/**
	 * Returns the home URL.
	 *
	 * @since 4.7.3
	 *
	 * @param  bool   $unfiltered Whether to get the unfiltered value.
	 * @return string             The home URL.
	 */
	private function getHomeUrl( $unfiltered = false ) {
		$homeUrl = home_url();
		if ( $unfiltered ) {
			// We want to get this value straight from the DB to prevent plugins like WPML from filtering it.
			// This will otherwise mess with things like license activation requests and redirects.
			$homeUrl = get_option( 'home' );
		}

		return $homeUrl;
	}

	/**
	 * Checks if the given URL is an internal URL for the current site.
	 *
	 * @since 4.2.6
	 *
	 * @param  string $urlToCheck The URL to check.
	 * @return bool               Whether the given URL is an internal one.
	 */
	public function isInternalUrl( $urlToCheck ) {
		$parsedHomeUrl    = wp_parse_url( home_url() );
		$parsedUrlToCheck = wp_parse_url( $urlToCheck );

		return ! empty( $parsedHomeUrl['host'] ) && ! empty( $parsedUrlToCheck['host'] )
			? $parsedHomeUrl['host'] === $parsedUrlToCheck['host']
			: false;
	}

	/**
	 * Helper for the rest url.
	 *
	 * @since 4.4.9
	 *
	 * @return string
	 */
	public function getRestUrl() {
		$restUrl = get_rest_url();

		if ( aioseo()->helpers->isWpmlActive() ) {
			global $sitepress;

			// Replace the rest url 'all' language prefix so our rest calls don't fail.
			if (
				is_object( $sitepress ) &&
				method_exists( $sitepress, 'get_current_language' ) &&
				method_exists( $sitepress, 'get_default_language' ) &&
				'all' === $sitepress->get_current_language()
			) {
				$restUrl = str_replace(
					get_home_url( null, '/all/' ),
					get_home_url( null, '/' . $sitepress->get_default_language() . '/' ),
					$restUrl
				);
			}
		}

		return $restUrl;
	}

	/**
	 * Exclude the home path from a full path.
	 *
	 * @since   1.2.3 Moved from aioseo-redirects.
	 * @version 4.5.8
	 *
	 * @param  string $path The original path.
	 * @return string       The path without WP's home path.
	 */
	public function excludeHomePath( $path ) {
		return preg_replace( '@^' . $this->getHomePath() . '@', '/', $path );
	}

	/**
	 * Get the canonical URL for a post.
	 * This is a duplicate of wp_get_canonical_url() with a fix for issue #6372 where
	 * posts with paginated comment pages return the wrong canonical URL due to how WordPress sets the cpage var.
	 * We can remove this once trac ticket 60806 is resolved.
	 *
	 * @since 4.6.9
	 *
	 * @param  \WP_Post|int|null $post The post object or ID.
	 * @return string|false            The post's canonical URL, or false if the post is not published.
	 */
	public function wpGetCanonicalUrl( $post = null ) {
		$post = get_post( $post );

		if ( ! $post ) {
			return false;
		}

		if ( 'publish' !== $post->post_status ) {
			return false;
		}

		$canonical_url = get_permalink( $post );

		// If a canonical is being generated for the current page, make sure it has pagination if needed.
		if ( get_queried_object_id() === $post->ID ) {
			$page = get_query_var( 'page', 0 );
			if ( $page >= 2 ) {
				if ( ! get_option( 'permalink_structure' ) ) {
					$canonical_url = add_query_arg( 'page', $page, $canonical_url );
				} else {
					$canonical_url = trailingslashit( $canonical_url ) . user_trailingslashit( $page, 'single_paged' );
				}
			}

			$cpage = aioseo()->helpers->getCommentPageNumber(); // We're calling our own function here to get the correct cpage number.
			if ( $cpage ) {
				$canonical_url = get_comments_pagenum_link( $cpage );
			}
		}

		return apply_filters( 'get_canonical_url', $canonical_url, $post );
	}
}