public function download_database( $license_key ) {
		$download_uri = add_query_arg(
			array(
				'edition_id'  => self::DATABASE,
				'license_key' => urlencode( wc_clean( $license_key ) ),
				'suffix'      => 'tar.gz',
			),
			'https://download.maxmind.com/app/geoip_download'
		);

		// Needed for the download_url call right below.
		require_once ABSPATH . 'wp-admin/includes/file.php';

		$tmp_archive_path = download_url( esc_url_raw( $download_uri ) );
		if ( is_wp_error( $tmp_archive_path ) ) {
			// Transform the error into something more informative.
			$error_data = $tmp_archive_path->get_error_data();
			if ( isset( $error_data['code'] ) ) {
				switch ( $error_data['code'] ) {
					case 401:
						return new WP_Error(
							'woocommerce_maxmind_geolocation_database_license_key',
							__( 'The MaxMind license key is invalid. If you have recently created this key, you may need to wait for it to become active.', 'woocommerce' )
						);
				}
			}

			return new WP_Error( 'woocommerce_maxmind_geolocation_database_download', __( 'Failed to download the MaxMind database.', 'woocommerce' ) );
		}

		// Extract the database from the archive.
		try {
			$file = new PharData( $tmp_archive_path );

			$tmp_database_path = trailingslashit( dirname( $tmp_archive_path ) ) . trailingslashit( $file->current()->getFilename() ) . self::DATABASE . self::DATABASE_EXTENSION;

			$file->extractTo(
				dirname( $tmp_archive_path ),
				trailingslashit( $file->current()->getFilename() ) . self::DATABASE . self::DATABASE_EXTENSION,
				true
			);
		} catch ( Exception $exception ) {
			return new WP_Error( 'woocommerce_maxmind_geolocation_database_archive', $exception->getMessage() );
		} finally {
			// Remove the archive since we only care about a single file in it.
			unlink( $tmp_archive_path );
		}

		return $tmp_database_path;
	}