import {z} from 'zod'

export type UUID = string;

export type CurrencyCode = 'EUR' | 'USD' | 'GBP' | 'CHF' | 'JPY' | 'SGD' | 'SEK' | 'NOK' | 'DKK' | 'PLN' | 'HUF' | 'CZK';

export type LocaleLanguage = 'en' | 'es' | 'fr' | 'it' | 'de' | 'nl';

export type GetApiV0DepositOrdersSubscriptionFormArgs = {accountId: UUID, shareClassId: UUID, amount: string, currency: CurrencyCode, locale: LocaleLanguage};

export type GetApiV0DepositOrdersSubscriptionFormOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const getApiV0DepositOrdersSubscriptionFormResponse = 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
};

/**
 * Get a subscription form to support placing a deposit order
 * 
 * GET /v0/deposit-orders/subscription-form/
 */
export const getApiV0DepositOrdersSubscriptionForm = async (args: GetApiV0DepositOrdersSubscriptionFormArgs, options?: GetApiV0DepositOrdersSubscriptionFormOptions) => {
const {baseUrl = "https://distributor-api.spiko.io", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.accountId != null) query.append("accountId", String(args.accountId))
if (args.shareClassId != null) query.append("shareClassId", String(args.shareClassId))
if (args.amount != null) query.append("amount", String(args.amount))
if (args.currency != null) query.append("currency", String(args.currency))
if (args.locale != null) query.append("locale", String(args.locale))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v0/deposit-orders/subscription-form/${query.size > 0 ? `?${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(getApiV0DepositOrdersSubscriptionFormResponse, await res.json())
};