import {z} from 'zod'

export type CreateApiSunV1CartArgs = {body: {orderId: string, postbackUrl: string, returnUrl: string, installments: number, shippingValue: number, items: Array<{productId: string, description: string, price: {value: number, currency: 'BRL'}, quantity: number}>, customer: {email: string, name: string, cellphone: string, document: string, address: {street: string, number: string, neighborhood: string, complement: string, postalCode: string, state: string}}}};

export type CreateApiSunV1CartOptions = {baseUrl?: string | undefined, eduzzAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiSunV1CartResponse = z.object({id: z.string(), key: z.string(), orderId: z.string(), paymentUrl: z.string(), postbackUrl: z.string(), returnUrl: z.string(), installments: z.number(), items: z.array(z.object({productId: z.string(), description: z.string(), price: z.object({value: z.number(), currency: z.literal("BRL")}), quantity: z.number()})), customer: z.object({email: z.string(), name: z.string(), cellphone: z.string(), document: z.string(), address: z.object({street: z.string(), number: z.string(), neighborhood: z.string(), complement: z.string(), postalCode: z.string(), state: z.string()})})});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * O endpoint permite a criação de um carrinho de compras no checkout, onde vários itens são adicionados e interpretados como um único item, com seus valores somados e exibidos como um total consolidado, é possível criar um carrinho contendo apenas produtos de uma mesma conta.
 * 
 * POST /sun/v1/cart
 */
export const createApiSunV1Cart = async (args: CreateApiSunV1CartArgs, options?: CreateApiSunV1CartOptions) => {
const {baseUrl = "https://api.eduzz.com", fetch: fetchFn = fetch, eduzzAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (eduzzAuth !== undefined) headers.set('authorization', `Bearer ${eduzzAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/sun/v1/cart${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiSunV1CartResponse, await res.json())
};