const React = require('react');
const { _ } = require('@joplin/lib/locale');
const { themeStyle } = require('@joplin/lib/theme');
const time = require('@joplin/lib/time').default;
const Datetime = require('react-datetime');
const CreatableSelect = require('react-select/lib/Creatable').default;
const Select = require('react-select').default;
const makeAnimated = require('react-select/lib/animated').default;

class PromptDialog extends React.Component {
	constructor() {
		super();

		this.answerInput_ = React.createRef();
	}

	UNSAFE_componentWillMount() {
		this.setState({
			visible: false,
			answer: this.props.defaultValue ? this.props.defaultValue : '',
		});
		this.focusInput_ = true;
	}

	UNSAFE_componentWillReceiveProps(newProps) {
		if ('visible' in newProps && newProps.visible !== this.props.visible) {
			this.setState({ visible: newProps.visible });
			if (newProps.visible) this.focusInput_ = true;
		}

		if ('defaultValue' in newProps && newProps.defaultValue !== this.props.defaultValue) {
			this.setState({ answer: newProps.defaultValue });
		}
	}

	componentDidUpdate() {
		if (this.focusInput_ && this.answerInput_.current) this.answerInput_.current.focus();
		this.focusInput_ = false;
	}

	styles(themeId, width, height, visible) {
		const styleKey = `${themeId}_${width}_${height}_${visible}`;
		if (styleKey === this.styleKey_) return this.styles_;

		const theme = themeStyle(themeId);

		this.styleKey_ = styleKey;

		this.styles_ = {};

		const paddingTop = 20;

		this.styles_.modalLayer = {
			zIndex: 9999,
			position: 'absolute',
			top: 0,
			left: 0,
			width: width,
			height: height - paddingTop,
			backgroundColor: 'rgba(0,0,0,0.6)',
			display: visible ? 'flex' : 'none',
			alignItems: 'flex-start',
			justifyContent: 'center',
			paddingTop: `${paddingTop}px`,
		};

		this.styles_.promptDialog = {
			backgroundColor: theme.backgroundColor,
			padding: 16,
			display: 'inline-block',
			maxWidth: width * 0.5,
			boxShadow: '6px 6px 20px rgba(0,0,0,0.5)',
		};

		this.styles_.button = {
			minWidth: theme.buttonMinWidth,
			minHeight: theme.buttonMinHeight,
			marginLeft: 5,
			color: theme.color,
			backgroundColor: theme.backgroundColor,
			border: '1px solid',
			borderColor: theme.dividerColor,
		};

		this.styles_.label = {
			marginRight: 5,
			fontSize: theme.fontSize,
			color: theme.color,
			fontFamily: theme.fontFamily,
			verticalAlign: 'middle',
		};

		this.styles_.input = {
			width: 0.5 * width,
			maxWidth: 400,
			color: theme.color,
			backgroundColor: theme.backgroundColor,
			border: '1px solid',
			borderColor: theme.dividerColor,
		};

		this.styles_.select = {
			control: provided =>
				Object.assign(provided, {
					minWidth: width * 0.2,
					maxWidth: width * 0.5,
					fontFamily: theme.fontFamily,
				}),
			input: provided =>
				Object.assign(provided, {
					minWidth: '20px',
					color: theme.color,
				}),
			menu: provided =>
				Object.assign(provided, {
					color: theme.color,
					fontFamily: theme.fontFamily,
					backgroundColor: theme.backgroundColor,
				}),
			option: (provided, state) =>
				Object.assign(provided, {
					color: theme.color,
					fontFamily: theme.fontFamily,
					paddingLeft: `${10 + (state.data.indentDepth || 0) * 20}px`,
				}),
			multiValueLabel: provided =>
				Object.assign(provided, {
					fontFamily: theme.fontFamily,
				}),
			multiValueRemove: provided =>
				Object.assign(provided, {
					color: theme.color,
				}),
		};

		this.styles_.selectTheme = tagTheme =>
			Object.assign(tagTheme, {
				borderRadius: 2,
				colors: Object.assign(tagTheme.colors, {
					primary: theme.raisedBackgroundColor,
					primary25: theme.raisedBackgroundColor,
					neutral0: theme.backgroundColor,
					neutral5: theme.backgroundColor,
					neutral10: theme.raisedBackgroundColor,
					neutral20: theme.raisedBackgroundColor,
					neutral30: theme.raisedBackgroundColor,
					neutral40: theme.color,
					neutral50: theme.color,
					neutral60: theme.color,
					neutral70: theme.color,
					neutral80: theme.color,
					neutral90: theme.color,
					danger: theme.backgroundColor,
					dangerLight: theme.colorError2,
				}),
			});

		this.styles_.desc = Object.assign({}, theme.textStyle, {
			marginTop: 10,
		});

		return this.styles_;
	}

	render() {
		const style = this.props.style;
		const theme = themeStyle(this.props.themeId);
		const buttonTypes = this.props.buttons ? this.props.buttons : ['ok', 'cancel'];

		const styles = this.styles(this.props.themeId, style.width, style.height, this.state.visible);

		const onClose = (accept, buttonType) => {
			if (this.props.onClose) {
				let outputAnswer = this.state.answer;
				if (this.props.inputType === 'datetime') {
					// outputAnswer = anythingToDate(outputAnswer);
					outputAnswer = time.anythingToDateTime(outputAnswer);
				}
				this.props.onClose(accept ? outputAnswer : null, buttonType);
			}
			this.setState({ visible: false, answer: '' });
		};

		const onChange = event => {
			this.setState({ answer: event.target.value });
		};

		// const anythingToDate = (o) => {
		// 	if (o && o.toDate) return o.toDate();
		// 	if (!o) return null;
		// 	let m = moment(o, time.dateTimeFormat());
		// 	if (m.isValid()) return m.toDate();
		// 	m = moment(o, time.dateFormat());
		// 	return m.isValid() ? m.toDate() : null;
		// }

		const onDateTimeChange = momentObject => {
			this.setState({ answer: momentObject });
		};

		const onSelectChange = newValue => {
			this.setState({ answer: newValue });
			this.focusInput_ = true;
		};

		const onKeyDown = event => {
			if (event.key === 'Enter') {
				if (this.props.inputType !== 'tags' && this.props.inputType !== 'dropdown') {
					onClose(true);
				} else if (this.answerInput_.current && !this.answerInput_.current.state.menuIsOpen) {
					// The menu will be open if the user is selecting a new item
					onClose(true);
				}
			} else if (event.key === 'Escape') {
				onClose(false);
			}
		};

		const descComp = this.props.description ? <div style={styles.desc}>{this.props.description}</div> : null;

		let inputComp = null;

		if (this.props.inputType === 'datetime') {
			inputComp = <Datetime className="datetime-picker" value={this.state.answer} inputProps={{ style: styles.input }} dateFormat={time.dateFormat()} timeFormat={time.timeFormat()} onChange={momentObject => onDateTimeChange(momentObject)} />;
		} else if (this.props.inputType === 'tags') {
			inputComp = <CreatableSelect className="tag-selector" styles={styles.select} theme={styles.selectTheme} ref={this.answerInput_} value={this.state.answer} placeholder="" components={makeAnimated()} isMulti={true} isClearable={false} backspaceRemovesValue={true} options={this.props.autocomplete} onChange={onSelectChange} onKeyDown={event => onKeyDown(event)} />;
		} else if (this.props.inputType === 'dropdown') {
			inputComp = <Select className="item-selector" styles={styles.select} theme={styles.selectTheme} ref={this.answerInput_} components={makeAnimated()} value={this.props.answer} defaultValue={this.props.defaultValue} isClearable={false} options={this.props.autocomplete} onChange={onSelectChange} onKeyDown={event => onKeyDown(event)} />;
		} else {
			inputComp = <input style={styles.input} ref={this.answerInput_} value={this.state.answer} type="text" onChange={event => onChange(event)} onKeyDown={event => onKeyDown(event)} />;
		}

		const buttonComps = [];
		if (buttonTypes.indexOf('ok') >= 0) {
			buttonComps.push(
				<button key="ok" disabled={!this.state.answer} style={styles.button} onClick={() => onClose(true, 'ok')}>
					{_('OK')}
				</button>
			);
		}
		if (buttonTypes.indexOf('cancel') >= 0) {
			buttonComps.push(
				<button key="cancel" style={styles.button} onClick={() => onClose(false, 'cancel')}>
					{_('Cancel')}
				</button>
			);
		}
		if (buttonTypes.indexOf('clear') >= 0) {
			buttonComps.push(
				<button key="clear" style={styles.button} onClick={() => onClose(false, 'clear')}>
					{_('Clear')}
				</button>
			);
		}

		return (
			<div className="modal-layer" style={styles.modalLayer}>
				<div className="modal-dialog" style={styles.promptDialog}>
					<label style={styles.label}>{this.props.label ? this.props.label : ''}</label>
					<div style={{ display: 'inline-block', color: 'black', backgroundColor: theme.backgroundColor }}>
						{inputComp}
						{descComp}
					</div>
					<div style={{ textAlign: 'right', marginTop: 10 }}>{buttonComps}</div>
				</div>
			</div>
		);
	}
}

module.exports = { PromptDialog };