using System;
using System.Collections.Generic;
using System.Text;

public abstract class Vehicle
{
    public double FuelQuantity { get; set; }
    public double LitersPerKmConsumed { get; set; }
    public double TankCapacity { get; set; }
    public double MaxDistanceCanTravel
    {
        get
        {
            return FuelQuantity / LitersPerKmConsumed;
        }
    }
    public Vehicle(double fuelQuantity, double litersPerKmConsumed, double tankCapacity)
    {
        this.LitersPerKmConsumed = litersPerKmConsumed;
        this.TankCapacity = tankCapacity;
        if (tankCapacity >= fuelQuantity)
        {
            this.FuelQuantity = fuelQuantity;
        }
        else
        {
            this.FuelQuantity = 0;
        }

    }
    public virtual void Refuel(double liters)
    {
        if (liters <= 0)
        {
            Console.WriteLine("Fuel must be a positive number");
        }
        else if (this.TankCapacity < this.FuelQuantity + liters)
        {
            Console.WriteLine($"Cannot fit {liters} fuel in the tank");
        }
        else
        {
            this.FuelQuantity = this.FuelQuantity + liters;
        }
    }
    public abstract void Drive(double kilometresToTravel);
    public virtual void DriveEmpty(double kilometresToTravel)
    {

    }
}
class Car : Vehicle
{
    public Car(double fuelQuantity, double litersPerKmConsumed, double tankCapacity)
        : base(fuelQuantity, litersPerKmConsumed + 0.9, tankCapacity)
    {

    }
    public override void Refuel(double liters)
    {
        base.Refuel(liters);
    }

    public override void Drive(double kilometresToTravel)
    {
        if (MaxDistanceCanTravel >= kilometresToTravel)
        {
            FuelQuantity = FuelQuantity - LitersPerKmConsumed * kilometresToTravel;
            Console.WriteLine($"Car travelled {kilometresToTravel} km");
        }
        else
        {
            Console.WriteLine("Car needs refueling");
        }
    }
    public override string ToString()
    {
        return string.Format("Car: {0:F2}", base.FuelQuantity);
    }
}
class Truck : Vehicle
{
    public Truck(double fuelQuantity, double litersPerKmConsumed, double tankCapacity)
        : base(fuelQuantity, litersPerKmConsumed + 1.6, tankCapacity)
    {
    }
    public override void Refuel(double liters)
    {
        if (liters <= 0)
        {
            Console.WriteLine("Fuel must be a positive number");
        }
        else
        {
            double totalFuel = base.FuelQuantity + liters * 0.95;
            if (totalFuel > base.TankCapacity)
            {
                Console.WriteLine($"Cannot fit {liters} fuel in the tank");
            }
            else
            {
                base.FuelQuantity += liters * 0.95;
            }
        }
        //base.Refuel(liters * 0.95);
    }
    public override void Drive(double kilometresToTravel)
    {
        if (MaxDistanceCanTravel >= kilometresToTravel)
        {
            FuelQuantity = FuelQuantity - LitersPerKmConsumed * kilometresToTravel;
            Console.WriteLine($"Truck travelled {kilometresToTravel} km");
        }
        else
        {
            Console.WriteLine("Truck needs refueling");
        }
    }
    public override string ToString()
    {
        return string.Format("Truck: {0:F2}", base.FuelQuantity);
    }
}
class Bus
    : Vehicle
{
    public Bus(double fuelQuantity, double litersPerKmConsumed, double tankCapacity) :
        base(fuelQuantity, litersPerKmConsumed, tankCapacity)
    {
    }

    public override void Drive(double kilometresToTravel)
    {
        this.LitersPerKmConsumed = this.LitersPerKmConsumed + 1.4;
        if (FuelQuantity / LitersPerKmConsumed >= kilometresToTravel)
        {
            FuelQuantity = FuelQuantity - LitersPerKmConsumed * kilometresToTravel;
            Console.WriteLine($"Bus travelled {kilometresToTravel} km");
        }
        else
        {
            Console.WriteLine("Bus needs refueling");
        }
        this.LitersPerKmConsumed = this.LitersPerKmConsumed - 1.4;
    }
    public override void DriveEmpty(double kilometresToTravel)
    {
        if (FuelQuantity / LitersPerKmConsumed >= kilometresToTravel)
        {
            FuelQuantity = FuelQuantity - (LitersPerKmConsumed * kilometresToTravel);
            Console.WriteLine($"Bus travelled {kilometresToTravel} km");
        }
        else
        {
            Console.WriteLine("Bus needs refueling");
        }
    }
    public override void Refuel(double liters)
    {
        base.Refuel(liters);
    }

    public override string ToString()
    {
        return string.Format("Bus: {0:F2}", base.FuelQuantity);
    }
}