using System;
using System.Windows.Forms;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;

namespace hiddenBrowser
{
    static class Program
    {
        /// <summary>
        /// アプリケーションのメイン エントリ ポイントです。
        /// </summary>
        [STAThread]
        static void Main(String[] arg)
        {
            if (arg.Length != 2)
            {
                Console.WriteLine("usage:\n   hiddenBrowser URL fileName");
                Application.Exit();
            }
            else
            {
                Console.WriteLine("hiddenBrowser {0} {1}",arg[0],arg[1]);
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                hiddenBrowserForm f = new hiddenBrowserForm(arg[0]);
                Application.Run(f);

                outputContent(f.firstString, arg[1]);

            }
        }

        static public void outputContent(String firstString, String FileName)
        {
            try
            {
                Regex regCrlf = new Regex(@"(\r\n|\r|\n)");
                Regex regTagStyle = new Regex(@"<[sS][tT][yY][lL][eE].*?>.*?</[sS][tT][yY][lL][eE]>", RegexOptions.Singleline);
                Regex regTagScript = new Regex(@"<[sS][cC][rR][iI][pP][tT].*?>.*?</[sS][cC][rR][iI][pP][tT]>", RegexOptions.Singleline);
                Regex regTagNoScript = new Regex(@"<[nN][oO][sS][cC][rR][iI][pP][tT].*?>.*?</[nN][oO][sS][cC][rR][iI][pP][tT]>", RegexOptions.Singleline);
                Regex regTagBr = new Regex(@"<[bB][rR].*?/*>");
                Regex regTagP = new Regex(@"</*[pP].*?/*>");
                Regex regTags = new Regex(@"<.+?>", RegexOptions.Singleline);
                Regex regBlanks = new Regex(@"(　| |\t|&nbsp;){1,}\n", RegexOptions.Singleline);
                Regex regCrlf2 = new Regex(@"\n{2,}", RegexOptions.Singleline);
                Regex regCrlf3 = new Regex(@"^\n{1,}", RegexOptions.Singleline);

                String ans = firstString;

                ans = regCrlf.Replace(ans, "\n");
                ans = regTagStyle.Replace(ans, "");
                ans = regTagScript.Replace(ans, "");
                ans = regTagNoScript.Replace(ans, "");
                ans = regTagBr.Replace(ans, "\n");
                ans = regTagP.Replace(ans, "\n");
                ans = regTags.Replace(ans, "");
                ans = regBlanks.Replace(ans, "\n");
                ans = regCrlf2.Replace(ans, "\n");
                ans = regCrlf3.Replace(ans, "");


                FileStream fs = new FileStream(FileName, FileMode.Create);
                Encoding ec = Encoding.UTF8;

                byte[] bf = ec.GetBytes(ans.ToCharArray());
                fs.Write(bf, 0, bf.Length);
                fs.Flush();
                fs.Close();
            }
            catch (Exception ee)
            {
                Console.WriteLine(ee.Message);
            }
        }
    }
}