import {z} from 'zod'

export type GetApiV1ShippingRatesShippingRateTokenArgs = {expand?: Array<string> | undefined, shipping_rate_token: string, body: Record<string, never>};

export type GetApiV1ShippingRatesShippingRateTokenOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const shippingRateDeliveryEstimateBound = z.object({unit: z.enum(["business_day", "day", "hour", "month", "week"]), value: z.number().int()});

export const shippingRateDeliveryEstimate = z.object({maximum: shippingRateDeliveryEstimateBound.nullable().optional(), minimum: shippingRateDeliveryEstimateBound.nullable().optional()});

export const shippingRateCurrencyOption = z.object({amount: z.number().int(), tax_behavior: z.enum(["exclusive", "inclusive", "unspecified"])});

export const shippingRateFixedAmount = z.object({amount: z.number().int(), currency: z.string(), currency_options: z.record(z.string(), shippingRateCurrencyOption).optional()});

export const taxCodeRequirements = z.object({performance_location: z.enum(["optional", "required"])});

export const taxCode = z.object({description: z.string().max(5000), id: z.string().max(5000), name: z.string().max(5000), object: z.literal("tax_code"), requirements: taxCodeRequirements.nullable().optional()});

export const shippingRate = z.object({active: z.boolean(), created: z.number().int(), delivery_estimate: shippingRateDeliveryEstimate.nullable().optional(), display_name: z.string().max(5000).nullable().optional(), fixed_amount: shippingRateFixedAmount.optional(), id: z.string().max(5000), livemode: z.boolean(), metadata: z.record(z.string(), z.string().max(500)), object: z.literal("shipping_rate"), tax_behavior: z.enum(["exclusive", "inclusive", "unspecified"]).nullable().optional(), tax_code: z.union([z.string().max(5000), taxCode]).nullable().optional(), type: z.literal("fixed_amount")});

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
};

/**
 * Retrieve a shipping rate
 * 
 * GET /v1/shipping_rates/{shipping_rate_token}
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiV1ShippingRatesShippingRateToken = async (args: GetApiV1ShippingRatesShippingRateTokenArgs, options?: GetApiV1ShippingRatesShippingRateTokenOptions) => {
const {baseUrl = "https://api.stripe.com", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

for (const item of args.expand ?? []) query.append("expand", String(item))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/shipping_rates/${encodeURIComponent(String(args.shipping_rate_token))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers, body: new URLSearchParams(Object.entries(args.body).flatMap(([key, value]) => (value == null ? [] : [[key, String(value)]])))})

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

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