function stats() {
  return mongoose.models.Account
    .find()
    .then((accounts) => {
      const pilotEmails = pilotUsers.map(p => p.Email);
      const activeAccounts = accounts.filter(a => a.active).map(a => a.email);
      const inactiveAccounts = accounts.filter(a => !a.active).map(a => a.email);

      const activePilots = _.intersection(activeAccounts, pilotEmails).length;
      const inactivePilots = _.intersection(inactiveAccounts, pilotEmails).length;

      const activeRegular = activeAccounts.length - activePilots;
      const inactiveRegular = inactiveAccounts.length - inactivePilots;


      return Promise.resolve({
        totalUsers: accounts.length,
        regular: {
          active: activeRegular,
          inactive: inactiveRegular,
        },
        pilots: {
          active: activePilots,
          inactive: inactivePilots,
        },
      });
    })
    .catch((err) => {
      console.error(err);
    });
}