import React from 'react';
import PropTypes from 'prop-types';
import cx from 'classnames';

class Header extends React.Component {
  static propTypes = {
    height: PropTypes.number,
    activeEditor: PropTypes.string,
    isBundling: PropTypes.bool,
    onRunClick: PropTypes.func.isRequired,
    onPrettierClick: PropTypes.func.isRequired,
    onEditorClick: PropTypes.func,
    onShareClick: PropTypes.func,
    onSaveGistClick: PropTypes.func,
    onResetEditors: PropTypes.func,
    onToggleAutorun: PropTypes.func
  };

  static defaultProps = {
    height: 38,
    activeEditor: 'code'
  };

  constructor() {
    super();

    this.buttons = [
      {id: 'code', text: 'code'},
      {id: 'html', text: 'html'},
      {id: 'package', text: 'package.json'}
    ];

    this.state = {
      dropdownVisible: false
    };
  }

  onChangeEditorTo(editor) {
    const { onEditorClick } = this.props;
    return e => {
      e.preventDefault();
      onEditorClick && onEditorClick(editor, e);
    };
  }

  showDropdown() {
    if (this.props.isBundling) return;
    this.setState({dropdownVisible: true});
  }

  hideDropdown() {
    this.setState({dropdownVisible: false});
  }

  saveGist(status) {
    const { onSaveGistClick } = this.props;
    return e => {
      e.preventDefault();
      this.hideDropdown();
      onSaveGistClick && onSaveGistClick(status);
    };
  }

  click(handler) {
    const fn = this.props[handler];

    return e => {
      e.preventDefault();
      this.hideDropdown();
      fn && fn();
    };
  }

  render() {
    const { height, activeEditor, isBundling, autorunIsOn, onRunClick } = this.props;
    const { dropdownVisible } = this.state;

    return (
      <header className="clearfix bg-yellow relative" style={{ height }}>
        <div className="left">
          <a href="/" className="caps regular btn py1 m0 logo">
            <img src="assets/js.svg" width="20" className="inline-block left" />
            <span className="inline-block align-middle left text">ESNextBin</span>
            <sup>beta</sup>
          </a>
        </div>

        <div className="editor-buttons-group center absolute top-0 left-0 right-0 bottom-0 clearfix h6 black">
          <div>
            {this.buttons.map((b, i) => {
              const isActive = activeEditor === b.id;
              return (
                <button
                  key={b.id}
                  type="button"
                  className={cx('btn btn-small regular caps', {
                    'bg-black': isActive,
                    'btn-primary': isActive,
                    'btn-outline': !isActive,
                    'bg-yellow': !isActive,
                    'rounded-left': i === 0,
                    'not-rounded': i === 1,
                    'rounded-right': i === 2,
                    'border-left-0': i !== 0
                  })}
                  onClick={this.onChangeEditorTo(b.id)}
                >
                  {b.id}
                </button>
              );
            })}
          </div>
        </div>

        <div className="right">
          <button
            type="button"
            className="left btn btn-primary btn-small h6 caps regular rounded bg-fuchsia run-btn"
            onClick={onRunClick}
            disabled={isBundling}
          >
            &#9654; Execute
          </button>

          <div className="relative inline-block actions-dropdown">
            <button
              type="button"
              className="btn btn-outline black btn-small h6 caps regular"
              onClick={::this.showDropdown}
              disabled={isBundling}
            >
              Actions
            </button>
            <div className={cx('fixed top-0 right-0 bottom-0 left-0', {hide: !dropdownVisible})} onClick={::this.hideDropdown} />
            <div className="absolute right-0 mt1 nowrap white bg-black rounded h6 caps actions-dropdown-items" style={{visibility: dropdownVisible ? 'visible' : 'hidden'}}>
              <a href="#!" className="btn block" onClick={this.click('onPrettierClick')}>Run Prettier</a>
              <a href="#!" className="btn block" onClick={this.saveGist('public')}>Save Gist</a>
              <a href="#!" className="btn block" onClick={this.saveGist('private')}>Save Private Gist</a>
              <a href="#!" className="btn block" onClick={this.click('onToggleAutorun')}>{autorunIsOn ? 'Disable Autorun' : 'Enable Autorun'}</a>
              {/* TBD: <a href="#!" className="btn block" onClick={this.click('onShareClick')}>Share Sketch</a>*/}
              <a href="#!" className="btn block" onClick={this.click('onResetEditors')}>Clean Session</a>
              <a href="https://github.com/voronianski/esnextbin" target="_blank" className="btn block">Star on Github</a>
              <a href="https://github.com/voronianski/esnextbin/issues/new" target="_blank" className="btn block">Report Issue</a>
              <a href="https://www.paypal.me/voronianski" target="_blank" className="btn block">Support Project</a>
            </div>
          </div>
        </div>
      </header>
    );
  }
}

export default Header;