import {z} from 'zod'

export type SimulatorV2TransactionsRequest = Array<{amount: number, currency?: string | undefined, direction: 'debit' | 'credit', type: 'credit_transfer' | 'direct_debit' | 'instant_credit_transfer', account_servicer_reference: string, reference?: string | undefined, booking_date?: string | undefined, value_date?: string | undefined, bank_data?: ({end_to_end_id?: string | undefined, transaction_id?: string | undefined, instruction_id?: string | undefined, payment_information_id?: string | undefined}) | undefined, external_account_id?: string | undefined, external_account?: {account_number: string, holder_name: string} | undefined, internal_account_id?: string | undefined, internal_account?: {account_number: string} | undefined}>;

export type CreateApiSimulatorConnectedAccountIdTransactionsArgs = {connected_account_id: string, body: SimulatorV2TransactionsRequest};

export type CreateApiSimulatorConnectedAccountIdTransactionsOptions = {baseUrl?: string | undefined, sec0?: string | undefined, fetch?: typeof fetch | undefined};

export const simulatorV2Response = z.object({files: z.array(z.object({file_id: z.string().optional(), file_name: z.string(), created_at: 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
};

/**
 * Create transaction
 * 
 * POST /simulator/{connected_account_id}/transactions
 */
export const createApiSimulatorConnectedAccountIdTransactions = async (args: CreateApiSimulatorConnectedAccountIdTransactionsArgs, options?: CreateApiSimulatorConnectedAccountIdTransactionsOptions) => {
const {baseUrl = "https://sandbox.numeral.io/v1", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (sec0 !== undefined) headers.set("x-api-key", sec0)

const url = `${baseUrl.replace(/\/+$/, '')}/simulator/${encodeURIComponent(String(args.connected_account_id))}/transactions${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(simulatorV2Response, await res.json())
};