import { Component, createRef } from 'react';
import PropTypes from 'prop-types';

class Toggle extends Component {
	state = {
		on: false,
	}

	wrapper = createRef()

	escapeListener = event => {
		if (event.keyCode === 27) {
			this.toggle();
		}
	}

	clickListener = event => {
		const { wrapper } = this;
		const clickedOutside = !wrapper.current.contains(event.target);

		if (clickedOutside) {
			this.toggle();
		}
	}

	toggle = e => {
		if (e) {
			e.stopPropagation();
		}

		if (!this.state.on) {
			window.addEventListener('click', this.clickListener);
			window.addEventListener('keyup', this.escapeListener);
		} else {
			window.removeEventListener('click', this.clickListener);
			window.removeEventListener('keyup', this.escapeListener);
		}

		this.setState(prevState => ({
			on: !prevState.on
		}));
	}

	render () {
		const { on } = this.state;
		const { toggle, wrapper } = this;

		const passedProps = {
      // is the Toggle triggered or not...
			on,
      // Use this to toggle it out
			toggle,
      // Add this ref to your component to click-out works!
			wrapper,
		};

		return this.props.children({ ...passedProps });
	}
}

Toggle.propTypes = {
	children: PropTypes.func.isRequired,
};

export default Toggle;