<?php

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namespace WPForms\Integrations;

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/**

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* Class Loader gives ability to track/load all integrations.

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*

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* @since 1.4.8

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*/

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class Loader {

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/**

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* Get the instance of a class and store it in itself.

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*

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* @since 1.4.8

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*/

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public static function get_instance() {

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static $instance;

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if ( ! $instance ) {

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$instance = new Loader();

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}

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return $instance;

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}

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/**

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* Loader constructor.

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*

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* @since 1.4.8

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*/

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public function __construct() {

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$core_class_names = [

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'SMTP\Notifications',

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'LiteConnect\LiteConnect',

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'Divi\Divi',

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'Elementor\Elementor',

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'WPCode\WPCode',

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'WPCode\RegisterLibrary',

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'Gutenberg\FormSelector',

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'WPMailSMTP\Notifications',

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'WPorg\Translations',

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'Stripe\Stripe',

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'UncannyAutomator\UncannyAutomator',

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'UsageTracking\UsageTracking',

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'DefaultThemes\DefaultThemes',

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'Translations\Translations',

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'DefaultContent\DefaultContent',

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'PopupMaker\PopupMaker',

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'WooCommerce\Notifications',

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'AI\AI',

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'ConstantContact\V3\ConstantContact',

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'Square\Square',

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'MotoPress\MotoPress',

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'Abilities\Abilities',

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];

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/**

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* Filter available integrations.

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*

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* @since 1.7.0

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*

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* @param array $core_class_names Array of core class names.

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*/

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$class_names = (array) apply_filters( 'wpforms_integrations_available', $core_class_names ); // phpcs:ignore WPForms.PHP.ValidateHooks.InvalidHookName

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foreach ( $class_names as $class_name ) {

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$integration = $this->register_class( $class_name );

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wpforms()->register_instance( $class_name, $integration );

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if ( ! empty( $integration ) ) {

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$this->load_integration( $integration );

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}

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}

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}

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/**

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* Load an integration.

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*

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* @param IntegrationInterface $integration Instance of an integration class.

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*

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* @since 1.4.8

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*/

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protected function load_integration( IntegrationInterface $integration ) {

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if ( $integration->allow_load() ) {

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$integration->load();

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}

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}

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/**

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* Register a new class.

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*

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* @since 1.5.6

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*

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* @param string $class_name Class name to register.

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*

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* @return IntegrationInterface Instance of class.

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*/

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public function register_class( $class_name ) {

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$class_name = sanitize_text_field( $class_name );

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// Load Lite class if exists.

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if ( class_exists( 'WPForms\Lite\Integrations\\' . $class_name ) && ! wpforms()->is_pro() ) {

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$class_name = 'WPForms\Lite\Integrations\\' . $class_name;

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return new $class_name();

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}

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// Load Pro class if exists.

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if ( class_exists( 'WPForms\Pro\Integrations\\' . $class_name ) && wpforms()->is_pro() ) {

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$class_name = 'WPForms\Pro\Integrations\\' . $class_name;

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return new $class_name();

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}

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// Load general class if neither Pro nor Lite class exists.

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if ( class_exists( __NAMESPACE__ . '\\' . $class_name ) ) {

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$class_name = __NAMESPACE__ . '\\' . $class_name;

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return new $class_name();

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}

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}

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}

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