fn test_split() {
  parts := matrix.split("@user:server.com")
  assert parts[0] == '@'
  assert parts[1] == 'user'
  assert parts[2] == 'server.com'
}

pub fn split(id string) []string {
  mut parts := []string{}
  parts << id.substr(0,1)
  left := id.substr(1,id.len)
  parts << left.before(':')
  parts << left.after(':')
  return parts
}

	user_data['username'] = user_id

	user_data['username'] = split(user_id)[1]