import {z} from 'zod'

export type GetApiV1ReportingBalancesArgs = {as_of_time?: string | undefined, currency_code?: string | undefined};

export type GetApiV1ReportingBalancesOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, fetch?: typeof fetch | undefined};

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

export const money = z.object({currency_code: currencyCode, value: z.string().max(32)});

export const balanceDetail = z.object({currency: currencyCode, primary: z.boolean().optional(), total_balance: money, available_balance: money.optional(), withheld_balance: money.optional()});

export const balanceDetailList = z.array(balanceDetail);

export const accountId = z.string().min(13).max(13);

export const dateTime = z.string().min(20).max(64);

export const balancesResponse = z.object({balances: balanceDetailList.optional(), account_id: accountId.optional(), as_of_time: dateTime.optional(), last_refresh_time: dateTime.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 all balances
 * 
 * GET /v1/reporting/balances
 */
export const getApiV1ReportingBalances = async (args: GetApiV1ReportingBalancesArgs, options?: GetApiV1ReportingBalancesOptions) => {
const {baseUrl = "https://api-m.paypal.com", fetch: fetchFn = fetch, Oauth2} = options ?? {}

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

if (args.as_of_time != null) query.append("as_of_time", String(args.as_of_time))
if (args.currency_code != null) query.append("currency_code", String(args.currency_code))
if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/reporting/balances${query.size > 0 ? `?${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(balancesResponse, await res.json())
};