504fb1bfa1
no-issue This adds the concept of "Value Objects" to an Offers properties, allowing us to move validation out and ensure that an Offer will only ever have valid properties, without having to duplicate checks - or leave them to the persistent layer. This means we can fail early, as well as write unit tests for all of our validation.
109 lines
3.3 KiB
JavaScript
109 lines
3.3 KiB
JavaScript
const Offer = require('./domain/models/Offer');
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const OfferName = require('./domain/models/OfferName');
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const OfferCode = require('./domain/models/OfferCode');
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const OfferTitle = require('./domain/models/OfferTitle');
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const OfferDescription = require('./domain/models/OfferDescription');
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const OfferMapper = require('./OfferMapper');
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const UniqueChecker = require('./UniqueChecker');
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class OffersAPI {
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/**
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* @param {import('./OfferRepository')} repository
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*/
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constructor(repository) {
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this.repository = repository;
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}
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/**
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* @param {object} data
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* @param {string} data.id
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*
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* @returns {Promise<OfferMapper.OfferDTO>}
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*/
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async getOffer(data) {
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return this.repository.createTransaction(async (transaction) => {
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const options = {transacting: transaction};
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const offer = await this.repository.getById(data.id, options);
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return OfferMapper.toDTO(offer);
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});
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}
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/**
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* @param {object} data
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*
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* @returns {Promise<OfferMapper.OfferDTO>}
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*/
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async createOffer(data) {
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return this.repository.createTransaction(async (transaction) => {
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const options = {transacting: transaction};
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const uniqueChecker = new UniqueChecker(this.repository, transaction);
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const offer = await Offer.create(data, uniqueChecker);
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await this.repository.save(offer, options);
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return OfferMapper.toDTO(offer);
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});
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}
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/**
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* @param {object} data
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* @param {string} data.id
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* @param {string} [data.name]
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* @param {string} [data.display_title]
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* @param {string} [data.display_description]
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* @param {string} [data.code]
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*
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* @returns {Promise<OfferMapper.OfferDTO>}
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*/
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async updateOffer(data) {
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return await this.repository.createTransaction(async (transaction) => {
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const options = {transacting: transaction};
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const uniqueChecker = new UniqueChecker(this.repository, transaction);
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const offer = await this.repository.getById(data.id, options);
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if (data.name) {
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const name = OfferName.create(data.name);
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await offer.updateName(name, uniqueChecker);
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}
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if (data.code) {
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const code = OfferCode.create(data.code);
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await offer.updateCode(code, uniqueChecker);
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}
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if (data.display_title) {
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const title = OfferTitle.create(data.display_title);
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offer.displayTitle = title;
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}
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if (data.display_description) {
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const description = OfferDescription.create(data.display_description);
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offer.displayDescription = description;
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}
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await this.repository.save(offer, options);
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return OfferMapper.toDTO(offer);
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});
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}
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/**
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* @returns {Promise<OfferMapper.OfferDTO[]>}
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*/
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async listOffers() {
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return await this.repository.createTransaction(async (transaction) => {
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const options = {transacting: transaction};
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const offers = await this.repository.getAll(options);
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return offers.map(OfferMapper.toDTO);
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});
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}
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}
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module.exports = OffersAPI;
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