<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

add_action( 'plugins_loaded', 'init_wc_gateway_afterpay_invoice_class' );
add_filter( 'woocommerce_payment_gateways', 'add_afterpay_invoice_method' );

/**
 * Initialize AfterPay Invoice payment gateway
 *
 * @wp_hook plugins_loaded
 */
function init_wc_gateway_afterpay_invoice_class() {
	/**
	 * AfterPay Invoice Payment Gateway.
	 *
	 * Provides AfterPay Invoice Payment Gateway for WooCommerce.
	 *
	 * @class       WC_Gateway_AfterPay_Invoice
	 * @extends     WC_Gateway_AfterPay_Factory
	 * @version     0.1
	 * @author      Krokedil
	 */
	class WC_Gateway_AfterPay_Invoice extends WC_Gateway_AfterPay_Factory {

		/**
		 * Constructor for the gateway.
		 */
		public function __construct() {
			$this->id                 = 'afterpay_invoice';
			$this->method_title       = __( 'AfterPay Invoice', 'afterpay-nordics-for-woocommerce' );
			$this->has_fields         = true;
			$this->method_description = __( 'Allows payments through ' . $this->method_title . '.', 'afterpay-nordics-for-woocommerce' );

			// Define user set variables
			$this->title          = $this->get_option( 'title' );
			$this->description_se = $this->get_option( 'description_se' );
			$this->description_no = $this->get_option( 'description_no' );
			$this->description_de = $this->get_option( 'description_de' );
			$this->debug          = $this->get_option( 'debug' );
			$this->client_id_se   = $this->get_option( 'client_id_se' );
			$this->username_se    = $this->get_option( 'username_se' );
			$this->password_se    = $this->get_option( 'password_se' );
			$this->client_id_no   = $this->get_option( 'client_id_no' );
			$this->username_no    = $this->get_option( 'username_no' );
			$this->password_no    = $this->get_option( 'password_no' );
			$this->invoice_fee_id = $this->get_option( 'invoice_fee_id' );
			$this->debug          = $this->get_option( 'debug' );
			$this->api_key        = $this->get_option( 'api_key' );
			$this->x_auth_key_se  = $this->get_option( 'x_auth_key_se' );
			$this->x_auth_key_no  = $this->get_option( 'x_auth_key_no' );
			$this->x_auth_key_de  = $this->get_option( 'x_auth_key_de' );
			$this->testmode       = $this->get_option( 'testmode' );

			// Invoice fee
			if ( '' == $this->invoice_fee_id ) {
				$this->invoice_fee_id = 0;
			}

			// Set country and merchant credentials based on currency.
			switch ( get_woocommerce_currency() ) {
				case 'NOK':
					$this->afterpay_country = 'NO';
					$this->client_id        = $this->client_id_no;
					$this->username         = $this->username_no;
					$this->password         = $this->password_no;
					$this->x_auth_key       = $this->x_auth_key_no;
					break;
				case 'SEK':
					$this->afterpay_country = 'SE';
					$this->client_id        = $this->client_id_se;
					$this->username         = $this->username_se;
					$this->password         = $this->password_se;
					$this->x_auth_key       = $this->x_auth_key_se;
					break;
				case 'EUR':
					$this->afterpay_country = 'DE';
					$this->x_auth_key       = $this->x_auth_key_de;
					break;
				default:
					$this->afterpay_country = '';
					$this->client_id        = '';
					$this->username         = '';
					$this->password         = '';
					$this->x_auth_key       = '';
			}

			// Invoice fee
			if ( '' == $this->invoice_fee_id ) {
				$this->invoice_fee_id = 0;
			}

			// Load the settings.
			$this->init_form_fields();
			$this->init_settings();

			$this->supports = array(
				'products',
				'refunds',
				'subscriptions',
				'subscription_cancellation',
				'subscription_suspension',
				'subscription_reactivation',
				'subscription_amount_changes',
				'subscription_date_changes',
				'subscription_payment_method_change_admin',
				'subscription_payment_method_change',
				'multiple_subscriptions',
			);

			// Actions
			add_action(
				'woocommerce_update_options_payment_gateways_' . $this->id,
				array(
					$this,
					'process_admin_options',
				)
			);
			add_action(
				'woocommerce_thankyou',
				array(
					$this,
					'clear_afterpay_sessions',
				)
			);
			add_action(
				'woocommerce_checkout_process',
				array(
					$this,
					'process_checkout_fields',
				)
			);

			add_action(
				'woocommerce_scheduled_subscription_payment_' . $this->id,
				array(
					$this,
					'scheduled_subscription_payment',
				),
				10,
				3
			);

		}

		/**
		 * Display payment fields for Part Payment
		 */
		public function payment_fields() {
			parent::payment_fields();

			echo $this->get_afterpay_info();
		}

	}

}

/**
 * Add AfterPay payment gateway
 *
 * @wp_hook woocommerce_payment_gateways
 *
 * @param  $methods Array All registered payment methods
 *
 * @return $methods Array All registered payment methods
 */
function add_afterpay_invoice_method( $methods ) {
	$methods[] = 'WC_Gateway_AfterPay_Invoice';

	return $methods;
}