import {z} from 'zod'

export type GetApiApiV3DirectoryRelationArgs = {object_type: string, object_id: string, relation: string, subject_type: string, subject_id: string, subject_relation?: string | undefined, with_objects?: boolean | undefined};

export type GetApiApiV3DirectoryRelationOptions = {baseUrl: string, DirectoryAPIKey?: string | undefined, TenantID?: string | undefined, fetch?: typeof fetch | undefined};

export const v3Object = z.object({created_at: z.string().optional(), display_name: z.string().optional(), etag: z.string().optional(), id: z.string(), properties: z.object({}).optional(), type: z.string(), updated_at: z.string().optional()});

export const v3Relation = z.object({created_at: z.string().optional(), etag: z.string().optional(), object_id: z.string(), object_type: z.string(), relation: z.string(), subject_id: z.string(), subject_relation: z.string().optional(), subject_type: z.string(), updated_at: z.string().optional()});

export const v3GetRelationResponse = z.object({objects: z.record(z.string(), v3Object).optional(), result: v3Relation.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
};

/**
 * Get relation instance
 * 
 * GET /api/v3/directory/relation
 */
export const getApiApiV3DirectoryRelation = async (args: GetApiApiV3DirectoryRelationArgs, options: GetApiApiV3DirectoryRelationOptions) => {
const {baseUrl, fetch: fetchFn = fetch, DirectoryAPIKey, TenantID} = options ?? {}

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

if (args.object_type != null) query.append("object_type", String(args.object_type))
if (args.object_id != null) query.append("object_id", String(args.object_id))
if (args.relation != null) query.append("relation", String(args.relation))
if (args.subject_type != null) query.append("subject_type", String(args.subject_type))
if (args.subject_id != null) query.append("subject_id", String(args.subject_id))
if (args.subject_relation != null) query.append("subject_relation", String(args.subject_relation))
if (args.with_objects != null) query.append("with_objects", String(args.with_objects))
if (DirectoryAPIKey !== undefined) headers.set("authorization", DirectoryAPIKey)
if (TenantID !== undefined) headers.set("aserto-tenant-id", TenantID)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v3/directory/relation${query.size > 0 ? `?${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(v3GetRelationResponse, await res.json())
};