import {z} from 'zod'

export type GetApiV2EcommerceOrdersArgs = {fromDate?: string | undefined, select?: number | undefined, skip?: number | undefined};

export type GetApiV2EcommerceOrdersOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const apiOrderItem = z.object({sku: z.string().nullable().optional(), name: z.string().nullable().optional(), price: z.number().optional(), quantity: z.number().optional(), imagePath: z.string().nullable().optional()});

export const apiOrderAddress = z.object({address1: z.string().nullable().optional(), address2: z.string().nullable().optional(), city: z.string().nullable().optional(), country: z.string().nullable().optional(), postCode: z.string().nullable().optional()});

export const apiOrder = z.object({id: z.string().nullable().optional(), email: z.string().nullable().optional(), contactId: z.string().nullable().optional(), items: z.array(apiOrderItem).nullable().optional(), orderTotal: z.number().optional(), orderDate: z.string().optional(), subtotal: z.number().optional(), payment: z.string().nullable().optional(), status: z.string().nullable().optional(), discount: z.number().optional(), deliveryTotal: z.number().optional(), deliveryMethod: z.string().nullable().optional(), deliveryAddress: apiOrderAddress.nullable().optional(), currency: z.string().nullable().optional(), billingAddress: apiOrderAddress.nullable().optional(), baseSubtotalInclTax: z.number().optional(), couponCode: z.string().nullable().optional(), quoteId: z.string().nullable().optional(), retailValue: z.number().optional()});

export const getApiV2EcommerceOrdersResponse = z.array(apiOrder);

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
};

/**
 * Gets a list of all orders since a date.
 * 
 * GET /v2/ecommerce/orders
 */
export const getApiV2EcommerceOrders = async (args: GetApiV2EcommerceOrdersArgs, options?: GetApiV2EcommerceOrdersOptions) => {
const {baseUrl = "https://api.dotdigital.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.fromDate != null) query.append("fromDate", String(args.fromDate))
if (args.select != null) query.append("select", String(args.select))
if (args.skip != null) query.append("skip", String(args.skip))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/ecommerce/orders${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

return validateResponse(getApiV2EcommerceOrdersResponse, await res.json())
};