From eb2fd80eaded8689cae3589d8cd340cae130e5f9 Mon Sep 17 00:00:00 2001
From: Luis Alvarez <luis@vercel.com>
Date: Tue, 18 May 2021 08:39:36 -0500
Subject: [PATCH] Added customer endpoint

---
 .../api/customer/get-logged-in-customer.ts    | 59 +++++++++++++++++++
 framework/bigcommerce/api/customer/index.ts   | 10 ++++
 framework/bigcommerce/api/index.ts            |  7 ++-
 framework/bigcommerce/types/customer.ts       |  5 ++
 framework/commerce/api/endpoints/cart.ts      | 10 ++--
 framework/commerce/api/endpoints/customer.ts  | 35 +++++++++++
 framework/commerce/api/index.ts               |  3 +-
 framework/commerce/types/customer.ts          | 23 ++++++++
 pages/api/{bigcommerce => }/cart.ts           |  0
 pages/api/customer.ts                         |  8 +++
 10 files changed, 151 insertions(+), 9 deletions(-)
 create mode 100644 framework/bigcommerce/api/customer/get-logged-in-customer.ts
 create mode 100644 framework/bigcommerce/api/customer/index.ts
 create mode 100644 framework/bigcommerce/types/customer.ts
 create mode 100644 framework/commerce/api/endpoints/customer.ts
 create mode 100644 framework/commerce/types/customer.ts
 rename pages/api/{bigcommerce => }/cart.ts (100%)
 create mode 100644 pages/api/customer.ts

diff --git a/framework/bigcommerce/api/customer/get-logged-in-customer.ts b/framework/bigcommerce/api/customer/get-logged-in-customer.ts
new file mode 100644
index 000000000..f35b2d135
--- /dev/null
+++ b/framework/bigcommerce/api/customer/get-logged-in-customer.ts
@@ -0,0 +1,59 @@
+import type { GetLoggedInCustomerQuery } from '../../schema'
+import type { CustomerEndpoint } from '.'
+
+export const getLoggedInCustomerQuery = /* GraphQL */ `
+  query getLoggedInCustomer {
+    customer {
+      entityId
+      firstName
+      lastName
+      email
+      company
+      customerGroupId
+      notes
+      phone
+      addressCount
+      attributeCount
+      storeCredit {
+        value
+        currencyCode
+      }
+    }
+  }
+`
+
+export type Customer = NonNullable<GetLoggedInCustomerQuery['customer']>
+
+const getLoggedInCustomer: CustomerEndpoint['operations']['getLoggedInCustomer'] = async ({
+  req,
+  res,
+  config,
+}) => {
+  const token = req.cookies[config.customerCookie]
+
+  if (token) {
+    const { data } = await config.fetch<GetLoggedInCustomerQuery>(
+      getLoggedInCustomerQuery,
+      undefined,
+      {
+        headers: {
+          cookie: `${config.customerCookie}=${token}`,
+        },
+      }
+    )
+    const { customer } = data
+
+    if (!customer) {
+      return res.status(400).json({
+        data: null,
+        errors: [{ message: 'Customer not found', code: 'not_found' }],
+      })
+    }
+
+    return res.status(200).json({ data: { customer } })
+  }
+
+  res.status(200).json({ data: null })
+}
+
+export default getLoggedInCustomer
diff --git a/framework/bigcommerce/api/customer/index.ts b/framework/bigcommerce/api/customer/index.ts
new file mode 100644
index 000000000..47832b8a0
--- /dev/null
+++ b/framework/bigcommerce/api/customer/index.ts
@@ -0,0 +1,10 @@
+import type { GetAPISchema } from '@commerce/api'
+import type { CustomerSchema } from '../../types/customer'
+import type { BigcommerceAPI } from '..'
+import getLoggedInCustomer from './get-logged-in-customer'
+
+export type CustomerAPI = GetAPISchema<BigcommerceAPI, CustomerSchema>
+
+export type CustomerEndpoint = CustomerAPI['endpoint']
+
+export const operations = { getLoggedInCustomer }
diff --git a/framework/bigcommerce/api/index.ts b/framework/bigcommerce/api/index.ts
index 50ea960b7..e30517171 100644
--- a/framework/bigcommerce/api/index.ts
+++ b/framework/bigcommerce/api/index.ts
@@ -10,6 +10,7 @@ import fetchGraphqlApi from './utils/fetch-graphql-api'
 import fetchStoreApi from './utils/fetch-store-api'
 
 import type { CartAPI } from './cart'
+import type { CustomerAPI } from './customer'
 import login from './operations/login'
 
 export interface BigcommerceConfig extends CommerceAPIConfig {
@@ -111,14 +112,14 @@ export const provider = {
 
 export type Provider = typeof provider
 
-export type APIs = CartAPI
+export type APIs = CartAPI | CustomerAPI
 
 export type BigcommerceAPI<P extends Provider = Provider> = CommerceAPI<P>
 
 export function getCommerceApi<P extends Provider>(
   customProvider: P = provider as any
-): BigcommerceAPI<P> {
-  const api = commerceApi(customProvider)
+) {
+  const api: BigcommerceAPI<P> = commerceApi(customProvider)
 
   return Object.assign(api, {
     endpoint<E extends APIs>(
diff --git a/framework/bigcommerce/types/customer.ts b/framework/bigcommerce/types/customer.ts
new file mode 100644
index 000000000..427bc0b03
--- /dev/null
+++ b/framework/bigcommerce/types/customer.ts
@@ -0,0 +1,5 @@
+import * as Core from '@commerce/types/customer'
+
+export * from '@commerce/types/customer'
+
+export type CustomerSchema = Core.CustomerSchema
diff --git a/framework/commerce/api/endpoints/cart.ts b/framework/commerce/api/endpoints/cart.ts
index 6b98335ca..1f1c734ce 100644
--- a/framework/commerce/api/endpoints/cart.ts
+++ b/framework/commerce/api/endpoints/cart.ts
@@ -3,9 +3,10 @@ import { CommerceAPIError } from '../utils/errors'
 import isAllowedOperation from '../utils/is-allowed-operation'
 import type { GetAPISchema } from '..'
 
-const cartApi: GetAPISchema<any, CartSchema>['endpoint']['handler'] = async (
-  ctx
-) => {
+const cartEndpoint: GetAPISchema<
+  any,
+  CartSchema
+>['endpoint']['handler'] = async (ctx) => {
   const { req, res, operations, config } = ctx
 
   if (
@@ -19,7 +20,6 @@ const cartApi: GetAPISchema<any, CartSchema>['endpoint']['handler'] = async (
     return
   }
 
-  const body2 = req.body
   const { cookies } = req
   const cartId = cookies[config.cartCookie]
 
@@ -59,4 +59,4 @@ const cartApi: GetAPISchema<any, CartSchema>['endpoint']['handler'] = async (
   }
 }
 
-export default cartApi
+export default cartEndpoint
diff --git a/framework/commerce/api/endpoints/customer.ts b/framework/commerce/api/endpoints/customer.ts
new file mode 100644
index 000000000..107650770
--- /dev/null
+++ b/framework/commerce/api/endpoints/customer.ts
@@ -0,0 +1,35 @@
+import type { CustomerSchema } from '../../types/customer'
+import { CommerceAPIError } from '../utils/errors'
+import isAllowedOperation from '../utils/is-allowed-operation'
+import type { GetAPISchema } from '..'
+
+const customerEndpoint: GetAPISchema<
+  any,
+  CustomerSchema
+>['endpoint']['handler'] = async (ctx) => {
+  const { req, res, operations } = ctx
+
+  if (
+    !isAllowedOperation(req, res, {
+      GET: operations['getLoggedInCustomer'],
+    })
+  ) {
+    return
+  }
+
+  try {
+    const body = null
+    return await operations['getLoggedInCustomer']({ ...ctx, body })
+  } catch (error) {
+    console.error(error)
+
+    const message =
+      error instanceof CommerceAPIError
+        ? 'An unexpected error ocurred with the Commerce API'
+        : 'An unexpected error ocurred'
+
+    res.status(500).json({ data: null, errors: [{ message }] })
+  }
+}
+
+export default customerEndpoint
diff --git a/framework/commerce/api/index.ts b/framework/commerce/api/index.ts
index e656e1872..f076657c0 100644
--- a/framework/commerce/api/index.ts
+++ b/framework/commerce/api/index.ts
@@ -2,6 +2,7 @@ import type { NextApiHandler } from 'next'
 import type { RequestInit, Response } from '@vercel/fetch'
 import type { APIEndpoint, APIHandler } from './utils/types'
 import type { CartSchema } from '../types/cart'
+import type { CustomerSchema } from '../types/customer'
 import {
   defaultOperations,
   OPERATIONS,
@@ -9,7 +10,7 @@ import {
   APIOperations,
 } from './operations'
 
-export type APISchemas = CartSchema
+export type APISchemas = CartSchema | CustomerSchema
 
 export type GetAPISchema<
   C extends CommerceAPI<any>,
diff --git a/framework/commerce/types/customer.ts b/framework/commerce/types/customer.ts
new file mode 100644
index 000000000..4f603ca4f
--- /dev/null
+++ b/framework/commerce/types/customer.ts
@@ -0,0 +1,23 @@
+// TODO: define this type
+export type Customer = any
+
+export type CustomerTypes = {
+  customer: Customer
+}
+
+export type CustomerSchema<T extends CustomerTypes = CustomerTypes> = {
+  endpoint: {
+    options: {}
+    operations: {
+      getLoggedInCustomer: {
+        data: { customer: T['customer'] } | null
+      }
+    }
+  }
+}
+
+// export type CustomerOperations<T extends CustomerTypes = CustomerTypes> = {
+//   getLoggedInCustomer: GetCartOperation<T>
+// }
+
+// export type GetLoggedInCustomerOperation = {}
diff --git a/pages/api/bigcommerce/cart.ts b/pages/api/cart.ts
similarity index 100%
rename from pages/api/bigcommerce/cart.ts
rename to pages/api/cart.ts
diff --git a/pages/api/customer.ts b/pages/api/customer.ts
new file mode 100644
index 000000000..ba3e627b1
--- /dev/null
+++ b/pages/api/customer.ts
@@ -0,0 +1,8 @@
+import customer from '@commerce/api/endpoints/customer'
+import { CustomerAPI, operations } from '@framework/api/customer'
+import commerce from '@lib/api/commerce'
+
+export default commerce.endpoint({
+  handler: customer as CustomerAPI['endpoint']['handler'],
+  operations,
+})