import {repositoryHelper} from "~/services/store/repository";
import {QUERY_TYPE} from "~/types/enums";
import {computed} from '@nuxtjs/composition-api'
import {accessState, AnyJson, AnyStore} from "~/types/interfaces";
import DataPersister from "~/services/dataPersister/dataPersister";
import {MyProfile} from "~/models/Access/MyProfile";

/**
 * @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{
    this.myProfile = this.createNewMyProfileInstance(this.store.state.profile.access)
    const activityYear = computed(()=>this.myProfile.activityYear)
    const historical = computed(()=>this.myProfile.historical)

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

  /**
   * Créer une nouvelle instance MyProfile
   * @param myProfile
   */
  private createNewMyProfileInstance(myProfile:accessState): MyProfile{
    const myProfileInstance = repositoryHelper.createNewModelInstance(MyProfile) as MyProfile
    myProfileInstance.id = myProfile.id
    myProfileInstance.activityYear = myProfile.activityYear
    myProfileInstance.historical = myProfile.historical
    repositoryHelper.persist(MyProfile, myProfileInstance)
    return myProfileInstance
  }
  /**
   * 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')
  }

  /**
   * 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;
  }

  /**
   * 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()