import { computed, ComputedRef } from '@nuxtjs/composition-api'
import { Item, Model } from '@vuex-orm/core'
import { repositoryHelper } from '~/services/store/repository'
import { QUERY_TYPE } from '~/types/enums'
import { AnyJson, AnyStore, Historical } from '~/types/interfaces'
import DataPersister from '~/services/data/dataPersister'
import { MyProfile } from '~/models/Access/MyProfile'
import { $accessProfile } from '@/services/profile/accessProfile'
import { useContext } from '@nuxtjs/composition-api'

/**
 * @category Use/updater
 * @class UseMyProfileUpdater
 * Use Classe pour la gestion REST de MyProfile
 */
export class UseMyProfileUpdater {
  private store!:AnyStore
  private $dataPersister!:DataPersister
  private myProfile!:MyProfile

  constructor (store:AnyStore, $dataPersister:DataPersister) {
    this.store = store
    this.$dataPersister = $dataPersister
  }

  /**
   * Composition function
   */
  public invoke (): AnyJson {

    const {$ability} = useContext()
    const currentAccessId = $accessProfile(this.store).getCurrentAccessId()

    this.myProfile = this.getMyProfileInstance(currentAccessId) as MyProfile
    const activityYear:ComputedRef<number> = computed(() => this.myProfile.activityYear)
    const historical:ComputedRef<Historical> = computed(() => this.myProfile.historical)

    return {
      updateMyProfile: () => this.updateMyProfile(),
      setActivityYear: (activityYear:number) => this.setActivityYear(activityYear),
      setHistorical: (historicalChoices:Array<string>) => this.setHistorical(historicalChoices),
      setHistoricalRange: (dates:Array<string>) => this.setHistoricalRange(dates),
      activityYear,
      historical
    }
  }

  /**
   * récupère l'instance MyProfile
   * @param myProfileId
   */
  private getMyProfileInstance (myProfileId:any): Item<Model> {
    return repositoryHelper.findItemFromModel(MyProfile, parseInt(myProfileId))
  }

  /**
   * Mets à jour l'activity de my profile
   * @param activityYear
   */
  private setActivityYear (activityYear:number) {
    if (activityYear <= 0) { throw new Error('year must be positive') }

    repositoryHelper.updateStoreFromField(MyProfile, this.myProfile, activityYear, 'activityYear')
  }

  /**
   * Mets à jour l'historical de my profile
   * @param historicalChoices
   */
  private setHistorical (historicalChoices:Array<string>) {
    repositoryHelper.updateStoreFromField(MyProfile, this.myProfile, this.getHistoricalEntry(historicalChoices), 'historical')
  }

  /**
   * Mets à jour l'historical de my profile
   * @param dates
   */
  private setHistoricalRange (dates:Array<string>) {
    repositoryHelper.updateStoreFromField(MyProfile, this.myProfile, this.getHistoricalRangeEntry(dates), 'historical')
  }

  /**
   * Transform les choix de l'historique en objet JSON reconnaissable coté API
   * @param historicalChoices
   */
  private getHistoricalEntry (historicalChoices:Array<string>) {
    const historicalDefault:any = { past: false, future: false, present: false }

    for (const historicalChoice of historicalChoices) {
      historicalDefault[historicalChoice] = true
    }
    return historicalDefault
  }

  /**
   * Trasnforme le choix des période en Objet JSON reconnaissable coté API
   * @param dates
   */
  private getHistoricalRangeEntry (dates:Array<string>) {
    return { past: false, future: false, present: false, dateStart: dates[0], dateEnd: dates[1] }
  }

  /**
   * Effectue la mise à jour (coté API) de MyProfile
   */
  private async updateMyProfile (): Promise<any> {
    await this.$dataPersister.invoke({
      type: QUERY_TYPE.MODEL,
      model: MyProfile,
      id: this.myProfile.id
    })
  }
}

export const $useMyProfileUpdater = (store:AnyStore, $dataPersister:DataPersister) => new UseMyProfileUpdater(store, $dataPersister).invoke()