let onError = function(error) {
  console.log(error)
};
tuiCallEngine.on(TUICallEvent.ERROR, onError);

let onSDKReady = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.SDK_READY, onSDKReady);

let handleOnKickedOut = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.KICKED_OUT, handleOnKickedOut);

let handleUserAccept = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_ACCEPT, handleUserAccept);

let handleUserEnter = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_ENTER, handleUserEnter);

let handleUserLeave = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_LEAVE, handleUserLeave);

let handleInviteeReject = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.REJECT, handleInviteeReject);

let handleNoResponse = function(event) {
console.log(event)
};
tuiCallEngine.on(TUICallEvent.NO_RESP, handleNoResponse);

let handleLineBusy = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.LINE_BUSY, handleLineBusy);

let handleCallingTimeout = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.CALLING_TIMEOUT, handleCallingTimeout);

let handleUserVideoChange = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_VIDEO_AVAILABLE, handleUserVideoChange);

let handleUserAudioChange = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_AUDIO_AVAILABLE, handleUserAudioChange);

let handleUserVoiceVolumeChange = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.USER_VOICE_VOLUME, handleUserVoiceVolumeChange);

let handleGroupInviteeListUpdate = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.GROUP_CALL_INVITEE_LIST_UPDATE, handleGroupInviteeListUpdate);

let handleNewInvitationReceived = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.INVITED, handleNewInvitationReceived);

let handleCallingCancel = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.CALLING_CANCEL, handleCallingCancel);

let handleCallingEnd = function(event) {
  console.log(event)
};
tuiCallEngine.on(TUICallEvent.CALLING_END, handleCallingEnd);

let handleDeviceUpdated = function({ microphoneList, cameraList, currentMicrophoneID, currentCameraID }) {
  console.log(microphoneList, cameraList, currentMicrophoneID, currentCameraID)
};
tuiCallEngine.on(TUICallEvent.DEVICED_UPDATED, handleDeviceUpdated);

let handleCallTypeChanged = function({ oldCallType, newCallType }) {
  console.log(oldCallType, newCallType)
};
tuiCallEngine.on(TUICallEvent.CALL_TYPE_CHANGED, handleDeviceUpdated);