// Global API configuration
var Api = new Restivus({
  version: 'v1.0',
  useDefaultAuth: true,
  prettyJson: true
});

Api.addRoute('sensorData', {
  authRequired: false
}, {
  post: function() {
    reactToSensorData(this.bodyParams);
    SensorData.insert({
      temperatureValue: parseFloat(this.bodyParams.temperatureValue),
      humidityValue: parseFloat(this.bodyParams.humidityValue),
      tankLevel0: this.bodyParams.tankLevel0,
      tankLevel1: this.bodyParams.tankLevel1,
      tankLevel2: this.bodyParams.tankLevel2,
      tankLevel3: this.bodyParams.tankLevel3,
      tankLevel4: this.bodyParams.tankLevel4,
      tankFull: this.bodyParams.tankFull,
      owner: this.bodyParams.owner,
      controllerId: this.bodyParams.controllerId,
      created_at: new Date()
    });
    return [];
  }
});


function reactToSensorData(nextSensorReading) {
  console.log("reacting to sensor");
  var controllerId = nextSensorReading.controllerId;
  var state = stateOrDefault(controllerId).state;
  var shouldStartPumping = (!state.in_valve || state.in_valve === 'closed') && ((parseInt(nextSensorReading.tankFull) === 0) && (state.out_valve === 'closed' || state.out_valve === 'closing'));

  if (shouldStartPumping) {
    ControllerState.update({
      controller_id: controllerId
    }, {
      '$set': {
        'state.in_valve': 'opening',
        'time': new Date(),
        'set_by': 'server'
      }
    });
  }
  var shouldStopPumping =  (state.in_valve === 'open' || state.in_valve === 'opening') && (parseInt(nextSensorReading.tankFull) === 1 || state.out_valve === 'open' || state.out_valve === 'opening');

  if (shouldStopPumping) {
    ControllerState.update({
      controller_id: controllerId
    }, {
      '$set': {
        'state.in_valve': 'closing',
        'time': new Date(),
        'set_by': 'server'
      }
    });
  }
}

Api.addRoute('state/:id', {
  authRequired: false
}, {
  post: function() {
    console.log("setting state", this.bodyParams);
    return ControllerState.update({
      controller_id: this.urlParams.id
    }, {
      '$set': {
        'state.out_valve': this.bodyParams.out_valve,
        'state.in_valve': this.bodyParams.in_valve,
        'time': new Date(),
        'set_by': 'client'
      }
    });
  },
  get: function() {
    return stateOrDefault(this.urlParams.id).state;
  }
});


function stateOrDefault(id) {
  var stateEntry = ControllerState.findOne({
    controller_id: id,
  });

  if (stateEntry === undefined) {
    stateEntry = ControllerState.insert({
      controller_id: id,
      state: {
        out_valve: 'closed',
        in_valve: 'closed'
      },
      time: new Date(),
      config: {
        draining_period_amount: 40,
        draining_period_unit: 'minutes'
      },
      set_by: 'server'
    });
  };
  var stateEntry = ControllerState.findOne({
    controller_id: id,
  });
  return stateEntry;
}