/**
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.github.pires.obd.commands.fuel;

import com.github.pires.obd.commands.ObdCommand;
import com.github.pires.obd.enums.AvailableCommandNames;

/**
 * Fuel Consumption Rate per hour.
 */
public class FuelConsumptionRateObdCommand extends ObdCommand {

  private float fuelRate = -1.0f;

  public FuelConsumptionRateObdCommand() {
    super("01 5E");
  }

  /**
   * <p>Constructor for FuelConsumptionRateObdCommand.</p>
   *
   * @param other a {@link com.github.pires.obd.commands.fuel.FuelConsumptionRateObdCommand} object.
   */
  public FuelConsumptionRateObdCommand(FuelConsumptionRateObdCommand other) {
    super(other);
  }

  @Override
  protected void performCalculations() {
    // ignore first two bytes [hh hh] of the response
    fuelRate = (buffer.get(2) * 256 + buffer.get(3)) * 0.05f;
  }

  @Override
  public String getFormattedResult() {
    return String.format("%.1f%s", fuelRate, getResultUnit());
  }

  @Override
  public String getCalculatedResult() {
    return String.valueOf(fuelRate);
  }

  @Override
  public String getResultUnit() {
    return "L/h";
  }

  /**
   * @return a float.
   */
  public float getLitersPerHour() {
    return fuelRate;
  }

  @Override
  public String getName() {
    return AvailableCommandNames.FUEL_CONSUMPTION.getValue();
  }

}
