using System.Windows.Forms;
using System.Net;
using System.Xml;
using System.IO;



namespace xml_kurz
{
    public partial class Form1 : Form
    {

        class kurzy
        {
            public string kod;
            public string zeme;
            public float kurz;
           

            public override string ToString()
            {
                return kod.ToString() + " - " + zeme.ToString();
            }
        }

        private void parzuj_xml(Stream xml_data)
        {    
            XmlReader xmlko;
 
            xmlko = XmlReader.Create(xml_data);
     

            while (!xmlko.EOF)
            {
                xmlko.Read();
                kurzy kurz = new kurzy();

                if ((xmlko.NodeType == XmlNodeType.Element) && (xmlko.Name == "Kurz"))
                {
                    kurz.kod = xmlko.GetAttribute("KodMeny");
                    kurz.kurz = Convert.ToSingle(xmlko.GetAttribute("Kurz")) / Convert.ToSingle(xmlko.GetAttribute("Mnozstvi"));
                    kurz.zeme = xmlko.GetAttribute("Zeme");
                    comboBox1.Items.Add(kurz);
                }
           

    
            } // While cteni XMLka

            xmlko.Close();
            return;
        }


        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            toolStripStatusLabel1.Text = "Conneting...";
            WebRequest spojeni = WebRequest.Create("http://jirikanda.webasistent.cz/XmlKurzovniListek.ashx?date="+textBox2.Text);
            WebResponse odpoved = null;
            try
            {
                toolStripStatusLabel1.Text = "Downloading...";
                odpoved = spojeni.GetResponse();
                comboBox1.Items.Clear();
                toolStripStatusLabel1.Text = "Parzuji...";
                parzuj_xml(odpoved.GetResponseStream());
                toolStripStatusLabel1.Text = "Kurz Nacten! - "+textBox2.Text;
                comboBox1.Enabled = true;
            }
            catch (Exception ex)
            {
                MessageBox.Show("Chyba: "+ex.Message);
                toolStripStatusLabel1.Text = "Chyba: "+ex.Message;
            }


        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            textBox1.Enabled = true;
            textBox3.Enabled = true;
            kurzy kurz = new kurzy();

            kurz = (kurzy)comboBox1.Items[comboBox1.SelectedIndex];
            label3.Text = kurz.kurz.ToString();
            label6.Text = kurz.kod;
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
         

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            DateTime datum = DateTime.Now;
            string mes;
            string den;

            if (datum.Month.ToString().Length != 2)
                mes = "0"+ datum.Month;
            else
                mes = datum.Month.ToString();

            if (datum.Day.ToString().Length != 2)
                den = "0" + datum.Day;
            else
                den = datum.Day.ToString();

            textBox2.Text = datum.Year + "-" + mes  + "-" + den;
        }


        private void textBox3_KeyUp(object sender, KeyEventArgs e)
        {
            try
            {
                textBox1.Text = Convert.ToString(Convert.ToSingle(label3.Text) * Convert.ToSingle(textBox3.Text));
            }
            catch
            {
                textBox1.Text = "Neplatne Zadani";
            }
        }

        private void textBox1_KeyUp(object sender, KeyEventArgs e)
        {
            try
            {
                textBox3.Text = Convert.ToString(Convert.ToSingle(textBox1.Text) / Convert.ToSingle(label3.Text));
            }
            catch
            {
                textBox3.Text = "Neplatne Zadani";
            }
        }
    }