import {z} from 'zod'

export type ExchangeInstance = 'event_contract' | 'margined';

export type IntraExchangeInstanceTransferRequest = {client_transfer_id?: string | undefined, source: ExchangeInstance, destination: ExchangeInstance, amount: number, source_exchange_shard?: number | undefined, destination_exchange_shard?: number | undefined, source_subaccount?: number | undefined, destination_subaccount?: number | undefined};

export type CreateApiPortfolioIntraExchangeInstanceTransferArgs = {body: IntraExchangeInstanceTransferRequest};

export type CreateApiPortfolioIntraExchangeInstanceTransferOptions = {baseUrl?: string | undefined, kalshiAccessKey?: string | undefined, kalshiAccessSignature?: string | undefined, kalshiAccessTimestamp?: string | undefined, fetch?: typeof fetch | undefined};

export const intraExchangeInstanceTransferResponse = z.object({transfer_id: 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
};

/**
 * Intra Account Transfer
 * 
 * POST /portfolio/intra_exchange_instance_transfer
 */
export const createApiPortfolioIntraExchangeInstanceTransfer = async (args: CreateApiPortfolioIntraExchangeInstanceTransferArgs, options?: CreateApiPortfolioIntraExchangeInstanceTransferOptions) => {
const {baseUrl = "https://external-api.kalshi.com/trade-api/v2", fetch: fetchFn = fetch, kalshiAccessKey, kalshiAccessSignature, kalshiAccessTimestamp} = options ?? {}

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

if (kalshiAccessKey !== undefined) headers.set("KALSHI-ACCESS-KEY", kalshiAccessKey)
if (kalshiAccessSignature !== undefined) headers.set("KALSHI-ACCESS-SIGNATURE", kalshiAccessSignature)
if (kalshiAccessTimestamp !== undefined) headers.set("KALSHI-ACCESS-TIMESTAMP", kalshiAccessTimestamp)

const url = `${baseUrl.replace(/\/+$/, '')}/portfolio/intra_exchange_instance_transfer${query.size > 0 ? `?${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(intraExchangeInstanceTransferResponse, await res.json())
};