import {z} from 'zod'

export type IntermediaryBank = {bic?: string | undefined, routing_number?: string | undefined};

export type AuthorisePaymentRequest = {counterparty_id: number, sender_account_id: string, ccy: string, amount: string, reference: string, reason: string, notes?: string | undefined, preferred_scheme: 'AUTO' | 'BLINC' | 'INTERNAL', nonce: string, beneficiary_account_id?: number | undefined, beneficiary_name?: string | undefined, beneficiary_address_line_1?: string | undefined, beneficiary_address_line_2?: string | undefined, beneficiary_address_line_3?: string | undefined, beneficiary_city?: string | undefined, beneficiary_region?: string | undefined, beneficiary_postcode?: string | undefined, beneficiary_country?: string | undefined, beneficiary_account_number?: string | undefined, beneficiary_sort_code?: string | undefined, beneficiary_bic?: string | undefined, beneficiary_iban?: string | undefined, beneficiary_routing_number?: string | undefined, beneficiary_wire_routing?: string | undefined, beneficiary_swift_code?: string | undefined, beneficiary_national_clearing_code?: string | undefined, beneficiary_institution?: string | undefined, beneficiary_branch?: string | undefined, beneficiary_lei_code?: string | undefined, beneficiary_bank_name?: string | undefined, beneficiary_bank_address?: string | undefined, beneficiary_bank_country?: string | undefined, intermediary_bank?: IntermediaryBank | undefined};

export type CreateApiV5PaymentsAuthoriseArgs = {body: AuthorisePaymentRequest};

export type CreateApiV5PaymentsAuthoriseOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const authorisePaymentResponse = z.object({endToEndIdentification: z.string(), transactionId: z.string(), nonce: z.string(), response: z.string()});

export const createApiV5PaymentsAuthoriseResponse = z.array(authorisePaymentResponse);

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
};

/**
 * Authorise Payment
 * 
 * POST /v5/payments/authorise
 */
export const createApiV5PaymentsAuthorise = async (args: CreateApiV5PaymentsAuthoriseArgs, options?: CreateApiV5PaymentsAuthoriseOptions) => {
const {baseUrl = "https://api.bcb.group", fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v5/payments/authorise${query.size > 0 ? `?${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(createApiV5PaymentsAuthoriseResponse, await res.json())
};