Javascript 分解复杂的数据 struct 并分配产品名称

我有下面data个对象，其中包含有关products、customers和purchases的信息.

const data = {
  products: [
    {
      id: "p01",
      name: "Bike Insurance",
    },
    {
      id: "p02",
      name: "Car Insurance",
    },
    {
      id: "p03",
      name: "Home Insurance",
    },
    {
      id: "p04",
      name: "Pet Insurance",
    },
  ],
  customers: [
    { id: "c01", firstname: "Rachel", lastname: "Jane" },
    { id: "c02", firstname: "Leilah", lastname: "Mandi" },
    { id: "c03", firstname: "Campbell", lastname: "Kendall" },
    { id: "c04", firstname: "Madonna", lastname: "Sammie" },
  ],
  purchases: [
    {
      customerId: "c01",
      purchases: [
        {
          productId: "p02",
          purchasedAt: "2021-08-03T00:00:00.000Z",
        },
        {
          productId: "p02",
          purchasedAt: "2021-08-04T00:00:00.000Z",
        },
        {
          productId: "p01",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
        {
          productId: "p01",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
      ],
    },
    {
      customerId: "c03",
      purchases: [
        {
          productId: "p04",
          purchasedAt: "2021-08-03T00:00:00.000Z",
        },
        {
          productId: "p04",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
        {
          productId: "p03",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
        {
          productId: "p01",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
      ],
    },
    {
      customerId: "c02",
      purchases: [
        {
          productId: "p01",
          purchasedAt: "2021-09-12T00:00:00.000Z",
        },
      ],
    },
  ],
};

到目前为止，我已经使用以下代码过滤了进行了购买的客户:

const customersWhoPurchased = data["customers"].filter((c) =>
  data["purchases"].find((p) => p.customerId === c.id)
)

所以这customersWhoPurchased个现在看起来是这样的:

[ { id: 'c01', firstname: 'Rachel', lastname: 'Jane' },
  { id: 'c02', firstname: 'Leilah', lastname: 'Mandi' },
  { id: 'c03', firstname: 'Campbell', lastname: 'Kendall' } ]

我现在想要实现的是判断data对象中每个客户的购买，判断purchases.purchases数组中的productId并将其与products匹配，然后返回客户购买的每个产品的name，并将它们添加到customersWhoPurchased数组中的附加键值对中，值是每个产品名称的array.所以最终的结果应该是这样的.

customers: [
  { id: "c01", firstname: "Rachel", lastname: "Jane", productNames: ['Bike Insurance', 'Car Insurance'] },
  { id: "c02", firstname: "Leilah", lastname: "Mandi", productNames: ['Bike Insurance'] },
  { id: "c03", firstname: "Campbell", lastname: "Kendall", productNames: ['Bike Insurance', 'Home Insurance', 'Pet Insurance'] },
],

希望这对我在这里努力实现的目标是有意义的.

最棒的不仅是解决方案，而且是关于你如何解决问题的解释/理论.我真的在努力提高关于复杂对象的问题解决能力，所以这里的任何帮助都会有很大帮助.