import ApiRequestService from "./apiRequestService";
import {AssociativeArray, FORMAT} from "./data";
import {Model, useRepo} from "pinia-orm";
import UrlBuilder from "~/services/utils/urlBuilder";
import ModelNormalizer from "~/services/data/serializer/normalizer/modelNormalizer";
import HydraDenormalizer from "~/services/data/serializer/denormalizer/hydraDenormalizer";
import ApiModel from "~/models/ApiModel";

/**
 * Entity manager: make operations on the models defined with the Pinia-Orm library
 *
 * @see https://pinia-orm.codedredd.de/
 */
class EntityManager  {
    private apiRequestService: ApiRequestService;

    public constructor(apiRequestService: ApiRequestService) {
        this.apiRequestService = apiRequestService
    }

    public getRepository(model: typeof Model) {
        return useRepo(model)
    }

    /**
     * Fetch one entity by its id, save it to the store and returns it
     * @param model
     * @param id
     */
    public async fetch(model: typeof ApiModel, id: number) {

        const url = UrlBuilder.concat('api', model.entity, String(id))

        const response = await this.apiRequestService.get(url)

        // deserialize the response
        const entity = await HydraDenormalizer.denormalize(response)

        // Save data into the store
        const repository = this.getRepository(model)
        repository.save(entity)

        return entity
    }

    public findBy(model: typeof ApiModel, query: AssociativeArray) {

    }

    public fetchAll(model: typeof ApiModel) {

    }

    public async persist(model: typeof ApiModel, entity: ApiModel) {
        const data = ModelNormalizer.normalize(entity)
        let url = UrlBuilder.concat('api', model.entity)
        let response = null

        if (entity.isNew) {
            response = await this.apiRequestService.post(url, data)

        } else {
            url = UrlBuilder.concat(url, String(entity.id))
            response = await this.apiRequestService.put(url, data)
        }

        const fetchedEntity = await HydraDenormalizer.denormalize(response)

        // Save data into the store
        const repository = this.getRepository(model)
        repository.save(fetchedEntity)

        return fetchedEntity
    }

    public delete() {

    }

    public new(model: typeof ApiModel) {
        const entity = new model()
        entity.isNew = true

        // Save data into the store
        const repository = this.getRepository(model)
        repository.save(entity)

        return entity
    }

    public reset() {

    }
}

export default EntityManager