import WhiteboardMultiUser from '/imports/api/whiteboard-multi-user/';
import Users from '/imports/api/users';

const MSG_DIRECT_TYPE = 'DIRECT';
const NODE_USER = 'nodeJSapp';

export const indexOf = [].indexOf || function (item) {
  for (let i = 0, l = this.length; i < l; i += 1) {
    if (i in this && this[i] === item) {
      return i;
    }
  }

  return -1;
};

export const processForHTML5ServerOnly = fn => (message, ...args) => {
  const { envelope } = message;
  const { routing } = envelope;
  const { msgType, meetingId, userId } = routing;

  const selector = {
    userId,
    meetingId,
  };

  const user = Users.findOne(selector);

  const shouldSkip = user && msgType === MSG_DIRECT_TYPE && userId !== NODE_USER && user.clientType !== 'HTML5';
  if (shouldSkip) return () => { };
  return fn(message, ...args);
};


export const getMultiUserStatus = (meetingId) => {
  const data = WhiteboardMultiUser.findOne({ meetingId });

  if (data) {
    return data.multiUser;
  }

  return false;
};