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wp-content/plugins/jetpack-boost/app/lib/class-premium-pricing.php

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+<?php
+
+namespace Automattic\Jetpack_Boost\Lib;
+
+use Automattic\Jetpack\My_Jetpack\Products\Boost;
+use Automattic\Jetpack\My_Jetpack\Wpcom_Products;
+use Automattic\Jetpack\Status;
+
+class Premium_Pricing {
+	/**
+	 * Get an object containing the yearly pricing information for Jetpack Boost.
+	 *
+	 * Used by Jetpack_Boost js constants and data sync.
+	 */
+	public static function get_yearly_pricing() {
+		$yearly_pricing = Wpcom_Products::get_product_pricing( Boost::UPGRADED_TIER_PRODUCT_SLUG );
+
+		if ( empty( $yearly_pricing ) ) {
+			// In offline mode, we don't have access to the pricing data and it's not an error.
+			if ( ! ( new Status() )->is_offline_mode() ) {
+				Analytics::record_user_event( 'upgrade_price_missing', array( 'error_message' => 'Missing pricing information on benefits interstitial page.' ) );
+			}
+			return null;
+		}
+
+		return array(
+			'priceBefore'         => $yearly_pricing['full_price'],
+			'priceAfter'          => $yearly_pricing['discount_price'],
+			'currencyCode'        => $yearly_pricing['currency_code'],
+			'isIntroductoryOffer' => $yearly_pricing['is_introductory_offer'] === true,
+		);
+	}
+}