<?php
declare( strict_types=1 );

namespace Automattic\WooCommerce\Internal\Admin\Settings\PaymentsProviders;

use Automattic\WooCommerce\Internal\Logging\SafeGlobalFunctionProxy;
use Throwable;
use WC_Payment_Gateway;

defined( 'ABSPATH' ) || exit;

/**
 * Paymob payment gateway provider class.
 *
 * This class handles all the custom logic for the Paymob payment gateway provider.
 */
class Paymob extends PaymentGateway {

	/**
	 * Check if the payment gateway needs setup.
	 *
	 * Note: We are overriding the parent method to avoid infinite recursion with the is_account_connected method.
	 *
	 * @param WC_Payment_Gateway $payment_gateway The payment gateway object.
	 *
	 * @return bool True if the payment gateway needs setup, false otherwise.
	 */
	public function needs_setup( WC_Payment_Gateway $payment_gateway ): bool {
		$needs_setup = wc_string_to_bool( $payment_gateway->needs_setup() );
		// If we get a true value, it means the gateway needs setup.
		if ( $needs_setup ) {
			return true;
		}

		// If we reach here, just assume that the gateway does not need setup.
		return false;
	}

	/**
	 * Try to determine if the payment gateway is in test mode.
	 *
	 * This is a best-effort attempt, as there is no standard way to determine this.
	 * Trust the true value, but don't consider a false value as definitive.
	 *
	 * @param WC_Payment_Gateway $payment_gateway The payment gateway object.
	 *
	 * @return bool True if the payment gateway is in test mode, false otherwise.
	 */
	public function is_in_test_mode( WC_Payment_Gateway $payment_gateway ): bool {
		return $this->is_paymob_in_sandbox_mode( $payment_gateway ) ?? parent::is_in_test_mode( $payment_gateway );
	}

	/**
	 * Check if the payment gateway has a payments processor account connected.
	 *
	 * @param WC_Payment_Gateway $payment_gateway The payment gateway object.
	 *
	 * @return bool True if the payment gateway account is connected, false otherwise.
	 *              If the payment gateway does not provide the information, it will return true.
	 */
	public function is_account_connected( WC_Payment_Gateway $payment_gateway ): bool {
		// The Paymob gateway ties needs_setup only to the API keys, so if they are set, we consider the account connected.
		return ! $this->needs_setup( $payment_gateway );
	}

	/**
	 * Try to determine if the payment gateway is in test mode onboarding (aka sandbox or test-drive).
	 *
	 * This is a best-effort attempt, as there is no standard way to determine this.
	 * Trust the true value, but don't consider a false value as definitive.
	 *
	 * @param WC_Payment_Gateway $payment_gateway The payment gateway object.
	 *
	 * @return bool True if the payment gateway is in test mode onboarding, false otherwise.
	 */
	public function is_in_test_mode_onboarding( WC_Payment_Gateway $payment_gateway ): bool {
		return $this->is_paymob_in_sandbox_mode( $payment_gateway ) ?? parent::is_in_test_mode_onboarding( $payment_gateway );
	}

	/**
	 * Check if the Paymob payment gateway is in sandbox mode.
	 *
	 * @param WC_Payment_Gateway $payment_gateway The payment gateway object.
	 *
	 * @return ?bool True if the payment gateway is in sandbox mode, false otherwise.
	 *               Null if the environment could not be determined.
	 */
	private function is_paymob_in_sandbox_mode( WC_Payment_Gateway $payment_gateway ): ?bool {
		try {
			// Unfortunately, Paymob does not provide a standard way to determine if the gateway is in sandbox mode.
			$options = get_option( 'woocommerce_paymob-main_settings', array() );
			return 'test' === ( $options['mode'] ?? 'test' );
		} catch ( \Throwable $e ) {
			// Do nothing but log so we can investigate.
			SafeGlobalFunctionProxy::wc_get_logger()->debug(
				'Failed to determine if gateway is in sandbox mode: ' . $e->getMessage(),
				array(
					'gateway'   => $payment_gateway->id,
					'source'    => 'settings-payments',
					'exception' => $e,
				)
			);
		}

		// Let the caller know that we couldn't determine the environment.
		return null;
	}
}