import { ItemMenu, ItemsMenu, Menu } from '~/types/interfaces'
import BaseMenu from '~/composables/layout/Menus/baseMenu'
import {useAbility} from "@casl/vue";

/**
 * @category composables/layout/Menus
 * @class AgendaMenu
 * Classe pour la construction du Menu agenda
 */
class AgendaMenu extends BaseMenu implements Menu {

  /**
   * @constructor
   * Initialisation des services issues du context
   */
  constructor () {
    const {$config} = useNuxtApp()

    super($config)
  }

  /**
   * Construit le menu Agenda ou null si aucune page accessible
   * @return {ItemMenu | null}
   */
  getMenu (): ItemMenu | null {
    const {can} = useAbility()
    const children: ItemsMenu = []

    if (can('display', 'agenda_page')) {
      children.push(this.constructMenu('schedule', {name: 'fa-calendar-alt'}, '/calendar', true))
    }

    if (can('display', 'attendance_page')) {
      children.push(this.constructMenu('attendances', {name: 'fa-calendar-check'}, '/attendances/list/', true))
    }

    if (children.length === 1) {
      return children[0]
    }
    return children.length > 0 ? this.constructMenu('schedule', {name: 'fa-calendar-alt'}, undefined, undefined, children) : null
  }
}

export const getAgendaMenu = () => new AgendaMenu().getMenu()