using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Configuration;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Net.Http;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace DynUpdater
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private async void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            var x = new Properties.Settings();

            HttpClient client = new HttpClient();
            var byteArray = Encoding.ASCII.GetBytes(x.DynUsername+":"+x.DynPassword);
            client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
            
            try
            {
                BTNsave.Invoke((MethodInvoker)delegate () {
                    ProgressBarStatus.Visible = true;
                });
                HttpResponseMessage response = await client.GetAsync("https://www.ovh.com/nic/update?system=dyndns&hostname="+x.DynHostname);
                HttpContent content = response.Content;
                var result = content.ReadAsStringAsync();

                Console.WriteLine(StripHtml(result.Result));
                BTNsave.Invoke((MethodInvoker)delegate () {
                    TXTstatus.Text = StripHtml(result.Result);
                    LBLstatus.Text = response.StatusCode.ToString();
                });
            }

            
            catch (Exception ex)
            {
                BTNsave.Invoke((MethodInvoker)delegate () {
                    TXTstatus.Text = ex.Message;
                });
                Console.WriteLine(ex.Message);
            }
            finally
            {
                BTNsave.Invoke((MethodInvoker)delegate () {
                    ProgressBarStatus.Visible = false;
                });
            }
        }

        private string StripHtml(string source)
        {
            string output;
            output = Regex.Replace(source, "<[^>]*>", string.Empty);
            output = Regex.Replace(output, @"^\s*$\n", string.Empty, RegexOptions.Multiline);
            return output;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            LBLstatus.Text = "";
            var x = new Properties.Settings();
            TXTusername.Text = x.DynUsername;
            TXTpassword.Text = x.DynPassword;
            TXThostname.Text = x.DynHostname;
            timer1.Start();
            RunTask();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            RunTask();
        }

        private void RunTask()
        { 
            if(!backgroundWorker1.IsBusy) backgroundWorker1.RunWorkerAsync();
        }

        private void BTNexit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void BTNopen_Click(object sender, EventArgs e)
        {
           this.WindowState = FormWindowState.Normal;
        }

        private void BTNsave_Click(object sender, EventArgs e)
        {
            var x = new Properties.Settings();
            x.DynUsername = TXTusername.Text;
            x.DynPassword = TXTpassword.Text;
            x.DynHostname = TXThostname.Text;
            x.Save();
            RunTask();
        }

        private void configurazioneToolStripMenuItem_Click(object sender, EventArgs e)
        {
            var path = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoamingAndLocal).FilePath;
            Process.Start("notepad.exe", path);
        }

        private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            this.WindowState = FormWindowState.Normal;
        }
    }
}