if (Meteor.isClient) {

  function controller_state() {
    var controller = Session.get('controller_id');
    var result = {}
    if (controller) {
      result = ControllerState.findOne({
        controller_id: controller
      });
    }

    if (!result) {
      result = {}
    };
    return result;
  };

  Template.state.helpers({
    controller_state: controller_state,
    pretty_valve: function(state) {
      if (state === 'open') return "Otvoren";
      if (state === 'opening') return "Otvara se";
      if (state === 'closing') return "Zatvara se";
      if (state === 'closed') return "Zatvoren";
    }
  });

  Template.state.events({
    'click #water_now': function() {
      var state = controller_state();
      ControllerState.update(state._id, {
        '$set': {
          'state.out_valve': 'opening',
          'time': new Date(),
          'set_by': 'server'
        }
      });
    },

    'click #stop_water_now': function() {
      var state = controller_state();
      ControllerState.update(state._id, {
        '$set': {
          'state.out_valve': 'closing',
          'time': new Date(),
          'set_by': 'server'
        }
      });
    }

  });
}