import {z} from 'zod'

export type GetApiSystemConfigArgs = {'X-Auth-Token': string, scope?: ('fed' | 'local') | undefined};

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

export const rESTWebhook = z.object({name: z.string(), url: z.string(), enable: z.boolean(), type: z.string(), cfg_type: z.string()});

export const rESTProxy = z.object({url: z.string(), username: z.string(), password: z.string().optional()});

export const rESTSystemConfig = z.object({new_service_policy_mode: z.string(), unused_group_aging: z.number().int(), syslog_ip: z.string(), syslog_ip_proto: z.number().int(), syslog_port: z.number().int(), syslog_level: z.string(), syslog_status: z.boolean(), syslog_categories: z.array(z.string()), syslog_in_json: z.boolean(), auth_order: z.array(z.string()), auth_by_platform: z.boolean(), configured_internal_subnets: z.array(z.string()).optional(), webhooks: z.array(rESTWebhook), cluster_name: z.string(), controller_debug: z.array(z.string()), monitor_service_mesh: z.boolean(), registry_http_proxy_status: z.boolean(), registry_https_proxy_status: z.boolean(), registry_http_proxy: rESTProxy, registry_https_proxy: rESTProxy, ibmsa_ep_enabled: z.boolean(), ibmsa_ep_start: z.number().int(), ibmsa_ep_dashboard_url: z.string(), ibmsa_ep_connected_at: z.string(), xff_enabled: z.boolean()});

export const rESTFedSystemConfig = z.object({webhooks: rESTWebhook});

export const rESTSystemConfigData = z.object({config: rESTSystemConfig, fed_config: rESTFedSystemConfig});

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
};

/**
 * System get configure
 * 
 * GET /system/config
 */
export const getApiSystemConfig = async (args: GetApiSystemConfigArgs, options: GetApiSystemConfigOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-Auth-Token'] != null) headers.set("X-Auth-Token", String(args['X-Auth-Token']))
if (args.scope != null) query.append("scope", String(args.scope))

const url = `${baseUrl.replace(/\/+$/, '')}/system/config${query.size > 0 ? `?${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(rESTSystemConfigData, await res.json())
};