import PropTypes from 'prop-types';
import React from 'react';
import { List } from 'immutable';
import ImmutablePropTypes from 'react-immutable-proptypes';
import c from 'classnames';
import { Dropdown, DropdownItem, Toggle, Icon } from 'UI';
import ToolbarButton from './ToolbarButton';

export default class Toolbar extends React.Component {
  static propTypes = {
    buttons: PropTypes.object,
    onToggleMode: PropTypes.func.isRequired,
    rawMode: PropTypes.bool,
    plugins: ImmutablePropTypes.map,
    onSubmit: PropTypes.func,
    onAddAsset: PropTypes.func,
    getAsset: PropTypes.func,
    disabled: PropTypes.bool,
    className: PropTypes.string,
    buttons: ImmutablePropTypes.list
  };

  constructor(props) {
    super(props);
    this.state = {
      activePlugin: null,
    };
  }

  getToolbarButtonsList() {
    const {
      onMarkClick,
      onBlockClick,
      onLinkClick,
      selectionHasMark,
      selectionHasBlock,
      selectionHasLink,
      disabled,
      buttons
    } = this.props;

    const toolbarButtons = [
      { type: 'bold', label: 'Bold', icon: 'bold', onClick: onMarkClick, isActive: selectionHasMark, disabled },
      { type: 'italic', label: 'Italic', icon: 'italic', onClick: onMarkClick, isActive: selectionHasMark, disabled },
      { type: 'code', label: 'Code', icon: 'code', onClick: onMarkClick, isActive: selectionHasMark, disabled },
      { type: 'link', label: 'Link', icon: 'link', onClick: onLinkClick, isActive: selectionHasLink, disabled },
      { type: 'heading-one', label: 'Header 1', icon: 'h1', onClick: onBlockClick, isActive: selectionHasBlock, disabled },
      { type: 'heading-two', label: 'Header 2', icon: 'h2', onClick: onBlockClick, isActive: selectionHasBlock, disabled },
      { type: 'quote', label: 'Quote', icon: 'quote', onClick: onBlockClick, isActive: selectionHasBlock, disabled },
      { type: 'code', label: 'Code Block', icon: 'code-block', onClick: onBlockClick, isActive: selectionHasBlock, disabled },
      { type: 'bulleted-list', label: 'Bulleted List', icon: 'list-bulleted', onClick: onBlockClick, isActive: selectionHasBlock, disabled },
      { type: 'numbered-list', label: 'Numbered List', icon: 'list-numbered', onClick: onBlockClick, isActive: selectionHasBlock, disabled }
    ];

    return buttons === undefined ? toolbarButtons : toolbarButtons.filter(button => buttons.includes(button.type));
  }

  renderToolbarButton(button) {
    const { type, label, icon, onClick, isActive, disabled } = button;
    return <ToolbarButton key={label} type={type} label={label} icon={icon} onClick={onClick} isActive={isActive} disabled={disabled}/>;
  }

  renderToolbarDropdown() {
    const { plugins, disabled, onSubmit } = this.props;

    return (
      <div className="nc-toolbar-dropdown">
        <Dropdown
          dropdownTopOverlap="36px"
          button={
            <ToolbarButton
              label="Add Component"
              icon="add-with"
              onClick={this.handleComponentsMenuToggle}
              disabled={disabled}
            />
          }
        >
          {plugins && plugins.toList().map((plugin, idx) => (
            <DropdownItem key={idx} label={plugin.get('label')} onClick={() => onSubmit(plugin.get('id'))} />
          ))}
        </Dropdown>
      </div>
    );
  }

  renderToolbarToggle() {
    const {
      onToggleMode,
      rawMode,
      plugins,
      disabled,
      className
    } = this.props;

    /**
     * Because the toggle labels change font weight for active/inactive state,
     * we need to set estimated widths for them to maintain position without
     * moving other inline items on font weight change.
     */
    const toggleOffLabel = 'Rich text';
    const toggleOffLabelWidth = '62px';
    const toggleOnLabel = 'Markdown';
    const toggleOnLabelWidth = '70px';

    return (
      <div className="nc-markdownWidget-toolbar-toggle">
        <span
          style={{ width: toggleOffLabelWidth }}
          className={c(
            'nc-markdownWidget-toolbar-toggle-label',
            { 'nc-markdownWidget-toolbar-toggle-label-active': !rawMode },
          )}
        >
          {toggleOffLabel}
        </span>
        <Toggle
          active={rawMode}
          onChange={onToggleMode}
          className="nc-markdownWidget-toolbar-toggle"
          classNameBackground="nc-markdownWidget-toolbar-toggle-background"
        />
        <span
          style={{ width: toggleOnLabelWidth }}
          className={c(
            'nc-markdownWidget-toolbar-toggle-label',
            { 'nc-markdownWidget-toolbar-toggle-label-active': rawMode },
          )}
        >
          {toggleOnLabel}
        </span>
      </div>
    );
  }

  render() {
    return (
      <div className={c(this.props.className, 'nc-toolbar-Toolbar')}>
        <div>
          {this.getToolbarButtonsList().map((toolbarButton) => this.renderToolbarButton(toolbarButton))}
          {this.renderToolbarDropdown()}
        </div>
        {this.renderToolbarToggle()}
      </div>
    );
  }
}