import 'elix/define/MenuItem.js';
import './sePlainMenuButton.js';

const template = document.createElement('template');
template.innerHTML = `
  <style>
  :host {
    padding: 0px;
  }
  elix-menu-button::part(menu) {
    background-color: var(--icon-bg-color) !important;
    color: #fff;
  }
  elix-menu-button::part(popup-toggle) {
    padding: 0.25em 0.30em !important
  }
  :host ::slotted([current]){
    background-color: var(--icon-bg-color-hover) !important;
    color: #fff;
  }
  :host ::slotted(*){
    padding: 0.25em 1.25em 0.25em 0.25em !important;
    margin: 2px;
  }
  </style>

  <elix-menu-button id="MenuButton" aria-label="Main Menu">
    <slot></slot>
  </elix-menu-button>

`;
/**
 * @class SeMenu
 */
export class SeMenu extends HTMLElement {
  /**
    * @function constructor
    */
  constructor () {
    super();
    // create the shadowDom and insert the template
    this._shadowRoot = this.attachShadow({ mode: 'open' });
    this._shadowRoot.append(template.content.cloneNode(true));
    this.$menu = this._shadowRoot.querySelector('elix-menu-button');
    this.$label = this.$menu.shadowRoot.querySelector('#popupToggle').shadowRoot;
  }
  /**
   * @function observedAttributes
   * @returns {any} observed
   */
  static get observedAttributes () {
    return [ 'label', 'src' ];
  }

  /**
   * @function attributeChangedCallback
   * @param {string} name
   * @param {string} oldValue
   * @param {string} newValue
   * @returns {void}
   */
  attributeChangedCallback (name, oldValue, newValue) {
    const image = new Image();
    if (oldValue === newValue) return;
    switch (name) {
    case 'src':
      image.src = newValue;
      image.width = 24;
      image.height = 24;
      this.$label.prepend(image);
      break;
    case 'label':
      this.$label.prepend(newValue);
      break;
    default:
      // eslint-disable-next-line no-console
      console.error(`unknown attribute: ${name}`);
      break;
    }
  }
  /**
   * @function get
   * @returns {any}
   */
  get label () {
    return this.getAttribute('label');
  }

  /**
   * @function set
   * @returns {void}
   */
  set label (value) {
    this.setAttribute('label', value);
  }
  /**
   * @function get
   * @returns {any}
   */
  get src () {
    return this.getAttribute('src');
  }

  /**
   * @function set
   * @returns {void}
   */
  set src (value) {
    this.setAttribute('src', value);
  }
  /**
   * @function connectedCallback
   * @returns {void}
   */
  /* connectedCallback () {
    this.$menu.addEventListener('openedchange', (e) => {
      e.preventDefault();
      const selectedItem = e?.detail?.closeResult;
      if (selectedItem !== undefined && selectedItem?.id !== undefined) {
        document.getElementById(selectedItem.id).click();
      }
    });
  } */
}

// Register
customElements.define('se-menu', SeMenu);
