public function settings_init() {
		add_settings_section( 'woocommerce-permalink', __( 'Product permalinks', 'woocommerce' ), array( $this, 'settings' ), 'permalink' );

		add_settings_field(
			'woocommerce_product_category_slug',
			__( 'Product category base', 'woocommerce' ),
			array( $this, 'product_category_slug_input' ),
			'permalink',
			'optional'
		);
		add_settings_field(
			'woocommerce_product_tag_slug',
			__( 'Product tag base', 'woocommerce' ),
			array( $this, 'product_tag_slug_input' ),
			'permalink',
			'optional'
		);
		add_settings_field(
			'woocommerce_product_attribute_slug',
			__( 'Product attribute base', 'woocommerce' ),
			array( $this, 'product_attribute_slug_input' ),
			'permalink',
			'optional'
		);

		$this->permalinks = wc_get_permalink_structure();
	}