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

/**
 * @category Use/updater
 * @class UseActivityYearUpdater
 * Use Classe pour la mise à jour de l'activity year
 */
export class UseActivityYearUpdater{
  private store!:AnyStore
  private $dataPersister!:DataPersister

  constructor(store:AnyStore, $dataPersister:DataPersister){
    this.store = store
    this.$dataPersister = $dataPersister
  }
  /**
   * Composition function
   */
  public invoke(): AnyJson{
    const activityYear = computed(()=>this.store.state.profile.access.activityYear)

    return {
      updater: (activityYear:number) => this.update(activityYear),
      activityYear
    }
  }

  /**
   * Mets à jour le store, puis créer une instance de Access avec la nouvelle activityYear et là met à jour
   * @param activityYear
   */
  private async update(activityYear:number): Promise<any>{
    if(activityYear <= 0)
      throw new Error('year must be positive')

    this.store.commit('profile/access/setActivityYear', activityYear)

    const accessInstance:Access = this.createNewAccessInstance(this.store.state.profile.access.id, this.store.state.profile.access.activityYear)

    await this.$dataPersister.invoke({
      type: QUERY_TYPE.MODEL,
      model: Access,
      id: accessInstance.id
    })
  }

  /**
   * Créer une nouvelle instance d'Access (== nouveau state dans le store) avec une date d'activité et la retourne
   * @param accessId
   * @param activityYear
   */
  private createNewAccessInstance(accessId: number, activityYear:number): Access{
    if(accessId <= 0 || activityYear <= 0)
      throw new Error('id and activity year must be positive')

    const accessInstance = repositoryHelper.createNewModelInstance(Access) as Access
    accessInstance.id = accessId
    accessInstance.activityYear = activityYear
    repositoryHelper.persist(Access, accessInstance)
    return accessInstance
  }
}

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