import {z} from 'zod'

export type CreateApiIso20022MessagePathArgs = {messagePath: 'pacs.008' | 'pacs.002' | 'pacs.028' | 'acmt.023' | 'acmt.024' | 'camt.054' | 'camt.056' | 'camt.029' | 'admi.002' | 'admi.004', body: BodyInit};

export type CreateApiIso20022MessagePathOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const technicalAckDto = z.object({uetr: z.string().optional(), messageType: z.enum(["pacs.008", "pacs.002", "pacs.028", "acmt.023", "acmt.024", "camt.054", "camt.056", "camt.029", "admi.002", "admi.004"]), msgId: z.string().min(24).max(35).optional(), receivedAt: z.string(), status: z.enum(["RECEIVED", "REJECTED"]), ackCode: z.string().optional()});

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
};

/**
 * Submit ISO 20022 message
 * 
 * POST /iso20022/{messagePath}
 */
export const createApiIso20022MessagePath = async (args: CreateApiIso20022MessagePathArgs, options?: CreateApiIso20022MessagePathOptions) => {
const {baseUrl = "http://localhost:8080", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/iso20022/${encodeURIComponent(String(args.messagePath))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: args.body})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(technicalAckDto, await res.json())
};