app_vue2/services/dataProvider/dataProvider.ts

import {Store} from "vuex";
import {Rest} from "~/services/queries/rest";
import {Model} from "@/models/Model"

class DataProvider{
  private store: Store<any>
  private $rest: Rest

  constructor(store:Store<any>, $rest: Rest) {
    this.store = store
    this.$rest = $rest
  }

  public async getItem(model: typeof Model, id: number){
    const repository = this.store.$repo(model);
    const entity = repository.getModel().$entity();

    const response = await this.$rest.getItem(`/api/${entity}`, id)
    if(response)
      repository.insert(response);
  }

  public async getCollection(model: typeof Model){
    const repository = this.store.$repo(model);
    const entity = repository.getModel().$entity();

    const response = await this.$rest.getCollection(`/api/${entity}`)
    if(response)
      repository.insert(response);
  }

  public async getSubResourceCollection(root_model: typeof Model, root_id: number, model: typeof Model){
    const root_repository = this.store.$repo(root_model);
    const root_entity = root_repository.getModel().$entity();

    const repository = this.store.$repo(model);
    const entity = repository.getModel().$entity();

    const response = await this.$rest.getCollection(`/api/${root_entity}/${root_id}/${entity}`)
    if(response){
      repository.insert(response)
      return repository.all();
    }
    return [];
  }

  public async getSubResourceItem(root_model: typeof Model, root_id: number, model: typeof Model, id: number) {
    const root_repository = this.store.$repo(root_model);
    const root_entity = root_repository.getModel().$entity();

    const repository = this.store.$repo(model);
    const entity = repository.getModel().$entity();

    const response = await this.$rest.getItem(`/api/${root_entity}/${root_id}/${entity}`, id)
    if(response)
      repository.insert(response);
  }
}

export const $dataProvider = (store:Store<any>, $rest:Rest) => new DataProvider(store, $rest);