonLinks\\WooCommerceProducts\\Converter\\Admin\\FormFields\\Main" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.converter/admin/form-fields/Main.php", 
     "AutoAmazonLinks\\WooCommerceProducts\\Converter\\Admin\\PostMetaBoxes\\Main" => \AutoAmazonLinks\WooCommerceProducts\App::$sDirPath . "/includes/c.converter/admin/post-meta-boxes/Main.php",