using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Navigation;
#if WIN32
using MSHTML;
#else
using mshtml;
#endif
using System.Diagnostics;
using System.Globalization;
using sharpknife.Utils;
using sharpknife.Strategies;
using sharpknife.Controls;
using sharpknife.Engines;

namespace sharpknife.Commands
{
    public class BalanceCommand : Command
    {
        private WebBrowserControl browser;

        private PTCSource source;
        public PTCSource Source
        {
            get
            {
                return source;
            }
            set
            {
                source = value;
                SourceName = source.Name;
                OnPropertyChanged("SourceName");
            }
        }

        public string SourceName { get; set; }

        private Strategy strategy;

        public BalanceCommand()
        {
        }

        public BalanceCommand(string name)
        {
            this.Group = "Browser";
            this.Timeout = 45;

            browser = WebBrowserControl.GetWebBrowserControl();

            Source = PTCSource.GetSource(name);
            strategy = Strategy.GetStrategy(name);
        }

        public override void Execute()
        {
            if (!string.IsNullOrWhiteSpace(source.AllowedHost) && source.AllowedHost != "*" && !StringUtils.Contains(Environment.MachineName, source.AllowedHost))
            {
                Status = StatusCode.Canceled;
                return;
            }

            base.Execute();

            CommandEngine engine = CommandEngine.GetEngine();
            var duplicates = (from c in engine.Commands where c.Type == this.Type && !c.IsCompleted && c != this select c).ToList();
            foreach (BalanceCommand command in duplicates)
            {
                if (command.SourceName == this.SourceName)
                {
                    Cancel();
                    Debug = "Duplicate";
                    return;
                }
            }

            browser.Stop();

            browser.LoadCompleted += BalanceCommand_LoadCompleted;

            Debug = "Navigate";
            browser.Navigate(source.BalanceUrl);
        }

        void BalanceCommand_LoadCompleted(object sender, NavigationEventArgs e)
        {
            if (string.IsNullOrWhiteSpace(browser.Html))
            {
                Failed("Empty response");
                return;
            }
            else if (StringUtils.Contains(browser.Html, "This program cannot display the webpage"))
            {
                Failed("This program cannot display the webpage");
                return;
            }
            else if (StringUtils.Contains(browser.Html, "Error Code 11002: Host not found"))
            {
                Failed("Error Code 11002: Host not found");
                return;
            }
            else if (StringUtils.Contains(browser.Html, "Error Code 10060: Connection timeout"))
            {
                Failed("Error Code 10060: Connection timeout");
                return;
            }
            else if (StringUtils.Contains(browser.Document.title, "Internet Explorer cannot display the webpage"))
            {
                Failed("Internet Explorer cannot display the webpage");
                return;
            }
            else if (StringUtils.Contains(browser.Html, "Impossibile raggiungere l'host richiesto. Fare clic sul collegamento sottostante per riprovare."))
            {
                Failed("Impossibile raggiungere l'host richiesto.");
            }

            string uri = StringUtils.CleanUri(e.Uri.AbsoluteUri);
            string baseUrl = StringUtils.CleanUri(source.BaseUrl);
            string loginUrl = StringUtils.CleanUri(source.LogInUrl);
            string balanceUrl = StringUtils.CleanUri(source.BalanceUrl);

            #region Clicksia

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "Clicksia")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                    Status = StatusCode.Completed;
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (strategy.CheckLogin(browser, source))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region ClixSense

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "ClixSense")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    //<span id=topbal>$0.55<span>50</span></span>

                    IHTMLElementCollection spans = HtmlUtils.GetElementCollection(browser.Document, "span");

                    foreach (IHTMLElement element in spans)
                    {
                        if (element.id == "topbal")
                        {
                            string value = element.innerText.Substring(element.innerText.IndexOf("$") + 1);

                            BalanceLog balanceLog = new BalanceLog()
                            {
                                Source = source.Name,
                                Value = decimal.Parse(value, CultureInfo.InvariantCulture.NumberFormat)
                            };
                            balanceLog.Save();

                            browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                            Status = StatusCode.Completed;
                            return;
                        }
                    }
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    //ClixSenseLogin()
                    //<input type="text" name="username" style="width:105px;font-size:12px" />
                    //<input name="password" type="password" style="width:105px;font-size:12px" />
                    //<input id="login" type="submit" onclick="submitFormTable(this, 'Please wait', 'login');" value="Login">

                    IHTMLElementCollection inputFields = HtmlUtils.GetElementCollection(browser.Document, "input");

                    foreach (IHTMLElement element in inputFields)
                    {
                        IHTMLInputElement inputElement = (IHTMLInputElement)element;

                        if (inputElement.name == "username")
                        {
                            inputElement.value = source.Username;
                        }
                        else if (inputElement.name == "password")
                        {
                            inputElement.value = source.Password;
                        }
                        else if (element.id == "login")
                        {
                            element.click();
                            return;
                        }
                    }
                    return;
                }
                else if (browser.Search("Login"))
                {
                    //ClixSenseCheckLogin();
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region DonkeyMails

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "DonkeyMails")
            {
                if (strategy.CheckLogin(browser, source))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    try
                    {
                        decimal balance = strategy.GetBalance(browser, source);

                        BalanceLog balanceLog = new BalanceLog()
                        {
                            Source = source.Name,
                            Value = balance
                        };
                        balanceLog.Save();

                        browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                        Status = StatusCode.Completed;
                        return;
                    }
                    catch (Exception ex)
                    {
                        Status = StatusCode.Failed;
                        Debug = ex.Message;
                        return;
                    }
                }
                //else if (StringUtils.Contains(uri, loginUrl))
                //{
                //    strategy.Login(browser, source);
                //    return;
                //}
            }

            #endregion

            #region EuroPinata

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "EuroPinata")
            {
                if (StringUtils.Contains(browser.Html, "Checking your browser before accessing www.euro-pinata.com."))
                {
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    Complete();
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (strategy.CheckLogin(browser, source))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
                else if (StringUtils.Contains(uri, "www.euro-pinata.com/index.php?view=login&a=y"))
                {
                    return;
                }
                else
                {
                    browser.Navigate(source.BalanceUrl);
                    return;
                }
            }

            #endregion

            #region GetPaidMail

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "GetPaidMail")
            {
                if (strategy.CheckLogin(browser, source))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    decimal referrals = strategy.GetReferrals(browser, source);

                    BalanceLog referralsLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = referrals,
                        Type = "Referrals"
                    };
                    referralsLog.Save();

                    Complete();
                    return;
                }
            }

            #endregion

            #region Incentria

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "Incentria")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    Complete();
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (strategy.CheckLogin(browser, source))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region JillsClickCorner

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "JillsClickCorner")
            {
                if (!string.IsNullOrEmpty(browser.Html) && (
                    StringUtils.Contains(browser.Html, "Sorry, we could not handle your previous request. Please refresh to try again")
                    ))
                {
                    Debug = "Server error";
                    Status = StatusCode.Failed;
                    return;
                }

                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                    Status = StatusCode.Completed;
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (strategy.CheckLogin(browser, source))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region MyFreeShares

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "MyFreeShares")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    Complete();
                    return;
                }
                // Members Area (after login)
                else if (StringUtils.Contains(uri, "www.myfreeshares.com/member.php"))
                {
                    IHTMLFormElement form = browser.GetForm("member1.php");
                    form.submit();
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (strategy.CheckLogin(browser, source))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region NeoBux

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "NeoBux")
            {
                if (uri == balanceUrl)
                {
                    //<a href="http://www.neobux.com/c/?vl=AD1FDFB723CF9043C8EA04C89D56F820" class="azul3 f_b" id="t_conta" style="font-weight:bold;font-size:14px;">umperio</a>
                    IHTMLElementCollection elements = HtmlUtils.GetElementCollection(browser.Document, "a");

                    foreach (IHTMLElement element in elements)
                    {
                        if (StringUtils.Contains(element.innerText, source.Username))
                        {
                            element.click();
                            return;
                        }
                    }
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    //<span id="t_saldo" style="cursor:default;"><span style="font-family:verdana;font-size:13px;color:#fff">&nbsp;$0<span style="font-size:11px;">.28</span><span style="font-size:9px;">8</span></span></span>

                    IHTMLElementCollection spans = HtmlUtils.GetElementCollection(browser.Document, "span");

                    foreach (IHTMLElement element in spans)
                    {
                        if (element.id == "t_saldo")
                        {
                            string value = element.innerText.Substring(element.innerText.IndexOf("$") + 1);

                            BalanceLog balanceLog = new BalanceLog()
                            {
                                Source = source.Name,
                                Value = decimal.Parse(value, CultureInfo.InvariantCulture.NumberFormat)
                            };
                            balanceLog.Save();

                            Complete();
                            return;
                        }
                    }
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    //NeoBuxLogin()
                    //<input type="text" name="ABF07C87B079F84FFBFD8ED712B0E1C0" id="Kf1" class="campotexto" style="width:155px;font-size:12px;" maxlength="14" onfocus="campo(this.id,14,/^[0-9a-zA-z]+$/)" onKeyUp="campo(this.id,14,/^[0-9a-zA-z]+$/)" onClick="campo(this.id,14,/^[0-9a-zA-z]+$/)" onblur="this.style.backgroundColor=''" placeholder="Username"/>
                    //<input type="text" name="AAA4974405C8B33EFC054BE3774EE2D2" id="Kf1" class="campotexto" style="width:155px;font-size:12px;" maxlength="14" onfocus="campo(this.id,14,/^[0-9a-zA-z]+$/)" onKeyUp="campo(this.id,14,/^[0-9a-zA-z]+$/)" onClick="campo(this.id,14,/^[0-9a-zA-z]+$/)" onblur="this.style.backgroundColor=''" placeholder="Username"/>
                    //<input type="password" name="AD99500C3BFE89ADF578632B10916E01" id="Kf2" class="campotexto" style="width:155px;font-size:12px;" maxlength="100" onfocus="campo(this.id,100,'')" onKeyUp="campo(this.id,100,'')" onClick="campo(this.id,100,'')" onblur="this.style.backgroundColor=''" placeholder="Password"/>
                    //<input type="password" name="AFBAB40B168E399169F844A807B74E11" id="Kf2" class="campotexto" style="width:155px;font-size:12px;" maxlength="100" onfocus="campo(this.id,100,'')" onKeyUp="campo(this.id,100,'')" onClick="campo(this.id,100,'')" onblur="this.style.backgroundColor=''" placeholder="Password"/>
                    //<a class="button medium green" onselectstart="return false;" onclick="verenvio(1)" id="botao_login"><span>send</span></a>

                    IHTMLElementCollection inputFields = HtmlUtils.GetElementCollection(browser.Document, "input");

                    foreach (IHTMLElement element in inputFields)
                    {
                        IHTMLInputElement inputElement = (IHTMLInputElement)element;

                        if (element.id == "Kf1")
                        {
                            inputElement.value = source.Username;
                        }
                        else if (element.id == "Kf2")
                        {
                            inputElement.value = source.Password;
                            inputElement.form.submit();
                            return;
                        }
                    }
                    return;
                }
                else if (browser.Search("Login"))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region No-Minimum

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "No-Minimum")
            {
                if (StringUtils.Contains(browser.Html, "Website offline"))
                {
                    Failed("Website offline");
                    return;
                }

                if (strategy.CheckLogin(browser, source))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                    Status = StatusCode.Completed;
                    return;
                }
            }

            #endregion

            #region ProBux

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "ProBux")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    try
                    {
                        decimal balance = strategy.GetBalance(browser, source);

                        BalanceLog balanceLog = new BalanceLog()
                        {
                            Source = source.Name,
                            Value = balance
                        };
                        balanceLog.Save();

                        Complete();
                        return;
                    }
                    catch (Exception ex)
                    {
                        Status = StatusCode.Failed;
                        Debug = ex.Message;
                        return;
                    }
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (browser.Search("Login"))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
            }

            #endregion

            #region SamBux

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "SamBux")
            {
                if (StringUtils.Contains(browser.Html, "500 Internal Server Error"))
                {
                    Failed("500 Internal Server Error");
                    return;
                }

                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    Complete();
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    strategy.Login(browser, source);
                    return;
                }
                else if (browser.Search("Login"))
                {
                    browser.Navigate(source.LogInUrl);
                    return;
                }
                else
                {
                    browser.Navigate(source.BalanceUrl);
                    return;
                }
            }

            #endregion

            #region VoBux

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "VoBux")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    Complete();
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    try
                    {
                        strategy.Login(browser, source);
                        return;
                    }
                    catch (Exception ex)
                    {
                        Failed(ex.Message);
                    }
                }
                //else if (browser.Search("Login"))
                //{
                //    browser.Navigate(source.LogInUrl);
                //    return;
                //}
                else
                {
                    browser.Navigate(source.BalanceUrl);
                    return;
                }
            }

            #endregion

            #region WordLinx

            else if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "WordLinx")
            {
                if (StringUtils.Contains(uri, balanceUrl))
                {
                    //<a href='account.php'>My Account</a> &nbsp;Cash: $0.0320 <a href=cashout.php>?</a>

                    string html = browser.Html;

                    string value = StringUtils.GetTokens(html, "{}Cash: ${} {}")[1];

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = decimal.Parse(value, CultureInfo.InvariantCulture.NumberFormat)
                    };
                    balanceLog.Save();

                    browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                    Status = StatusCode.Completed;
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    //WordLinxLogin()
                    //<input type="text" name="Username" value="" size="18">
                    //<input type="password" name="Password" VALUE="" size="18">
                    //<input type='submit' VALUE=" Login ">

                    IHTMLElementCollection inputFields = HtmlUtils.GetElementCollection(browser.Document, "input");

                    foreach (IHTMLElement element in inputFields)
                    {
                        IHTMLInputElement inputElement = (IHTMLInputElement)element;

                        if (inputElement.name == "Username")
                        {
                            inputElement.value = source.Username;
                        }
                        else if (inputElement.name == "Password")
                        {
                            inputElement.value = source.Password;
                        }
                        else if (inputElement.type == "submit")
                        {
                            element.click();
                            return;
                        }
                    }
                    return;
                }
            }

            #endregion

            #region YouRoMail

            if (StringUtils.Contains(uri, baseUrl) && !string.IsNullOrEmpty(source.Name) && source.Name == "YouRoMail")
            {
                if (strategy.CheckLogin(browser, source))
                {
                    //browser.Navigate(source.LogInUrl);
                    strategy.Login(browser, source);
                    return;
                }
                else if (StringUtils.Contains(uri, balanceUrl))
                {
                    decimal balance = strategy.GetBalance(browser, source);

                    BalanceLog balanceLog = new BalanceLog()
                    {
                        Source = source.Name,
                        Value = balance
                    };
                    balanceLog.Save();

                    browser.LoadCompleted -= BalanceCommand_LoadCompleted;

                    Status = StatusCode.Completed;
                    return;
                }
                else if (StringUtils.Contains(uri, loginUrl))
                {
                    browser.Navigate(source.LogInUrl);
                    //strategy.Login(browser, source);
                    return;
                }
            }

            #endregion

            //throw new Exception("Undefined strategy");
        }

        public override void Expire()
        {
            base.Expire();

            browser.Stop();

            browser.LoadCompleted -= BalanceCommand_LoadCompleted;
        }

        public override void Cancel()
        {
            base.Cancel();

            browser.Stop();

            browser.LoadCompleted -= BalanceCommand_LoadCompleted;
        }

        public override void Complete()
        {
            base.Complete();

            browser.Stop();

            browser.LoadCompleted -= BalanceCommand_LoadCompleted;
        }

        public override void Failed(string message)
        {
            base.Failed(message);

            browser.Stop();

            browser.LoadCompleted -= BalanceCommand_LoadCompleted;
        }
    }
}