import {
  HashAlgorithms,
  SignatureAlgorithm,
} from "../../dtls/src/cipher/const";
import {
  ProtectionProfileAeadAes128Gcm,
  ProtectionProfileAes128CmHmacSha1_80,
} from "../../dtls/src/context/srtp";
import { DtlsRole } from "./transport/dtls";

// data channel export constants
export const DATA_CHANNEL_ACK = 2;
export const DATA_CHANNEL_OPEN = 3;

// 5.1.  DATA_CHANNEL_OPEN Message
export const DATA_CHANNEL_RELIABLE = 0x00;
export const DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT = 0x01;
export const DATA_CHANNEL_PARTIAL_RELIABLE_TIMED = 0x02;
export const DATA_CHANNEL_RELIABLE_UNORDERED = 0x80;
export const DATA_CHANNEL_PARTIAL_RELIABLE_REXMIT_UNORDERED = 0x81;
export const DATA_CHANNEL_PARTIAL_RELIABLE_TIMED_UNORDERED = 0x82;

export const WEBRTC_DCEP = 50;
export const WEBRTC_STRING = 51;
export const WEBRTC_BINARY = 53;
export const WEBRTC_STRING_EMPTY = 56;
export const WEBRTC_BINARY_EMPTY = 57;

export const DISCARD_HOST = "0.0.0.0";
export const DISCARD_PORT = 9;
export const MEDIA_KINDS = ["audio", "video"];

export const DIRECTIONS = ["inactive", "sendonly", "recvonly", "sendrecv"];
export const DTLS_ROLE_SETUP = {
  auto: "actpass",
  client: "active",
  server: "passive",
};
export const DTLS_SETUP_ROLE: { [key: string]: DtlsRole } = Object.keys(
  DTLS_ROLE_SETUP
).reduce((acc, cur) => {
  const key = (DTLS_ROLE_SETUP as any)[cur];
  acc[key] = cur;
  return acc;
}, {} as any);
export const FMTP_INT_PARAMETERS = [
  "apt",
  "max-fr",
  "max-fs",
  "maxplaybackrate",
  "minptime",
  "stereo",
  "useinbandfec",
];

export const SSRC_INFO_ATTRS = ["cname", "msid", "mslabel", "label"];

export const SRTP_PROFILE = {
  SRTP_AES128_CM_HMAC_SHA1_80: ProtectionProfileAes128CmHmacSha1_80,
  SRTP_AEAD_AES_128_GCM: ProtectionProfileAeadAes128Gcm,
} as const;

export const SenderDirections = ["sendonly", "sendrecv"];
export const ReceiverDirection = ["sendrecv", "recvonly"];

export { HashAlgorithms, SignatureAlgorithm };