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ðŸ“„ class-wc-gateway-paystack-blocks-support.php(3.25 KB)
ðŸ“„ class-wc-gateway-paystack-subscriptions.php(4.46 KB)
ðŸ“„ class-wc-gateway-paystack.php(57.01 KB)
ðŸ“ custom-gateways

Editing: class-wc-gateway-paystack-subscriptions.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Class WC_Gateway_Paystack_Subscriptions
 */
class WC_Gateway_Paystack_Subscriptions extends WC_Gateway_Paystack {

/**
	 * Constructor
	 */
	public function __construct() {

parent::__construct();

if ( class_exists( 'WC_Subscriptions_Order' ) ) {

add_action( 'woocommerce_scheduled_subscription_payment_' . $this->id, array( $this, 'scheduled_subscription_payment' ), 10, 2 );

}
	}

/**
	 * Process a trial subscription order with 0 total.
	 *
	 * @param int $order_id WC Order ID.
	 *
	 * @return array|void
	 */
	public function process_payment( $order_id ) {

$order = wc_get_order( $order_id );

// Check for trial subscription order with 0 total.
		if ( $this->order_contains_subscription( $order ) && $order->get_total() == 0 ) {

$order->payment_complete();

$order->add_order_note( __( 'This subscription has a free trial, reason for the 0 amount', 'woo-paystack' ) );

return array(
				'result'   => 'success',
				'redirect' => $this->get_return_url( $order ),
			);

} else {

return parent::process_payment( $order_id );

}

/**
	 * Process a subscription renewal.
	 *
	 * @param float    $amount_to_charge Subscription payment amount.
	 * @param WC_Order $renewal_order Renewal Order.
	 */
	public function scheduled_subscription_payment( $amount_to_charge, $renewal_order ) {

$response = $this->process_subscription_payment( $renewal_order, $amount_to_charge );

if ( is_wp_error( $response ) ) {

$renewal_order->update_status( 'failed', sprintf( __( 'Paystack Transaction Failed (%s)', 'woo-paystack' ), $response->get_error_message() ) );

}

/**
	 * Process a subscription renewal payment.
	 *
	 * @param WC_Order $order  Subscription renewal order.
	 * @param float    $amount Subscription payment amount.
	 *
	 * @return bool|WP_Error
	 */
	public function process_subscription_payment( $order, $amount ) {

$order_id = $order->get_id();

$paystack_token = $order->get_meta( '_paystack_token' );

if ( ! empty( $paystack_token ) ) {

$order_amount = $amount * 100;
			$txnref       = $order_id . '_' . time();

$order->update_meta_data( '_paystack_txn_ref', $txnref );
			$order->save();

$paystack_url = 'https://api.paystack.co/transaction/charge_authorization';

$headers = array(
				'Content-Type'  => 'application/json',
				'Authorization' => 'Bearer ' . $this->secret_key,
			);

$metadata['custom_fields'] = $this->get_custom_fields( $order_id );

if ( strpos( $paystack_token, '###' ) !== false ) {
				$payment_token  = explode( '###', $paystack_token );
				$auth_code      = $payment_token[0];
				$customer_email = $payment_token[1];
			} else {
				$auth_code      = $paystack_token;
				$customer_email = $order->get_billing_email();
			}

$body = array(
				'email'              => $customer_email,
				'amount'             => absint( $order_amount ),
				'metadata'           => $metadata,
				'authorization_code' => $auth_code,
				'reference'          => $txnref,
				'currency'           => $order->get_currency(),
			);

$args = array(
				'body'    => json_encode( $body ),
				'headers' => $headers,
				'timeout' => 60,
			);

$request = wp_remote_post( $paystack_url, $args );

if ( ! is_wp_error( $request ) && 200 === wp_remote_retrieve_response_code( $request ) ) {

$paystack_response = json_decode( wp_remote_retrieve_body( $request ) );

if ( 'success' == $paystack_response->data->status ) {

$paystack_ref = $paystack_response->data->reference;

$order->payment_complete( $paystack_ref );

$message = sprintf( __( 'Payment via Paystack successful (Transaction Reference: %s)', 'woo-paystack' ), $paystack_ref );

$order->add_order_note( $message );

if ( parent::is_autocomplete_order_enabled( $order ) ) {
						$order->update_status( 'completed' );
					}

return true;

} else {

$gateway_response = __( 'Paystack payment failed.', 'woo-paystack' );

if ( isset( $paystack_response->data->gateway_response ) && ! empty( $paystack_response->data->gateway_response ) ) {
						$gateway_response = sprintf( __( 'Paystack payment failed. Reason: %s', 'woo-paystack' ), $paystack_response->data->gateway_response );
					}

return new WP_Error( 'paystack_error', $gateway_response );

}
			}
		}

return new WP_Error( 'paystack_error', __( 'This subscription can&#39;t be renewed automatically. The customer will have to login to their account to renew their subscription', 'woo-paystack' ) );

}

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Editing: class-wc-gateway-paystack-subscriptions.php

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