<?php


class OnecomSpApiCheck extends OnecomSp {


	public $is_spam     = '';
	const ACCESS_DENIED = 'Access Denied';
	const PARA_START    = "<p style='text-align: center'>";
	const PARA_CLOSED   = '</p>';
	const SPAM_DETECTED = 'Spam Detected!';

	public function __construct() {

		parent::__construct();
		add_action( 'init', array( $this, 'oc_form_submission_check' ) );
		add_action( 'pre_comment_approved', array( $this, 'oc_comment_filter' ), 1, 2 );
		add_filter( 'pre_user_login', array( $this, 'oc_check_user_registration' ), 1, 1 );
	}

	public function oc_check_user_registration( $user_login ) {

		if ( '' != $this->is_spam && false !== $this->is_spam ) {

			unset( $this->is_spam );
			wp_die(
				self::PARA_START . __( self::SPAM_DETECTED, 'onecom-sp' ) . self::PARA_CLOSED,
				__( self::ACCESS_DENIED, 'onecom-sp' ),
				array( 'response' => 403 )
			);

		} else {
			return $user_login;
		}
	}

	public function oc_form_submission_check() {

		if ( function_exists( 'is_user_logged_in' ) && is_user_logged_in() ) {
			remove_filter( 'pre_user_login', 'oc_check_user_registration', 1 );
			if ( current_user_can( 'edit_posts' ) ) {
				return false;
			}
		}

		$oc_post = oc_sp_post_values();

		if ( ! empty( $oc_post['email'] ) || ! empty( $oc_post['author'] )
			|| ! empty( $oc_post['comment'] )
		) {

			$ip         = $this->get_user_ip();
			$user_email = $oc_post['email'];
			$user_agent = $this->oc_get_user_agent();

			//username check disabled for all
			$user_name = '';

			$current_uri = $_SERVER['REQUEST_URI'];

			$oc_check = $this->sp_api_check( $ip, $user_email, $user_agent, $user_name );

			if ( false !== $oc_check['is_spam'] ) {
				if ( str_contains( $oc_check['reason'], 'useragent' ) ) {
					$oc_check['reason'] = $oc_check['reason'] . '</br> useragent string: ' . $user_agent;
				}

				oc_log_spam( $ip, $oc_post, $oc_check['reason'] );
				$this->is_spam = true;
				if ( strpos( $current_uri, 'wp-login.php' ) === false && strpos( $current_uri, 'wp-comments-post.php' ) === false ) {

					wp_die(
						self::PARA_START . __( self::SPAM_DETECTED, 'onecom-sp' ) . self::PARA_CLOSED,
						__( self::ACCESS_DENIED, 'onecom-sp' ),
						array( 'response' => 403 )
					);
				}
			} elseif ( false === $oc_check['is_spam'] ) {

				$this->is_spam = $this->oc_website_checks();
				if ( false !== $this->is_spam && false === strpos( $current_uri, 'wp-login.php' ) && false === strpos( $current_uri, 'wp-comments-post.php' ) ) {

					wp_die(
						self::PARA_START . __( self::SPAM_DETECTED, 'onecom-sp' ) . self::PARA_CLOSED,
						__( self::ACCESS_DENIED, 'onecom-sp' ),
						array( 'response' => 403 )
					);
				}
			} else {

				return false;
			}
		}
	}

	public function oc_comment_filter( $approved, $comment ) {

		if ( '' != $this->is_spam && false !== $this->is_spam ) {

			unset( $this->is_spam );

			return 'spam';

		}

		return $approved;
	}

	public function oc_website_checks() {
		$user_ip    = $this->get_user_ip();
		$logs       = json_decode( get_option( 'onecom_sp_spam_logs' ), true );
		$sp_options = json_decode( get_option( 'onecom_sp_protect_options' ), true );
		$oc_post    = oc_sp_post_values();
		$init_check = new OnecomSpWebsiteCheck();

		$response = $init_check->execute( $user_ip, $logs, $sp_options, $oc_post );

		return $response;
	}
}