import {z} from 'zod'

export type GetApiMoneyPayinsEstimateArgs = {amount?: string | undefined};

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

export const moneyfmtFormattedMoneyAmountView = z.object({compact: z.string(), currency_sign: z.string(), currency_sign_position: z.string(), full: z.string()});

export const moneyfmtMoneyAmountView = z.object({float: z.number(), formatted: moneyfmtFormattedMoneyAmountView, precise: z.string(), symbol: z.string(), zero: z.boolean()});

export const payinsEstimatePayinOutput = z.object({estimate_available: z.boolean().optional(), estimated_usdc: z.string().optional(), estimated_usdc_view: moneyfmtMoneyAmountView.optional(), rate: z.string().optional(), source: z.string().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
};

/**
 * Estimate SPEI pay-in
 * 
 * GET /money/payins/estimate
 */
export const getApiMoneyPayinsEstimate = async (args: GetApiMoneyPayinsEstimateArgs, options: GetApiMoneyPayinsEstimateOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.amount != null) query.append("amount", String(args.amount))

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