import {z} from 'zod'

export type GetApiV2BalanceArgs = {nanoid: string, currencies?: (Array<'BTC' | 'CAD' | 'EUR' | 'GBP' | 'USD' | 'USDC' | 'USDT'>) | undefined};

export type GetApiV2BalanceOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV2BalanceResponse = z.object({success: z.literal(true), data: z.object({rise_account_address: z.string(), balances: z.array(z.object({currency: z.enum(["AED", "AUD", "CAD", "CHF", "DKK", "EUR", "GBP", "HKD", "JPY", "MXN", "NOK", "PHP", "PLN", "RON", "SEK", "SGD", "USD", "ZAR", "CZK", "NZD", "COP"]), balance_cents: 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 entity balance
 * 
 * GET /v2/balance
 */
export const getApiV2Balance = async (args: GetApiV2BalanceArgs, options?: GetApiV2BalanceOptions) => {
const {baseUrl = "https://b2b-api.dev-riseworks.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.nanoid != null) query.append("nanoid", String(args.nanoid))
for (const item of args.currencies ?? []) query.append("currencies", String(item))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/balance${query.size > 0 ? `?${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(getApiV2BalanceResponse, await res.json())
};