AyeCode / invoicing

includes/gateways/class-getpaid-payment-gateway.php

Indentation +616 added lines, -616 removed lines

@@ -13,464 +13,464 @@ 
  */
 abstract class GetPaid_Payment_Gateway {
 
-	/**
-	 * Set if the place checkout button should be renamed on selection.
-	 *
-	 * @var string
-	 */
-	public $checkout_button_text;
-
-	/**
-	 * Boolean whether the method is enabled.
-	 *
-	 * @var bool
-	 */
-	public $enabled = true;
-
-	/**
-	 * Payment method id.
-	 *
-	 * @var string
-	 */
-	public $id;
-
-	/**
-	 * Payment method order.
-	 *
-	 * @var int
-	 */
-	public $order = 10;
-
-	/**
-	 * Payment method title for the frontend.
-	 *
-	 * @var string
-	 */
-	public $title;
-
-	/**
-	 * Payment method description for the frontend.
-	 *
-	 * @var string
-	 */
-	public $description;
-
-	/**
-	 * Gateway title.
-	 *
-	 * @var string
-	 */
-	public $method_title = '';
-
-	/**
-	 * Gateway description.
-	 *
-	 * @var string
-	 */
-	public $method_description = '';
-
-	/**
-	 * Countries this gateway is allowed for.
-	 *
-	 * @var array
-	 */
-	public $countries;
-
-	/**
-	 * Currencies this gateway is allowed for.
-	 *
-	 * @var array
-	 */
-	public $currencies;
-
-	/**
-	 * Currencies this gateway is not allowed for.
-	 *
-	 * @var array
-	 */
-	public $exclude_currencies;
-
-	/**
-	 * Maximum transaction amount, zero does not define a maximum.
-	 *
-	 * @var int
-	 */
-	public $max_amount = 0;
-
-	/**
-	 * Optional URL to view a transaction.
-	 *
-	 * @var string
-	 */
-	public $view_transaction_url = '';
-
-	/**
-	 * Optional URL to view a subscription.
-	 *
-	 * @var string
-	 */
-	public $view_subscription_url = '';
-
-	/**
-	 * Optional label to show for "new payment method" in the payment
-	 * method/token selection radio selection.
-	 *
-	 * @var string
-	 */
-	public $new_method_label = '';
-
-	/**
-	 * Contains a user's saved tokens for this gateway.
-	 *
-	 * @var array
-	 */
-	protected $tokens = array();
-
-	/**
-	 * An array of features that this gateway supports.
-	 *
-	 * @var array
-	 */
-	protected $supports = array();
-
-	/**
-	 * Class constructor.
-	 */
-	public function __construct() {
-
-		do_action( 'getpaid_before_init_payment_gateway_' . $this->id, $this );
-
-		// Register gateway.
-		add_filter( 'wpinv_payment_gateways', array( $this, 'register_gateway' ) );
-
-		$this->enabled = wpinv_is_gateway_active( $this->id );
-
-		// Add support for various features.
-		foreach ( $this->supports as $feature ) {
-			add_filter( "wpinv_{$this->id}_support_{$feature}", '__return_true' );
-			add_filter( "getpaid_{$this->id}_support_{$feature}", '__return_true' );
-			add_filter( "getpaid_{$this->id}_supports_{$feature}", '__return_true' );
-		}
-
-		// Invoice addons.
-		if ( $this->supports( 'addons' ) ) {
-			add_action( "getpaid_process_{$this->id}_invoice_addons", array( $this, 'process_addons' ), 10, 2 );
-		}
-
-		// Gateway settings.
-		add_filter( "wpinv_gateway_settings_{$this->id}", array( $this, 'admin_settings' ) );
-
-		// Gateway checkout fields.
-		add_action( "wpinv_{$this->id}_cc_form", array( $this, 'payment_fields' ), 10, 2 );
-
-		// Process payment.
-		add_action( "getpaid_gateway_{$this->id}", array( $this, 'process_payment' ), 10, 3 );
-
-		// Change the checkout button text.
-		if ( ! empty( $this->checkout_button_text ) ) {
-			add_filter( "getpaid_gateway_{$this->id}_checkout_button_label", array( $this, 'rename_checkout_button' ) );
-		}
-
-		// Check if a gateway is valid for a given currency.
-		add_filter( "getpaid_gateway_{$this->id}_is_valid_for_currency", array( $this, 'validate_currency' ), 10, 2 );
-
-		// Generate the transaction url.
-		add_filter( "getpaid_gateway_{$this->id}_transaction_url", array( $this, 'filter_transaction_url' ), 10, 2 );
-
-		// Generate the subscription url.
-		add_filter( 'getpaid_remote_subscription_profile_url', array( $this, 'generate_subscription_url' ), 10, 2 );
-
-		// Confirm payments.
-		add_filter( "wpinv_payment_confirm_{$this->id}", array( $this, 'confirm_payment' ), 10, 2 );
-
-		// Verify IPNs.
-		add_action( "wpinv_verify_{$this->id}_ipn", array( $this, 'verify_ipn' ) );
-
-	}
-
-	/**
-	 * Checks if this gateway is a given gateway.
-	 *
-	 * @since 1.0.19
-	 * @return bool
-	 */
-	public function is( $gateway ) {
-		return $gateway == $this->id;
-	}
-
-	/**
-	 * Returns a users saved tokens for this gateway.
-	 *
-	 * @since 1.0.19
-	 * @return array
-	 */
-	public function get_tokens( $sandbox = null ) {
-
-		if ( is_user_logged_in() && $this->supports( 'tokens' ) && 0 == count( $this->tokens ) ) {
-			$tokens = get_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", true );
-
-			if ( is_array( $tokens ) ) {
-				$this->tokens = $tokens;
-			}
+    /**
+     * Set if the place checkout button should be renamed on selection.
+     *
+     * @var string
+     */
+    public $checkout_button_text;
+
+    /**
+     * Boolean whether the method is enabled.
+     *
+     * @var bool
+     */
+    public $enabled = true;
+
+    /**
+     * Payment method id.
+     *
+     * @var string
+     */
+    public $id;
+
+    /**
+     * Payment method order.
+     *
+     * @var int
+     */
+    public $order = 10;
+
+    /**
+     * Payment method title for the frontend.
+     *
+     * @var string
+     */
+    public $title;
+
+    /**
+     * Payment method description for the frontend.
+     *
+     * @var string
+     */
+    public $description;
+
+    /**
+     * Gateway title.
+     *
+     * @var string
+     */
+    public $method_title = '';
+
+    /**
+     * Gateway description.
+     *
+     * @var string
+     */
+    public $method_description = '';
+
+    /**
+     * Countries this gateway is allowed for.
+     *
+     * @var array
+     */
+    public $countries;
+
+    /**
+     * Currencies this gateway is allowed for.
+     *
+     * @var array
+     */
+    public $currencies;
+
+    /**
+     * Currencies this gateway is not allowed for.
+     *
+     * @var array
+     */
+    public $exclude_currencies;
+
+    /**
+     * Maximum transaction amount, zero does not define a maximum.
+     *
+     * @var int
+     */
+    public $max_amount = 0;
+
+    /**
+     * Optional URL to view a transaction.
+     *
+     * @var string
+     */
+    public $view_transaction_url = '';
+
+    /**
+     * Optional URL to view a subscription.
+     *
+     * @var string
+     */
+    public $view_subscription_url = '';
+
+    /**
+     * Optional label to show for "new payment method" in the payment
+     * method/token selection radio selection.
+     *
+     * @var string
+     */
+    public $new_method_label = '';
+
+    /**
+     * Contains a user's saved tokens for this gateway.
+     *
+     * @var array
+     */
+    protected $tokens = array();
+
+    /**
+     * An array of features that this gateway supports.
+     *
+     * @var array
+     */
+    protected $supports = array();
+
+    /**
+     * Class constructor.
+     */
+    public function __construct() {
+
+        do_action( 'getpaid_before_init_payment_gateway_' . $this->id, $this );
+
+        // Register gateway.
+        add_filter( 'wpinv_payment_gateways', array( $this, 'register_gateway' ) );
+
+        $this->enabled = wpinv_is_gateway_active( $this->id );
+
+        // Add support for various features.
+        foreach ( $this->supports as $feature ) {
+            add_filter( "wpinv_{$this->id}_support_{$feature}", '__return_true' );
+            add_filter( "getpaid_{$this->id}_support_{$feature}", '__return_true' );
+            add_filter( "getpaid_{$this->id}_supports_{$feature}", '__return_true' );
+        }
+
+        // Invoice addons.
+        if ( $this->supports( 'addons' ) ) {
+            add_action( "getpaid_process_{$this->id}_invoice_addons", array( $this, 'process_addons' ), 10, 2 );
+        }
+
+        // Gateway settings.
+        add_filter( "wpinv_gateway_settings_{$this->id}", array( $this, 'admin_settings' ) );
+
+        // Gateway checkout fields.
+        add_action( "wpinv_{$this->id}_cc_form", array( $this, 'payment_fields' ), 10, 2 );
+
+        // Process payment.
+        add_action( "getpaid_gateway_{$this->id}", array( $this, 'process_payment' ), 10, 3 );
+
+        // Change the checkout button text.
+        if ( ! empty( $this->checkout_button_text ) ) {
+            add_filter( "getpaid_gateway_{$this->id}_checkout_button_label", array( $this, 'rename_checkout_button' ) );
+        }
+
+        // Check if a gateway is valid for a given currency.
+        add_filter( "getpaid_gateway_{$this->id}_is_valid_for_currency", array( $this, 'validate_currency' ), 10, 2 );
+
+        // Generate the transaction url.
+        add_filter( "getpaid_gateway_{$this->id}_transaction_url", array( $this, 'filter_transaction_url' ), 10, 2 );
+
+        // Generate the subscription url.
+        add_filter( 'getpaid_remote_subscription_profile_url', array( $this, 'generate_subscription_url' ), 10, 2 );
+
+        // Confirm payments.
+        add_filter( "wpinv_payment_confirm_{$this->id}", array( $this, 'confirm_payment' ), 10, 2 );
+
+        // Verify IPNs.
+        add_action( "wpinv_verify_{$this->id}_ipn", array( $this, 'verify_ipn' ) );
+
+    }
+
+    /**
+     * Checks if this gateway is a given gateway.
+     *
+     * @since 1.0.19
+     * @return bool
+     */
+    public function is( $gateway ) {
+        return $gateway == $this->id;
+    }
+
+    /**
+     * Returns a users saved tokens for this gateway.
+     *
+     * @since 1.0.19
+     * @return array
+     */
+    public function get_tokens( $sandbox = null ) {
+
+        if ( is_user_logged_in() && $this->supports( 'tokens' ) && 0 == count( $this->tokens ) ) {
+            $tokens = get_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", true );
+
+            if ( is_array( $tokens ) ) {
+                $this->tokens = $tokens;
+            }
 }
 
-		if ( ! is_bool( $sandbox ) ) {
-			return $this->tokens;
-		}
-
-		// Filter tokens.
-		$args = array( 'type' => $sandbox ? 'sandbox' : 'live' );
-		return wp_list_filter( $this->tokens, $args );
-
-	}
-
-	/**
-	 * Saves a token for this gateway.
-	 *
-	 * @since 1.0.19
-	 */
-	public function save_token( $token ) {
-
-		$tokens   = $this->get_tokens();
-		$tokens[] = $token;
-
-		update_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", $tokens );
-
-		$this->tokens = $tokens;
-
-	}
-
-	/**
-	 * Return the title for admin screens.
-	 *
-	 * @return string
-	 */
-	public function get_method_title() {
-		return apply_filters( 'getpaid_gateway_method_title', $this->method_title, $this );
-	}
-
-	/**
-	 * Return the description for admin screens.
-	 *
-	 * @return string
-	 */
-	public function get_method_description() {
-		return apply_filters( 'getpaid_gateway_method_description', $this->method_description, $this );
-	}
-
-	/**
-	 * Get the success url.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 * @return string
-	 */
-	public function get_return_url( $invoice ) {
-
-		// Payment success url
-		$return_url = add_query_arg(
-			array(
-				'payment-confirm' => $this->id,
-				'invoice_key'     => $invoice->get_key(),
-				'utm_nooverride'  => 1,
-			),
-			wpinv_get_success_page_uri()
-		);
-
-		return apply_filters( 'getpaid_gateway_success_url', $return_url, $invoice, $this );
-	}
-
-	/**
-	 * Confirms payments when rendering the success page.
-	 *
-	 * @param string $content Success page content.
-	 * @return string
-	 */
-	public function confirm_payment( $content ) {
-
-		// Retrieve the invoice.
-		$invoice_id = getpaid_get_current_invoice_id();
-		$invoice    = wpinv_get_invoice( $invoice_id );
-
-		// Ensure that it exists and that it is pending payment.
-		if ( empty( $invoice_id ) || ! $invoice->needs_payment() ) {
-			return $content;
-		}
-
-		// Can the user view this invoice??
-		if ( ! wpinv_user_can_view_invoice( $invoice ) ) {
-			return $content;
-		}
-
-		// Show payment processing indicator.
-		return wpinv_get_template_html( 'wpinv-payment-processing.php', compact( 'invoice' ) );
-	}
-
-	/**
-	 * Processes ipns and marks payments as complete.
-	 *
-	 * @return void
-	 */
-	public function verify_ipn() {}
-
-	/**
-	 * Processes invoice addons.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param GetPaid_Form_Item[] $items
-	 * @return WPInv_Invoice
-	 */
-	public function process_addons( $invoice, $items ) {
-
-	}
-
-	/**
-	 * Get a link to the transaction on the 3rd party gateway site (if applicable).
-	 *
-	 * @param string $transaction_url transaction url.
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 * @return string transaction URL, or empty string.
-	 */
-	public function filter_transaction_url( $transaction_url, $invoice ) {
-
-		$transaction_id  = $invoice->get_transaction_id();
-
-		if ( ! empty( $this->view_transaction_url ) && ! empty( $transaction_id ) ) {
-			$transaction_url = sprintf( $this->view_transaction_url, $transaction_id );
-			$replace         = $this->is_sandbox( $invoice ) ? 'sandbox.' : '';
-			$transaction_url = str_replace( '{sandbox}', $replace, $transaction_url );
-		}
-
-		return $transaction_url;
-	}
-
-	/**
-	 * Get a link to the subscription on the 3rd party gateway site (if applicable).
-	 *
-	 * @param string $subscription_url transaction url.
-	 * @param WPInv_Subscription $subscription Subscription object.
-	 * @return string subscription URL, or empty string.
-	 */
-	public function generate_subscription_url( $subscription_url, $subscription ) {
-
-		$profile_id      = $subscription->get_profile_id();
-
-		if ( $this->id == $subscription->get_gateway() && ! empty( $this->view_subscription_url ) && ! empty( $profile_id ) ) {
-
-			$subscription_url = sprintf( $this->view_subscription_url, $profile_id );
-			$replace          = $this->is_sandbox( $subscription->get_parent_invoice() ) ? 'sandbox.' : '';
-			$subscription_url = str_replace( '{sandbox}', $replace, $subscription_url );
-
-		}
-
-		return $subscription_url;
-	}
-
-	/**
-	 * Check if the gateway is available for use.
-	 *
-	 * @return bool
-	 */
-	public function is_available() {
-		return ! empty( $this->enabled );
-	}
-
-	/**
-	 * Return the gateway's title.
-	 *
-	 * @return string
-	 */
-	public function get_title() {
-		return apply_filters( 'getpaid_gateway_title', $this->title, $this );
-	}
-
-	/**
-	 * Return the gateway's description.
-	 *
-	 * @return string
-	 */
-	public function get_description() {
-		return apply_filters( 'getpaid_gateway_description', $this->description, $this );
-	}
-
-	/**
-	 * Process Payment.
-	 *
-	 *
-	 * @param WPInv_Invoice $invoice Invoice.
-	 * @param array $submission_data Posted checkout fields.
-	 * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
-	 * @return void
-	 */
-	public function process_payment( $invoice, $submission_data, $submission ) {
-		// Process the payment then either redirect to the success page or the gateway.
-		do_action( 'getpaid_process_invoice_payment_' . $this->id, $invoice, $submission_data, $submission );
-	}
-
-	/**
-	 * Process refund.
-	 *
-	 * If the gateway declares 'refunds' support, this will allow it to refund.
-	 * a passed in amount.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice.
-	 * @param  float  $amount Refund amount.
-	 * @param  string $reason Refund reason.
-	 * @return WP_Error|bool True or false based on success, or a WP_Error object.
-	 */
-	public function process_refund( $invoice, $amount = null, $reason = '' ) {
-		return apply_filters( 'getpaid_process_invoice_refund_' . $this->id, false, $invoice, $amount, $reason );
-	}
-
-	/**
-	 * Displays the payment fields, credit cards etc.
-	 *
-	 * @param int $invoice_id 0 or invoice id.
-	 * @param GetPaid_Payment_Form $form Current payment form.
-	 */
-	public function payment_fields( $invoice_id, $form ) {
-		do_action( 'getpaid_getpaid_gateway_payment_fields_' . $this->id, $invoice_id, $form );
-	}
-
-	/**
-	 * Filters the gateway settings.
-	 *
-	 * @param array $admin_settings
-	 */
-	public function admin_settings( $admin_settings ) {
-		return $admin_settings;
-	}
-
-	/**
-	 * Retrieves the value of a gateway setting.
-	 *
-	 * @param string $option
-	 */
-	public function get_option( $option, $default = false ) {
-		return wpinv_get_option( $this->id . '_' . $option, $default );
-	}
-
-	/**
-	 * Check if a gateway supports a given feature.
-	 *
-	 * Gateways should override this to declare support (or lack of support) for a feature.
-	 * For backward compatibility, gateways support 'products' by default, but nothing else.
-	 *
-	 * @param string $feature string The name of a feature to test support for.
-	 * @return bool True if the gateway supports the feature, false otherwise.
-	 * @since 1.0.19
-	 */
-	public function supports( $feature ) {
-		return getpaid_payment_gateway_supports( $this->id, $feature );
-	}
-
-	/**
-	 * Returns the credit card form html.
-	 *
-	 * @param bool $save whether or not to display the save button.
-	 */
+        if ( ! is_bool( $sandbox ) ) {
+            return $this->tokens;
+        }
+
+        // Filter tokens.
+        $args = array( 'type' => $sandbox ? 'sandbox' : 'live' );
+        return wp_list_filter( $this->tokens, $args );
+
+    }
+
+    /**
+     * Saves a token for this gateway.
+     *
+     * @since 1.0.19
+     */
+    public function save_token( $token ) {
+
+        $tokens   = $this->get_tokens();
+        $tokens[] = $token;
+
+        update_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", $tokens );
+
+        $this->tokens = $tokens;
+
+    }
+
+    /**
+     * Return the title for admin screens.
+     *
+     * @return string
+     */
+    public function get_method_title() {
+        return apply_filters( 'getpaid_gateway_method_title', $this->method_title, $this );
+    }
+
+    /**
+     * Return the description for admin screens.
+     *
+     * @return string
+     */
+    public function get_method_description() {
+        return apply_filters( 'getpaid_gateway_method_description', $this->method_description, $this );
+    }
+
+    /**
+     * Get the success url.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
+     * @return string
+     */
+    public function get_return_url( $invoice ) {
+
+        // Payment success url
+        $return_url = add_query_arg(
+            array(
+                'payment-confirm' => $this->id,
+                'invoice_key'     => $invoice->get_key(),
+                'utm_nooverride'  => 1,
+            ),
+            wpinv_get_success_page_uri()
+        );
+
+        return apply_filters( 'getpaid_gateway_success_url', $return_url, $invoice, $this );
+    }
+
+    /**
+     * Confirms payments when rendering the success page.
+     *
+     * @param string $content Success page content.
+     * @return string
+     */
+    public function confirm_payment( $content ) {
+
+        // Retrieve the invoice.
+        $invoice_id = getpaid_get_current_invoice_id();
+        $invoice    = wpinv_get_invoice( $invoice_id );
+
+        // Ensure that it exists and that it is pending payment.
+        if ( empty( $invoice_id ) || ! $invoice->needs_payment() ) {
+            return $content;
+        }
+
+        // Can the user view this invoice??
+        if ( ! wpinv_user_can_view_invoice( $invoice ) ) {
+            return $content;
+        }
+
+        // Show payment processing indicator.
+        return wpinv_get_template_html( 'wpinv-payment-processing.php', compact( 'invoice' ) );
+    }
+
+    /**
+     * Processes ipns and marks payments as complete.
+     *
+     * @return void
+     */
+    public function verify_ipn() {}
+
+    /**
+     * Processes invoice addons.
+     *
+     * @param WPInv_Invoice $invoice
+     * @param GetPaid_Form_Item[] $items
+     * @return WPInv_Invoice
+     */
+    public function process_addons( $invoice, $items ) {
+
+    }
+
+    /**
+     * Get a link to the transaction on the 3rd party gateway site (if applicable).
+     *
+     * @param string $transaction_url transaction url.
+     * @param WPInv_Invoice $invoice Invoice object.
+     * @return string transaction URL, or empty string.
+     */
+    public function filter_transaction_url( $transaction_url, $invoice ) {
+
+        $transaction_id  = $invoice->get_transaction_id();
+
+        if ( ! empty( $this->view_transaction_url ) && ! empty( $transaction_id ) ) {
+            $transaction_url = sprintf( $this->view_transaction_url, $transaction_id );
+            $replace         = $this->is_sandbox( $invoice ) ? 'sandbox.' : '';
+            $transaction_url = str_replace( '{sandbox}', $replace, $transaction_url );
+        }
+
+        return $transaction_url;
+    }
+
+    /**
+     * Get a link to the subscription on the 3rd party gateway site (if applicable).
+     *
+     * @param string $subscription_url transaction url.
+     * @param WPInv_Subscription $subscription Subscription object.
+     * @return string subscription URL, or empty string.
+     */
+    public function generate_subscription_url( $subscription_url, $subscription ) {
+
+        $profile_id      = $subscription->get_profile_id();
+
+        if ( $this->id == $subscription->get_gateway() && ! empty( $this->view_subscription_url ) && ! empty( $profile_id ) ) {
+
+            $subscription_url = sprintf( $this->view_subscription_url, $profile_id );
+            $replace          = $this->is_sandbox( $subscription->get_parent_invoice() ) ? 'sandbox.' : '';
+            $subscription_url = str_replace( '{sandbox}', $replace, $subscription_url );
+
+        }
+
+        return $subscription_url;
+    }
+
+    /**
+     * Check if the gateway is available for use.
+     *
+     * @return bool
+     */
+    public function is_available() {
+        return ! empty( $this->enabled );
+    }
+
+    /**
+     * Return the gateway's title.
+     *
+     * @return string
+     */
+    public function get_title() {
+        return apply_filters( 'getpaid_gateway_title', $this->title, $this );
+    }
+
+    /**
+     * Return the gateway's description.
+     *
+     * @return string
+     */
+    public function get_description() {
+        return apply_filters( 'getpaid_gateway_description', $this->description, $this );
+    }
+
+    /**
+     * Process Payment.
+     *
+     *
+     * @param WPInv_Invoice $invoice Invoice.
+     * @param array $submission_data Posted checkout fields.
+     * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
+     * @return void
+     */
+    public function process_payment( $invoice, $submission_data, $submission ) {
+        // Process the payment then either redirect to the success page or the gateway.
+        do_action( 'getpaid_process_invoice_payment_' . $this->id, $invoice, $submission_data, $submission );
+    }
+
+    /**
+     * Process refund.
+     *
+     * If the gateway declares 'refunds' support, this will allow it to refund.
+     * a passed in amount.
+     *
+     * @param WPInv_Invoice $invoice Invoice.
+     * @param  float  $amount Refund amount.
+     * @param  string $reason Refund reason.
+     * @return WP_Error|bool True or false based on success, or a WP_Error object.
+     */
+    public function process_refund( $invoice, $amount = null, $reason = '' ) {
+        return apply_filters( 'getpaid_process_invoice_refund_' . $this->id, false, $invoice, $amount, $reason );
+    }
+
+    /**
+     * Displays the payment fields, credit cards etc.
+     *
+     * @param int $invoice_id 0 or invoice id.
+     * @param GetPaid_Payment_Form $form Current payment form.
+     */
+    public function payment_fields( $invoice_id, $form ) {
+        do_action( 'getpaid_getpaid_gateway_payment_fields_' . $this->id, $invoice_id, $form );
+    }
+
+    /**
+     * Filters the gateway settings.
+     *
+     * @param array $admin_settings
+     */
+    public function admin_settings( $admin_settings ) {
+        return $admin_settings;
+    }
+
+    /**
+     * Retrieves the value of a gateway setting.
+     *
+     * @param string $option
+     */
+    public function get_option( $option, $default = false ) {
+        return wpinv_get_option( $this->id . '_' . $option, $default );
+    }
+
+    /**
+     * Check if a gateway supports a given feature.
+     *
+     * Gateways should override this to declare support (or lack of support) for a feature.
+     * For backward compatibility, gateways support 'products' by default, but nothing else.
+     *
+     * @param string $feature string The name of a feature to test support for.
+     * @return bool True if the gateway supports the feature, false otherwise.
+     * @since 1.0.19
+     */
+    public function supports( $feature ) {
+        return getpaid_payment_gateway_supports( $this->id, $feature );
+    }
+
+    /**
+     * Returns the credit card form html.
+     *
+     * @param bool $save whether or not to display the save button.
+     */
     public function get_cc_form( $save = false ) {
 
-		ob_start();
+        ob_start();
 
         $id_prefix = esc_attr( uniqid( $this->id ) );
 
@@ -488,7 +488,7 @@ 
             '11' => __( 'November', 'invoicing' ),
             '12' => __( 'December', 'invoicing' ),
         );
-		$months = apply_filters( 'getpaid_cc_months', $months, $this );
+        $months = apply_filters( 'getpaid_cc_months', $months, $this );
 
         $year  = (int) current_time( 'Y' );
         $years = array();
@@ -497,7 +497,7 @@ 
             $years[ $year + $i ] = $year + $i;
         }
 
-		$years = apply_filters( 'getpaid_cc_years', $years, $this );
+        $years = apply_filters( 'getpaid_cc_years', $years, $this );
 
         ?>
             <div class="<?php echo esc_attr( $this->id ); ?>-cc-form getpaid-cc-form mt-1">
@@ -531,7 +531,7 @@ 
                                             <option disabled selected="selected"><?php esc_html_e( 'MM', 'invoicing' ); ?></option>
                                             <?php
                                                 foreach ( $months as $key => $month ) {
-												echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $month ) . '</option>';
+                                                echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $month ) . '</option>';
                                                 }
                                             ?>
                                         </select>
@@ -541,7 +541,7 @@ 
                                             <option disabled selected="selected"><?php esc_html_e( 'YY', 'invoicing' ); ?></option>
                                             <?php
                                                 foreach ( $years as $key => $year ) {
-												echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $year ) . '</option>';
+                                                echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $year ) . '</option>';
                                                 }
                                             ?>
                                         </select>
@@ -556,203 +556,203 @@ 
                                         'name'             => $this->id . '[cc_cvv2]',
                                         'id'               => "$id_prefix-cc-cvv2",
                                         'label'            => __( 'CCV', 'invoicing' ),
-										'label_type'       => 'vertical',
-										'class'            => 'form-control-sm',
-										'extra_attributes' => array(
-											'autocomplete' => 'cc-csc',
-											'maxlength' => 4
-										),
+                                        'label_type'       => 'vertical',
+                                        'class'            => 'form-control-sm',
+                                        'extra_attributes' => array(
+                                            'autocomplete' => 'cc-csc',
+                                            'maxlength' => 4
+                                        ),
                                     ),
-									true
+                                    true
                                 );
                             ?>
                         </div>
 					</div>
 					<?php
-						if ( $save ) {
-							$this->save_payment_method_checkbox();
-						}
-					?>
+                        if ( $save ) {
+                            $this->save_payment_method_checkbox();
+                        }
+                    ?>
                 </div>
             </div>
 		<?php
 
-		return ob_get_clean();
+        return ob_get_clean();
+
+    }
+
+    /**
+     * Displays a new payment method entry form.
+     *
+     * @since 1.0.19
+     */
+    public function new_payment_method_entry( $form ) {
+        echo "<div class='getpaid-new-payment-method-form' style='display:none;'> " . wp_kses( $form, getpaid_allowed_html() ) . '</div>';
+    }
+
+    /**
+     * Grab and display our saved payment methods.
+     *
+     * @since 1.0.19
+     */
+    public function saved_payment_methods() {
+        echo '<ul class="getpaid-saved-payment-methods list-unstyled m-0 mt-2" data-count="' . esc_attr( count( $this->get_tokens( $this->is_sandbox() ) ) ) . '">';
+
+        foreach ( $this->get_tokens( $this->is_sandbox() ) as $token ) {
+            $this->get_saved_payment_method_option_html( $token );
+        }
+
+        $this->get_new_payment_method_option_html();
+        echo '</ul>';
 
     }
 
-	/**
-	 * Displays a new payment method entry form.
-	 *
-	 * @since 1.0.19
-	 */
-	public function new_payment_method_entry( $form ) {
-		echo "<div class='getpaid-new-payment-method-form' style='display:none;'> " . wp_kses( $form, getpaid_allowed_html() ) . '</div>';
-	}
-
-	/**
-	 * Grab and display our saved payment methods.
-	 *
-	 * @since 1.0.19
-	 */
-	public function saved_payment_methods() {
-		echo '<ul class="getpaid-saved-payment-methods list-unstyled m-0 mt-2" data-count="' . esc_attr( count( $this->get_tokens( $this->is_sandbox() ) ) ) . '">';
-
-		foreach ( $this->get_tokens( $this->is_sandbox() ) as $token ) {
-			$this->get_saved_payment_method_option_html( $token );
-		}
-
-		$this->get_new_payment_method_option_html();
-		echo '</ul>';
-
-	}
-
-	/**
-	 * Gets saved payment method HTML from a token.
-	 *
-	 * @since 1.0.19
-	 * @param  array $token Payment Token.
-	 * @return string Generated payment method HTML
-	 */
-	public function get_saved_payment_method_option_html( $token ) {
-
-		printf(
-			'<li class="getpaid-payment-method form-group mb-3">
+    /**
+     * Gets saved payment method HTML from a token.
+     *
+     * @since 1.0.19
+     * @param  array $token Payment Token.
+     * @return string Generated payment method HTML
+     */
+    public function get_saved_payment_method_option_html( $token ) {
+
+        printf(
+            '<li class="getpaid-payment-method form-group mb-3">
 				<label>
 					<input name="getpaid-%1$s-payment-method" type="radio" value="%2$s" data-currency="%5$s" style="width:auto;" class="getpaid-saved-payment-method-token-input" %4$s />
 					<span>%3$s</span>
 				</label>
 			</li>',
-			esc_attr( $this->id ),
-			esc_attr( $token['id'] ),
-			esc_html( $token['name'] ),
-			checked( empty( $token['default'] ), false, false ),
-			empty( $token['currency'] ) ? 'none' : esc_attr( $token['currency'] )
-		);
-
-	}
-
-	/**
-	 * Displays a radio button for entering a new payment method (new CC details) instead of using a saved method.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_new_payment_method_option_html() {
-
-		$label = apply_filters( 'getpaid_new_payment_method_label', $this->new_method_label ? $this->new_method_label : __( 'Use a new payment method', 'invoicing' ), $this );
-
-		printf(
-			'<li class="getpaid-new-payment-method">
+            esc_attr( $this->id ),
+            esc_attr( $token['id'] ),
+            esc_html( $token['name'] ),
+            checked( empty( $token['default'] ), false, false ),
+            empty( $token['currency'] ) ? 'none' : esc_attr( $token['currency'] )
+        );
+
+    }
+
+    /**
+     * Displays a radio button for entering a new payment method (new CC details) instead of using a saved method.
+     *
+     * @since 1.0.19
+     */
+    public function get_new_payment_method_option_html() {
+
+        $label = apply_filters( 'getpaid_new_payment_method_label', $this->new_method_label ? $this->new_method_label : __( 'Use a new payment method', 'invoicing' ), $this );
+
+        printf(
+            '<li class="getpaid-new-payment-method">
 				<label>
 					<input name="getpaid-%1$s-payment-method" type="radio" data-currency="none" value="new" style="width:auto;" />
 					<span>%2$s</span>
 				</label>
 			</li>',
-			esc_attr( $this->id ),
-			esc_html( $label )
-		);
-
-	}
-
-	/**
-	 * Outputs a checkbox for saving a new payment method to the database.
-	 *
-	 * @since 1.0.19
-	 */
-	public function save_payment_method_checkbox() {
-
-		aui()->input(
-			array(
-				'type'       => 'checkbox',
-				'name'       => esc_attr( "getpaid-$this->id-new-payment-method" ),
-				'id'         => esc_attr( uniqid( $this->id ) ),
-				'required'   => false,
-				'label'      => esc_html__( 'Save payment method', 'invoicing' ),
-				'value'      => 'true',
-				'checked'    => true,
-				'wrap_class' => 'getpaid-save-payment-method pt-1 pb-1',
-			),
-			true
-		);
-
-	}
-
-	/**
-	 * Registers the gateway.
-	 *
-	 * @return array
-	 */
-	public function register_gateway( $gateways ) {
-
-		$gateways[ $this->id ] = array(
-
-			'admin_label'    => $this->method_title,
+            esc_attr( $this->id ),
+            esc_html( $label )
+        );
+
+    }
+
+    /**
+     * Outputs a checkbox for saving a new payment method to the database.
+     *
+     * @since 1.0.19
+     */
+    public function save_payment_method_checkbox() {
+
+        aui()->input(
+            array(
+                'type'       => 'checkbox',
+                'name'       => esc_attr( "getpaid-$this->id-new-payment-method" ),
+                'id'         => esc_attr( uniqid( $this->id ) ),
+                'required'   => false,
+                'label'      => esc_html__( 'Save payment method', 'invoicing' ),
+                'value'      => 'true',
+                'checked'    => true,
+                'wrap_class' => 'getpaid-save-payment-method pt-1 pb-1',
+            ),
+            true
+        );
+
+    }
+
+    /**
+     * Registers the gateway.
+     *
+     * @return array
+     */
+    public function register_gateway( $gateways ) {
+
+        $gateways[ $this->id ] = array(
+
+            'admin_label'    => $this->method_title,
             'checkout_label' => $this->title,
-			'ordering'       => $this->order,
+            'ordering'       => $this->order,
 
-		);
+        );
 
-		return $gateways;
+        return $gateways;
 
-	}
+    }
 
-	/**
-	 * Checks whether or not this is a sandbox request.
-	 *
-	 * @param  WPInv_Invoice|null $invoice Invoice object or null.
-	 * @return bool
-	 */
-	public function is_sandbox( $invoice = null ) {
+    /**
+     * Checks whether or not this is a sandbox request.
+     *
+     * @param  WPInv_Invoice|null $invoice Invoice object or null.
+     * @return bool
+     */
+    public function is_sandbox( $invoice = null ) {
 
-		if ( is_a( $invoice, 'WPInv_Invoice' ) && ! $invoice->needs_payment() ) {
-			return $invoice->get_mode() === 'test';
-		}
+        if ( is_a( $invoice, 'WPInv_Invoice' ) && ! $invoice->needs_payment() ) {
+            return $invoice->get_mode() === 'test';
+        }
 
-		return wpinv_is_test_mode( $this->id );
+        return wpinv_is_test_mode( $this->id );
 
-	}
+    }
 
-	/**
-	 * Renames the checkout button
-	 *
-	 * @return string
-	 */
-	public function rename_checkout_button() {
-		return $this->checkout_button_text;
-	}
+    /**
+     * Renames the checkout button
+     *
+     * @return string
+     */
+    public function rename_checkout_button() {
+        return $this->checkout_button_text;
+    }
 
-	/**
-	 * Validate gateway currency
-	 *
-	 * @return bool
-	 */
-	public function validate_currency( $validation, $currency ) {
+    /**
+     * Validate gateway currency
+     *
+     * @return bool
+     */
+    public function validate_currency( $validation, $currency ) {
 
-		// Required currencies.
-		if ( ! empty( $this->currencies ) && ! in_array( $currency, $this->currencies ) ) {
-			return false;
-		}
+        // Required currencies.
+        if ( ! empty( $this->currencies ) && ! in_array( $currency, $this->currencies ) ) {
+            return false;
+        }
 
-		// Excluded currencies.
-		if ( ! empty( $this->exclude_currencies ) && in_array( $currency, $this->exclude_currencies ) ) {
-			return false;
-		}
+        // Excluded currencies.
+        if ( ! empty( $this->exclude_currencies ) && in_array( $currency, $this->exclude_currencies ) ) {
+            return false;
+        }
 
-		return $validation;
-	}
+        return $validation;
+    }
 
-	/**
-	 * Displays an error
-	 *
-	 */
-	public function show_error( $code, $message, $type ) {
+    /**
+     * Displays an error
+     *
+     */
+    public function show_error( $code, $message, $type ) {
 
-		if ( is_admin() ) {
-			getpaid_admin()->{"show_$type"}( $message );
-		}
+        if ( is_admin() ) {
+            getpaid_admin()->{"show_$type"}( $message );
+        }
 
-		wpinv_set_error( $code, $message, $type );
+        wpinv_set_error( $code, $message, $type );
 
-	}
+    }
 
 }

Spacing +129 added lines, -129 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Abstaract Payment Gateway class.
@@ -138,53 +138,53 @@ 
 	 */
 	public function __construct() {
 
-		do_action( 'getpaid_before_init_payment_gateway_' . $this->id, $this );
+		do_action('getpaid_before_init_payment_gateway_' . $this->id, $this);
 
 		// Register gateway.
-		add_filter( 'wpinv_payment_gateways', array( $this, 'register_gateway' ) );
+		add_filter('wpinv_payment_gateways', array($this, 'register_gateway'));
 
-		$this->enabled = wpinv_is_gateway_active( $this->id );
+		$this->enabled = wpinv_is_gateway_active($this->id);
 
 		// Add support for various features.
-		foreach ( $this->supports as $feature ) {
-			add_filter( "wpinv_{$this->id}_support_{$feature}", '__return_true' );
-			add_filter( "getpaid_{$this->id}_support_{$feature}", '__return_true' );
-			add_filter( "getpaid_{$this->id}_supports_{$feature}", '__return_true' );
+		foreach ($this->supports as $feature) {
+			add_filter("wpinv_{$this->id}_support_{$feature}", '__return_true');
+			add_filter("getpaid_{$this->id}_support_{$feature}", '__return_true');
+			add_filter("getpaid_{$this->id}_supports_{$feature}", '__return_true');
 		}
 
 		// Invoice addons.
-		if ( $this->supports( 'addons' ) ) {
-			add_action( "getpaid_process_{$this->id}_invoice_addons", array( $this, 'process_addons' ), 10, 2 );
+		if ($this->supports('addons')) {
+			add_action("getpaid_process_{$this->id}_invoice_addons", array($this, 'process_addons'), 10, 2);
 		}
 
 		// Gateway settings.
-		add_filter( "wpinv_gateway_settings_{$this->id}", array( $this, 'admin_settings' ) );
+		add_filter("wpinv_gateway_settings_{$this->id}", array($this, 'admin_settings'));
 
 		// Gateway checkout fields.
-		add_action( "wpinv_{$this->id}_cc_form", array( $this, 'payment_fields' ), 10, 2 );
+		add_action("wpinv_{$this->id}_cc_form", array($this, 'payment_fields'), 10, 2);
 
 		// Process payment.
-		add_action( "getpaid_gateway_{$this->id}", array( $this, 'process_payment' ), 10, 3 );
+		add_action("getpaid_gateway_{$this->id}", array($this, 'process_payment'), 10, 3);
 
 		// Change the checkout button text.
-		if ( ! empty( $this->checkout_button_text ) ) {
-			add_filter( "getpaid_gateway_{$this->id}_checkout_button_label", array( $this, 'rename_checkout_button' ) );
+		if (!empty($this->checkout_button_text)) {
+			add_filter("getpaid_gateway_{$this->id}_checkout_button_label", array($this, 'rename_checkout_button'));
 		}
 
 		// Check if a gateway is valid for a given currency.
-		add_filter( "getpaid_gateway_{$this->id}_is_valid_for_currency", array( $this, 'validate_currency' ), 10, 2 );
+		add_filter("getpaid_gateway_{$this->id}_is_valid_for_currency", array($this, 'validate_currency'), 10, 2);
 
 		// Generate the transaction url.
-		add_filter( "getpaid_gateway_{$this->id}_transaction_url", array( $this, 'filter_transaction_url' ), 10, 2 );
+		add_filter("getpaid_gateway_{$this->id}_transaction_url", array($this, 'filter_transaction_url'), 10, 2);
 
 		// Generate the subscription url.
-		add_filter( 'getpaid_remote_subscription_profile_url', array( $this, 'generate_subscription_url' ), 10, 2 );
+		add_filter('getpaid_remote_subscription_profile_url', array($this, 'generate_subscription_url'), 10, 2);
 
 		// Confirm payments.
-		add_filter( "wpinv_payment_confirm_{$this->id}", array( $this, 'confirm_payment' ), 10, 2 );
+		add_filter("wpinv_payment_confirm_{$this->id}", array($this, 'confirm_payment'), 10, 2);
 
 		// Verify IPNs.
-		add_action( "wpinv_verify_{$this->id}_ipn", array( $this, 'verify_ipn' ) );
+		add_action("wpinv_verify_{$this->id}_ipn", array($this, 'verify_ipn'));
 
 	}
 
@@ -194,7 +194,7 @@ 
 	 * @since 1.0.19
 	 * @return bool
 	 */
-	public function is( $gateway ) {
+	public function is($gateway) {
 		return $gateway == $this->id;
 	}
 
@@ -204,23 +204,23 @@ 
 	 * @since 1.0.19
 	 * @return array
 	 */
-	public function get_tokens( $sandbox = null ) {
+	public function get_tokens($sandbox = null) {
 
-		if ( is_user_logged_in() && $this->supports( 'tokens' ) && 0 == count( $this->tokens ) ) {
-			$tokens = get_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", true );
+		if (is_user_logged_in() && $this->supports('tokens') && 0 == count($this->tokens)) {
+			$tokens = get_user_meta(get_current_user_id(), "getpaid_{$this->id}_tokens", true);
 
-			if ( is_array( $tokens ) ) {
+			if (is_array($tokens)) {
 				$this->tokens = $tokens;
 			}
 }
 
-		if ( ! is_bool( $sandbox ) ) {
+		if (!is_bool($sandbox)) {
 			return $this->tokens;
 		}
 
 		// Filter tokens.
-		$args = array( 'type' => $sandbox ? 'sandbox' : 'live' );
-		return wp_list_filter( $this->tokens, $args );
+		$args = array('type' => $sandbox ? 'sandbox' : 'live');
+		return wp_list_filter($this->tokens, $args);
 
 	}
 
@@ -229,12 +229,12 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function save_token( $token ) {
+	public function save_token($token) {
 
 		$tokens   = $this->get_tokens();
 		$tokens[] = $token;
 
-		update_user_meta( get_current_user_id(), "getpaid_{$this->id}_tokens", $tokens );
+		update_user_meta(get_current_user_id(), "getpaid_{$this->id}_tokens", $tokens);
 
 		$this->tokens = $tokens;
 
@@ -246,7 +246,7 @@ 
 	 * @return string
 	 */
 	public function get_method_title() {
-		return apply_filters( 'getpaid_gateway_method_title', $this->method_title, $this );
+		return apply_filters('getpaid_gateway_method_title', $this->method_title, $this);
 	}
 
 	/**
@@ -255,7 +255,7 @@ 
 	 * @return string
 	 */
 	public function get_method_description() {
-		return apply_filters( 'getpaid_gateway_method_description', $this->method_description, $this );
+		return apply_filters('getpaid_gateway_method_description', $this->method_description, $this);
 	}
 
 	/**
@@ -264,7 +264,7 @@ 
 	 * @param WPInv_Invoice $invoice Invoice object.
 	 * @return string
 	 */
-	public function get_return_url( $invoice ) {
+	public function get_return_url($invoice) {
 
 		// Payment success url
 		$return_url = add_query_arg(
@@ -276,7 +276,7 @@ 
 			wpinv_get_success_page_uri()
 		);
 
-		return apply_filters( 'getpaid_gateway_success_url', $return_url, $invoice, $this );
+		return apply_filters('getpaid_gateway_success_url', $return_url, $invoice, $this);
 	}
 
 	/**
@@ -285,24 +285,24 @@ 
 	 * @param string $content Success page content.
 	 * @return string
 	 */
-	public function confirm_payment( $content ) {
+	public function confirm_payment($content) {
 
 		// Retrieve the invoice.
 		$invoice_id = getpaid_get_current_invoice_id();
-		$invoice    = wpinv_get_invoice( $invoice_id );
+		$invoice    = wpinv_get_invoice($invoice_id);
 
 		// Ensure that it exists and that it is pending payment.
-		if ( empty( $invoice_id ) || ! $invoice->needs_payment() ) {
+		if (empty($invoice_id) || !$invoice->needs_payment()) {
 			return $content;
 		}
 
 		// Can the user view this invoice??
-		if ( ! wpinv_user_can_view_invoice( $invoice ) ) {
+		if (!wpinv_user_can_view_invoice($invoice)) {
 			return $content;
 		}
 
 		// Show payment processing indicator.
-		return wpinv_get_template_html( 'wpinv-payment-processing.php', compact( 'invoice' ) );
+		return wpinv_get_template_html('wpinv-payment-processing.php', compact('invoice'));
 	}
 
 	/**
@@ -319,7 +319,7 @@ 
 	 * @param GetPaid_Form_Item[] $items
 	 * @return WPInv_Invoice
 	 */
-	public function process_addons( $invoice, $items ) {
+	public function process_addons($invoice, $items) {
 
 	}
 
@@ -330,14 +330,14 @@ 
 	 * @param WPInv_Invoice $invoice Invoice object.
 	 * @return string transaction URL, or empty string.
 	 */
-	public function filter_transaction_url( $transaction_url, $invoice ) {
+	public function filter_transaction_url($transaction_url, $invoice) {
 
-		$transaction_id  = $invoice->get_transaction_id();
+		$transaction_id = $invoice->get_transaction_id();
 
-		if ( ! empty( $this->view_transaction_url ) && ! empty( $transaction_id ) ) {
-			$transaction_url = sprintf( $this->view_transaction_url, $transaction_id );
-			$replace         = $this->is_sandbox( $invoice ) ? 'sandbox.' : '';
-			$transaction_url = str_replace( '{sandbox}', $replace, $transaction_url );
+		if (!empty($this->view_transaction_url) && !empty($transaction_id)) {
+			$transaction_url = sprintf($this->view_transaction_url, $transaction_id);
+			$replace         = $this->is_sandbox($invoice) ? 'sandbox.' : '';
+			$transaction_url = str_replace('{sandbox}', $replace, $transaction_url);
 		}
 
 		return $transaction_url;
@@ -350,15 +350,15 @@ 
 	 * @param WPInv_Subscription $subscription Subscription object.
 	 * @return string subscription URL, or empty string.
 	 */
-	public function generate_subscription_url( $subscription_url, $subscription ) {
+	public function generate_subscription_url($subscription_url, $subscription) {
 
-		$profile_id      = $subscription->get_profile_id();
+		$profile_id = $subscription->get_profile_id();
 
-		if ( $this->id == $subscription->get_gateway() && ! empty( $this->view_subscription_url ) && ! empty( $profile_id ) ) {
+		if ($this->id == $subscription->get_gateway() && !empty($this->view_subscription_url) && !empty($profile_id)) {
 
-			$subscription_url = sprintf( $this->view_subscription_url, $profile_id );
-			$replace          = $this->is_sandbox( $subscription->get_parent_invoice() ) ? 'sandbox.' : '';
-			$subscription_url = str_replace( '{sandbox}', $replace, $subscription_url );
+			$subscription_url = sprintf($this->view_subscription_url, $profile_id);
+			$replace          = $this->is_sandbox($subscription->get_parent_invoice()) ? 'sandbox.' : '';
+			$subscription_url = str_replace('{sandbox}', $replace, $subscription_url);
 
 		}
 
@@ -371,7 +371,7 @@ 
 	 * @return bool
 	 */
 	public function is_available() {
-		return ! empty( $this->enabled );
+		return !empty($this->enabled);
 	}
 
 	/**
@@ -380,7 +380,7 @@ 
 	 * @return string
 	 */
 	public function get_title() {
-		return apply_filters( 'getpaid_gateway_title', $this->title, $this );
+		return apply_filters('getpaid_gateway_title', $this->title, $this);
 	}
 
 	/**
@@ -389,7 +389,7 @@ 
 	 * @return string
 	 */
 	public function get_description() {
-		return apply_filters( 'getpaid_gateway_description', $this->description, $this );
+		return apply_filters('getpaid_gateway_description', $this->description, $this);
 	}
 
 	/**
@@ -401,9 +401,9 @@ 
 	 * @param GetPaid_Payment_Form_Submission $submission Checkout submission.
 	 * @return void
 	 */
-	public function process_payment( $invoice, $submission_data, $submission ) {
+	public function process_payment($invoice, $submission_data, $submission) {
 		// Process the payment then either redirect to the success page or the gateway.
-		do_action( 'getpaid_process_invoice_payment_' . $this->id, $invoice, $submission_data, $submission );
+		do_action('getpaid_process_invoice_payment_' . $this->id, $invoice, $submission_data, $submission);
 	}
 
 	/**
@@ -417,8 +417,8 @@ 
 	 * @param  string $reason Refund reason.
 	 * @return WP_Error|bool True or false based on success, or a WP_Error object.
 	 */
-	public function process_refund( $invoice, $amount = null, $reason = '' ) {
-		return apply_filters( 'getpaid_process_invoice_refund_' . $this->id, false, $invoice, $amount, $reason );
+	public function process_refund($invoice, $amount = null, $reason = '') {
+		return apply_filters('getpaid_process_invoice_refund_' . $this->id, false, $invoice, $amount, $reason);
 	}
 
 	/**
@@ -427,8 +427,8 @@ 
 	 * @param int $invoice_id 0 or invoice id.
 	 * @param GetPaid_Payment_Form $form Current payment form.
 	 */
-	public function payment_fields( $invoice_id, $form ) {
-		do_action( 'getpaid_getpaid_gateway_payment_fields_' . $this->id, $invoice_id, $form );
+	public function payment_fields($invoice_id, $form) {
+		do_action('getpaid_getpaid_gateway_payment_fields_' . $this->id, $invoice_id, $form);
 	}
 
 	/**
@@ -436,7 +436,7 @@ 
 	 *
 	 * @param array $admin_settings
 	 */
-	public function admin_settings( $admin_settings ) {
+	public function admin_settings($admin_settings) {
 		return $admin_settings;
 	}
 
@@ -445,8 +445,8 @@ 
 	 *
 	 * @param string $option
 	 */
-	public function get_option( $option, $default = false ) {
-		return wpinv_get_option( $this->id . '_' . $option, $default );
+	public function get_option($option, $default = false) {
+		return wpinv_get_option($this->id . '_' . $option, $default);
 	}
 
 	/**
@@ -459,8 +459,8 @@ 
 	 * @return bool True if the gateway supports the feature, false otherwise.
 	 * @since 1.0.19
 	 */
-	public function supports( $feature ) {
-		return getpaid_payment_gateway_supports( $this->id, $feature );
+	public function supports($feature) {
+		return getpaid_payment_gateway_supports($this->id, $feature);
 	}
 
 	/**
@@ -468,46 +468,46 @@ 
 	 *
 	 * @param bool $save whether or not to display the save button.
 	 */
-    public function get_cc_form( $save = false ) {
+    public function get_cc_form($save = false) {
 
 		ob_start();
 
-        $id_prefix = esc_attr( uniqid( $this->id ) );
+        $id_prefix = esc_attr(uniqid($this->id));
 
         $months = array(
-            '01' => __( 'January', 'invoicing' ),
-            '02' => __( 'February', 'invoicing' ),
-            '03' => __( 'March', 'invoicing' ),
-            '04' => __( 'April', 'invoicing' ),
-            '05' => __( 'May', 'invoicing' ),
-            '06' => __( 'June', 'invoicing' ),
-            '07' => __( 'July', 'invoicing' ),
-            '08' => __( 'August', 'invoicing' ),
-            '09' => __( 'September', 'invoicing' ),
-            '10' => __( 'October', 'invoicing' ),
-            '11' => __( 'November', 'invoicing' ),
-            '12' => __( 'December', 'invoicing' ),
+            '01' => __('January', 'invoicing'),
+            '02' => __('February', 'invoicing'),
+            '03' => __('March', 'invoicing'),
+            '04' => __('April', 'invoicing'),
+            '05' => __('May', 'invoicing'),
+            '06' => __('June', 'invoicing'),
+            '07' => __('July', 'invoicing'),
+            '08' => __('August', 'invoicing'),
+            '09' => __('September', 'invoicing'),
+            '10' => __('October', 'invoicing'),
+            '11' => __('November', 'invoicing'),
+            '12' => __('December', 'invoicing'),
         );
-		$months = apply_filters( 'getpaid_cc_months', $months, $this );
+		$months = apply_filters('getpaid_cc_months', $months, $this);
 
-        $year  = (int) current_time( 'Y' );
+        $year  = (int) current_time('Y');
         $years = array();
 
-        for ( $i = 0; $i <= 10; $i++ ) {
-            $years[ $year + $i ] = $year + $i;
+        for ($i = 0; $i <= 10; $i++) {
+            $years[$year + $i] = $year + $i;
         }
 
-		$years = apply_filters( 'getpaid_cc_years', $years, $this );
+		$years = apply_filters('getpaid_cc_years', $years, $this);
 
         ?>
-            <div class="<?php echo esc_attr( $this->id ); ?>-cc-form getpaid-cc-form mt-1">
+            <div class="<?php echo esc_attr($this->id); ?>-cc-form getpaid-cc-form mt-1">
                 <div class="getpaid-cc-card-inner">
                     <div class="row">
                         <div class="col-12">
 							<div class="form-group mb-3">
-								<label for="<?php echo esc_attr( "$id_prefix-cc-number" ); ?>"><?php esc_html_e( 'Card number', 'invoicing' ); ?></label>
+								<label for="<?php echo esc_attr("$id_prefix-cc-number"); ?>"><?php esc_html_e('Card number', 'invoicing'); ?></label>
 								<div class="input-group input-group-sm">
-									<?php if ( empty( $GLOBALS['aui_bs5'] ) ) : ?>
+									<?php if (empty($GLOBALS['aui_bs5'])) : ?>
                                         <div class="input-group-prepend ">
 											<span class="input-group-text">
 												<i class="fa fa-credit-card"></i>
@@ -518,30 +518,30 @@ 
 											<i class="fa fa-credit-card"></i>
 										</span>
                                     <?php endif; ?>
-									<input type="text" name="<?php echo esc_attr( $this->id . '[cc_number]' ); ?>" id="<?php echo esc_attr( "$id_prefix-cc-number" ); ?>" class="form-control form-control-sm getpaid-format-card-number" autocomplete="cc-number">
+									<input type="text" name="<?php echo esc_attr($this->id . '[cc_number]'); ?>" id="<?php echo esc_attr("$id_prefix-cc-number"); ?>" class="form-control form-control-sm getpaid-format-card-number" autocomplete="cc-number">
 								</div>
 							</div>
                         </div>
                         <div class="col-12">
                             <div class="form-group mb-3">
-                                <label><?php esc_html_e( 'Expiration', 'invoicing' ); ?></label>
+                                <label><?php esc_html_e('Expiration', 'invoicing'); ?></label>
                                 <div class="form-row row">
                                     <div class="col">
-                                        <select class="form-control form-control-sm" autocomplete="cc-exp-month" name="<?php echo esc_attr( $this->id ); ?>[cc_expire_month]">
-                                            <option disabled selected="selected"><?php esc_html_e( 'MM', 'invoicing' ); ?></option>
+                                        <select class="form-control form-control-sm" autocomplete="cc-exp-month" name="<?php echo esc_attr($this->id); ?>[cc_expire_month]">
+                                            <option disabled selected="selected"><?php esc_html_e('MM', 'invoicing'); ?></option>
                                             <?php
-                                                foreach ( $months as $key => $month ) {
-												echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $month ) . '</option>';
+                                                foreach ($months as $key => $month) {
+												echo "<option value='" . esc_attr($key) . "'>" . esc_html($month) . '</option>';
                                                 }
                                             ?>
                                         </select>
                                     </div>
                                     <div class="col">
-                                        <select class="form-control form-control-sm" autocomplete="cc-exp-year" name="<?php echo esc_attr( $this->id ); ?>[cc_expire_year]">
-                                            <option disabled selected="selected"><?php esc_html_e( 'YY', 'invoicing' ); ?></option>
+                                        <select class="form-control form-control-sm" autocomplete="cc-exp-year" name="<?php echo esc_attr($this->id); ?>[cc_expire_year]">
+                                            <option disabled selected="selected"><?php esc_html_e('YY', 'invoicing'); ?></option>
                                             <?php
-                                                foreach ( $years as $key => $year ) {
-												echo "<option value='" . esc_attr( $key ) . "'>" . esc_html( $year ) . '</option>';
+                                                foreach ($years as $key => $year) {
+												echo "<option value='" . esc_attr($key) . "'>" . esc_html($year) . '</option>';
                                                 }
                                             ?>
                                         </select>
@@ -555,7 +555,7 @@ 
                                     array(
                                         'name'             => $this->id . '[cc_cvv2]',
                                         'id'               => "$id_prefix-cc-cvv2",
-                                        'label'            => __( 'CCV', 'invoicing' ),
+                                        'label'            => __('CCV', 'invoicing'),
 										'label_type'       => 'vertical',
 										'class'            => 'form-control-sm',
 										'extra_attributes' => array(
@@ -569,7 +569,7 @@ 
                         </div>
 					</div>
 					<?php
-						if ( $save ) {
+						if ($save) {
 							$this->save_payment_method_checkbox();
 						}
 					?>
@@ -586,8 +586,8 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function new_payment_method_entry( $form ) {
-		echo "<div class='getpaid-new-payment-method-form' style='display:none;'> " . wp_kses( $form, getpaid_allowed_html() ) . '</div>';
+	public function new_payment_method_entry($form) {
+		echo "<div class='getpaid-new-payment-method-form' style='display:none;'> " . wp_kses($form, getpaid_allowed_html()) . '</div>';
 	}
 
 	/**
@@ -596,10 +596,10 @@ 
 	 * @since 1.0.19
 	 */
 	public function saved_payment_methods() {
-		echo '<ul class="getpaid-saved-payment-methods list-unstyled m-0 mt-2" data-count="' . esc_attr( count( $this->get_tokens( $this->is_sandbox() ) ) ) . '">';
+		echo '<ul class="getpaid-saved-payment-methods list-unstyled m-0 mt-2" data-count="' . esc_attr(count($this->get_tokens($this->is_sandbox()))) . '">';
 
-		foreach ( $this->get_tokens( $this->is_sandbox() ) as $token ) {
-			$this->get_saved_payment_method_option_html( $token );
+		foreach ($this->get_tokens($this->is_sandbox()) as $token) {
+			$this->get_saved_payment_method_option_html($token);
 		}
 
 		$this->get_new_payment_method_option_html();
@@ -614,7 +614,7 @@ 
 	 * @param  array $token Payment Token.
 	 * @return string Generated payment method HTML
 	 */
-	public function get_saved_payment_method_option_html( $token ) {
+	public function get_saved_payment_method_option_html($token) {
 
 		printf(
 			'<li class="getpaid-payment-method form-group mb-3">
@@ -623,11 +623,11 @@ 
 					<span>%3$s</span>
 				</label>
 			</li>',
-			esc_attr( $this->id ),
-			esc_attr( $token['id'] ),
-			esc_html( $token['name'] ),
-			checked( empty( $token['default'] ), false, false ),
-			empty( $token['currency'] ) ? 'none' : esc_attr( $token['currency'] )
+			esc_attr($this->id),
+			esc_attr($token['id']),
+			esc_html($token['name']),
+			checked(empty($token['default']), false, false),
+			empty($token['currency']) ? 'none' : esc_attr($token['currency'])
 		);
 
 	}
@@ -639,7 +639,7 @@ 
 	 */
 	public function get_new_payment_method_option_html() {
 
-		$label = apply_filters( 'getpaid_new_payment_method_label', $this->new_method_label ? $this->new_method_label : __( 'Use a new payment method', 'invoicing' ), $this );
+		$label = apply_filters('getpaid_new_payment_method_label', $this->new_method_label ? $this->new_method_label : __('Use a new payment method', 'invoicing'), $this);
 
 		printf(
 			'<li class="getpaid-new-payment-method">
@@ -648,8 +648,8 @@ 
 					<span>%2$s</span>
 				</label>
 			</li>',
-			esc_attr( $this->id ),
-			esc_html( $label )
+			esc_attr($this->id),
+			esc_html($label)
 		);
 
 	}
@@ -664,10 +664,10 @@ 
 		aui()->input(
 			array(
 				'type'       => 'checkbox',
-				'name'       => esc_attr( "getpaid-$this->id-new-payment-method" ),
-				'id'         => esc_attr( uniqid( $this->id ) ),
+				'name'       => esc_attr("getpaid-$this->id-new-payment-method"),
+				'id'         => esc_attr(uniqid($this->id)),
 				'required'   => false,
-				'label'      => esc_html__( 'Save payment method', 'invoicing' ),
+				'label'      => esc_html__('Save payment method', 'invoicing'),
 				'value'      => 'true',
 				'checked'    => true,
 				'wrap_class' => 'getpaid-save-payment-method pt-1 pb-1',
@@ -682,9 +682,9 @@ 
 	 *
 	 * @return array
 	 */
-	public function register_gateway( $gateways ) {
+	public function register_gateway($gateways) {
 
-		$gateways[ $this->id ] = array(
+		$gateways[$this->id] = array(
 
 			'admin_label'    => $this->method_title,
             'checkout_label' => $this->title,
@@ -702,13 +702,13 @@ 
 	 * @param  WPInv_Invoice|null $invoice Invoice object or null.
 	 * @return bool
 	 */
-	public function is_sandbox( $invoice = null ) {
+	public function is_sandbox($invoice = null) {
 
-		if ( is_a( $invoice, 'WPInv_Invoice' ) && ! $invoice->needs_payment() ) {
+		if (is_a($invoice, 'WPInv_Invoice') && !$invoice->needs_payment()) {
 			return $invoice->get_mode() === 'test';
 		}
 
-		return wpinv_is_test_mode( $this->id );
+		return wpinv_is_test_mode($this->id);
 
 	}
 
@@ -726,15 +726,15 @@ 
 	 *
 	 * @return bool
 	 */
-	public function validate_currency( $validation, $currency ) {
+	public function validate_currency($validation, $currency) {
 
 		// Required currencies.
-		if ( ! empty( $this->currencies ) && ! in_array( $currency, $this->currencies ) ) {
+		if (!empty($this->currencies) && !in_array($currency, $this->currencies)) {
 			return false;
 		}
 
 		// Excluded currencies.
-		if ( ! empty( $this->exclude_currencies ) && in_array( $currency, $this->exclude_currencies ) ) {
+		if (!empty($this->exclude_currencies) && in_array($currency, $this->exclude_currencies)) {
 			return false;
 		}
 
@@ -745,13 +745,13 @@ 
 	 * Displays an error
 	 *
 	 */
-	public function show_error( $code, $message, $type ) {
+	public function show_error($code, $message, $type) {
 
-		if ( is_admin() ) {
-			getpaid_admin()->{"show_$type"}( $message );
+		if (is_admin()) {
+			getpaid_admin()->{"show_$type"}($message);
 		}
 
-		wpinv_set_error( $code, $message, $type );
+		wpinv_set_error($code, $message, $type);
 
 	}