import {z} from 'zod'

export type GetApiAdmissionOptionsArgs = {'X-Auth-Token': string};

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

export const rESTAdmissionState = z.object({enable: z.boolean().optional(), mode: z.string().optional(), default_action: z.string().optional(), adm_client_mode: z.string().optional(), adm_svc_type: z.string().optional(), adm_client_mode_options: z.object({service: z.string().optional(), url: z.string().optional()}).optional(), ctrl_states: z.object({validate: z.string().optional(), states: z.boolean().optional()}).optional()});

export const rESTAdmissionRuleOption: z.ZodType<RESTAdmissionRuleOption> = z.object({name: z.string(), ops: z.array(z.string()), values: z.array(z.string()).optional(), match_src: z.string().optional(), sub_options: z.object({rule: z.string().optional(), options: z.lazy(() => rESTAdmissionRuleOption.optional())}).optional()});

export const rESTAdmRuleOptions = z.object({rule_options: z.object({rule: z.string().optional(), options: rESTAdmissionRuleOption.optional()})});

export const rESTAdmCatOptions = z.object({k8s_options: rESTAdmRuleOptions.optional()});

export const rESTAdmRuleCriterion: z.ZodType<RESTAdmRuleCriterion> = z.object({name: z.string(), op: z.string(), value: z.string(), sub_criteria: z.array(z.lazy(() => rESTAdmRuleCriterion)).optional()});

export const rESTAdmRuleTypeOptions = z.object({deny_options: rESTAdmCatOptions, exception_options: rESTAdmCatOptions, psp_collection: z.array(rESTAdmRuleCriterion).optional()});

export const rESTAdmissionConfigData = z.object({state: rESTAdmissionState.optional(), admission_options: rESTAdmRuleTypeOptions.optional(), k8s_env: z.boolean()});

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
};

/**
 * Get a list of admission options
 * 
 * GET /admission/options
 */
export const getApiAdmissionOptions = async (args: GetApiAdmissionOptionsArgs, options: GetApiAdmissionOptionsOptions) => {
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']))

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