import {z} from 'zod'

export type CreateApiCustomsGuaranteesGrnBalanceArgs = {Accept: 'application/vnd.hmrc.2.0+json', 'Content-Type': 'application/json', grn: string, body: {accessCode: string}};

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

export const createApiCustomsGuaranteesGrnBalanceResponse = z.object({_links: z.record(z.string(), z.object({href: z.string()})).optional(), _embedded: z.record(z.string(), z.object({_links: z.object({self: z.object({href: z.string()}).optional()}).optional(), _embedded: z.record(z.string(), z.unknown()).optional()})).optional(), balance: z.number(), currency: z.string().optional()});

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
};

/**
 * Get a balance
 * 
 * POST /customs/guarantees/{grn}/balance
 */
export const createApiCustomsGuaranteesGrnBalance = async (args: CreateApiCustomsGuaranteesGrnBalanceArgs, options?: CreateApiCustomsGuaranteesGrnBalanceOptions) => {
const {baseUrl = "https://test-api.service.hmrc.gov.uk", fetch: fetchFn = fetch, userRestricted} = options ?? {}

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

if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))
if (userRestricted !== undefined) headers.set('authorization', `Bearer ${userRestricted}`)

const url = `${baseUrl.replace(/\/+$/, '')}/customs/guarantees/${encodeURIComponent(String(args.grn))}/balance${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(createApiCustomsGuaranteesGrnBalanceResponse, await res.json())
};