import {z} from 'zod'

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

export const fiatAccountType = z.enum(["BLINC", "BLINC_TEST", "CROSSRIVER", "CROSSRIVER_TEST", "CUSTOMERSBANK", "CUSTOMERSBANK_TEST", "FIFTHTHIRD", "FIFTHTHIRD_TEST", "KINGDOM_BANK", "KINGDOM_BANK_TESTNET", "LYNQ", "LYNQ_DEV", "LYNQ_QA", "LYNQ_UAT", "N3XT", "N3XT_ALPHA", "N3XT_BETA", "N3XT_OMEGA", "SYGNUM_CONNECT", "SYGNUM_CONNECT_STAGING", "TRANSFERO", "TRANSFERO_STAGING", "ZENUS_DEV", "OTHER"]);

export const fiatAsset = z.object({id: z.string().optional(), balance: z.string().optional()});

export const fiatAccount = z.object({id: z.string().optional(), type: fiatAccountType.optional(), name: z.string().optional(), address: z.string().nullable().optional(), assets: z.array(fiatAsset).optional()});

export const getFiatAccountsResponse = z.array(fiatAccount);

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 fiat accounts
 * 
 * GET /fiat_accounts
 */
export const getApiFiatAccounts = async (options?: GetApiFiatAccountsOptions) => {
const {baseUrl = "https://api.fireblocks.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

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