DefiningClasses1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class GSM
{
    private string model;
    private string manufacturer;
    private double price = 0.37;
    private string owner;
    private char iPhone4S;
    
    
    public GSM(string model, string manufacturer)
    {
        this.Model=model;
        this.Manufacturer = manufacturer;
        this.Price = 0;
        this.Owner = null;
    }
    public GSM(string model, string manufacturer, double price, bool iPhone)
    {
        this.Model = model;
        this.Manufacturer = manufacturer;
        this.Price = price;
        this.Owner = null;
    }
    public GSM(string model, string manufacturer, string owner, bool iPhone)
    {
        this.Model = model;
        this.Manufacturer = manufacturer;
        this.Price = 0;
        this.Owner = owner;
    }
    public GSM(string model, string manufacturer, double price, string owner, bool iPhone)
    {
        this.Model = model;
        this.Manufacturer = manufacturer;
        this.Price = price;
        this.Owner = owner;
    }
    public override string ToString()
    {
        return ("Model: " + this.model + "\n" + "Manufacturer: " + this.manufacturer + "\n" + "Price: " + this.price + "$" + "\n" + "Owner: " + this.owner + "\n" + "Is iPhone: " + this.IPhone + "\n");
    }
    public string Model
    {
        get { return this.model; }
        set { this.model = value; }
    }
    public string Manufacturer
    {
        get { return this.manufacturer; }
        set { this.manufacturer = value; }
    }
    public double Price
    {
        get { return this.price; }
        set
        {
            if (value < 0)
            {
                throw new ArgumentException("Price cannot be negative!");
            }
            else this.price = value; }
    }
    public string Owner
    {
        get { return this.owner; }
        set { this.owner = value; }
    }
    public char IPhone
    {
        get { return this.iPhone4S; }
        set { this.iPhone4S = value; }
    }
    public List<Call> CallHistory = new List<Call>();
    public void AddCall (string phonenumber, double duration)
    {
        CallHistory.Add(new Call(phonenumber, duration));
    }
    public void RemoveCall(List<Call> AllCalls, string phonenumber, int duration)
    {
        if (AllCalls.Exists(element => element.Phonenumber == phonenumber))
        {
            
        }
    }
    public void ClearCallHistory(List<Call> AllCalls)
    {
        AllCalls.Clear();
    }
    public double CalculatePrice(List<Call> AllCalls, double price = 0.37)
    {
        double sum = 0;
        foreach (Call currentCall in AllCalls)
        {
            sum += currentCall.Duration * price;
        }
        return sum;
    }
}

class Battery
{
    private string model;
    private double hoursidle;
    private double hourstalk;
    private enum BatteryType {LiIon, NiMH, NiCd};
    
    public Battery(string model)
    {
        this.Model = model;
        this.Hoursidle = 0;
        this.Hourstalk = 0;
    }
    public Battery(string model, double hoursidle)
    {
        this.Model = model;
        this.Hoursidle = hoursidle;
        this.Hourstalk = 0;
    }    
    public Battery(string model, double hoursidle, double hourstalk)
    {
        this.Model = model;
        this.Hoursidle = hoursidle;
        this.Hourstalk = hourstalk;
    }

    public string Model
    {
        get { return this.model; }
        set { this.model = value; }
    }
    public double Hoursidle
    {
        get { return this.hoursidle; }
        set { this.hoursidle = value; }
    }
    public double Hourstalk
    {
        get { return this.hourstalk; }
        set { this.hourstalk = value; }
    }    
}

class Display
{
    private double size;
    private int colors;

    public Display()
    {
        this.Size = 0;
        this.Colors = 0;
    }
    public Display(double size, int colors)
    {
        this.Size = size;
        this.Colors = colors;
    }

    public double Size
    {
        get { return this.size; }
        set { this.size = value; }
    }
    public int Colors
    {
        get { return this.colors; }
        set
        {
            if (colors <= 0)
            {
                throw new ArgumentException("Colors cannot be 0 or negative!");
            }
            else this.colors = value;
        }
    }
}

class Call
{
    private int day;
    private string time;
    private string phonenumber;
    private double duration;

    public Call(string phonenumber, double duration)
    {
        this.day = DateTime.Now.Day;
        this.time = DateTime.Now.ToShortTimeString();
        this.Phonenumber = phonenumber;
        this.Duration = duration;
    }
    public string Phonenumber
    {
        get { return this.phonenumber; }
        set { this.phonenumber = value; }
    }
    public double Duration
    {
        get { return this.duration; }
        set { this.duration = value; }
    }
    public override string ToString()
    {
        return ("Date: " + this.day + "\n" + "Time: " + this.time + "\n" + "Phone dialed: " + this.phonenumber + "\n" + "Duration: " + this.duration + "\n");
    }
}

class GSMCallHistoryTest
{    
    static GSM GSMInput()
    {        
        Console.WriteLine("Enter model: ");
        string model = Console.ReadLine();
        Console.WriteLine("Enter manufacturer: ");
        string manufacturer = Console.ReadLine();
        GSM currentGSM = new GSM(model, manufacturer);
        Console.WriteLine("Enter price or 0: ");
        double price = double.Parse(Console.ReadLine());
        Console.WriteLine("Enter owner or 0: ");
        string owner = Console.ReadLine();
        Console.WriteLine("Is it iPhone? Y/N: ");
        currentGSM.IPhone = (Console.ReadLine() == "Y") ? 'Y' : 'N';
        if (price != 0) 
        {
            currentGSM.Price = price;
        }
        if (owner != "0")
        {
            currentGSM.Owner = owner;
        }       
        return currentGSM;
    }

    static GSM[] GSMTest()
    {
        Console.WriteLine("How many GSMs u want to input? ");
        int n = int.Parse(Console.ReadLine());
        GSM[] GSMarr = new GSM[n];
        for (int i = 0; i < n; i++)
        {
            GSMarr[i] = GSMInput();
        }
        for (int i = 0; i < n; i++)
        {
            Console.WriteLine(GSMarr[i]);
        }
        return GSMarr;
    }

    static List<Call> PerformCalls()
    {
        Console.WriteLine("How many calls do you wish to perform?");
        int n = int.Parse(Console.ReadLine());
        List<Call> Callarray = new List<Call>();
        for (int i = 0; i < n; i++)
        {
            Console.WriteLine("Call number " + (i+1)); 
            Console.WriteLine("To which phone number? ");
            string phonenumber = Console.ReadLine();
            Console.WriteLine("What duration? ");
            double duration = double.Parse(Console.ReadLine());
            Callarray.Add(new Call(phonenumber, duration));
            Console.WriteLine();
        }
        for (int i = 0; i < n; i++)
        {
            Console.WriteLine(Callarray[i]);
        }
        return Callarray;
    }

    static List<Call> RemoveLongest(List<Call> calls)
    {
        double max = 0;
        int index = 0;
        for (int i = 0; i < calls.Count; i++)
        {
            if (calls[i].Duration > max)
            {
                max = calls[i].Duration;
                index = i;
            }
        }
        calls[index].Duration = 0;
        return calls;
    }

    static void Main()
    {
        GSM[] GSMarray = GSMTest();
        List<Call> Callarray = PerformCalls();
        Console.WriteLine("Total price: " + GSMarray[0].CalculatePrice(Callarray));
        Callarray = RemoveLongest(Callarray);
        Console.WriteLine("Price without longest call: " + GSMarray[0].CalculatePrice(Callarray));
        GSMarray[0].ClearCallHistory(Callarray);
        Console.WriteLine();
        for (int i = 0; i < Callarray.Count; i++)
        {
            Console.WriteLine(Callarray[i]);
        }
    }
}