import {z} from 'zod'

export type GetApiFieldsListArgs = {'session-guid'?: string | undefined};

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

export const fieldBean = z.object({name: z.string().optional(), value: z.string().optional()});

export const listFieldsResponse = z.object({status: z.enum(["OK", "ERROR", "BAD_REQUEST", "CREATED", "NO_CONTENT", "DELETED", "CANCELLED", "CLOSED", "REMOVED", "NOT_FOUND", "AUTHENTICATION_FAILED", "AUTHENTICATION_OK", "INVALID_SESSION_GUID", "UNAUTHORIZED", "FORBIDDEN", "RECEIVED", "ACCEPTED", "ENQUEUED", "INVALID_PARAMETERS", "FIELD_VALIDATION_ERROR", "ILLEGAL_STATE", "NOT_ENOUGH_DATA", "VALIDATION_ERROR", "IMPORTED", "UPDATED", "IGNORED", "SERVICE_STARTED", "SERVICE_CANCELLED", "SERVICE_SUBMITTED"]).optional(), code: z.number().int().optional(), fields: z.array(fieldBean).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
};

/**
 * listSearchFields
 * 
 * GET /fields/list
 */
export const getApiFieldsList = async (args: GetApiFieldsListArgs, options?: GetApiFieldsListOptions) => {
const {baseUrl = "http://<ip>:8085/gbds/v2", fetch: fetchFn = fetch} = options ?? {}

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

if (args['session-guid'] != null) headers.set("session-guid", String(args['session-guid']))

const url = `${baseUrl.replace(/\/+$/, '')}/fields/list${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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