const React = require('react');
const { connect } = require('react-redux');
const { themeStyle } = require('../theme.js');
const { _ } = require('lib/locale.js');

class NoteSearchBarComponent extends React.Component {

	constructor() {
		super();

		this.state = {
			query: '',
		};

		this.searchInput_change = this.searchInput_change.bind(this);
		this.searchInput_keyDown = this.searchInput_keyDown.bind(this);
		this.previousButton_click = this.previousButton_click.bind(this);
		this.nextButton_click = this.nextButton_click.bind(this);
		this.closeButton_click = this.closeButton_click.bind(this);
	}

	style() {
		const theme = themeStyle(this.props.theme);

		let style = {
			root: Object.assign({}, theme.textStyle, {
				backgroundColor: theme.backgroundColor,
				color: theme.colorFaded,
			}),
		};

		return style;
	}

	componentDidMount() {
		this.refs.searchInput.focus();
	}

	buttonIconComponent(iconName, clickHandler) {
		const theme = themeStyle(this.props.theme);

		const searchButton = {
			paddingLeft: 4,
			paddingRight: 4,
			paddingTop: 2,
			paddingBottom: 2,
			textDecoration: 'none',
			marginRight: 5,
		};

		const iconStyle = {
			display: 'flex',
			fontSize: Math.round(theme.fontSize) * 1.2,
			color: theme.color,
		};

		const icon = <i style={iconStyle} className={"fa " + iconName}></i>

		return (
			<a
				href="#"
				style={searchButton}
				onClick={clickHandler}
			>{icon}</a>
		);
	}

	searchInput_change(event) {
		const query = event.currentTarget.value;
		this.setState({ query: query });
		this.triggerOnChange(query);
	}

	searchInput_keyDown(event) {
		if (event.keyCode === 13) { // ENTER
			event.preventDefault();

			if (!event.shiftKey) {
				if (this.props.onNext) this.props.onNext();
			} else {
				if (this.props.onPrevious) this.props.onPrevious();
			}
		}

		if (event.keyCode === 27) { // ESCAPE
			event.preventDefault();

			if (this.props.onClose) this.props.onClose();
		}
	}

	previousButton_click(event) {
		if (this.props.onPrevious) this.props.onPrevious();
	}

	nextButton_click(event) {
		if (this.props.onNext) this.props.onNext();
	}

	closeButton_click(event) {
		if (this.props.onClose) this.props.onClose();
	}

	triggerOnChange(query) {
		if (this.props.onChange) this.props.onChange(query);
	}

	focus() {
		this.refs.searchInput.focus();
	}

	render() {
		const theme = themeStyle(this.props.theme);

		const closeButton = this.buttonIconComponent('fa-times', this.closeButton_click);
		const previousButton = this.buttonIconComponent('fa-chevron-up', this.previousButton_click);
		const nextButton = this.buttonIconComponent('fa-chevron-down', this.nextButton_click);

		return (
			<div style={this.props.style}>
				<div style={{display: 'flex', flexDirection: 'row', alignItems: 'center' }}>
					{ closeButton }
					<input placeholder={_('Search...')} value={this.state.query} onChange={this.searchInput_change} onKeyDown={this.searchInput_keyDown} ref="searchInput" type="text" style={{width: 200, marginRight: 5}}></input>
					{ nextButton }
					{ previousButton }
				</div>
			</div>
		);
	}

}

const mapStateToProps = (state) => {
	return {
		theme: state.settings.theme,
	};
};

const NoteSearchBar = connect(mapStateToProps, null, null, { withRef: true })(NoteSearchBarComponent);

module.exports = NoteSearchBar;