import {z} from 'zod'

export type GetApiOpenBankingSupportedBanksArgs = {offset?: number | undefined, limit?: number | undefined};

export type GetApiOpenBankingSupportedBanksOptions = {baseUrl?: string | undefined, token?: string | undefined, fetch?: typeof fetch | undefined};

export const isoCurrency = z.string().min(3).max(3);

export const openBankingSupportedBank = z.object({bank_id: z.string(), logo_url: z.string().optional(), icon_url: z.string().optional(), display_name: z.string(), country_code_2_alpha: z.string(), bic_code: z.string().optional(), supported_currencies: z.array(isoCurrency).optional(), supported_products: z.array(z.string()).optional()}).and(z.record(z.string(), z.unknown()));

export const openBankingSupportedBankListPaged = z.object({meta: z.object({count: z.number().int().optional(), offset: z.number().int().optional(), limit: z.number().int().optional(), total: z.number().int().optional(), links: z.array(z.object({rel: z.enum(["self", "first", "last", "prev", "next"]).optional(), href: z.string().optional(), title: z.string().optional()})).optional()}).optional(), data: z.array(openBankingSupportedBank).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
};

/**
 * List supported banks
 * 
 * GET /open-banking/supported-banks
 */
export const getApiOpenBankingSupportedBanks = async (args: GetApiOpenBankingSupportedBanksArgs, options?: GetApiOpenBankingSupportedBanksOptions) => {
const {baseUrl = "https://test-api.acquired.com/v1", fetch: fetchFn = fetch, token} = options ?? {}

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

if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (token !== undefined) headers.set('authorization', `Bearer ${token}`)

const url = `${baseUrl.replace(/\/+$/, '')}/open-banking/supported-banks${query.size > 0 ? `?${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(openBankingSupportedBankListPaged, await res.json())
};