import {z} from 'zod'

export type OnrampProvider = 'bridge' | 'bridge-sandbox';

export type FiatPaymentRail = 'sepa' | 'ach_push' | 'wire' | 'fednow' | 'faster_payments';

export type FiatCurrency = 'usd' | 'eur';

export type OnrampChain = 'ethereum' | 'base' | 'arbitrum' | 'polygon' | 'optimism';

export type OnrampAsset = 'usdc';

export type CreateApiV1UsersUserIdFiatOnrampArgs = {user_id: string, 'privy-app-id': string, body: {amount: string, provider: OnrampProvider, source: {payment_rail: FiatPaymentRail, currency: FiatCurrency}, destination: {chain: OnrampChain, currency: OnrampAsset, to_address: string}}};

export type CreateApiV1UsersUserIdFiatOnrampOptions = {baseUrl?: string | undefined, appSecretAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const onrampTransferStatus = z.enum(["awaiting_funds", "in_review", "funds_received", "payment_submitted", "payment_processed", "canceled", "error", "undeliverable", "returned", "refunded"]);

export const fiatCurrency = z.enum(["usd", "eur"]);

export const fiatPaymentRail = z.enum(["sepa", "ach_push", "wire", "fednow", "faster_payments"]);

export const onrampDepositInstructions = z.object({amount: z.string(), currency: fiatCurrency, payment_rail: fiatPaymentRail, deposit_message: z.string().optional(), bank_name: z.string().optional(), bank_account_number: z.string().optional(), bank_routing_number: z.string().optional(), bank_beneficiary_name: z.string().optional(), bank_beneficiary_address: z.string().optional(), bank_address: z.string().optional(), iban: z.string().optional(), bic: z.string().optional(), account_holder_name: z.string().optional()});

export const createApiV1UsersUserIdFiatOnrampResponse = z.object({id: z.string(), status: onrampTransferStatus, deposit_instructions: onrampDepositInstructions});

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
};

/**
 * Initiate an onramp transaction
 * 
 * POST /v1/users/{user_id}/fiat/onramp
 */
export const createApiV1UsersUserIdFiatOnramp = async (args: CreateApiV1UsersUserIdFiatOnrampArgs, options?: CreateApiV1UsersUserIdFiatOnrampOptions) => {
const {baseUrl = "https://api.privy.io", fetch: fetchFn = fetch, appSecretAuth} = options ?? {}

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

if (args['privy-app-id'] != null) headers.set("privy-app-id", String(args['privy-app-id']))
if (appSecretAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${appSecretAuth.username}:${appSecretAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/users/${encodeURIComponent(String(args.user_id))}/fiat/onramp${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV1UsersUserIdFiatOnrampResponse, await res.json())
};