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<?php
/**
 * Flutterwave WooCommerce plugin main class
 *
 * @package Flutterwave
 */

declare(strict_types=1);

defined( 'ABSPATH' ) || exit;

/**
 * Main Class
 */
final class Flutterwave {
	/**
	 * Plugin version.
	 *
	 * @var string
	 */
	public string $version = '2.3.5';

/**
	 * Plugin API version.
	 *
	 * @var string
	 */
	public string $api_version = 'v3';
	/**
	 * Plugin instance.
	 *
	 * @var Flutterwave|null
	 */
	protected static ?Flutterwave $instance = null;

/**
	 * Main Instance.
	 */
	public static function instance(): Flutterwave {
		self::$instance = is_null( self::$instance ) ? new self() : self::$instance;

return self::$instance;
	}

/**
	 * Flutterwave Constructor.
	 */
	public function __construct() {
		$this->define_constants();
		$this->load_plugin_textdomain();
		$this->includes();
		$this->init();
	}

/**
	 * Define constant if not already set.
	 *
	 * @param string      $name  Constant name.
	 * @param string|bool $value Constant value.
	 */
	private function define( string $name, $value ) {
		if ( ! defined( $name ) ) {
			define( $name, $value );
		}
	}

/**
	 * Define Flutterwave Constants.
	 */
	private function define_constants() {
		$this->define( 'FLUTTERWAVEACCESS', 1 );
		$this->define( 'FLW_WC_PLUGIN_URL', plugin_dir_url( FLW_WC_PLUGIN_FILE ) );
		$this->define( 'FLW_WC_PLUGIN_BASENAME', plugin_basename( FLW_WC_PLUGIN_FILE ) );
		$this->define( 'FLW_WC_PLUGIN_DIR', plugin_dir_path( FLW_WC_PLUGIN_FILE ) );
		$this->define( 'FLW_WC_DIR_PATH', plugin_dir_path( FLW_WC_PLUGIN_FILE ) );
		$this->define( 'FLW_WC_VERSION', $this->version );
		$this->define( 'FLW_WC_MIN_WC_VER', '6.9.1' );
		$this->define( 'FLW_WC_URL', trailingslashit( plugins_url( '/', FLW_WC_PLUGIN_FILE ) ) );
		$this->define( 'FLW_WC_EPSILON', 0.01 );
	}

/**
	 * Load plugin textdomain.
	 *
	 * @since 2.3.2
	 */
	public function load_plugin_textdomain() {
		$locale = determine_locale();

load_plugin_textdomain( 'rave-woocommerce-payment-gateway', false, dirname( FLW_WC_PLUGIN_BASENAME ) . '/i18n/languages' );
	}

/**
	 * Initialize the plugin.
	 * Checks for an existing instance of this class in the global scope and if it doesn't find one, creates it.
	 *
	 * @return void
	 */
	private function init() {
		$notices = new FLW_WC_Payment_Gateway_Notices();

// Check if WooCommerce is active.
		if ( ! class_exists( 'WooCommerce' ) ) {

add_action( 'admin_notices', array( $notices, 'woocommerce_not_installed' ) );
			return;
		}

if ( ! class_exists( 'WC_Payment_Gateway' ) ) {
			return;
		}

if ( version_compare( WC_VERSION, FLW_WC_MIN_WC_VER, '<' ) ) {
			add_action( 'admin_notices', array( $notices, 'woocommerce_wc_not_supported' ) );
			return;
		}

register_activation_hook( __FILE__, array( $this, 'activate' ) );
		register_deactivation_hook( __FILE__, array( $this, 'deactivate' ) );

$this->register_payment_gateway();

}

/**
	 * Cloning is forbidden.
	 *
	 * @since 2.3.2
	 */
	public function __clone() {}

/**
	 * Unserializing instances of this class is forbidden.
	 *
	 * @since 2.3.2
	 */
	public function __wakeup() {}

/**
	 * Include required core files used in admin and on the frontend.
	 */
	public function includes() {
		// Include classes that can run on WP Freely.
		include_once dirname( FLW_WC_PLUGIN_FILE ) . '/includes/notices/class-flw-wc-payment-gateway-notices.php';
	}

/**
	 * This handles actions on plugin activation.
	 *
	 * @return void
	 */
	public static function activate() {
		if ( ! class_exists( 'WooCommerce' ) ) {
			$notices = new FLW_WC_Payment_Gateway_Notices();
			add_action( 'admin_notices', array( $notices, 'woocommerce_not_installed' ) );
		}
	}

/**
	 * This handles actions on plugin deactivation.
	 *
	 * @return void
	 */
	public static function deactivate() {
		// Deactivation logic.
	}

/**
	 * Register Flutterwave as a Payment Gateway.
	 *
	 * @return void
	 */
	public function register_payment_gateway() {
		require_once dirname( FLW_WC_PLUGIN_FILE ) . '/includes/class-flw-wc-payment-gateway.php';
		if ( class_exists( 'WC_Subscriptions_Order' ) && class_exists( 'WC_Payment_Gateway_CC' ) ) {
			require_once FLW_WC_DIR_PATH . 'includes/class-flw-wc-payment-gateway-subscriptions.php';

}

add_filter( 'woocommerce_payment_gateways', array( 'Flutterwave', 'add_gateway_to_woocommerce_gateway_list' ), 99 );
	}

/**
	 * Add the Gateway to WooCommerce
	 *
	 * @param  array $methods Existing gateways in WooCommerce.
	 *
	 * @return array Gateway list with our gateway added
	 */
	public static function add_gateway_to_woocommerce_gateway_list( array $methods ): array {

if ( class_exists( 'WC_Subscriptions_Order' ) && class_exists( 'WC_Payment_Gateway_CC' ) ) {

$methods[] = 'FLW_WC_Payment_Gateway_Subscriptions';

} else {

$methods[] = 'FLW_WC_Payment_Gateway';
		}

return $methods;
	}

/**
	 * Add the Settings link to the plugin
	 *
	 * @param  array $links Existing links on the plugin page.
	 *
	 * @return array Existing links with our settings link added
	 */
	public static function plugin_action_links( array $links ): array {

$rave_settings_url = esc_url( get_admin_url( null, 'admin.php?page=wc-settings&tab=checkout&section=rave' ) );
		array_unshift( $links, "<a title='Flutterwave Settings Page' href='$rave_settings_url'>Settings</a>" );

return $links;

}
}