import {z} from 'zod'

export type OrderAddressCreate = {zip_code: string, street: string, number: string, complement?: (string | null) | undefined, district: string, city: string, state: string, country: string};

export type OrderItemCreate = {sku: string, name: string, quantity: number, unit_price: number, discount?: number | undefined, total_price: number, category?: (string | null) | undefined, metadata?: (Record<string, never> | null) | undefined};

export type OrderPaymentInput = {method: string, amount: number, installments?: number | undefined, gateway_payment_id?: (string | null) | undefined, status: 'PENDING' | 'PAID' | 'REJECTED' | 'REFUNDED'};

export type OrderTotalsCreate = {subtotal: number, shipping: number, discount: number, total: number};

export type OrderCreate = {requested_strategy_code?: (string | null) | undefined, source_store?: (string | null) | undefined, shipping_method?: (string | null) | undefined, currency?: ('BRL' | 'USD') | undefined, customer_id?: (string | null) | undefined, shipping_address?: (OrderAddressCreate | null) | undefined, billing_address?: (OrderAddressCreate | null) | undefined, items: Array<OrderItemCreate>, payments: Array<OrderPaymentInput>, totals: OrderTotalsCreate, metadata?: ({[key: string]: unknown} | null) | undefined, external_order_id: string, channel_code: string};

export type CreateApiApiV1OrdersArgs = {body: OrderCreate};

export type CreateApiApiV1OrdersOptions = {baseUrl?: string | undefined, basic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const orderCreateResponse = z.object({id: z.string(), external_order_id: z.string(), channel_id: z.string(), customer_id: z.string().nullable(), requested_strategy_code: z.string().nullable(), source_store: z.string().nullable(), shipping_method: z.string().nullable(), status: z.string(), state_machine_version_id: z.string(), state_machine_id: z.string(), currency: z.enum(["BRL", "USD"]), subtotal: z.number(), shipping: z.number(), discount: z.number(), total: z.number(), item_count: z.number(), created_at: z.string(), updated_at: 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
};

/**
 * Create a channel order (synchronous)
 * 
 * POST /api/v1/orders
 * 
 * Also accepts auth: bearer
 */
export const createApiApiV1Orders = async (args: CreateApiApiV1OrdersArgs, options?: CreateApiApiV1OrdersOptions) => {
const {baseUrl = "https://oms-api.tenant.krzlabs.io", fetch: fetchFn = fetch, basic} = options ?? {}

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

if (basic !== undefined) headers.set('authorization', `Basic ${btoa(`${basic.username}:${basic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/orders${query.size > 0 ? `?${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(orderCreateResponse, await res.json())
};