'use strict';

import angular from 'angular';
import angularHalModule from 'angular-hal';
import PatchService from 'patch.service';

angular
  .module('my-app', [
    angularHalModule,
    '...',
  ])

  '...'

  .service('$patch', PatchService)

  '...'
;

'use strict';

import { createPatch } from 'rfc6902';

export default class PatchService {
  /**
   * Create Patch
   * @param  {Resource} originalResource
   * @param  {Object}   modified
   * @return {Patch[]}
   */
  diff(originalResource, modified) {
    return createPatch(originalResource, modified);
  }
  /**
   * Save Patch
   * @param  {Resource} originalResource
   * @param  {Object}   modified
   * @return {Promise}
   */
  save(originalResource, modified) {
    return originalResource.$request()
      .$patch('self', {}, this.diff(originalResource, modified));
  }
}