import {useAccessProfileStore} from "~/stores/accessProfile";
import {useRuntimeConfig} from "#app";
import {useAbility} from "@casl/vue";
import {useOrganizationProfileStore} from "~/stores/organizationProfile";
import {MenuGroup, MenuItem} from "~/types/layout";
import {MENU_LINK_TYPE} from "~/types/enum/layout";
import MainMenuBuilder from "~/services/menuBuilder/mainMenuBuilder";
import WebsiteListMenuBuilder from "~/services/menuBuilder/websiteListMenuBuilder";
import MyAccessesMenuBuilder from "~/services/menuBuilder/myAccessesMenuBuilder";
import MyFamilyMenuBuilder from "~/services/menuBuilder/myFamilyMenuBuilder";
import ConfigurationMenuBuilder from "~/services/menuBuilder/configurationMenuBuilder";
import AccountMenuBuilder from "~/services/menuBuilder/accountMenuBuilder";
import {AccessProfile} from "~/types/interfaces";
import {useLayoutStore} from "~/stores/layout";

/**
 * Renvoie des méthodes pour interagir avec les menus
 *
 * Exemple d'usage :
 *
 *     const { buildMenu, hasMenu } = useMenuBuilder()
 *     const menu = buildMenu('Main')
 *
 *     console.log(hasMenu('Main')) // true
 */
export const useMenu = () => {
  const runtimeConfig = useRuntimeConfig()
  const ability = useAbility()
  const organizationProfile = useOrganizationProfileStore()
  const accessProfile = useAccessProfileStore()
  const layoutState = useLayoutStore()

  /**
   * Construct all Menus
   */
  const buildAllMenu = () => {
    const menus = [
      new MainMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile),
      new WebsiteListMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile),
      new MyAccessesMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile),
      new MyFamilyMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile),
      new ConfigurationMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile),
      new AccountMenuBuilder(runtimeConfig, ability, organizationProfile, accessProfile as AccessProfile)
    ]

    for(let menu of menus){
      const menuBuilt = menu.build();

      if(menuBuilt){
        layoutState.menus[menu.getMenuName()] = menuBuilt

        // On enregistre l'état du menu dans le store de la page
        if ( isMenuGroupWithChildren(menuBuilt) ) {
          layoutState.menusOpened[menu.getMenuName()] = false
        }
      }
    }
  }

  /**
   * Test type d'une menu
   * @param args
   */
  const isMenuGroupWithChildren = (args: MenuGroup|MenuItem): boolean => {
    return ((args as MenuGroup).children ?? []).length > 0
  }

  /**
   * Récupère le menu dans le store ou null
   * @param name
   */
  const getMenu = (name: string): MenuGroup|MenuItem|null => {
    return layoutState.menus[name] || null
  }

  /**
   * L'utilisateur en cours a-t-il accès au menu portant ce nom ?
   *
   * @param name
   */
  const hasMenu = (name: string): boolean => {
    return getMenu(name) !== null
  }

  /**
   * Soulève une erreur si aucun menu portant ce nom n'est enregistré dans le store
   *
   * @param name
   */
  const assertExists = (name: string) => {
    if (getMenu(name) === null) {
      throw new Error('Unknown menu : ' + name)
    }
  }

  /**
   * Retourne vrai si le menu est actuellement ouvert / déplié
   *
   * @param name
   */
  const isMenuOpened = (name: string): boolean => {
    assertExists(name)
    return layoutState.menusOpened[name]
  }

  /**
   * Met à jour l'état du menu portant ce nom
   *
   * @param name
   * @param state
   */
  const setMenuState = (name: string, state: boolean) => {
    assertExists(name)
    layoutState.menusOpened[name] = state
  }

  /**
   * Ouvre / déplie le menu portant ce nom
   *
   * @param name
   */
  const openMenu = (name: string) => {
    setMenuState(name, true)
  }

  /**
   * Ferme / replie le menu portant ce nom
   *
   * @param name
   */
  const closeMenu = (name: string) => {
    setMenuState(name, false)
  }

  /**
   * Bascule l'état du menu entre ouvert et fermé
   *
   * @param name
   */
  const toggleMenu = (name: string) => {
    setMenuState(name, !layoutState.menusOpened[name])
  }

  /**
   * Le lien menuItem est-il un lien interne à l'application
   *
   * @param menuItem
   */
  const isInternalLink = (menuItem: MenuItem | MenuGroup): boolean => {
    return 'type' in menuItem && menuItem.type === MENU_LINK_TYPE.INTERNAL
  }

  return {
    buildAllMenu,
    getMenu,
    hasMenu,
    setMenuState,
    openMenu,
    closeMenu,
    toggleMenu,
    isMenuOpened,
    isInternalLink
  }
}