import {z} from 'zod'

export type GetApiMatrixClientV1RoomsRoomIdHierarchyArgs = {roomId: string, suggested_only?: boolean | undefined, limit?: number | undefined, max_depth?: number | undefined, from?: string | undefined};

export type GetApiMatrixClientV1RoomsRoomIdHierarchyOptions = {baseUrl?: string | undefined, accessTokenQuery?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiMatrixClientV1RoomsRoomIdHierarchyResponse = z.object({next_batch: z.string().optional(), rooms: z.array(z.object({avatar_url: z.string().optional(), canonical_alias: z.string().optional(), guest_can_join: z.boolean(), join_rule: z.string().optional(), name: z.string().optional(), num_joined_members: z.number().int(), room_id: z.string(), room_type: z.string().optional(), topic: z.string().optional(), world_readable: z.boolean(), allowed_room_ids: z.array(z.string()).optional(), encryption: z.literal("m.megolm.v1.aes-sha2").optional(), room_version: z.string().optional(), children_state: z.array(z.object({content: z.object({}), sender: z.string(), state_key: z.string(), type: z.string(), origin_server_ts: z.number().int()}))}))});

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
};

/**
 * Retrieve a portion of a space tree.
 * 
 * GET /_matrix/client/v1/rooms/{roomId}/hierarchy
 * 
 * Also accepts auth: accessTokenBearer
 */
export const getApiMatrixClientV1RoomsRoomIdHierarchy = async (args: GetApiMatrixClientV1RoomsRoomIdHierarchyArgs, options?: GetApiMatrixClientV1RoomsRoomIdHierarchyOptions) => {
const {baseUrl = "https://matrix.org", fetch: fetchFn = fetch, accessTokenQuery} = options ?? {}

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

if (args.suggested_only != null) query.append("suggested_only", String(args.suggested_only))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.max_depth != null) query.append("max_depth", String(args.max_depth))
if (args.from != null) query.append("from", String(args.from))
if (accessTokenQuery !== undefined) query.set("access_token", accessTokenQuery)

const url = `${baseUrl.replace(/\/+$/, '')}/_matrix/client/v1/rooms/${encodeURIComponent(String(args.roomId))}/hierarchy${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(getApiMatrixClientV1RoomsRoomIdHierarchyResponse, await res.json())
};