estimates.php

<?php

namespace Project\WooCommerce\Gateways;

class Estimates extends \WC_Payment_Gateway {
 
	const ID = 'estimates-gateway';
	const WC_STATUS = 'wc-estimate';

	public function __construct() {
		$this->id                 = self::ID;
		$this->icon               = '';
		$this->has_fields         = false;
		$this->method_title       = __( 'Estimates', 'tribe' );
		$this->method_description = __( 'Allows generating estimates before paying', 'tribe' );
		
		add_filter( 'woocommerce_available_payment_gateways', [ $this, 'check_access' ], 10, 1 );
	}

	// Can the current user access this gateway?
	public function check_access( $payment_gateways ) {
		if ( is_admin() ) {
			return $payment_gateways;
		}

		if ( ! is_user_logged_in() ) {
			unset( $payment_gateways[ self::ID ] );
			return $payment_gateways;
		}

		$user = User::factory( get_current_user_id() );
		if ( ! $user->can_access_quotes() ) {
			unset( $payment_gateways[ self::ID ] );
		}

		return $payment_gateways;
	}

	// runs when checking out with this gateway selected
	public function process_payment( $order_id ){
		$order = new \WC_Order( $order_id );

		wc_reduce_stock_levels( $order_id );
		$order->update_status( self::WC_STATUS, __( 'Awaiting estimate confirmation', 'tribe' ) );
		WC()->cart->empty_cart();

		return [
			'result'   => 'success',
			'redirect' => some_custom_thank_you_page_url(),
		];

	}

	// hooked into plugins_loaded
	public static function hook(){
		add_filter( 'wc_order_statuses', function( $statuses ) {
			$statuses[ self::WC_STATUS ] = __( 'Estimate', 'tribe' );
			return $statuses;
		} );
		
		add_filter( 'woocommerce_payment_gateways', function ( $gateways ){
			array_unshift( $gateways, __CLASS__ );
			return $gateways;
		} );
	}
  
}