using System;
using System.Diagnostics;
using System.IO;
using System.Net;
using System.Windows.Forms;
using Styx;
using TuanHACR.Share;

namespace TuanHACR.Login
{
    public partial class Login : Form
    {
        public Login()
        {
            InitializeComponent();
        }

        private void THLogin_Load(object sender, EventArgs e)
        {
            AutoLogin.Checked = LoginSettings.Instance.AutoLogin;
            RememberMe.Checked = LoginSettings.Instance.RememberMe;
            ShowPassword.Checked = LoginSettings.Instance.ShowPassword;

            if (LoginSettings.Instance.RememberMe)
            {
                if (LoginSettings.Instance.Username != "")
                {
                    UsernametextBox.Text = LoginCheck.Decrypt(LoginSettings.Instance.Username, StyxWoW.Me.Name);
                }
                if (LoginSettings.Instance.Password != "")
                {
                    PasswordtextBox.Text = LoginCheck.Decrypt(LoginSettings.Instance.Password, StyxWoW.Me.Name);
                }
                AutoLogin.Enabled = true;
            }
            else
            {
                AutoLogin.Enabled = false;
            }

            if (LoginSettings.Instance.ShowPassword)
            {
                PasswordtextBox.UseSystemPasswordChar = false;
            }
            else
            {
                PasswordtextBox.UseSystemPasswordChar = true;
            }

            _loginStartTime = DateTime.Now;
            var loginTimer = new Timer();
            loginTimer.Interval = 1000;
            loginTimer.Tick += new EventHandler(MyTimer_Tick);
            loginTimer.Tick += new EventHandler(GuestModeMyTimer_Tick);
            loginTimer.Start();

            if (AutoLogin.Checked
                && UsernametextBox.Text.Length > 0
                && PasswordtextBox.Text.Length > 0)
            {
                LoginButton_Click(null, null);
            }
        }

        private void LoginButton_Click(object sender, EventArgs e)
        {
            LoginCheck.CustomerMode = false;

            var usernameText = UsernametextBox.Text.Trim();
            //UsernameText = HttpUtility.UrlEncode(UsernameText);

            var passwordText = PasswordtextBox.Text.Trim();
            //PasswordText = HttpUtility.UrlEncode(PasswordText);
            LoginCheck.TimeStampCode =
                ((Int32) (DateTime.Now.Subtract(new DateTime(1970, 1, 1))).TotalSeconds).ToString();

            if (usernameText.Length < 1
                || passwordText.Length < 1)
            {
                MessageBox.Show("Invalid Username or Password.", "Important Note", MessageBoxButtons.OK,
                    MessageBoxIcon.Exclamation);

                if (LoginSettings.Instance.AutoLogin)
                {
                    LoginSettings.Instance.AutoLogin = false;
                }
                return;
            }

            var url =
                string.Format(
                    "http://www.tuanha.biz/index.php?option=com_bookpro&controller=customer&task=bpajaxlogin_md5_new&username={0}&password={1}&msp={2}&md5={3}&rdc={4}",
                    Func.Base64Encode(usernameText),
                    Func.Base64Encode(passwordText),
                    LoginCheck.Msp,
                    LoginCheck.CreateMD5Hash(usernameText + LoginCheck.Msp + LoginCheck.TimeStampCode),
                    LoginCheck.TimeStampCode);

            //Log.Debug("url: {0}", url);

            var http = (HttpWebRequest) WebRequest.Create(url);
            var response = http.GetResponse();
            var stream = response.GetResponseStream();
            var sr = new StreamReader(stream);
            var content = sr.ReadToEnd();
            //Removing " character
            content = content.Replace("\"", "");

            //Log.Debug("content: {0}", content);


            if (!content.Contains(LoginCheck.CreateMD5Hash(usernameText
                                                           + LoginCheck.KeyWord
                                                           + LoginCheck.TimeStampCode)))
            {
                //Log.Debug("!content.Contains: {0}", LoginCheck.CreateMD5Hash(usernameText
                //                                                             + LoginCheck.KeyWord
                //                                                             + LoginCheck.TimeStampCode));

                LoginCheck.FailLoginAttempt = LoginCheck.FailLoginAttempt + 1;
                LoginCheck.CustomerMode = false;
                Log.Yellow("Invalid Username or Password. ({0})", LoginCheck.FailLoginAttempt);
                Log.Yellow("nMake sure you have purchased " + Func.CombatRoutineName +
                           " and use login info for tuanha.biz");

                if (LoginCheck.FailLoginAttempt > 5)
                {
                    LoginCheck.FailLoginNextTime = DateTime.Now +
                                                   TimeSpan.FromSeconds((LoginCheck.FailLoginAttempt - 10)*2);
                    var nextlogintext = "Invalid Username or Password. ("
                                        + LoginCheck.FailLoginAttempt
                                        + ")\nMake sure you have purchased " + Func.CombatRoutineName
                                        + " and use login info for tuanha.biz"
                                        + "\nClick Forgot Login Info? to reset your password.";
                    MessageBox.Show(nextlogintext, "Important Note", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
                else
                {
                    MessageBox.Show(
                        "Invalid Username or Password. \nMake sure you have purchased "
                        + Func.CombatRoutineName
                        + " and use login info for tuanha.biz",
                        "Important Note", MessageBoxButtons.OK,
                        MessageBoxIcon.Exclamation);
                }
                return;
            }

            //Log.Yellow("TempString:" + content);
            var tempString =
                (content.Replace(
                    LoginCheck.CreateMD5Hash(usernameText
                                             + LoginCheck.KeyWord
                                             + LoginCheck.TimeStampCode), ""));

            //Log.Yellow("TempString after removing MD5:" + TempString);

            tempString = Func.Base64Decode(tempString);
            //Log.Yellow("TempString after Base64Decode:" + TempString);

            tempString = tempString.Substring(0, 10);
            //Log.Yellow("TempString after Substring:" + TempString);

            var timeinReturnUrl = Convert.ToInt32(tempString);


            if (content.Contains(LoginCheck.CreateMD5Hash(usernameText
                                                          + LoginCheck.KeyWord
                                                          + LoginCheck.TimeStampCode))
                && timeinReturnUrl >= (Int32) (DateTime.Now.Subtract(new DateTime(1970, 1, 1))).TotalSeconds - (60*15)
                && timeinReturnUrl < (Int32) (DateTime.Now.Subtract(new DateTime(1970, 1, 1))).TotalSeconds + (60*15)
                )
            {
                //Log.Debug("content.Contains: {0}", LoginCheck.CreateMD5Hash(usernameText
                //                                                            + LoginCheck.KeyWord
                //                                                            + LoginCheck.TimeStampCode));

                LoginCheck.FailLoginAttempt = 0;
                LoginCheck.CustomerMode = true;
                LoginCheck.GuestMode = false;
                _loginStartTime = DateTime.Now - LoginTimeout;

                Log.Yellow(Func.DashLine);
                //Log.Yellow("Thank you for" +
                //           " supporting TuanHA Combat Routine.");
                Log.Yellow(Func.DashLine);
                //Log.Yellow(
                //    "Please be advised that account sharing may result in access to the Combat Routine being blocked.");
                Log.Yellow(LoginCheck.Encrypt(usernameText, "123456"));
                Log.Yellow("Login Success...");
                Log.Yellow(Func.DashLine);


                if (!RememberMe.Checked)
                {
                    LoginSettings.Instance.Username = "";
                    LoginSettings.Instance.Password = "";
                }

                LoginSettings.Instance.Username = LoginCheck.Encrypt(usernameText, StyxWoW.Me.Name);
                LoginSettings.Instance.Password = LoginCheck.Encrypt(passwordText, StyxWoW.Me.Name);

                LoginSettings.Instance.Save();

                Close();
            }
            else
            {
                //Log.Debug("content.Contains but fail: {0}", LoginCheck.CreateMD5Hash(usernameText
                //                                                                     + LoginCheck.KeyWord
                //                                                                     + LoginCheck.TimeStampCode));

                LoginCheck.FailLoginAttempt = LoginCheck.FailLoginAttempt + 1;
                LoginCheck.CustomerMode = false;
                LoginCheck.GuestMode = true;
                Log.Yellow("Invalid Username or Password. ({0})", LoginCheck.FailLoginAttempt);
                Log.Yellow("Make sure you have purchased "
                           + Func.CombatRoutineName
                           + " and use login info for tuanha.biz");

                if (LoginCheck.FailLoginAttempt > 5)
                {
                    LoginCheck.FailLoginNextTime = DateTime.Now +
                                                   TimeSpan.FromSeconds((LoginCheck.FailLoginAttempt - 10)*2);
                    var nextlogintext = "Invalid Username or Password. ("
                                        + LoginCheck.FailLoginAttempt
                                        + ")\nMake sure you have purchased "
                                        + Func.CombatRoutineName
                                        + " and use login info for tuanha.biz"
                                        + "\nClick Forgot Login Info? to reset your password.";
                    MessageBox.Show(nextlogintext, "Important Note", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
                else
                {
                    MessageBox.Show(
                        "Invalid Username or Password. "
                        + "\nMake sure you have purchased"
                        + Func.CombatRoutineName
                        + " and use login info for tuanha.biz",
                        "Important Note", MessageBoxButtons.OK,
                        MessageBoxIcon.Exclamation);
                }
            }
        }

        private void MyTimer_Tick(object sender, EventArgs e)
        {
            if (LoginCheck.FailLoginNextTime <= DateTime.Now)
            {
                if (LoginButton.Enabled == false)
                {
                    LoginButton.Enabled = true;
                }
                return;
            }

            if (LoginButton.Enabled)
            {
                LoginButton.Enabled = false;
            }
        }

        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            Process.Start("http://www.tuanha.biz/index.php?option=com_bookpro&view=login");
        }

        private void RememberMe_CheckedChanged(object sender, EventArgs e)
        {
            LoginSettings.Instance.RememberMe = RememberMe.Checked;

            if (RememberMe.Checked)
            {
                AutoLogin.Enabled = true;
            }
            else
            {
                AutoLogin.Enabled = false;
            }
        }

        private void ShowPassword_CheckedChanged(object sender, EventArgs e)
        {
            LoginSettings.Instance.ShowPassword = ShowPassword.Checked;

            if (ShowPassword.Checked)
            {
                PasswordtextBox.UseSystemPasswordChar = false;
            }
            else
            {
                PasswordtextBox.UseSystemPasswordChar = true;
            }
        }

        private void PressEnter_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter
                && LoginCheck.FailLoginNextTime <= DateTime.Now)
            {
                LoginButton_Click(null, null);
            }
        }

        private void UsernametextBoxSelectAll(object sender, EventArgs e)
        {
            UsernametextBox.SelectAll();
        }

        private void PasswordtextBoxSelectAll(object sender, EventArgs e)
        {
            PasswordtextBox.SelectAll();
        }

        private void AutoLogin_CheckedChanged(object sender, EventArgs e)
        {
            LoginSettings.Instance.AutoLogin = AutoLogin.Checked;
        }

        private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
        }

        private void GuestLoginButton_Click(object sender, EventArgs e)
        {
            LoginCheck.GuestMode = true;
            _loginStartTime = DateTime.Now - LoginTimeout;
            Close();
        }

        #region Timer

        private static readonly TimeSpan LoginTimeout = TimeSpan.FromSeconds(30);
        private static DateTime _loginStartTime;

        private void GuestModeMyTimer_Tick(object sender, EventArgs e)
        {
            var runningSeconds = Math.Round((_loginStartTime + LoginTimeout - DateTime.Now).TotalSeconds);

            if (runningSeconds > 0)
            {
                Log.Yellow("Auto Login as GuestMode Mode in {0} seconds", runningSeconds);
                GuestLoginButton.Text = "GuestMode Mode (" + runningSeconds + ")";
            }
            else
            {
                GuestLoginButton_Click(null, null);
            }
        }

        #endregion

        private void GuestReadButton_Click(object sender, EventArgs e)
        {
            Process.Start("http://www.tuanha.biz/index.php?option=com_content&view=article&id=275&Itemid=257");
        }
    }
}