<?php

/*
WP Full Pay
https://paymentsplugin.com
Complete Stripe payments integration for WordPress
Themeisle
7.1.6
https://themeisle.com
*/

class MM_WPFS {
	const VERSION = '8.3.4';
	const REQUEST_PARAM_NAME_WPFS_RENDERED_FORMS = 'wpfs_rendered_forms';

	const HANDLE_WP_FULL_STRIPE_JS = 'wp-full-stripe-js';

	const SHORTCODE_FULLSTRIPE_FORM = 'fullstripe_form';
	const HANDLE_WP_FULL_STRIPE_UTILS_JS = 'wp-full-stripe-utils-js';
	const HANDLE_SPRINTF_JS = 'sprintf-js';
	const HANDLE_STRIPE_JS_V_3 = 'stripe-js-v3';
	const HANDLE_STYLE_WPFS_VARIABLES = 'wpfs-variables-css';
	const HANDLE_STYLE_WPFS_FORMS = 'wpfs-forms-css';
	const HANDLE_GOOGLE_RECAPTCHA_V_2 = 'google-recaptcha-v2';
	const SOURCE_GOOGLE_RECAPTCHA_V2_API_JS = 'https://www.google.com/recaptcha/api.js';
	const PRICING_URL = 'https://paymentsplugin.com/pricing/';

	// Generic form types
	const FORM_TYPE_PAYMENT = 'payment';
	const FORM_TYPE_SUBSCRIPTION = 'subscription';
	const FORM_TYPE_DONATION = 'donation';
	const FORM_TYPE_SAVE_CARD = 'save_card';

	const FORM_TYPE_INLINE_PAYMENT = 'inline_payment';
	const FORM_TYPE_CHECKOUT_PAYMENT = 'checkout_payment';
	const FORM_TYPE_INLINE_SUBSCRIPTION = 'inline_subscription';
	const FORM_TYPE_CHECKOUT_SUBSCRIPTION = 'checkout_subscription';
	const FORM_TYPE_INLINE_SAVE_CARD = 'inline_save_card';
	const FORM_TYPE_CHECKOUT_SAVE_CARD = 'checkout_save_card';
	const FORM_TYPE_INLINE_DONATION = 'inline_donation';
	const FORM_TYPE_CHECKOUT_DONATION = 'checkout_donation';

	// legacy form types, used only for shortcodes
	const FORM_TYPE_POPUP_PAYMENT = 'popup_payment';
	const FORM_TYPE_POPUP_SUBSCRIPTION = 'popup_subscription';
	const FORM_TYPE_POPUP_SAVE_CARD = 'popup_save_card';
	const FORM_TYPE_POPUP_DONATION = 'popup_donation';

	const FORM_TYPE_ADMIN_CREATE_FORM = 'createForm';
	const FORM_TYPE_ADMIN_CONFIGURE_STRIPE_ACCOUNT = 'configureStripeAccount';
	const FORM_TYPE_ADMIN_CONFIGURE_CUSTOMER_PORTAL = 'configureMyAccount';
	const FORM_TYPE_ADMIN_CONFIGURE_SECURITY = 'configureSecurity';
	const FORM_TYPE_ADMIN_CONFIGURE_EMAIL_OPTIONS = 'configureEmailOptions';
	const FORM_TYPE_ADMIN_CONFIGURE_EMAIL_TEMPLATES = 'configureEmailTemplates';
	const FORM_TYPE_ADMIN_CONFIGURE_FORMS_OPTIONS = 'configureFormsOptions';
	const FORM_TYPE_ADMIN_CONFIGURE_FORMS_APPEARANCE = 'configureFormsAppearance';
	const FORM_TYPE_ADMIN_CONFIGURE_WP_DASHBOARD = 'configureWpDashboard';
	const FORM_TYPE_ADMIN_CONFIGURE_FEE_RECOVERY = 'configurefeeRecovery';
	const FORM_TYPE_ADMIN_CONFIGURE_LOGGING = 'configureLogging';
	const FORM_TYPE_ADMIN_EMPTY_LOG = 'emptyLog';

	const FORM_TYPE_ADMIN_INLINE_SAVE_CARD_FORM = 'inlineSaveCardForm';
	const FORM_TYPE_ADMIN_CHECKOUT_SAVE_CARD_FORM = 'checkoutSaveCardForm';
	const FORM_TYPE_ADMIN_INLINE_DONATION_FORM = 'inlineDonationForm';
	const FORM_TYPE_ADMIN_CHECKOUT_DONATION_FORM = 'checkoutDonationForm';
	const FORM_TYPE_ADMIN_ADD_CUSTOM_FIELD = 'addCustomField';
	const FORM_TYPE_ADMIN_CREATE_ONETIME_PRODUCT = 'createOnetimeProduct';
	const FORM_TYPE_ADMIN_CREATE_RECURRING_PRODUCT = 'addPlanProperties';
	const FORM_TYPE_ADMIN_ADD_SUGGESTED_DONATION_AMOUNT = 'addSuggestedDonationAmount';
	const FORM_TYPE_ADMIN_INLINE_PAYMENT_FORM = 'inlinePaymentForm';
	const FORM_TYPE_ADMIN_CHECKOUT_PAYMENT_FORM = 'checkoutPaymentForm';
	const FORM_TYPE_ADMIN_INLINE_SUBSCRIPTION_FORM = 'inlineSubscriptionForm';
	const FORM_TYPE_ADMIN_CHECKOUT_SUBSCRIPTION_FORM = 'checkoutSubscriptionForm';
	const FORM_TYPE_ADMIN_ADD_PLAN_PROPERTIES = 'addPlanProperties';
	const FORM_TYPE_ADMIN_EDIT_PRODUCT_PROPERTIES = 'editProductProperties';
	const FORM_TYPE_ADMIN_SEND_TEST_EMAIL = 'sendTestEmail';

	const FORM_LAYOUT_INLINE = 'inline';
	const FORM_LAYOUT_CHECKOUT = 'checkout';

	const STRIPE_API_MODE_TEST = 'test';
	const STRIPE_API_MODE_LIVE = 'live';

	const TEST_ACCOUNT_ID = 'testAccountId';
	const LIVE_ACCOUNT_ID = 'liveAccountId';
	const USE_WP_TEST_PLATFORM = 'useWpTestPlatform';
	const USE_WP_LIVE_PLATFORM = 'useWpLivePlatform';

	const REDIRECT_TYPE_SHOW_CONFIRMATION_MESSAGE = 'showConfirmationMessage';
	const REDIRECT_TYPE_TO_PAGE_OR_POST = 'redirectToPageOrPost';
	const REDIRECT_TYPE_TO_CUSTOM_URL = 'redirecToCustomUrl';

	const VAT_RATE_TYPE_NO_VAT = 'no_vat';
	const VAT_RATE_TYPE_FIXED_VAT = 'fixed_vat';
	const VAT_RATE_TYPE_CUSTOM_VAT = 'custom_vat';

	const NO_VAT_PERCENT = 0.0;

	const DEFAULT_BILLING_COUNTRY_INITIAL_VALUE = 'US';

	const PREFERRED_LANGUAGE_AUTO = 'auto';

	const DEFAULT_CUSTOM_INPUT_FIELD_MAX_COUNT = 10;

	const PAYMENT_TYPE_LIST_OF_AMOUNTS = 'list_of_amounts';
	const PAYMENT_TYPE_CUSTOM_AMOUNT = 'custom_amount';
	const PAYMENT_TYPE_SPECIFIED_AMOUNT = 'specified_amount';
	const PAYMENT_TYPE_CARD_CAPTURE = 'card_capture';

	const CURRENCY_USD = 'usd';
	const CURRENCY_EUR = 'eur';

	const CANCEL_SUBSCRIPTION_IMMEDIATELY = 'immediately';
	const CANCEL_SUBSCRIPTION_AT_PERIOD_END = 'atPeriodEnd';

	const DECIMAL_SEPARATOR_SYMBOL_DOT = 'dot';
	const DECIMAL_SEPARATOR_SYMBOL_COMMA = 'comma';

	const CHARGE_TYPE_IMMEDIATE = 'immediate';
	const CHARGE_TYPE_AUTHORIZE_AND_CAPTURE = 'authorize_and_capture';

	const PAYMENT_METHOD_CARD = 'card';

	const STRIPE_CHARGE_STATUS_SUCCEEDED = 'succeeded';
	const STRIPE_CHARGE_STATUS_PENDING = 'pending';
	const STRIPE_CHARGE_STATUS_FAILED = 'failed';

	const PAYMENT_STATUS_UNKNOWN = 'unknown';
	const PAYMENT_STATUS_FAILED = 'failed';
	const PAYMENT_STATUS_REFUNDED = 'refunded';
	const PAYMENT_STATUS_EXPIRED = 'expired';
	const PAYMENT_STATUS_PAID = 'paid';
	const PAYMENT_STATUS_AUTHORIZED = 'authorized';
	const PAYMENT_STATUS_PENDING = 'pending';
	const PAYMENT_STATUS_RELEASED = 'released';

	const REFUND_STATUS_SUCCEEDED = 'succeeded';
	const REFUND_STATUS_FAILED = 'failed';
	const REFUND_STATUS_PENDING = 'pending';
	const REFUND_STATUS_CANCELED = 'canceled';

	const SUBSCRIPTION_STATUS_ENDED = 'ended';
	const SUBSCRIPTION_STATUS_CANCELLED = 'cancelled';

	const SELECTOR_STYLE_RADIO_BUTTONS = 'radio-buttons';
	const SELECTOR_STYLE_DROPDOWN = 'dropdown';
	const SELECTOR_STYLE_BUTTON_GROUP = 'button-group';
	const ELEMENTS_THEME_STRIPE = 'stripe';
	const ELEMENTS_THEME_NIGHT = 'night';
	const ELEMENTS_THEME_FLAT = 'flat';

	const PLAN_SELECTOR_STYLE_DROPDOWN = 'dropdown';
	const PLAN_SELECTOR_STYLE_RADIO_BUTTONS = 'radio-buttons';

	const JS_VARIABLE_WPFS_FORM_OPTIONS = 'wpfsFormSettings';
	const JS_VARIABLE_AJAX_URL = 'ajaxUrl';
	const JS_VARIABLE_STRIPE_KEY = 'stripeKey';
	const JS_VARIABLE_STRIPE_PLATFORM_KEY = 'stripePlatformKey';
	const JS_VARIABLE_STRIPE_ACCOUNT_ID = 'stripeAccountId';
	const JS_VARIABLE_GOOGLE_RECAPTCHA_SITE_KEY = 'googleReCaptchaSiteKey';
	const JS_VARIABLE_L10N = 'l10n';
	const JS_VARIABLE_FORM_FIELDS = 'formFields';

	const ACTION_NAME_BEFORE_SAVE_CARD = 'fullstripe_before_card_capture';
	const ACTION_NAME_AFTER_SAVE_CARD = 'fullstripe_after_card_capture';
	const ACTION_NAME_BEFORE_CHECKOUT_SAVE_CARD = 'fullstripe_before_checkout_card_capture';
	const ACTION_NAME_AFTER_CHECKOUT_SAVE_CARD = 'fullstripe_after_checkout_card_capture';

	const ACTION_NAME_BEFORE_PAYMENT_CHARGE = 'fullstripe_before_payment_charge';
	const ACTION_NAME_AFTER_PAYMENT_CHARGE = 'fullstripe_after_payment_charge';
	const ACTION_NAME_BEFORE_CHECKOUT_PAYMENT_CHARGE = 'fullstripe_before_checkout_payment_charge';
	const ACTION_NAME_AFTER_CHECKOUT_PAYMENT_CHARGE = 'fullstripe_after_checkout_payment_charge';

	const ACTION_NAME_BEFORE_DONATION_CHARGE = 'fullstripe_before_donation_charge';
	const ACTION_NAME_AFTER_DONATION_CHARGE = 'fullstripe_after_donation_charge';
	const ACTION_NAME_BEFORE_CHECKOUT_DONATION_CHARGE = 'fullstripe_before_checkout_donation_charge';
	const ACTION_NAME_AFTER_CHECKOUT_DONATION_CHARGE = 'fullstripe_after_checkout_donation_charge';

	const ACTION_NAME_BEFORE_SUBSCRIPTION_CHARGE = 'fullstripe_before_subscription_charge';
	const ACTION_NAME_AFTER_SUBSCRIPTION_CHARGE = 'fullstripe_after_subscription_charge';
	const ACTION_NAME_BEFORE_CHECKOUT_SUBSCRIPTION_CHARGE = 'fullstripe_before_checkout_subscription_charge';
	const ACTION_NAME_AFTER_CHECKOUT_SUBSCRIPTION_CHARGE = 'fullstripe_after_checkout_subscription_charge';

	const ACTION_NAME_BEFORE_SUBSCRIPTION_CANCELLATION = 'fullstripe_before_subscription_cancellation';
	const ACTION_NAME_AFTER_SUBSCRIPTION_CANCELLATION = 'fullstripe_after_subscription_cancellation';

	const ACTION_NAME_BEFORE_SUBSCRIPTION_UPDATE = 'fullstripe_before_subscription_update';
	const ACTION_NAME_AFTER_SUBSCRIPTION_UPDATE = 'fullstripe_after_subscription_update';

	const ACTION_NAME_BEFORE_SUBSCRIPTION_ACTIVATION = 'fullstripe_before_subscription_activation';
	const ACTION_NAME_AFTER_SUBSCRIPTION_ACTIVATION = 'fullstripe_after_subscription_activation';

	const ACTION_NAME_FIRE_WEBHOOK = 'fullstripe_fire_webhook';

	const FILTER_NAME_SELECT_SUBSCRIPTION_PLAN = 'fullstripe_select_subscription_plan';
	const FILTER_NAME_SET_CUSTOM_AMOUNT = 'fullstripe_set_custom_amount';
	const FILTER_NAME_ADD_TRANSACTION_METADATA = 'fullstripe_add_transaction_metadata';
	const FILTER_NAME_MODIFY_EMAIL_MESSAGE = 'fullstripe_modify_email_message';
	const FILTER_NAME_MODIFY_EMAIL_SUBJECT = 'fullstripe_modify_email_subject';
	const FILTER_NAME_GET_UPGRADE_DOWNGRADE_PLANS = 'fullstripe_get_upgrade_downgrade_plans';

	const FILTER_NAME_CUSTOMER_PORTAL_HEADER = 'fullstripe_customer_portal_header';
	const FILTER_NAME_CUSTOMER_PORTAL_FOOTER = 'fullstripe_customer_portal_footer';

	const FILTER_NAME_FORM_FIELD_CONFIGURATION = 'fullstripe_form_field_configuration';

	const FILTER_NAME_DETERMINE_TAX_LABEL = 'fullstripe_determine_tax_label';

	const STRIPE_OBJECT_ID_PREFIX_PAYMENT_INTENT = 'pi_';
	const STRIPE_OBJECT_ID_PREFIX_CHARGE = 'ch_';
	const PAYMENT_OBJECT_TYPE_UNKNOWN = 'Unknown';
	const PAYMENT_OBJECT_TYPE_STRIPE_PAYMENT_INTENT = '\StripeWPFS\Stripe\PaymentIntent';
	const PAYMENT_OBJECT_TYPE_STRIPE_CHARGE = '\StripeWPFS\Stripe\Charge';

	const SUBSCRIBER_STATUS_CANCELLED = 'cancelled';
	const SUBSCRIBER_STATUS_RUNNING = 'running';
	const SUBSCRIBER_STATUS_ENDED = 'ended';
	const SUBSCRIBER_STATUS_INCOMPLETE = 'incomplete';

	const DONATION_STATUS_UNKNOWN = 'unknown';
	const DONATION_STATUS_PAID = 'paid';
	const DONATION_STATUS_RUNNING = 'running';
	const DONATION_STATUS_REFUNDED = 'refunded';

	const HTTP_PARAM_NAME_PLAN = 'wpfsPlan';
	const HTTP_PARAM_NAME_AMOUNT = 'wpfsAmount';

	const DONATION_PLAN_ID_PREFIX = "wpfsDonationPlanV2";
	const SUBSCRIPTION_PLAN_ID_PREFIX = "wpfsSubscriptionPlan";

	const EMAIL_TEMPLATE_ID_PAYMENT_RECEIPT = 'paymentMade';
	const EMAIL_TEMPLATE_ID_PAYMENT_RECEIPT_STRIPE = 'paymentMadeStripe';
	const EMAIL_TEMPLATE_ID_CARD_SAVED = 'cardCaptured';
	const EMAIL_TEMPLATE_ID_SUBSCRIPTION_RECEIPT = 'subscriptionStarted';
	const EMAIL_TEMPLATE_ID_SUBSCRIPTION_RECEIPT_STRIPE = 'subscriptionStartedStripe';
	const EMAIL_TEMPLATE_ID_SUBSCRIPTION_ENDED = 'subscriptionFinished';
	const EMAIL_TEMPLATE_ID_DONATION_RECEIPT = 'donationMade';
	const EMAIL_TEMPLATE_ID_DONATION_RECEIPT_STRIPE = 'donationMadeStripe';
	const EMAIL_TEMPLATE_ID_CUSTOMER_PORTAL_SECURITY_CODE = 'cardUpdateConfirmationRequest';

	const COUNTRY_CODE_UNITED_STATES = 'US';

	// These values go into the database as well, don't change them
	const FIELD_VALUE_TAX_RATE_NO_TAX = 'taxRateNoTax';
	const FIELD_VALUE_TAX_RATE_STRIPE_TAX = 'taxRateStripeTax';
	const FIELD_VALUE_TAX_RATE_FIXED = 'taxRateFixed';
	const FIELD_VALUE_TAX_RATE_DYNAMIC = 'taxRateDynamic';

	// This value is transient, used only on the Admin UI
	const FIELD_VALUE_TAX_RATE_TAX_RATES = 'taxRateTaxRates';

	const PRICE_ID_CUSTOM_AMOUNT = 'customAmount';
	const LINE_ITEM_TYPE_CUSTOM_AMOUNT = 'customAmount';
	const LINE_ITEM_TYPE_SETUP_FEE = 'setupFee';
	const LINE_ITEM_TYPE_PRODUCT = 'product';
	const LINE_ITEM_SUBTYPE_DISCOUNT = 'discount';
	const LINE_ITEM_SUBTYPE_TAX = 'tax';

	const DISCOUNT_TYPE_PROMOTION_CODE = 'promotionCode';
	const DISCOUNT_TYPE_COUPON = 'coupon';

	const ONBOARDING_WIZARD_OPTION_NAME = 'fullstripe_onboarding_wizard';

	const FEE_RECOVERY_INHERIT = 'inherit';
	const FEE_RECOVERY_CUSTOMIZE = 'customize';
	const FEE_RECOVERY_DISABLE = 'disable';

	public static $instance;

	private $loggerService;
	private $logger;

	/** @var MM_WPFS_Options */
	private $options = null;
	/** @var MM_WPFS_Customer */
	private $customer = null;
	/** @var MM_WPFS_Admin */
	private $admin = null;
	/** @var MM_WPFS_Database */
	private $database = null;
	/** @var MM_WPFS_Stripe */
	private $stripe = null;
	/** @var MM_WPFS_Admin_Menu */
	private $adminMenu = null;
	/** @var MM_WPFS_TransactionDataService */
	private $transactionDataService = null;
	/** @var MM_WPFS_CustomerPortalService */
	private $customerPortalService = null;
	/** @var MM_WPFS_ThankYou */
	private $thankYou = null;
	/** @var MM_WPFS_CheckoutSubmissionService */
	private $checkoutSubmissionService = null;
	/** @var MM_WPFS_StaticContext */
	private $staticContext = null;
	/**
	 * @var bool Choose to load scripts and styles the WordPress way. We should move this field to a wp_option later.
	 */
	private $loadScriptsAndStylesWithActionHook = false;
	/**
	 * @var bool Turn this off if you don't want to load the form CSS styles
	 */
	private $includeDefaultStyles = true;

	private $wpfsJsHandles = [ 
		self::HANDLE_WP_FULL_STRIPE_JS,
		self::HANDLE_WP_FULL_STRIPE_UTILS_JS,
		self::HANDLE_SPRINTF_JS,
		self::HANDLE_STRIPE_JS_V_3,
		self::HANDLE_GOOGLE_RECAPTCHA_V_2
	];

	public function __construct() {

		$this->includes();
		$this->setup();
		$this->hooks();

	}

	function includes() {

		include 'wpfs-logger-service.php';
		include 'wpfs-options.php';
		include 'wpfs-context.php';
		include 'wpfs-localization.php';
		include 'wp/class-wp-list-table.php';
		include 'wpfs-tables.php';
		include 'wpfs-languages.php';
		include 'wpfs-form-fields-configurable.php';
		include 'wpfs-admin.php';
		include 'wpfs-admin-menu.php';
		include 'wpfs-block.php';
		include 'wpfs-form-views.php';
		include 'wpfs-form-models.php';
		include 'wpfs-form-validators.php';
		include 'wpfs-admin-views.php';
		include 'wpfs-admin-models.php';
		include 'wpfs-admin-validators.php';
		include 'wpfs-assets.php';
		include 'wpfs-pricing.php';
		include 'wpfs-customer-portal-service.php';
		include 'wpfs-thank-you.php';
		include 'wpfs-customer.php';
		include 'wpfs-checkout-charge-handler.php';
		include 'wpfs-checkout-submission-service.php';
		include 'wpfs-countries.php';
		include 'wpfs-states.php';
		include 'wpfs-currencies.php';
		include 'wpfs-database.php';
		include 'wpfs-mailer.php';
		include 'wpfs-patcher.php';
		include 'wpfs-payments.php';
		include 'wpfs-help.php';
		include 'wpfs-transaction-data-service.php';
		include 'wpfs-web-hook-events.php';
		include 'wpfs-api.php';
		include 'wpfs-macros.php';
		include 'wpfs-utils.php';
		include 'wpfs-view-template-utils.php';
		include 'wpfs-recaptcha.php';
		include 'wpfs-shortcode.php';

		do_action( 'fullstripe_includes_action' );
	}

	function setup() {

		$this->options = new MM_WPFS_Options();
		$this->updateOptionDefaults();
		if ( $this->options->getVersion() != self::VERSION ) {
			$this->upgradeOptions();
			MM_WPFS::setup_db( false );
		}

		$this->loggerService = new MM_WPFS_LoggerService( $this->options->get( MM_WPFS_Options::OPTION_LOG_LEVEL ), $this->options->get( MM_WPFS_Options::OPTION_LOG_TO_WEB_SERVER ) == 1 );
		$this->logger = $this->loggerService->createAdminLogger( __CLASS__ );
		$this->staticContext = new MM_WPFS_StaticContext( $this->loggerService, $this->options );

		$this->setupErrorHandlers();


		$this->admin = new MM_WPFS_Admin( $this->loggerService );
		$this->adminMenu = new MM_WPFS_Admin_Menu( $this->loggerService );
		$this->customer = new MM_WPFS_Customer( $this->loggerService );
		$this->database = new MM_WPFS_Database();
		$this->stripe = new MM_WPFS_Stripe( MM_WPFS_Stripe::getStripeAuthenticationToken( $this->staticContext ), $this->loggerService );
		$this->transactionDataService = new MM_WPFS_TransactionDataService();
		$this->customerPortalService = new MM_WPFS_CustomerPortalService( $this->loggerService );
		$this->checkoutSubmissionService = new MM_WPFS_CheckoutSubmissionService( $this->loggerService );
		$this->thankYou = new MM_WPFS_ThankYou( $this->loggerService );
		new MM_WPFS_Block();

		do_action( 'fullstripe_setup_action' );
	}

	protected function setupErrorHandlers() {
		if ( boolval( $this->options->get( MM_WPFS_Options::OPTION_CATCH_UNCAUGHT_ERRORS ) ) ) {
			set_error_handler( [ $this, 'handleError' ], E_ALL | E_STRICT );
			set_exception_handler( [ $this, 'handleException' ] );
			ini_set( 'display_errors', '0' );
		}
	}

	public function handleError( int $errNo, string $errStr, string $errFile, int $errLine ) {
		$this->logger->error( __FUNCTION__, "Uncaught error in {$errFile}:{$errLine}: {$errNo} - {$errStr}" );
	}

	public function handleException( Throwable $ex ) {
		$this->logger->error( __FUNCTION__, "Uncaught exception - " . $ex->getMessage(), $ex );
	}

	protected function upgradeOptions() {
		$this->options->set( MM_WPFS_Options::OPTION_VERSION, self::VERSION );

		$emailReceipts = json_decode( $this->options->get( MM_WPFS_Options::OPTION_EMAIL_TEMPLATES ) );
		MM_WPFS_Mailer::updateMissingEmailTemplatesWithDefaults( $emailReceipts );
		$this->options->set( MM_WPFS_Options::OPTION_EMAIL_TEMPLATES, json_encode( $emailReceipts ) );

		if ( $this->options->get( MM_WPFS_Options::OPTION_CUSTOM_INPUT_FIELD_MAX_COUNT ) != MM_WPFS::DEFAULT_CUSTOM_INPUT_FIELD_MAX_COUNT ) {
			$this->options->set( MM_WPFS_Options::OPTION_CUSTOM_INPUT_FIELD_MAX_COUNT, MM_WPFS::DEFAULT_CUSTOM_INPUT_FIELD_MAX_COUNT );
		}
	}
	protected function updateOptionDefaults() {
		$updateSet = [ 
			MM_WPFS_Options::OPTION_VERSION => self::VERSION,
			MM_WPFS_Options::OPTION_API_TEST_SECRET_KEY => 'YOUR_TEST_SECRET_KEY',
			MM_WPFS_Options::OPTION_API_TEST_PUBLISHABLE_KEY => 'YOUR_TEST_PUBLISHABLE_KEY',
			MM_WPFS_Options::OPTION_API_LIVE_SECRET_KEY => 'YOUR_LIVE_SECRET_KEY',
			MM_WPFS_Options::OPTION_API_LIVE_PUBLISHABLE_KEY => 'YOUR_LIVE_PUBLISHABLE_KEY',
			MM_WPFS_Options::OPTION_API_MODE => MM_WPFS::STRIPE_API_MODE_TEST,
			MM_WPFS_Options::OPTION_FORM_CUSTOM_CSS => '',
			MM_WPFS_Options::OPTION_RECEIPT_EMAIL_TYPE => MM_WPFS_Options::OPTION_VALUE_RECEIPT_EMAIL_PLUGIN,
			MM_WPFS_Options::OPTION_EMAIL_TEMPLATES => json_encode( MM_WPFS_Mailer::getDefaultEmailTemplates() ),
			MM_WPFS_Options::OPTION_EMAIL_NOTIFICATION_SENDER_ADDRESS => get_bloginfo( 'admin_email' ),
			MM_WPFS_Options::OPTION_EMAIL_NOTIFICATION_BCC_ADDRESSES => json_encode( [] ),
			MM_WPFS_Options::OPTION_FILL_IN_EMAIL_FOR_LOGGED_IN_USERS => '1',
			MM_WPFS_Options::OPTION_WEBHOOK_TOKEN => $this->createWebhookToken(),
			MM_WPFS_Options::OPTION_CUSTOM_INPUT_FIELD_MAX_COUNT => MM_WPFS::DEFAULT_CUSTOM_INPUT_FIELD_MAX_COUNT,
			MM_WPFS_Options::OPTION_SECURE_INLINE_FORMS_WITH_GOOGLE_RE_CAPTCHA => '0',
			MM_WPFS_Options::OPTION_SECURE_CHECKOUT_FORMS_WITH_GOOGLE_RE_CAPTCHA => '0',
			MM_WPFS_Options::OPTION_SECURE_CUSTOMER_PORTAL_WITH_GOOGLE_RE_CAPTCHA => '0',
			MM_WPFS_Options::OPTION_GOOGLE_RE_CAPTCHA_SITE_KEY => 'YOUR_GOOGLE_RECAPTCHA_SITE_KEY',
			MM_WPFS_Options::OPTION_GOOGLE_RE_CAPTCHA_SECRET_KEY => 'YOUR_GOOGLE_RECAPTCHA_SECRET_KEY',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_SHOW_SUBSCRIPTIONS_TO_CUSTOMERS => '1',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_LET_SUBSCRIBERS_CANCEL_SUBSCRIPTIONS => '1',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_LET_SUBSCRIBERS_UPDOWNGRADE_SUBSCRIPTIONS => '0',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_WHEN_CANCEL_SUBSCRIPTIONS => MM_WPFS::CANCEL_SUBSCRIPTION_IMMEDIATELY,
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_SHOW_INVOICES_SECTION => '1',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_SHOW_ALL_INVOICES => '0',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_SCROLLING_PANE_INTO_VIEW => '1',
			MM_WPFS_Options::OPTION_CUSTOMER_PORTAL_USE_STRIPE_CUSTOMER_PORTAL => '0',
			MM_WPFS_Options::OPTION_DECIMAL_SEPARATOR_SYMBOL => MM_WPFS::DECIMAL_SEPARATOR_SYMBOL_DOT,
			MM_WPFS_Options::OPTION_SHOW_CURRENCY_SYMBOL_INSTEAD_OF_CODE => '1',
			MM_WPFS_Options::OPTION_SHOW_CURRENCY_SIGN_AT_FIRST_POSITION => '1',
			MM_WPFS_Options::OPTION_PUT_WHITESPACE_BETWEEN_CURRENCY_AND_AMOUNT => '0',
			MM_WPFS_Options::OPTION_LAST_WEBHOOK_EVENT_TEST => null,
			MM_WPFS_Options::OPTION_LAST_WEBHOOK_EVENT_LIVE => null,
			MM_WPFS_Options::OPTION_LOG_LEVEL => MM_WPFS_LoggerService::LEVEL_ERROR,
			MM_WPFS_Options::OPTION_LOG_TO_WEB_SERVER => 0,
			MM_WPFS_Options::OPTION_CATCH_UNCAUGHT_ERRORS => 0,
			MM_WPFS_Options::OPTION_SET_FORM_FIELDS_VIA_URL_PARAMETERS => 0,
			MM_WPFS_Options::OPTION_DEFAULT_BILLING_COUNTRY => MM_WPFS::DEFAULT_BILLING_COUNTRY_INITIAL_VALUE,
			MM_WPFS_Options::OPTION_USE_WP_TEST_PLATFORM => '0',
			MM_WPFS_Options::OPTION_USE_WP_LIVE_PLATFORM => '0',
			MM_WPFS_Options::OPTION_TEST_ACCOUNT_ID => null,
			MM_WPFS_Options::OPTION_LIVE_ACCOUNT_ID => null,
			MM_WPFS_Options::OPTION_LIVE_ACCOUNT_STATUS => null,
			MM_WPFS_Options::OPTION_TEST_ACCOUNT_STATUS => null,
			MM_WPFS_Options::OPTION_CONNECT_MODE => 'prod',
			MM_WPFS_Options::OPTION_FEE_RECOVERY => '0',
			MM_WPFS_Options::OPTION_FEE_RECOVERY_OPT_IN => '1',
			MM_WPFS_Options::OPTION_FEE_RECOVERY_OPT_IN_MESSAGE => MM_WPFS_Utils::getDefaultFeeRecoveryMessage(),
			MM_WPFS_Options::OPTION_FEE_RECOVERY_CURRENCY => 'usd',
			MM_WPFS_Options::OPTION_FEE_RECOVERY_FEE_PERCENTAGE => '2.9',
			MM_WPFS_Options::OPTION_FEE_RECOVERY_FEE_ADDITIONAL_AMOUNT => '0.30',
		];

		$this->options->setNonExistentSeveral( $updateSet );

		$liveSecret = $this->options->get( MM_WPFS_Options::OPTION_API_LIVE_SECRET_KEY );

		$testSecret = $this->options->get( MM_WPFS_Options::OPTION_API_TEST_SECRET_KEY );

		$useLivePlatform = $liveSecret === 'YOUR_LIVE_SECRET_KEY';
		$useTestPlatform = $testSecret === 'YOUR_TEST_SECRET_KEY';

		$updateSet = [ 
			MM_WPFS_Options::OPTION_USE_WP_TEST_PLATFORM => $useTestPlatform ? '1' : '0',
			MM_WPFS_Options::OPTION_USE_WP_LIVE_PLATFORM => $useLivePlatform ? '1' : '0',
		];

		$this->options->setNonExistentSeveral( $updateSet );

		return $updateSet;
	}

	/**
	 * Generates a unique random token for authenticating webhook callbacks.
	 *
	 * @return string
	 */
	private function createWebhookToken() {
		$siteURL = get_site_url();
		$randomToken = hash( 'md5', rand() );
		$generatedPassword = substr( hash( 'sha512', rand() ), 0, 6 );

		return hash( 'md5', $siteURL . '|' . $randomToken . '|' . $generatedPassword );
	}

	public static function setup_db( $network_wide ) {
		if ( $network_wide ) {
			MM_WPFS_Utils::log( "setup_db() - Activating network-wide" );
			if ( function_exists( 'get_sites' ) && function_exists( 'get_current_network_id' ) ) {
				$site_ids = get_sites( [ 'fields' => 'ids', 'network_id' => get_current_network_id() ] );
			} else {
				$site_ids = MM_WPFS_Database::get_site_ids();
			}

			foreach ( $site_ids as $site_id ) {
				switch_to_blog( $site_id );
				self::setup_db_single_site();
				restore_current_blog();
			}
		} else {
			MM_WPFS_Utils::log( "setup_db() - Activating for single site" );
			self::setup_db_single_site();
		}
	}

	public static function setup_db_single_site() {
		MM_WPFS_Database::fullstripe_setup_db();
		MM_WPFS_Patcher::applyPatches();
	}

	function hooks() {

		add_filter( 'plugin_action_links', [ $this, 'plugin_action_links' ], 10, 2 );
		add_filter( MM_WPFS::FILTER_NAME_FORM_FIELD_CONFIGURATION, [ $this, 'loggedInEmailConfiguration' ], 5, 2 );
		add_filter( MM_WPFS::FILTER_NAME_FORM_FIELD_CONFIGURATION, [ $this, 'enableAllFormFields' ], 9, 2 );

		add_action( 'fullstripe_update_email_template_defaults', [ $this, 'updateEmailTemplateDefaults' ], 10, 0 );
		add_action( 'wp_head', [ $this, 'fullstripe_wp_head' ] );
		add_action( 'wp_enqueue_scripts', [ $this, 'fullstripe_enqueue_scripts_and_styles' ] );
		add_action( 'init', [ $this, 'init_user_version' ] );

		add_shortcode( self::SHORTCODE_FULLSTRIPE_FORM, [ $this, 'fullstripe_form' ] );

		add_filter( 'script_loader_tag', [ $this, 'addAsyncDeferAttributes' ], 10, 2 );

		MM_WPFS_TrackingActivationEndpoint::register();

		do_action( 'fullstripe_main_hooks_action' );
	}

	public function addAsyncDeferAttributes( $tag, $handle ) {
		if ( MM_WPFS::HANDLE_GOOGLE_RECAPTCHA_V_2 !== $handle ) {
			return $tag;
		}

		return str_replace( ' src', ' async defer src', $tag );
	}

	protected function isWpfsJsInclude( $handle ) {
		return in_array( $handle, $this->wpfsJsHandles );
	}

	public static function getInstance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new MM_WPFS();
		}

		return self::$instance;
	}

	public function updateEmailTemplateDefaults() {
		MM_WPFS_Mailer::updateDefaultEmailTemplatesInOptions( $this->options );
	}

	/**
	 * @param $context MM_WPFS_StaticContext
	 * @return float|int|string
	 */
	public static function getCustomFieldMaxCount( $context ) {
		$customInputFieldMaxCount = $context->getOptions()->get( MM_WPFS_Options::OPTION_CUSTOM_INPUT_FIELD_MAX_COUNT );
		if ( is_numeric( $customInputFieldMaxCount ) ) {
			return $customInputFieldMaxCount;
		}

		return self::DEFAULT_CUSTOM_INPUT_FIELD_MAX_COUNT;
	}

	public function plugin_action_links( $links, $file ) {
		static $currentPlugin;

		if ( ! $currentPlugin ) {
			$currentPlugin = plugin_basename( 'wp-full-stripe/wp-full-stripe.php' );
		}

		if ( $file == $currentPlugin ) {
			$settingsLabel =
				/* translators: Link label displayed on the Plugins page in WP admin */
				__( 'Settings', 'wp-full-stripe-free' );
			$settingsLink = '<a href="' . menu_page_url( MM_WPFS_Admin_Menu::SLUG_SETTINGS, false ) . '">' . esc_html( $settingsLabel ) . '</a>';
			array_unshift( $links, $settingsLink );
		}

		return $links;
	}

	public function enableAllFormFields( $config, $params ) {
		$result = $config;

		$setFormFieldsViaURlParameters = $this->options->get( MM_WPFS_Options::OPTION_SET_FORM_FIELDS_VIA_URL_PARAMETERS ) == '1';
		if ( $setFormFieldsViaURlParameters ) {
			foreach ( $result as $field => $config ) {
				WPFS_API_v2::setIsFormFieldConfigurable( $result, $field, true );
			}
		}

		return $result;
	}

	public function loggedInEmailConfiguration( $config, $params ) {
		$result = $config;

		$fillInEmail = $this->options->get( MM_WPFS_Options::OPTION_FILL_IN_EMAIL_FOR_LOGGED_IN_USERS ) == '1';
		if ( $fillInEmail && is_user_logged_in() ) {
			if ( empty( WPFS_API_v2::getFormFieldValue( $result, MM_WPFS_ConfigurableFormFields::FIELD_EMAIL ) ) ) {
				WPFS_API_v2::setIsFormFieldConfigurable( $result, MM_WPFS_ConfigurableFormFields::FIELD_EMAIL, true );
				WPFS_API_v2::setFormFieldValue( $result, MM_WPFS_ConfigurableFormFields::FIELD_EMAIL, wp_get_current_user()->user_email );
			}
		}

		return $result;
	}

	public function getFormFieldConfiguration( $urlParams, $formType, $formName ) {
		$result = MM_WPFS_ConfigurableFormFields::generateFieldConfiguration(
			MM_WPFS_ConfigurableFormFieldsFactory::createConfiguration( $formType )->getFields()
		);
		$result = MM_WPFS_ConfigurableFormFields::addUrlParamsToConfiguration( $result, $urlParams );

		try {
			$params = [ 
				'formType' => $formType,
				'formName' => $formName,
			];

			$result = apply_filters( MM_WPFS::FILTER_NAME_FORM_FIELD_CONFIGURATION, $result, $params );
		} catch (Exception $ex) {
			$this->logger->error( __FUNCTION__, "Cannot filter configurable form fields for form '{$formName}'", $ex );
		}

		return $result;
	}

	/**
	 * Generalized function to handle the new shortcode format
	 *
	 * @param $atts
	 *
	 * @return mixed|void
	 */
	function fullstripe_form( $atts ) {
		if ( ! MM_WPFS_Utils::isConnected() ) {
			$content = '';

			if ( current_user_can( 'administrator' ) ) {
				$content = sprintf(
					/* translators: %1$s: opening p tag, %2$s: opening link tag, %3$s: closing link tag, %4$s: closing p tag. */
					__( '%1$sYou are not connected to Stripe. Please connect to Stripe %2$sin the plugin settings%3$s.%4$s', 'wp-full-stripe-free' ),
					'<p>',
					'<a href="' . MM_WPFS_Admin_Menu::getAdminUrlBySlug( MM_WPFS_Admin_Menu::SLUG_SETTINGS_STRIPE ) . '">',
					'</a>',
					'</p>'
				);
			}

			return $content;
		}

		$content = '';
		ob_start();

		$this->logger->debug( __FUNCTION__, 'CALLED' );

		try {
			$formType = self::FORM_TYPE_INLINE_PAYMENT;
			$formName = 'default';
			if ( array_key_exists( 'type', $atts ) ) {
				$formType = $atts['type'];
			}
			if ( array_key_exists( 'name', $atts ) ) {
				$formName = $atts['name'];
			}
			$formType = str_replace( [ "\u{201c}", "\u{201d}" ], '', $formType );
			$formName = str_replace( [ "\u{201c}", "\u{201d}" ], '', $formName );
			$formType = MM_WPFS_Shortcode::normalizeShortCodeFormType( $formType );
			$form = $this->getFormByTypeAndName( $formType, $formName );

			if ( is_null( $form ) ) {
				throw new WPFS_UserFriendlyException( 'Form does not exist.' );
			}

			$fieldConfiguration = $this->getFormFieldConfiguration( $_GET, $formType, $formName );

			if ( ( self::FORM_TYPE_INLINE_PAYMENT === $formType ||
				self::FORM_TYPE_CHECKOUT_PAYMENT === $formType ) &&
				MM_WPFS::PAYMENT_TYPE_CUSTOM_AMOUNT == $form->customAmount ) {

				$customAmountParamValue = isset( $_GET[ self::HTTP_PARAM_NAME_AMOUNT ] ) ? sanitize_text_field( $_GET[ self::HTTP_PARAM_NAME_AMOUNT ] ) : null;

				if ( ! empty( $customAmountParamValue ) ) {
					$customAmount = apply_filters( self::FILTER_NAME_SET_CUSTOM_AMOUNT, 0, $formName, $customAmountParamValue );

					if ( $customAmount !== 0 ) {
						WPFS_API_v2::setFormFieldValue( $fieldConfiguration, MM_WPFS_ConfigurableFormFields::FIELD_AMOUNT, $customAmount );
					}
				}
			}

			if ( ! is_null( $form ) ) {
				$view = null;

				if ( self::FORM_TYPE_INLINE_PAYMENT === $formType ) {
					$view = new MM_WPFS_InlinePaymentFormView( $form, $fieldConfiguration, $this->stripe, $this->loggerService );
				} elseif ( self::FORM_TYPE_INLINE_SUBSCRIPTION === $formType ) {
					$view = new MM_WPFS_InlineSubscriptionFormView( $form, $fieldConfiguration, $this->stripe, $this->loggerService );
				} elseif ( self::FORM_TYPE_INLINE_SAVE_CARD === $formType ) {
					$view = new MM_WPFS_InlineSaveCardFormView( $form, $fieldConfiguration, $this->loggerService );
				} elseif ( self::FORM_TYPE_INLINE_DONATION === $formType ) {
					/** @noinspection PhpUnusedLocalVariableInspection */
					$view = new MM_WPFS_InlineDonationFormView( $form, $fieldConfiguration, $this->loggerService );
				} elseif ( self::FORM_TYPE_CHECKOUT_PAYMENT === $formType ) {
					/** @noinspection PhpUnusedLocalVariableInspection */
					$view = new MM_WPFS_CheckoutPaymentFormView( $form, $fieldConfiguration, $this->stripe, $this->loggerService );
				} elseif ( self::FORM_TYPE_CHECKOUT_SUBSCRIPTION === $formType ) {
					/** @noinspection PhpUnusedLocalVariableInspection */
					$view = new MM_WPFS_CheckoutSubscriptionFormView( $form, $fieldConfiguration, $this->stripe, $this->loggerService );
				} elseif ( self::FORM_TYPE_CHECKOUT_SAVE_CARD === $formType ) {
					/** @noinspection PhpUnusedLocalVariableInspection */
					$view = new MM_WPFS_CheckoutSaveCardFormView( $form, $fieldConfiguration, $this->loggerService );
				} elseif ( self::FORM_TYPE_CHECKOUT_DONATION === $formType ) {
					/** @noinspection PhpUnusedLocalVariableInspection */
					$view = new MM_WPFS_CheckoutDonationFormView( $form, $fieldConfiguration, $this->loggerService );
				}

				$selectedPlanId = null;
				if ( $view instanceof MM_WPFS_SubscriptionFormView ) {
					$isSimpleButtonSubscription = $view instanceof MM_WPFS_CheckoutSubscriptionFormView && 1 == $form->simpleButtonLayout;
					if ( ! $isSimpleButtonSubscription ) {
						$selectedPlanParamValue = isset( $_GET[ self::HTTP_PARAM_NAME_PLAN ] ) ? sanitize_text_field( $_GET[ self::HTTP_PARAM_NAME_PLAN ] ) : null;
						// $selectedPlanId is used in the view included below
						$selectedPlanId = apply_filters( self::FILTER_NAME_SELECT_SUBSCRIPTION_PLAN, null, $view->getFormName(), $view->getSelectedStripePlanIds(), $selectedPlanParamValue );
					}
				}

				if ( false === $this->loadScriptsAndStylesWithActionHook ) {
					$renderedForms = self::getRenderedForms()->renderLater( $formType );
					if ( $renderedForms->getTotal() == 1 ) {
						$this->fullstripe_load_css();
						$this->fullstripe_load_js();
						$this->fullstripe_set_common_js_variables();
					}
				}

				$popupFormSubmit = null;
				if ( isset( $_GET[ MM_WPFS_CheckoutSubmissionService::STRIPE_CALLBACK_PARAM_WPFS_POPUP_FORM_SUBMIT_HASH ] ) ) {
					$submitHash = $_GET[ MM_WPFS_CheckoutSubmissionService::STRIPE_CALLBACK_PARAM_WPFS_POPUP_FORM_SUBMIT_HASH ];
					/** @noinspection PhpUnusedLocalVariableInspection */
					$popupFormSubmit = $this->checkoutSubmissionService->retrieveSubmitEntry( $submitHash );

					$this->logger->debug( __FUNCTION__, 'popupFormSubmit=' . print_r( $popupFormSubmit, true ) );

					if ( isset( $popupFormSubmit ) && $popupFormSubmit->formHash === $view->getFormHash() ) {
						if (
							MM_WPFS_CheckoutSubmissionService::POPUP_FORM_SUBMIT_STATUS_CREATED === $popupFormSubmit->status
							|| MM_WPFS_CheckoutSubmissionService::POPUP_FORM_SUBMIT_STATUS_PENDING === $popupFormSubmit->status
							|| MM_WPFS_CheckoutSubmissionService::POPUP_FORM_SUBMIT_STATUS_COMPLETE === $popupFormSubmit->status
						) {
							// tnagy we do not render messages for created/complete submissions
							$popupFormSubmit = null;
						} else {
							// tnagy we set the form submission to complete, the last message will be shown when the shortcode renders
							$this->checkoutSubmissionService->updateSubmitEntryWithComplete( $popupFormSubmit );
						}
					}
				}

				/** @noinspection PhpIncludeInspection */
				include MM_WPFS_Assets::templates( 'forms/wpfs-form.php' );
			} else {
				include MM_WPFS_Assets::templates( 'forms/wpfs-form-not-found.php' );
			}

		} catch (Exception $ex) {
			$this->logger->error( __FUNCTION__, 'Error while rendering shortcode', $ex );

			include MM_WPFS_Assets::templates( 'forms/wpfs-form-error.php' );
		}

		$content = ob_get_clean();

		return apply_filters( 'fullstripe_form_output', $content );
	}

	/**
	 * Returns a form from database identified by type and name.
	 *
	 * @param $formType
	 * @param $formName
	 *
	 * @return mixed|null
	 */
	function getFormByTypeAndName( $formType, $formName ) {
		$form = null;

		if ( self::FORM_TYPE_INLINE_PAYMENT === $formType ) {
			$form = $this->database->getInlinePaymentFormByName( $formName );
		} elseif ( self::FORM_TYPE_INLINE_SUBSCRIPTION === $formType ) {
			$form = $this->database->getInlineSubscriptionFormByName( $formName );
		} elseif ( self::FORM_TYPE_INLINE_SAVE_CARD === $formType ) {
			$form = $this->database->getInlinePaymentFormByName( $formName );
		} elseif ( self::FORM_TYPE_INLINE_DONATION === $formType ) {
			$form = $this->database->getInlineDonationFormByName( $formName );
		} elseif ( self::FORM_TYPE_CHECKOUT_PAYMENT === $formType ) {
			$form = $this->database->getCheckoutPaymentFormByName( $formName );
		} elseif ( self::FORM_TYPE_CHECKOUT_SUBSCRIPTION === $formType ) {
			$form = $this->database->getCheckoutSubscriptionFormByName( $formName );
		} elseif ( self::FORM_TYPE_CHECKOUT_SAVE_CARD === $formType ) {
			$form = $this->database->getCheckoutPaymentFormByName( $formName );
		} elseif ( self::FORM_TYPE_CHECKOUT_DONATION === $formType ) {
			$form = $this->database->getCheckoutDonationFormByName( $formName );
		}

		return $form;
	}

	/**
	 * @return WPFS_RenderedFormData
	 */
	public static function getRenderedForms() {
		if ( ! array_key_exists( self::REQUEST_PARAM_NAME_WPFS_RENDERED_FORMS, $_REQUEST ) ) {
			$_REQUEST[ self::REQUEST_PARAM_NAME_WPFS_RENDERED_FORMS ] = new WPFS_RenderedFormData();
		}

		return $_REQUEST[ self::REQUEST_PARAM_NAME_WPFS_RENDERED_FORMS ];
	}

	/**
	 * Register and enqueue WPFS styles
	 */
	public function fullstripe_load_css() {
		if ( $this->includeDefaultStyles ) {

			wp_register_style( self::HANDLE_STYLE_WPFS_VARIABLES, MM_WPFS_Assets::css( 'wpfs-variables.css' ), null, MM_WPFS::VERSION );
			wp_register_style( self::HANDLE_STYLE_WPFS_FORMS, MM_WPFS_Assets::css( 'wpfs-forms.css' ), [ self::HANDLE_STYLE_WPFS_VARIABLES ], MM_WPFS::VERSION );

			wp_enqueue_style( self::HANDLE_STYLE_WPFS_FORMS );
		}

		do_action( 'fullstripe_load_css_action' );
	}

	/**
	 * Register and enqueue WPFS scripts
	 */
	public function fullstripe_load_js() {
		if ( ! MM_WPFS_Utils::isConnected() ) {
			return;
		}

		$source = add_query_arg(
			[
				'render' => 'explicit'
			],
			self::SOURCE_GOOGLE_RECAPTCHA_V2_API_JS
		);
		wp_register_script( self::HANDLE_GOOGLE_RECAPTCHA_V_2, $source, null, MM_WPFS::VERSION, true /* in footer */ );
		wp_register_script( self::HANDLE_SPRINTF_JS, MM_WPFS_Assets::scripts( 'sprintf.min.js' ), null, MM_WPFS::VERSION );
		wp_register_script( self::HANDLE_STRIPE_JS_V_3, 'https://js.stripe.com/v3/', [ 'jquery' ] );
		wp_register_script( self::HANDLE_WP_FULL_STRIPE_UTILS_JS, MM_WPFS_Assets::scripts( 'wpfs-utils.js' ), null, MM_WPFS::VERSION );

		wp_enqueue_script( self::HANDLE_SPRINTF_JS );
		wp_enqueue_script( self::HANDLE_STRIPE_JS_V_3 );
		wp_enqueue_script( self::HANDLE_WP_FULL_STRIPE_UTILS_JS );
		if (
			MM_WPFS_ReCaptcha::getSecureInlineForms( $this->staticContext )
			|| MM_WPFS_ReCaptcha::getSecureCheckoutForms( $this->staticContext )
		) {
			$dependencies = [
				'jquery',
				'jquery-ui-core',
				'jquery-ui-selectmenu',
				'jquery-ui-autocomplete',
				'jquery-ui-tooltip',
				'jquery-ui-spinner',
				self::HANDLE_SPRINTF_JS,
				self::HANDLE_WP_FULL_STRIPE_UTILS_JS,
				self::HANDLE_STRIPE_JS_V_3,
				self::HANDLE_GOOGLE_RECAPTCHA_V_2
			];
		} else {
			$dependencies = [
				'jquery',
				'jquery-ui-core',
				'jquery-ui-selectmenu',
				'jquery-ui-autocomplete',
				'jquery-ui-tooltip',
				'jquery-ui-spinner',
				self::HANDLE_SPRINTF_JS,
				self::HANDLE_WP_FULL_STRIPE_UTILS_JS,
				self::HANDLE_STRIPE_JS_V_3
			];
		}
		wp_enqueue_script( self::HANDLE_WP_FULL_STRIPE_JS, MM_WPFS_Assets::scripts( 'wpfs.js' ), $dependencies, MM_WPFS::VERSION );

		do_action( 'fullstripe_load_js_action' );
	}

	function fullstripe_set_common_js_variables() {
		$wpfsFormOptions = [
			self::JS_VARIABLE_AJAX_URL => admin_url( 'admin-ajax.php' ),
			self::JS_VARIABLE_GOOGLE_RECAPTCHA_SITE_KEY => MM_WPFS_ReCaptcha::getSiteKey( $this->staticContext ),
			self::JS_VARIABLE_FORM_FIELDS => [
				'inlinePayment' => MM_WPFS_InlinePaymentFormView::getFields(),
				'inlineSaveCard' => MM_WPFS_InlineSaveCardFormView::getFields(),
				'inlineSubscription' => MM_WPFS_InlineSubscriptionFormView::getFields(),
				'inlineDonation' => MM_WPFS_InlineDonationFormView::getFields(),
				'checkoutPayment' => MM_WPFS_CheckoutPaymentFormView::getFields(),
				'checkoutSaveCard' => MM_WPFS_CheckoutSaveCardFormView::getFields(),
				'checkoutSubscription' => MM_WPFS_CheckoutSubscriptionFormView::getFields(),
				'checkoutDonation' => MM_WPFS_CheckoutDonationFormView::getFields(),
			],
			self::JS_VARIABLE_L10N => [
				'validation_errors' => [
					'internal_error' =>
						/* translators: Banner message of internal error when no error message is returned by the application */
						__( 'An internal error occurred.', 'wp-full-stripe-free' ),
					'internal_error_title' =>
						/* translators: Banner title of internal error */
						__( 'Internal Error', 'wp-full-stripe-free' ),
					'mandatory_field_is_empty' =>
						/* translators: Error message for required fields when empty.
						 * p1: custom input field label
						 */
						__( "Please enter a value for '%s'", 'wp-full-stripe-free' ),
					'custom_payment_amount_value_is_invalid' =>
						/* translators: Field validation error message when payment amount is empty or invalid */
						__( 'Payment amount is invalid', 'wp-full-stripe-free' ),
					'invalid_payment_amount' =>
						/* translators: Banner message when the payment amount cannot be determined (the form has been tampered with) */
						__( 'Cannot determine payment amount', 'wp-full-stripe-free' ),
					'invalid_payment_amount_title' =>
						/* translators: Banner title when the payment amount cannot be determined (the form has been tampered with) */
						__( 'Invalid payment amount', 'wp-full-stripe-free' )
				],
				'stripe_errors' => [
					MM_WPFS_Stripe::INVALID_NUMBER_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_NUMBER_ERROR ),
					MM_WPFS_Stripe::INVALID_NUMBER_ERROR_EXP_MONTH => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_NUMBER_ERROR_EXP_MONTH ),
					MM_WPFS_Stripe::INVALID_NUMBER_ERROR_EXP_YEAR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_NUMBER_ERROR_EXP_YEAR ),
					MM_WPFS_Stripe::INVALID_EXPIRY_MONTH_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_EXPIRY_MONTH_ERROR ),
					MM_WPFS_Stripe::INVALID_EXPIRY_YEAR_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_EXPIRY_YEAR_ERROR ),
					MM_WPFS_Stripe::INVALID_CVC_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INVALID_CVC_ERROR ),
					MM_WPFS_Stripe::INCORRECT_NUMBER_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INCORRECT_NUMBER_ERROR ),
					MM_WPFS_Stripe::EXPIRED_CARD_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::EXPIRED_CARD_ERROR ),
					MM_WPFS_Stripe::INCORRECT_CVC_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INCORRECT_CVC_ERROR ),
					MM_WPFS_Stripe::INCORRECT_ZIP_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::INCORRECT_ZIP_ERROR ),
					MM_WPFS_Stripe::CARD_DECLINED_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::CARD_DECLINED_ERROR ),
					MM_WPFS_Stripe::MISSING_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::MISSING_ERROR ),
					MM_WPFS_Stripe::PROCESSING_ERROR => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::PROCESSING_ERROR ),
					MM_WPFS_Stripe::MISSING_PAYMENT_INFORMATION => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::MISSING_PAYMENT_INFORMATION ),
					MM_WPFS_Stripe::COULD_NOT_FIND_PAYMENT_INFORMATION => $this->stripe->resolveErrorMessageByCode( MM_WPFS_Stripe::COULD_NOT_FIND_PAYMENT_INFORMATION )
				],
				'subscription_charge_interval_templates' => [
					'daily' => __( 'Subscription will be charged every day.', 'wp-full-stripe-free' ),
					'weekly' => __( 'Subscription will be charged every week.', 'wp-full-stripe-free' ),
					'monthly' => __( 'Subscription will be charged every month.', 'wp-full-stripe-free' ),
					'yearly' => __( 'Subscription will be charged every year.', 'wp-full-stripe-free' ),
					/* translators: %d: interval count for days */
					'y_days' => __( 'Subscription will be charged every %d days.', 'wp-full-stripe-free' ),
					/* translators: %d: interval count for weeks */
					'y_weeks' => __( 'Subscription will be charged every %d weeks.', 'wp-full-stripe-free' ),
					/* translators: %d: interval count for months */
					'y_months' => __( 'Subscription will be charged every %d months.', 'wp-full-stripe-free' ),
					/* translators: %d: interval count for years */
					'y_years' => __( 'Subscription will be charged every %d years.', 'wp-full-stripe-free' ),
					/* translators: %d: number of occasions */
					'x_times_daily' => __( 'Subscription will be charged every day, for %d occasions.', 'wp-full-stripe-free' ),
					/* translators: %d: number of occasions */
					'x_times_weekly' => __( 'Subscription will be charged every week, for %d occasions.', 'wp-full-stripe-free' ),
					/* translators: %d: number of occasions */
					'x_times_monthly' => __( 'Subscription will be charged every month, for %d occasions.', 'wp-full-stripe-free' ),
					/* translators: %d: number of occasions */
					'x_times_yearly' => __( 'Subscription will be charged every year, for %d occasions.', 'wp-full-stripe-free' ),
					/* translators: %1$d: interval count for days, %2$d: occasions */
					'x_times_y_days' => __( 'Subscription will be charged every %1$d days, for %2$d occasions.', 'wp-full-stripe-free' ),
					/* translators: %1$d: interval count for weeks, %2$d: occasions */
					'x_times_y_weeks' => __( 'Subscription will be charged every %1$d weeks, for %2$d occasions.', 'wp-full-stripe-free' ),
					/* translators: %1$d: interval count for months, %2$d: occasions */
					'x_times_y_months' => __( 'Subscription will be charged every %1$d months, for %2$d occasions.', 'wp-full-stripe-free' ),
					/* translators: %1$d: interval count for years, %2$d: occasions */
					'x_times_y_years' => __( 'Subscription will be charged every %1$d years, for %2$d occasions.', 'wp-full-stripe-free' ),
				],
				'subscription_pricing_templates' => [
					/* translators: %1$s: formatted price amount */
					'daily' => __( '%1$s / day', 'wp-full-stripe-free' ),
					/* translators: %1$s: formatted price amount */
					'weekly' => __( '%1$s / week', 'wp-full-stripe-free' ),
					/* translators: %1$s: formatted price amount */
					'monthly' => __( '%1$s / month', 'wp-full-stripe-free' ),
					/* translators: %1$s: formatted price amount */
					'yearly' => __( '%1$s / year', 'wp-full-stripe-free' ),
					/* translators: %1$s: price, %2$d: interval count for days */
					'x_days' => __( '%1$s / %2$d days', 'wp-full-stripe-free' ),
					/* translators: %1$s: price, %2$d: interval count for weeks */
					'x_weeks' => __( '%1$s / %2$d weeks', 'wp-full-stripe-free' ),
					/* translators: %1$s: price, %2$d: interval count for months */
					'x_months' => __( '%1$s / %2$d months', 'wp-full-stripe-free' ),
					/* translators: %1$s: price, %2$d: interval count for years */
					'x_years' => __( '%1$s / %2$d years', 'wp-full-stripe-free' ),
				],
				'products' => [
					'default_product_name' => __( 'My product', 'wp-full-stripe-free' ),
					'other_amount_label' => __( 'Other amount', 'wp-full-stripe-free' ),
					'the_selected_product_label' => __( 'The selected product', 'wp-full-stripe-free' ),
				],
				'application_errors' => [
					/* translators: Banner title of application error when instantiating the Stripe object */
					'stripe_instantiation_error_title' => __( 'Stripe error', 'wp-full-stripe-free' ),
					/* translators: Error message when instantiating the Stripe object
					 * p1: the message of the exception thrown
					 */
					'stripe_instantiation_error_message' => __( "Cannot initialize Stripe: %s", 'wp-full-stripe-free' ),
					'not_connected_to_stripe' => __( 'You are not connected to Stripe. Please connect to Stripe in the plugin settings.', 'wp-full-stripe-free' ),
				],
				'product_pricing' => [
					/* translators: Default tax label */
					'default_tax_label' => __( 'Tax', 'wp-full-stripe-free' ),
					/* translators: Default label of coupon line items */
					'default_coupon_label' => __( 'Coupon', 'wp-full-stripe-free' ),
					/* translators: Tax line item label with percentage, inclusive */
					'tax_label_inclusive_percentage' => __( '%1$s (%2$s%%, inclusive)', 'wp-full-stripe-free' ),
					/* translators: Tax line item label with percentage */
					'tax_label_percentage' => __( '%1$s (%2$s%%)', 'wp-full-stripe-free' ),
					/* translators: Tax line item label, inclusive */
					'tax_label_inclusive' => __( '%s (inclusive)', 'wp-full-stripe-free' ),
					/* translators: Tax line item label, no decoration (no percentage, not inclusive) */
					'tax_label' => '%s',
				],
				'generic_error' => __( 'An error occurred. Please contact the website administrator.', 'wp-full-stripe-free' ),
			],
			'isAdmin' => current_user_can( 'administrator' ),
			'isConnected' => MM_WPFS_Utils::isConnected()
		];

		$apiMode = $this->options->get( MM_WPFS_Options::OPTION_API_MODE );
		$isTestMode = $apiMode === MM_WPFS::STRIPE_API_MODE_TEST;
		$isTestPlatform = $this->options->get( MM_WPFS_Options::OPTION_USE_WP_TEST_PLATFORM );
		$isLivePlatform = $this->options->get( MM_WPFS_Options::OPTION_USE_WP_LIVE_PLATFORM );

		$wpfsFormOptions[ self::JS_VARIABLE_STRIPE_ACCOUNT_ID ] = $isTestMode
			? $this->options->get( MM_WPFS_Options::OPTION_TEST_ACCOUNT_ID )
			: $this->options->get( MM_WPFS_Options::OPTION_LIVE_ACCOUNT_ID );

		if ( $apiMode === self::STRIPE_API_MODE_TEST && $isTestPlatform ) {
			$wpfsFormOptions[ self::JS_VARIABLE_STRIPE_KEY ] = MM_WPFS_Options::OPTION_TEST_STRIPE_PLATFORM_PK;
		} elseif ( $apiMode === self::STRIPE_API_MODE_LIVE && $isLivePlatform ) {
			$wpfsFormOptions[ self::JS_VARIABLE_STRIPE_KEY ] = MM_WPFS_Options::OPTION_LIVE_STRIPE_PLATFORM_PK;
		} else {
			$wpfsFormOptions[ self::JS_VARIABLE_STRIPE_KEY ] = $isTestMode
				? $this->options->get( MM_WPFS_Options::OPTION_API_TEST_PUBLISHABLE_KEY )
				: $this->options->get( MM_WPFS_Options::OPTION_API_LIVE_PUBLISHABLE_KEY );
		}

		wp_localize_script( self::HANDLE_WP_FULL_STRIPE_JS, self::JS_VARIABLE_WPFS_FORM_OPTIONS, $wpfsFormOptions );
	}

	function fullstripe_wp_head() {
		echo '<style type="text/css" media="screen">' . $this->options->get( MM_WPFS_Options::OPTION_FORM_CUSTOM_CSS ) . '</style>';
	}

	/**
	 * Register and enqueue styles and scripts to load for this addon
	 */
	public function fullstripe_enqueue_scripts_and_styles() {
		if ( $this->loadScriptsAndStylesWithActionHook ) {
			global $wp;

			$this->logger->debug( __FUNCTION__, 'CALLED, wp=' . print_r( $wp, true ) );

			if ( ! is_null( $wp ) && isset( $wp->request ) ) {
				$pageByPath = get_page_by_path( $wp->request );
				if ( ! is_null( $pageByPath ) && isset( $pageByPath->post_content ) ) {
					if (
						has_shortcode( $pageByPath->post_content, self::SHORTCODE_FULLSTRIPE_FORM )
					) {
						$this->fullstripe_load_css();
						$this->fullstripe_load_js();
						$this->fullstripe_set_common_js_variables();
					}
				}
			}
		}
	}

	/**
	 * Initialize the user version of the plugin.
	 */
	public function init_user_version() {
		if ( false !== get_option( 'wpfp_user_v1' ) ) {
			return;
		}

		$stripe_connected = $this->options->getSeveral( [ 
			MM_WPFS_Options::OPTION_LIVE_ACCOUNT_ID,
			MM_WPFS_Options::OPTION_TEST_ACCOUNT_ID
		] );

		if ( ! empty( array_filter( $stripe_connected ) ) ) {
			update_option( 'wpfp_user_v1', 'yes' );
		} else {
			update_option( 'wpfp_user_v1', 'no' );
		}
	}

	/**
	 * Get API version based on wpfp_user_v1 option
	 * 
	 * @return string
	 */
	public static function get_user_version() {
		$version = get_option( 'wpfp_user_v1', 'no' );
		return 'yes' === $version ? 'v1' : 'v2';
	}

	private function retrieveProductIdsByPriceIds( $priceIds ) {
		try {

			$productIds = $this->stripe->retrieveProductIdsByPriceIds( $priceIds );

			return $productIds;
		} catch (Exception $ex) {
			$this->logger->error( __FUNCTION__, "Cannot retrieve products by price ids", $ex );

			return [];
		}
	}

	/**
	 * @param $priceIds
	 * @param $couponProducts
	 * @return bool
	 */
	private function doPricesIntersectWithCouponProducts( $priceIds, $couponProducts ): bool {
		$result = false;

		$productIds = $this->retrieveProductIdsByPriceIds( $priceIds );
		$intersect = array_intersect( $couponProducts, $productIds );

		if ( count( $intersect ) === 0 ) {
			$result = false;
		} else {
			$result = true;
		}

		return $result;
	}

	/**
	 * @param $form
	 * @return array
	 */
	private function getProductsByForm( $form ): array {
		$result = [];

		if ( isset( $form->decoratedProducts ) ) {
			$result = MM_WPFS_Utils::decodeJsonArray( $form->decoratedProducts );
		} elseif ( isset( $form->decoratedPlans ) ) {
			$result = MM_WPFS_Utils::decodeJsonArray( $form->decoratedPlans );
		}
		return $result;
	}

	/**
	 * @param $formType
	 * @param $formId
	 * @return array
	 */
	public function getProductsByFormTypeAndId( $formType, $formId ): array {
		$form = $this->getFormByTypeAndName( $formType, $formId );

		return $this->getProductsByForm( $form );
	}

	/**
	 * @param $coupon
	 * @param $formType
	 * @param $formId
	 * @return \StdClass
	 */
	public function isCouponApplicableToForm( $coupon, $formType, $formId, $currentPriceId ): \StdClass {
		$result = new \StdClass;
		$result->applicableToForm = true;
		$result->applicableToProduct = true;

		if ( isset( $coupon->applies_to ) && isset( $coupon->applies_to->products ) ) {
			$savedProducts = $this->getProductsByFormTypeAndId( $formType, $formId );

			if ( isset( $savedProducts ) && ! empty( $savedProducts ) ) {
				$priceIds = MM_WPFS_Pricing::extractPriceIdsFromProductsStatic( $savedProducts );

				if ( isset( $priceIds ) && ! empty( $priceIds ) ) {
					$result->applicableToForm = $this->doPricesIntersectWithCouponProducts( $priceIds, $coupon->applies_to->products );

					if ( $result->applicableToForm ) {
						$result->applicableToProduct = $this->doPricesIntersectWithCouponProducts( [ $currentPriceId ], $coupon->applies_to->products );
					} else {
						$result->applicableToProduct = false;
					}
				}
			}
		}

		return $result;
	}

	private function retrievePriceIdsProductIdsAssociativeArray( $priceIds ) {
		$result = [];

		foreach ( $priceIds as $priceId ) {
			try {
				$price = $this->stripe->retrievePriceWithProductExpanded( $priceId );
				$result[ $priceId ] = $price->product->id;
			} catch (Exception $ex) {
				$this->logger->error( __FUNCTION__, "Cannot retrieve price", $ex );
			}
		}

		return $result;
	}

	public function getDiscountedPriceIdsByCouponAndForm( $coupon, $formType, $formId ) {
		$result = [];

		$formProducts = $this->getProductsByFormTypeAndId( $formType, $formId );
		$priceIds = MM_WPFS_Pricing::extractPriceIdsFromProductsStatic( $formProducts );

		if ( isset( $coupon->applies_to ) && isset( $coupon->applies_to->products ) ) {
			$pricesProducts = $this->retrievePriceIdsProductIdsAssociativeArray( $priceIds );
			$discountedPrices = array_intersect( $pricesProducts, $coupon->applies_to->products );

			$result = array_keys( $discountedPrices );
		} else {
			$result = $priceIds;
		}

		return $result;
	}


	/**
	 * @return MM_WPFS_Admin_Menu
	 */
	public function getAdminMenu() {
		return $this->adminMenu;
	}

	/**
	 * @return MM_WPFS_Admin
	 */
	public function getAdmin() {
		return $this->admin;
	}
}

class WPFS_RenderedFormData {

	private $inlinePayments = 0;
	private $inlineSubscriptions = 0;
	private $checkoutPayments = 0;
	private $checkoutSubscriptions = 0;
	private $inlineDonations = 0;
	private $checkoutDonations = 0;

	public function renderLater( $type ) {
		if ( MM_WPFS::FORM_TYPE_CHECKOUT_SUBSCRIPTION === $type ) {
			$this->checkoutSubscriptions += 1;
		} elseif ( MM_WPFS::FORM_TYPE_INLINE_SUBSCRIPTION === $type ) {
			$this->inlineSubscriptions += 1;
		} elseif ( MM_WPFS::FORM_TYPE_CHECKOUT_PAYMENT === $type ) {
			$this->checkoutPayments += 1;
		} elseif ( MM_WPFS::FORM_TYPE_INLINE_PAYMENT === $type ) {
			$this->inlinePayments += 1;
		} elseif ( MM_WPFS::FORM_TYPE_CHECKOUT_SAVE_CARD === $type ) {
			$this->checkoutPayments += 1;
		} elseif ( MM_WPFS::FORM_TYPE_INLINE_SAVE_CARD === $type ) {
			$this->inlinePayments += 1;
		} elseif ( MM_WPFS::FORM_TYPE_CHECKOUT_DONATION === $type ) {
			$this->checkoutDonations += 1;
		} elseif ( MM_WPFS::FORM_TYPE_INLINE_DONATION === $type ) {
			$this->inlineDonations += 1;
		}

		return $this;
	}

	/**
	 * @return int
	 */
	public function getInlinePayments() {
		return $this->inlinePayments;
	}

	/**
	 * @return int
	 */
	public function getInlineSubscriptions() {
		return $this->inlineSubscriptions;
	}

	/**
	 * @return int
	 */
	public function getCheckoutPayments() {
		return $this->checkoutPayments;
	}

	/**
	 * @return int
	 */
	public function getCheckoutSubscriptions() {
		return $this->checkoutSubscriptions;
	}

	/**
	 * @return int
	 */
	public function getInlineDonations() {
		return $this->inlineDonations;
	}

	/**
	 * @return int
	 */
	public function getCheckoutDonations() {
		return $this->checkoutDonations;
	}

	/**
	 * @return int
	 */
	public function getTotal() {
		return $this->inlinePayments + $this->inlineSubscriptions + $this->checkoutPayments + $this->checkoutSubscriptions + $this->inlineDonations + $this->checkoutDonations;
	}

}

/**
 * Class WPFS_UserFriendlyException
 *
 * This exception can be thrown in action and event hooks, and it's content (title, message)
 * will be displayed as a global message above the form which has invoked it.
 */
class WPFS_UserFriendlyException extends Exception {
	protected $_title;

	/**
	 * WPFS_UserFriendlyException constructor.
	 * @param string $message
	 * @param int $code
	 * @param Throwable|null $previous
	 */
	public function __construct( $message = "", $code = 0, Throwable $previous = null ) {
		parent::__construct( $message, $code, $previous );
	}

	/**
	 * @return mixed
	 */
	public function getTitle() {
		return $this->_title;
	}

	/**
	 * @param mixed $title
	 */
	public function setTitle( $title ) {
		$this->_title = $title;
	}
}

MM_WPFS::getInstance();
