import {z} from 'zod'

export type TransferWrite = {origination_account_id: string, destination_account_id: string, description?: string | undefined, amount: number, ach?: ({class_code: 'CCD' | 'PPD' | 'WEB', same_day: boolean}) | undefined};

export type CreateApiTransfersArgs = {body: TransferWrite};

export type CreateApiTransfersOptions = {baseUrl?: string | undefined, identity?: string | undefined, authorization?: string | undefined, fetch?: typeof fetch | undefined};

export const transfer = z.object({transfer_id: z.string().optional(), transaction_id: z.string().optional(), created_time: z.string(), updated_time: z.string(), settled_time: z.string(), origination_account_id: z.string().min(1), destination_account_id: z.string().min(1), description: z.string().min(1).optional(), amount: z.number().int(), status: z.literal("submitted").optional(), ach: z.object({ach_class_code: z.enum(["CCD", "PPD", "WEB"]).min(1), same_day: z.boolean()})});

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 a Transfer
 * 
 * POST /transfers
 */
export const createApiTransfers = async (args: CreateApiTransfersArgs, options?: CreateApiTransfersOptions) => {
const {baseUrl = "https://sandbox.bond.tech/api/v0", fetch: fetchFn = fetch, identity, authorization} = options ?? {}

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

if (identity !== undefined) headers.set("Identity", identity)
if (authorization !== undefined) headers.set("Authorization", authorization)

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