/* Copyright (c) 2015-present, salesforce.com, inc. All rights reserved */
/* Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license */

import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import Button from '../../button';

export const DISPLAY_NAME = 'SLDSSplitViewToggleButton';
export const TOGGLE_BUTTON_WIDTH = '0.75rem';

const propsTypes = {
	/**
	 * **Assistive text for accessibility**
	 * * `toggleButtonOpen`: The button used to open the split view.
	 * * `toggleButtonClose`: The button used to close the split view.
	 */
	assistiveText: PropTypes.shape({
		toggleButtonOpen: PropTypes.string.isRequired,
		toggleButtonClose: PropTypes.string.isRequired,
	}),
	/**
	 * Unique html id placed on the button for aria-controls
	 */
	ariaControls: PropTypes.string.isRequired,
	/**
	 * Determines if the panel is open
	 */
	isOpen: PropTypes.bool.isRequired,
	/**
	 * **Event Callbacks**
	 * * `onClick`: Called when the button is clicked.
	 */
	events: PropTypes.shape({
		onClick: PropTypes.func.isRequired,
	}),
};

const defaultProps = {};

const SplitViewToggleButton = ({
	isOpen,
	assistiveText,
	ariaControls,
	events,
}) => {
	const toggleAssistiveText = isOpen
		? assistiveText.toggleButtonOpen
		: assistiveText.toggleButtonClose;

	return (
		<Button
			className={classNames(
				'slds-button slds-button_icon slds-split-view__toggle-button',
				{ 'slds-is-open': isOpen }
			)}
			aria-expanded={isOpen}
			aria-controls={ariaControls}
			title={toggleAssistiveText}
			variant="base"
			iconName="left"
			iconCategory="utility"
			iconSize="x-small"
			onClick={events.onClick}
			assistiveText={{ icon: toggleAssistiveText }}
		/>
	);
};

SplitViewToggleButton.displayName = DISPLAY_NAME;
SplitViewToggleButton.propTypes = propsTypes;
SplitViewToggleButton.defaultProps = defaultProps;

export default SplitViewToggleButton;