entity.js

'use strict';

const assert = require('assert');

const NamedObjectMap = require('./named_object_map');
const Serializable = require('./serializable');
const { identical } = require('./mappers');

const Category = require('./category');
const FormValue = require('./form_value');

class Entity extends Serializable {
  get formValuesMap() {
    return NamedObjectMap.fromArray(
      [...this.retrieveAttachableFormsMap().values()].map((form) => {
        return new FormValue(form, this.document[form.name] || false);
      })
    );
  }

  retrieveAttachableFormsMap(onlyMissing = false) {
    return NamedObjectMap.fromArray(this.category.forms.filter(form => {
      if (onlyMissing && Object.hasOwnProperty.call(this.document, form.name)) {
        return false;
      }

      return form.isAttachable(this.document);
    }));
  }

  _assign(document) {
    const availableFormsMap = this.retrieveAttachableFormsMap(true);
    const updatedForms = [];

    for (const form of availableFormsMap.values()) {
      if (Object.hasOwnProperty.call(document, form.name)) {
        const formValue = new FormValue(form, document[form.name]);
        if (!formValue.isValid) {
          console.error(formValue);
          throw new Error('invalid form value');
        }
        this.document[form.name] = formValue.value;
        updatedForms.push(form);
      }
    }

    return updatedForms;
  }

  updateDocument(document) {
    this.document = {};
    let allUpdatedForms = [];
    let updatedForms = [];
    while ((updatedForms = this._assign(document)).length > 0) {
      allUpdatedForms = allUpdatedForms.concat(updatedForms);
    }

    Object.freeze(this.document);
    return allUpdatedForms;
  }

  normalize() {
    const document = this.document;
    return this.updateDocument(document);
  }
}
Entity.primaryKey = '_id';
Entity.property('document', identical);
Entity.reference('category', Category);
Entity.property('_id', identical);
Entity.property('number', identical);
Entity.property('metadata', identical);

module.exports = Entity;