import React from "react";
import PropTypes from "prop-types";
import IconButton from "../icon-button";
import Tooltip from "../tooltip";
import { handleAnyClick } from "../../utils/event";
import uniqueId from "lodash/uniqueId";
import Aside from "../layout/sub-components/aside";
import { desktop } from "../../utils/device";
import Backdrop from "../backdrop";
import { Text } from "../text";
import throttle from "lodash/throttle";
import styled from "styled-components";

const Content = styled.div`
  position: relative;
  width: 100%;
  background-color: #fff;
  padding: 0 16px 16px;
`;

const Header = styled.div`
  display: flex;
  align-items: center;
  border-bottom: 1px solid #dee2e6;
`;

const Body = styled.div`
  position: relative;
  padding: 16px 0;
`;

const HeaderText = styled(Text.ContentHeader)`
  max-width: 500px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
`;
class HelpButton extends React.Component {
  constructor(props) {
    super(props);

    this.state = { isOpen: false, displayType: this.getTypeByWidth() };
    this.ref = React.createRef();
    this.refTooltip = React.createRef();
    this.id = uniqueId();

    this.throttledResize = throttle(this.resize, 300);
  }

  afterShow = () => {
    this.refTooltip.current.updatePosition();
    //console.log(`afterShow ${this.props.tooltipId} isOpen=${this.state.isOpen}`, this.ref, e);
    this.setState({ isOpen: true }, () => {
      handleAnyClick(true, this.handleClick);
    });
  };

  afterHide = () => {
    //console.log(`afterHide ${this.props.tooltipId} isOpen=${this.state.isOpen}`, this.ref, e);
    if (this.state.isOpen) {
      this.setState({ isOpen: false }, () => {
        handleAnyClick(false, this.handleClick);
      });
    }
  };

  handleClick = e => {
    //console.log(`handleClick ${this.props.tooltipId} isOpen=${this.state.isOpen}`, this.ref, e);

    if (!this.ref.current.contains(e.target)) {
      //console.log(`hideTooltip() tooltipId=${this.props.tooltipId}`, this.refTooltip.current);
      this.refTooltip.current.hideTooltip();
    }
  };

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

  componentDidMount() {
    window.addEventListener("resize", this.throttledResize);
  }

  componentWillUnmount() {
    handleAnyClick(false, this.handleClick);
    window.removeEventListener("resize", this.throttledResize);
  }

  componentDidUpdate(prevProps) {
    if (this.props.displayType !== prevProps.displayType) {
      this.setState({ displayType: this.getTypeByWidth() });
    }
    if (this.state.isOpen && this.state.displayType === "aside") {
      window.addEventListener("popstate", this.popstate, false);
    }
  }

  popstate = () => {
    window.removeEventListener("popstate", this.popstate, false);
    this.onClose();
    window.history.go(1);
  };

  resize = () => {
    if (this.props.displayType !== "auto") return;
    const type = this.getTypeByWidth();
    if (type === this.state.displayType) return;
    this.setState({ displayType: type });
  };

  getTypeByWidth = () => {
    if (this.props.displayType !== "auto") return this.props.displayType;
    return window.innerWidth < desktop.match(/\d+/)[0] ? "aside" : "dropdown";
  };

  onClick = () => {
    this.setState({ isOpen: !this.state.isOpen });
  };

  render() {
    const { isOpen, displayType } = this.state;
    const {
      tooltipContent,
      place,
      offsetRight,
      offsetLeft,
      zIndex,
      helpButtonHeaderContent,
      className
    } = this.props;

    return (
      <div ref={this.ref}>
        <IconButton
          id={this.id}
          className={className}
          isClickable={true}
          iconName="QuestionIcon"
          size={13}
          onClick={this.onClick}
        />
        {displayType === "dropdown" ? (
          <Tooltip
            id={this.id}
            reference={this.refTooltip}
            effect="solid"
            place={place}
            offsetRight={offsetRight}
            offsetLeft={offsetLeft}
            afterShow={this.afterShow}
            afterHide={this.afterHide}
          >
            {tooltipContent}
          </Tooltip>
        ) : (
          <>
            <Backdrop onClick={this.onClose} visible={isOpen} zIndex={zIndex} />
            <Aside visible={isOpen} scale={false} zIndex={zIndex}>
              <Content>
                {helpButtonHeaderContent && (
                  <Header>
                    <HeaderText>
                      <Text.Body isBold={true} fontSize={21}>
                        {helpButtonHeaderContent}
                      </Text.Body>
                    </HeaderText>
                  </Header>
                )}
                <Body>{tooltipContent}</Body>
              </Content>
            </Aside>
          </>
        )}
      </div>
    );
  }
}

HelpButton.propTypes = {
  children: PropTypes.oneOfType([
    PropTypes.arrayOf(PropTypes.node),
    PropTypes.node
  ]),
  tooltipContent: PropTypes.oneOfType([PropTypes.string, PropTypes.object])
    .isRequired,
  offsetRight: PropTypes.number,
  tooltipMaxWidth: PropTypes.number,
  tooltipId: PropTypes.string,
  place: PropTypes.string,
  offsetLeft: PropTypes.number,
  zIndex: PropTypes.number,
  displayType: PropTypes.oneOf(["dropdown", "aside", "auto"]),
  helpButtonHeaderContent: PropTypes.string,
  className: PropTypes.string
};

HelpButton.defaultProps = {
  place: "top",
  offsetRight: 120,
  offsetLeft: 0,
  zIndex: 310,
  displayType: "auto"
};

export default HelpButton;