import {z} from 'zod'

export type DocId = string;

export type Currency = string;

export type Money = {amount?: number | undefined, currency?: Currency | undefined};

export type ReversalRequest = {id: DocId, partialAmount?: Money | undefined};

export type CreateApiV1AuthorizationsReversalArgs = {auditUser: string, body: ReversalRequest};

export type CreateApiV1AuthorizationsReversalOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const mti = z.string().max(4);

export const docId = z.string().max(18);

export const authResponseCode = z.string().max(2);

export const retrievalReferenceNumber = z.string().max(12);

export const authResponse = z.object({metadata: z.object({mti: mti, id: docId}), transactionData: z.object({authResponseCode: authResponseCode, retrievalReferenceNumber: retrievalReferenceNumber})});

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
};

/**
 * Send test authorization reversal request
 * 
 * POST /v1/authorizations/reversal
 */
export const createApiV1AuthorizationsReversal = async (args: CreateApiV1AuthorizationsReversalArgs, options: CreateApiV1AuthorizationsReversalOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.auditUser != null) query.append("auditUser", String(args.auditUser))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/authorizations/reversal${query.size > 0 ? `?${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(authResponse, await res.json())
};