using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsFormsApplication1
{
  public partial class Form1 : Form
  {
    #region Fields (2) 

    bool IsBusy;
    bool semaphoreForDocCompletedEvent;

    #endregion Fields 

    #region Constructors (1) 

    public Form1()
    {
      InitializeComponent();
    }

    #endregion Constructors 

    #region Methods (6) 

    // Private Methods (6) 

    private void button1_Click(object sender, EventArgs e)
    {
      webBrowser1.Navigate("https://www.axxes.fr/it");
      //Sequencing
      semaphoreForDocCompletedEvent = WaitForDocumentCompleted();
      if (!semaphoreForDocCompletedEvent)
        throw new Exception("casino in giro!");
    }

    private void button2_Click(object sender, EventArgs e)
    {
      HtmlElement buttonToPress = webBrowser1.Document.GetElementById("e_menuLevel1");
      foreach (HtmlElement elem in buttonToPress.FirstChild.All)
      {
        if (elem.InnerText.ToLower().Contains("area clienti"))
        {
          buttonToPress = elem;
          break;
        }
      }
      object obj = buttonToPress.DomElement;
      System.Reflection.MethodInfo mi = obj.GetType().GetMethod("click");
      mi.Invoke(obj, new object[0]);

      semaphoreForDocCompletedEvent = WaitForDocumentCompleted();
      if (!semaphoreForDocCompletedEvent)
        throw new Exception("casino in giro!");
    }

    private void button3_Click(object sender, EventArgs e)
    {
      //compilazione campi
      HtmlElement campoUtente = webBrowser1.Document.GetElementById("login");
      campoUtente.SetAttribute("Value", "stringa_del_nome");
      HtmlElement pwd = webBrowser1.Document.GetElementById("password");
      pwd.SetAttribute("Value", "stringa_della_passowrd");
      //submission
      HtmlElement okBtn = webBrowser1.Document.GetElementById("blocident");
      foreach (HtmlElement subElem in okBtn.All)
      {
        if (subElem.GetAttribute("classname").ToLower().Contains("btok"))
        {
          okBtn = subElem;
          break;
        }
      }

      object obj = okBtn.DomElement;
      System.Reflection.MethodInfo mi = obj.GetType().GetMethod("click");
      mi.Invoke(obj, new object[0]);

      semaphoreForDocCompletedEvent = WaitForDocumentCompleted();
      if (!semaphoreForDocCompletedEvent)
        throw new Exception("casino in giro!");
    }

    private void DocCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
    {
      if (webBrowser1.ReadyState == WebBrowserReadyState.Complete)
      {
        IsBusy = false;
        return;
      }
    }

    private void Navigating(object sender, WebBrowserNavigatingEventArgs e)
    {
      IsBusy = true;
    }

    /// <summary>
    /// Questa versione è proprio brutta, perchè DoEvents è una porcata ma funziona tutto bene finchè non tenti di premere il pulsante di chiusura form principale.
    /// Inibiscilo!
    /// </summary>
    /// <returns>a dummy value to be used as sequencer.</returns>
    private bool WaitForDocumentCompleted()
    {
      while (IsBusy)
      {
        Application.DoEvents();
        Thread.SpinWait(1000);
      }
      return true;
    }

    #endregion Methods 
  }
}