import React from 'react'
import PropTypes from 'prop-types'
import styled from 'styled-components';
import InputBlock from '../input-block'
import DropDownItem from '../drop-down-item'
import DropDown from '../drop-down'
import { Icons } from '../icons'
import { handleAnyClick } from '../../utils/event';

const StyledComboBox = styled.div`
  * {
    ${props => !props.withBorder && `border-color: transparent !important;`}
  }

  ${state => state.isOpen && `
    .input-group-append > div {
      -moz-transform: scaleY(-1);
      -o-transform: scaleY(-1);
      -webkit-transform: scaleY(-1);
      transform: scaleY(-1);
    }
  `}
    
  & > div > input {    
    &::placeholder {
      font-family: Open Sans;
      font-style: normal;
      font-weight: 600;
      font-size: 13px;
      line-height: 20px;
      ${props => !props.isDisabled && `color: #333333;`}
      ${props => (!props.withBorder & !props.isDisabled) && `border-bottom: 1px dotted #333333;`}
      opacity: 1;

      -webkit-touch-callout: none;
      -webkit-user-select: none;
      -moz-user-select: none;
      -ms-user-select: none;
      user-select: none;
    }
  }
`;

const StyledIcon = styled.span`
  width: 16px;
  margin-left: 8px;
  line-height:  14px;
`;

class ComboBox extends React.PureComponent {
  constructor(props) {
    super(props);

    this.ref = React.createRef();

    const selectedItem = this.getSelected();

    this.state = {
      isOpen: props.opened,
      boxLabel: selectedItem && selectedItem.label,
      boxIcon: selectedItem && selectedItem.icon,
      options: props.options
    };

    this.handleClick = this.handleClick.bind(this);
    this.stopAction = this.stopAction.bind(this);
    this.toggle = this.toggle.bind(this);
    this.comboBoxClick = this.comboBoxClick.bind(this);
    this.optionClick = this.optionClick.bind(this);

    if (props.opened)
      handleAnyClick(true, this.handleClick);
  }

  handleClick = (e) => this.state.isOpen && !this.ref.current.contains(e.target) && this.toggle(false);

  stopAction = (e) => e.preventDefault();

  toggle = (isOpen) => this.setState({ isOpen: isOpen });

  comboBoxClick = (e) => {
    if (this.props.isDisabled || !!e.target.closest('.input-group-prepend')) return;

    this.setState({
      option: this.props.option,
      isOpen: !this.state.isOpen
    });
  };

  optionClick = (option) => {
    this.setState({
      boxLabel: option.label,
      boxIcon: option.icon,
      isOpen: !this.state.isOpen
    });
    this.props.onSelect && this.props.onSelect(option);
  };

  componentWillUnmount() {
    handleAnyClick(false, this.handleClick);
  }

  getSelected = () => {
    const selectedItem = this.props.options.find(x => x.key === this.props.selectedOption)
      || this.props.options[0];

    return selectedItem;
  }

  getSelectedLabel = () => {
    const selectedItem = this.getSelected();

    return selectedItem ? selectedItem.label : "1-1";
  }

  componentDidUpdate(prevProps, prevState) {
    if (this.props.opened !== prevProps.opened) {
      this.toggle(this.props.opened);
    }

    if (this.state.isOpen !== prevState.isOpen) {
      handleAnyClick(this.state.isOpen, this.handleClick);
    }

    if (this.props.options.length !== prevProps.options.length) { //TODO: Move options from state
      const label = this.getSelectedLabel();
      this.setState({ 
        options: this.props.options,
        boxLabel: label 
      });
    }

    if (this.props.selectedOption !== prevProps.selectedOption) {
      const label = this.getSelectedLabel();
      this.setState({ boxLabel: label });
    }
  }

  render() {
    console.log("ComboBox render");

    const dropDownMaxHeightProp = this.props.dropDownMaxHeight ? { maxHeight: this.props.dropDownMaxHeight } : {}

    return (
      <StyledComboBox ref={this.ref}
        {...this.props}
        {...this.state}
        data={this.state.boxLabel}
        onClick={this.comboBoxClick}
        onSelect={this.stopAction}
      >
        <InputBlock placeholder={this.state.boxLabel}
          iconName='ExpanderDownIcon'
          iconSize={8}
          isIconFill={true}
          iconColor='#A3A9AE'
          scale={true}
          isDisabled={this.props.isDisabled}
          isReadOnly={true}
        >
          {this.state.boxIcon &&
            <StyledIcon>
              {React.createElement(Icons[this.state.boxIcon],
                {
                  size: "scale",
                  color: this.props.isDisabled ? '#D0D5DA' : '#333333',
                  isfill: true
                })
              }
            </StyledIcon>}
          {this.props.children}
          <DropDown
            directionX={this.props.directionX}
            directionY={this.props.directionY}
            manualWidth='100%'
            manualY='102%'
            isOpen={this.state.isOpen}
            {...dropDownMaxHeightProp}
          >
            {this.state.options.map((option) =>
              <DropDownItem {...option}
                disabled={option.label === this.state.boxLabel}
                onClick={this.optionClick.bind(this, option)}
              />
            )}
          </DropDown>
        </InputBlock>
      </StyledComboBox>
    );
  }
};

ComboBox.propTypes = {
  isDisabled: PropTypes.bool,
  withBorder: PropTypes.bool,
  selectedOption: PropTypes.oneOfType([
    PropTypes.string,
    PropTypes.number
  ]),
  options: PropTypes.array,
  onSelect: PropTypes.func,
  dropDownMaxHeight: PropTypes.string
}

ComboBox.defaultProps = {
  isDisabled: false,
  withBorder: true,
  dropDownMaxHeight: null
}

export default ComboBox;