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wp-content/plugins/woocommerce-payments/includes/payment-methods/class-klarna-payment-method.php

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+<?php
+/**
+ * Class Affirm_Payment_Method
+ *
+ * @package WCPay\Payment_Methods
+ */
+
+namespace WCPay\Payment_Methods;
+
+use WC_Payments_Token_Service;
+use WC_Payments_Utils;
+use WCPay\Constants\Country_Code;
+use WCPay\Constants\Currency_Code;
+
+/**
+ * Affirm Payment Method class extending UPE base class
+ */
+class Klarna_Payment_Method extends UPE_Payment_Method {
+
+	const PAYMENT_METHOD_STRIPE_ID = 'klarna';
+
+	/**
+	 * Constructor for Klarna payment method
+	 *
+	 * @param WC_Payments_Token_Service $token_service Token class instance.
+	 */
+	public function __construct( $token_service ) {
+		parent::__construct( $token_service );
+		$this->stripe_id                    = self::PAYMENT_METHOD_STRIPE_ID;
+		$this->is_reusable                  = false;
+		$this->is_bnpl                      = true;
+		$this->icon_url                     = plugins_url( 'assets/images/payment-methods/klarna-pill.svg', WCPAY_PLUGIN_FILE );
+		$this->currencies                   = [ Currency_Code::UNITED_STATES_DOLLAR, Currency_Code::POUND_STERLING, Currency_Code::EURO, Currency_Code::DANISH_KRONE, Currency_Code::NORWEGIAN_KRONE, Currency_Code::SWEDISH_KRONA ];
+		$this->accept_only_domestic_payment = true;
+		$this->countries                    = [ Country_Code::UNITED_STATES, Country_Code::UNITED_KINGDOM, Country_Code::AUSTRIA, Country_Code::GERMANY, Country_Code::NETHERLANDS, Country_Code::BELGIUM, Country_Code::SPAIN, Country_Code::ITALY, Country_Code::IRELAND, Country_Code::DENMARK, Country_Code::FINLAND, Country_Code::NORWAY, Country_Code::SWEDEN, Country_Code::FRANCE ];
+		$this->limits_per_currency          = WC_Payments_Utils::get_bnpl_limits_per_currency( self::PAYMENT_METHOD_STRIPE_ID );
+	}
+
+	/**
+	 * Returns payment method title
+	 *
+	 * @param string|null $account_country Country of merchants account.
+	 * @param array|false $payment_details Optional payment details from charge object.
+	 *
+	 * @return string
+	 */
+	public function get_title( ?string $account_country = null, $payment_details = false ) {
+		return __( 'Klarna', 'woocommerce-payments' );
+	}
+
+	/**
+	 * Returns payment method supported countries.
+	 *
+	 * For Klarna we need to include additional logic to support transactions between countries in the EEA,
+	 * UK, and Switzerland.
+	 *
+	 * @return array
+	 */
+	public function get_countries() {
+		$account         = \WC_Payments::get_account_service()->get_cached_account_data();
+		$account_country = isset( $account['country'] ) ? strtoupper( $account['country'] ) : '';
+
+		// Countries in the EEA can transact across all other EEA countries. This includes Switzerland and the UK who aren't strictly in the EU.
+		$eea_countries = array_merge(
+			WC_Payments_Utils::get_european_economic_area_countries(),
+			[ Country_Code::SWITZERLAND, Country_Code::UNITED_KINGDOM ]
+		);
+
+		// If the merchant is in the EEA, UK, or Switzerland, only the countries that have the same domestic currency as the store currency will be supported.
+		if ( in_array( $account_country, $eea_countries, true ) ) {
+			$store_currency = strtoupper( get_woocommerce_currency() );
+
+			$countries_that_support_store_currency = array_keys( $this->limits_per_currency[ $store_currency ] );
+
+			return array_values( array_intersect( $eea_countries, $countries_that_support_store_currency ) );
+		}
+
+		return parent::get_countries();
+	}
+
+	/**
+	 * Returns testing credentials to be printed at checkout in test mode.
+	 *
+	 * @param string $account_country The country of the account.
+	 * @return string
+	 */
+	public function get_testing_instructions( string $account_country ) {
+		return '';
+	}
+}