/* 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';

// ### classNames
// [github.com/JedWatson/classnames](https://github.com/JedWatson/classnames)
// This project uses `classnames`, 'a simple javascript utility for conditionally
// joining classNames together.'
import classNames from 'classnames';

// Child component
import { PROGRESS_INDICATOR_STEP_VERTICAL } from '../../../utilities/constants';
import Icon from '../../icon';

// ### Display Name
const displayName = PROGRESS_INDICATOR_STEP_VERTICAL;

// ### Prop Types
const propTypes = {
	/**
	 * **Assistive text for accessibility**
	 * This object is merged with the default props object on every render.
	 * * `completedStep`: Label for a completed step. The default is `Completed Step`
	 * * `disabledStep`: Label for disabled step. The default is `Disabled Step`
	 * * `errorStep`: Label for a step with an error. The default is `Error Step`
	 * * `percentage`: Label for Progress Bar. The default is `Progress: [this.props.value]%`. You will need to calculate the percentage yourself if changing this string.
	 * * `step`: Label for a step. It will be typically followed by the number of the step such as "Step 1".
	 */
	assistiveText: PropTypes.shape({
		completedStep: PropTypes.string,
		disabledStep: PropTypes.string,
		percentage: PropTypes.string,
		step: PropTypes.string,
	}),
	/**
	 * Id for Steps, ranging in [0, steps.length).
	 */
	id: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),
	/**
	 * Index of step. Used for id's if no step ID exists
	 */
	index: PropTypes.number,
	/**
	 * Determines if the step has been completed
	 */
	isCompleted: PropTypes.bool,
	/**
	 * Determines if the step has been disabled
	 */
	isDisabled: PropTypes.bool,
	/**
	 * Determines if the step contains an error
	 */
	isError: PropTypes.bool,
	/**
	 * Determines if the step is currently selected (active)
	 */
	isSelected: PropTypes.bool,
	/**
	 * Step object. This is passed into event callbacks.
	 */
	step: PropTypes.object,
};

/**
 * StepVertical renders a step icon and its step label if applied
 */
class StepVertical extends React.Component {
	/**
	 * stepIcon represents the icon used for each step.
	 */
	stepIcon = (renderIcon) => {
		const icon = renderIcon ? (
			<Icon
				category="utility"
				size="x-small"
				name={this.props.isError ? 'error' : 'success'}
			/>
		) : null;

		return (
			<span
				className={classNames('slds-progress__marker', {
					'slds-progress__marker_icon': renderIcon,
				})}
			>
				{icon}
			</span>
		);
	};

	render() {
		const renderIcon = this.props.isCompleted || this.props.isError;

		return (
			<li
				className={classNames('slds-progress__item', {
					'slds-is-completed': this.props.isCompleted,
					'slds-is-active': this.props.isSelected && !this.props.isError,
					'slds-has-error': this.props.isError,
				})}
			>
				{this.stepIcon(renderIcon)}
				<div
					id={`progress-indicator-vertical-label-${this.props.step.id ||
						this.props.index}`}
					className="slds-progress__item_content slds-grid slds-grid_align-spread"
				>
					{this.props.step.label}
				</div>
			</li>
		);
	}
}

StepVertical.propTypes = propTypes;
StepVertical.displayName = displayName;

export default StepVertical; // export is replaced with `ReactDOM.render(<Example />, mountNode);` at runtime