import {z} from 'zod'

export type UserOrRole = {user: string} | {role: string};

export type NamespaceIdentOrUuid = {'namespace-id': string, 'warehouse-id': string} | {namespace: Array<string>, 'warehouse-id': string};

export type TabularIdentOrUuid = {'table-id': string, 'warehouse-id': string} | {namespace: Array<string>, table: string, 'warehouse-id': string};

export type CedarResolveResource = 'server' | {project: {'project-id'?: (string | null) | undefined}} | {warehouse: {'warehouse-id': string}} | {namespace: NamespaceIdentOrUuid} | {table: TabularIdentOrUuid} | {view: TabularIdentOrUuid} | {'generic-table': TabularIdentOrUuid};

export type ResolveCedarEntitiesRequest = {principal?: (UserOrRole | null) | undefined, resource: CedarResolveResource};

export type CreateApiManagementV1PermissionsCedarResolveEntitiesArgs = {body: ResolveCedarEntitiesRequest};

export type CreateApiManagementV1PermissionsCedarResolveEntitiesOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const resolveCedarEntitiesResponse = z.object({entities: z.array(z.unknown()), "entity-count": z.number().int().gte(0)});

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
};

/**
 * Resolve Cedar entities for a given resource, returning the full entity
 * hierarchy that would be used in an authorization decision.
 * 
 * POST /management/v1/permissions/cedar/resolve-entities
 */
export const createApiManagementV1PermissionsCedarResolveEntities = async (args: CreateApiManagementV1PermissionsCedarResolveEntitiesArgs, options?: CreateApiManagementV1PermissionsCedarResolveEntitiesOptions) => {
const {baseUrl = "https://localhost", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/management/v1/permissions/cedar/resolve-entities${query.size > 0 ? `?${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(resolveCedarEntitiesResponse, await res.json())
};