import AbstractMenuBuilder from '~/services/layout/menuBuilder/abstractMenuBuilder'
import type { MenuGroup, MenuItem, MenuItems } from '~/types/layout'
import { MENU_LINK_TYPE } from '~/types/enum/layout'

/**
 * Menu agenda
 */
export default class AgendaMenuBuilder extends AbstractMenuBuilder {
  static readonly menuName = 'Agenda'

  /**
   * Construit le menu Agenda ou null si aucune page accessible
   */
  build(): MenuItem | MenuGroup | null {
    const children: MenuItems = []

    if (this.ability.can('display', 'agenda_page')) {
      children.push(
        this.createItem(
          'schedule',
          { name: 'fas fa-calendar-alt' },
          '/calendar',
          MENU_LINK_TYPE.V1,
        ),
      )
    }

    if (this.ability.can('display', 'attendance_page')) {
      children.push(
        this.createItem(
          'attendances',
          { name: 'fas fa-calendar-check' },
          '/attendances/list/',
          MENU_LINK_TYPE.V1,
        ),
      )
    }

    if (children.length > 1) {
      // Plusieurs éléments, on retourne un groupe
      return this.createGroup(
        'schedule',
        { name: 'fas fa-calendar-alt' },
        children,
      )
    } else if (children.length === 1) {
      // Un seul élément, on retourne cet élément seul
      return children[0]
    }

    return null
  }
}