import {z} from 'zod'

export type PaymentInstrumentMandateDebtorRequest = {iban: string, bic: string, account_holder_name: string};

export type CreatePaymentInstrumentMandateRequest = {type: 'sepa_direct_debit', debtor: PaymentInstrumentMandateDebtorRequest};

export type CreateApiAccountsAccountIdPaymentInstrumentMandatesArgs = {account_id: string, 'LMG-Data-Privacy-Access-Principal': string, 'LMG-Data-Privacy-Access-Justification': string, 'Idempotency-Key'?: string | undefined, body: CreatePaymentInstrumentMandateRequest};

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

export const paymentInstrumentMandateType = z.literal("sepa_direct_debit");

export const paymentInstrumentMandateDebtorResponse = z.object({iban: z.string(), bic: z.string().optional(), account_holder_name: z.string()});

export const paymentInstrumentMandateCreditorAddressResponse = z.object({line_1: z.string(), line_2: z.string().optional(), postal_code: z.string(), city: z.string(), country: z.string()});

export const paymentInstrumentMandateCreditorResponse = z.object({identifier: z.string(), name: z.string(), address: paymentInstrumentMandateCreditorAddressResponse});

export const paymentInstrumentMandateScaResponse = z.object({required: z.boolean(), challenge: z.string().optional()});

export const paymentInstrumentMandateStatus = z.enum(["canceled", "confirmed", "created", "rejected"]);

export const statusChangePaymentInstrumentMandateStatus = z.object({status: paymentInstrumentMandateStatus, timestamp: z.string()});

export const paymentInstrumentMandateResponse = z.object({id: z.string(), type: paymentInstrumentMandateType, mandate_reference: z.string(), debtor: paymentInstrumentMandateDebtorResponse, creditor: paymentInstrumentMandateCreditorResponse, sca: paymentInstrumentMandateScaResponse.optional(), history: z.array(statusChangePaymentInstrumentMandateStatus)});

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 Payment Instrument Mandate
 * 
 * POST /accounts/{account_id}/payment_instrument_mandates
 */
export const createApiAccountsAccountIdPaymentInstrumentMandates = async (args: CreateApiAccountsAccountIdPaymentInstrumentMandatesArgs, options?: CreateApiAccountsAccountIdPaymentInstrumentMandatesOptions) => {
const {baseUrl = "https://sandbox.api.lemon.markets/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args['LMG-Data-Privacy-Access-Principal'] != null) headers.set("LMG-Data-Privacy-Access-Principal", String(args['LMG-Data-Privacy-Access-Principal']))
if (args['LMG-Data-Privacy-Access-Justification'] != null) headers.set("LMG-Data-Privacy-Access-Justification", String(args['LMG-Data-Privacy-Access-Justification']))
if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/accounts/${encodeURIComponent(String(args.account_id))}/payment_instrument_mandates${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(paymentInstrumentMandateResponse, await res.json())
};