How to use

products

function

in

Array

function isSiteWithProducts( site: null | object ): site is SiteWithProducts {
  return ( site as SiteWithProducts ).products !== undefined;
}

export function getTotal(state = []) {
 // TO DO return the total of product in the cart

 let total = 0;

 if (state.cart.addedIds && state.cart.addedIds.length > 0) {
  state.cart.addedIds.map((id, index) => {
    total = total + state.products.byId[id].price * state.cart.quantityById[id];
   return total;
  });
 }  

 return total.toString();
}

describe("Catalogue Service", function() {
  it("should return default products for a location with no additional products", function() {
    var catalogueService = require('../../lib/Services/CatalogueService'),
      retrievedProducts = catalogueService.getProducts('-1');

    assert.equal(retrievedProducts.categories.length, 1);
    assert.equal(retrievedProducts.categories[0].title, "News");
  });

  it("should return an enriched products list for a location with additional products", function() {
    var catalogueService = require('../../lib/Services/CatalogueService'),
      retrievedProducts = catalogueService.getProducts('1');

    assert.equal(retrievedProducts.categories.length, 2);
    assert.equal(retrievedProducts.categories[0].title, "News");
    assert.equal(retrievedProducts.categories[1].title, "Sports");
    assert.equal(retrievedProducts.categories[1].products.length, 2);
    assert.equal(retrievedProducts.categories[1].products[0].title, 'Arsenal TV');
    assert.equal(retrievedProducts.categories[1].products[1].title, 'Chelsea TV');
  });
});

// Reducers for corresponding Actions
export function getCartProducts(state = []) {
 // TO DO return products of the car
 let products = [];

 if (state.cart.addedIds && state.cart.addedIds.length > 0) {
  state.cart.addedIds.map((id, index) => {
   products.push({
    ...state.products.byId[id],
    quantity: state.cart.quantityById[id]
   });
   return products;
  });
 }

 return products;
}