using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;

namespace Licznik
{
    public partial class MainPage : PhoneApplicationPage
    {
        List<double> Lista_liczb;
        // Constructor
        public MainPage()
        {
            InitializeComponent();
            Lista_liczb = new List<double>();
        }

        int ilosc = 0;
        double suma = 0;

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            //suma += Convert.ToInt32(textBox1.Text);
            //ilosc++;
            //textBlock2.Text = Convert.ToString((suma / ilosc));
            //textBox1.Text = "";
            Lista_liczb.Add(Convert.ToDouble(textBox1.Text));
        }



        private void textBox1_GotFocus(object sender, RoutedEventArgs e)
        {
            textBox1.Text = "";
        }

        private void listBox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            var wybrany = (ListBoxItem)e.AddedItems[0];
            if ((string)wybrany.Content == "średnia arytmetyczna")
            {
                suma = 0;
                foreach (var liczba in Lista_liczb)
                {
                    suma += liczba;
                    ilosc++;
                }
                textBlock2.Text = Convert.ToString((suma / ilosc));

            }
            else if ((string)wybrany.Content == "średnia geometryczna")
            {
                suma = 1;
                foreach (var liczba in Lista_liczb)
                {
                    suma = suma*liczba;
                    ilosc++;
                }
                double potega = 1 / (double)ilosc;
                double wynik=Math.Pow(suma,potega);
                textBlock2.Text = Convert.ToString(wynik);


            }
            else if ((string)wybrany.Content == "średnia harmoniczna")
            {
                suma = 0;
                foreach (var liczba in Lista_liczb)
                {
                    suma += 1/liczba;
                    ilosc++;
                }
                double wynik=ilosc/suma;
                textBlock2.Text = Convert.ToString(wynik);


            }
        }

        private void button3_Click(object sender, RoutedEventArgs e)
        {
            Lista_liczb.Clear();
            textBlock2.Text = "";
        }
        
    }
}