wordpress-turnstile

commit 6cb482abd12630480a676b6a826a4730caf86cd4
parent e61027f22fd27d34db4e41e8063ecd01333ecfbd
Author: Christian Grothoff <christian@grothoff.org>
Date:   Wed,  5 Nov 2025 20:27:15 +0100

add price/subscription hints on payment page

Diffstat:
M
includes/class-content-filter.php
 | 
10
++++++++++
M
includes/class-price-category.php
 | 
50
++++++++++++++++++++++++++++++++++++++++++++++++++
M
includes/class-taler-merchant-api.php
 | 
4
++++

3 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/includes/class-content-filter.php b/includes/class-content-filter.php
@@ -194,6 +194,8 @@ class Taler_Content_Filter {
         $order_id = $order_info['order_id'];
         $session_id = $order_info['session_id'];
         $payment_url = $order_info['payment_url'];
+        $price_hint = $order_info['price_hint'];
+        $subscription_hint = $order_info['subscription_hint'];
 
         ob_start();
         ?>
@@ -220,6 +222,14 @@ class Taler_Content_Filter {
                 </div>
             </div>
 
+            <h4 class="price_hint_title"><?php esc_html_e('Price per article', 'taler-turnstile'); ?></h3>
+            <div class="taler-price-per-article-hint">
+               <?php esc_html_e($price_hint); ?>
+            </div>
+            <h4 class="subscription_hint_title"><?php esc_html_e('Acceptable subscriptions', 'taler-turnstile'); ?></h3>
+            <div class="taler-available-subscription-hint">
+               <?php esc_html_e($subscription_hint); ?>
+            </div>
             <!-- div class="taler-payment-info">
                 <p class="taler-order-id">
                     /* translators: placeholder is the order ID of the merchant backend */
diff --git a/includes/class-price-category.php b/includes/class-price-category.php
@@ -67,6 +67,56 @@ class Taler_Price_Category {
     }
 
     /**
+     * Gets a brief hint to display about non-subscriber prices.
+     */
+    public static function getPriceHint($id) {
+        $category = self::get($id);
+        if (!$category || !isset($category['prices'])) {
+            return __(/* translators: Need to buy a subscription */ 'Not sold individually');
+        }
+
+        $prices = $category['prices'];
+        $nosub = $prices['%none%'];
+        $rval = NULL;
+        foreach ($nosub as $currency => $price) {
+            if (NULL === $rval)
+            {
+                $rval = "$price $currency";
+            }
+            else
+            {
+                $rval = "$price $currency, " . $rval;
+            }
+        }
+        return $rval ?? __(/* translators: Need to buy a subscription */ 'Not sold individually');
+    }
+
+    /**
+     * Gets a brief hint to display about applicable subscriptions.
+     */
+    public static function getSubscriptionHint($id) {
+        $category = self::get($id);
+        if (!$category || !isset($category['prices'])) {
+            return __(/* No subscriptions */ 'None');
+        }
+        $prices = $category['prices'];
+        $rval = NULL;
+        foreach ($prices as $subscription => $details) {
+            if ('%none%' === $subscription)
+                continue;
+            if (NULL === $rval)
+            {
+                $rval = $subscription;
+            }
+            else
+            {
+                $rval = $subscription . ", " . $rval;
+            }
+        }
+        return $rval ?? __(/* translators: No subscriptions */ 'None');
+    }
+
+    /**
      * Get payment choices for GNU Taler v1 contracts
      */
     public static function get_payment_choices($id, $subscriptions) {
diff --git a/includes/class-taler-merchant-api.php b/includes/class-taler-merchant-api.php
@@ -467,6 +467,8 @@ class Taler_Merchant_API {
             error_log('No price category, cannot setup new order');
             return false;
         }
+        $price_hint = Taler_Price_Category::getPriceHint($price_category_id);
+        $subscription_hint = Taler_Price_Category::getSubscriptionHint($price_category_id);
 
         $subscriptions = Taler_Merchant_API::get_subscriptions();
         $choices = Taler_Price_Category::get_payment_choices($price_category_id, $subscriptions);
@@ -545,6 +547,8 @@ class Taler_Merchant_API {
                 'order_id' => $order_id,
                 'payment_url' => $backend_url . 'orders/' . $order_id,
                 'order_expiration' => $order_expiration,
+                'price_hint' => $price_hint,
+                'subscription_hint' => $subscription_hint,
                 'paid' => false,
                 'session_id' => $hashed_session_id
             );