using System;
using System.Windows.Forms;
using SafeMobileLib;
using Telerik.WinControls;
using Nini.Config;
using System.Drawing;
using Telerik.WinControls.UI;
using System.ComponentModel;
using System.Collections.Generic;
using System.Threading;
using System.Timers;

namespace SubscriberAndUserManager
{
    public partial class Login : Telerik.WinControls.UI.RadForm
    {
        private IConfigSource source = null;
        private string adminPassword;
        private RegistrationStatus regStatus = RegistrationStatus.NOT_REGISTERED;

        public static Color ButtonColor = Color.White;
        public static Color ButtonColorDisabled = Color.FromArgb(200, 200, 200);

        public DBuserManager dbUserManager;

        public enum RegistrationStatus { REGISTERED, NOT_REGISTERED, UNAUTHORIZED }

        public Login(RegistrationStatus registrationStatus)
        {
            regStatus = registrationStatus;
            InitializeComponent();
            FireWallException fw = new FireWallException();
            string name = System.AppDomain.CurrentDomain.FriendlyName;
            string path = System.Windows.Forms.Application.ExecutablePath;
            fw.checkFirewall(name, path);

            RadMessageBox.SetThemeName("TelerikMetroBlue");

            #region LANGUAGE POPULATE
            List<String> languages = new List<string>() { "English", "Chinese", "Czech", "French", "German", 
                "Italian", "Japanese", "Polish", "Portuguese", "Romanian", "Russian", "Serbian", "Spanish",
                "Swedish", "Turkish", "Arabic" };

            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_en);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_cn);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_cz);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_fr);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_de);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_it);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_jp);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_pl);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_pt);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_ro);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_ru);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_rs);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_es);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_se);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_tr);
            languageImages.Images.Add(SubscriberAndUserManager.Properties.Resources.f_ar);

            BindingList<DropListItem> langs = new BindingList<DropListItem>();
            DropListItem item = new DropListItem();

            for (int i = 0; i < languages.Count; i++ )
                langs.Add(new DropListItem() { Text = languages[i], Image = languageImages.Images[i] });

            cbLang.DataSource = null;
            cbLang.DataSource = langs;
            cbLang.DropDownListElement.ItemHeight = 36;
            #endregion


            #region THEMING
            Icon appIcon = SubscriberAndUserManager.Properties.Resources.sdadmin_icon;
            Image appImage = SubscriberAndUserManager.Properties.Resources.sd256PNG;
            Image backImage = SubscriberAndUserManager.Properties.Resources.bg_moto;
            String appName = "SafeDispatch Admin";
            Color errorColor = Color.LimeGreen;
            Color appNameForeColor = Color.WhiteSmoke;

            switch(MainForm.radioType)
            {
                case RADIOTYPE.SIMOCO:
                    {
                        backImage = SubscriberAndUserManager.Properties.Resources.bg_simoco;
                        appImage = SubscriberAndUserManager.Properties.Resources.simoco_setup_128;
                        appIcon = SubscriberAndUserManager.Properties.Resources.simoco_setup_64;
                        appName = "Simoco Admin";
                        errorColor = Color.Firebrick;
                        appNameForeColor = Color.WhiteSmoke;
                        break;
                    }
                case RADIOTYPE.EXCERA:
                    {
                        backImage = SubscriberAndUserManager.Properties.Resources.axys;
                        this.BackgroundImageLayout = ImageLayout.Stretch;
                        appImage = SubscriberAndUserManager.Properties.Resources.AXYS_TOOLS_ICON;
                        appIcon = SubscriberAndUserManager.Properties.Resources.AXYS_ICON;
                        appName = "AXYS Admin";
                        errorColor = Color.Firebrick;
                        appNameForeColor = Color.WhiteSmoke;
                        break;
                    }
                case RADIOTYPE.HYT:
                    {
                        backImage = SubscriberAndUserManager.Properties.Resources.bg_hytera;
                        appImage = SubscriberAndUserManager.Properties.Resources.SafeSyt;
                        appIcon = SubscriberAndUserManager.Properties.Resources.SYTADMIN64x;
                        appName = "SafeSyt Admin";
                        errorColor = Color.Firebrick;
                        appNameForeColor = Color.Black;
                        break;
                    }
                case RADIOTYPE.HARRIS:
                    {
                        backImage = SubscriberAndUserManager.Properties.Resources.bg_harris;
                        appImage = SubscriberAndUserManager.Properties.Resources.vision96PNG;
                        appIcon = SubscriberAndUserManager.Properties.Resources.visionSmall;
                        appName = "Vision Admin";
                        errorColor = Color.Black;
                        appNameForeColor = Color.Black;
                        break;
                    }
                case RADIOTYPE.ATLAS:
                    {
                        backImage = SubscriberAndUserManager.Properties.Resources.bg_atlas;
                        appImage = SubscriberAndUserManager.Properties.Resources.atlas256PNG;
                        appIcon = SubscriberAndUserManager.Properties.Resources.ATLASadmin32;
                        appName = "ATL25 Admin";
                        errorColor = Color.LimeGreen;
                        appNameForeColor = Color.WhiteSmoke;
                        break;
                    }
                case RADIOTYPE.LINX:
                case RADIOTYPE.LINXB:
                    {
                        appName = "LINX Admin";
                        break;
                    }
                default: break;
            }

            this.BackgroundImage = backImage;
            this.labelAppName.Text = appName.ToUpper();
            lbStatus.ForeColor = errorColor;
            labelAppName.ForeColor = appNameForeColor;
            this.pbIcon.Image = appImage;
            this.Icon = appIcon;

            #endregion


            //cbLang.SelectedIndex = 1;
            cbLang.SelectedIndex = 0;
            if ((MainForm.Langidx>=0)&&(MainForm.Langidx<cbLang.Items.Count))
                cbLang.SelectedIndex = MainForm.Langidx;
            Version v = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version;
            lbVersion.Text = "Version:   " + v.ToString();

            updateUI(registrationStatus);
            
            this.TopLevel = true;
            this.TopMost = true;
        }

        public void OnRegistrationStatusChanged(RegistrationStatus registrationStatus)
        {
            regStatus = registrationStatus;
            updateUI(regStatus);
        }

        private System.Timers.Timer timer;
        private void updateUI(RegistrationStatus regStatus)
        {
            timer?.Stop();

            if (regStatus == RegistrationStatus.REGISTERED)
            {
                try
                {
                    adminPassword = dbUserManager.getAdminPsw();
                    Console.WriteLine("admin=" + adminPassword);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("DB failed:" + ex.ToString());
                    RadMessageBox.Show(MainForm.returnLNGString("dberr"), MainForm.returnLNGString("err"), MessageBoxButtons.OK, RadMessageIcon.Exclamation);
                    //CustomMessageBox.Show(CustomMessageBoxType.exclamation, MainForm.returnLNGString("dberr"), MainForm.returnLNGString("err"));00
                    
                    Application.Exit();
                }
                tbPassword.Enabled = true;
                btnLogin.Enabled = true;
                btnLogin.Text = "Login";

                //DialogResult = DialogResult.No;
                if (adminPassword == "")
                    lbStatus.Text = "User \"administrator\" not found in DB !!!";
            }
            else if (regStatus == RegistrationStatus.UNAUTHORIZED)
            {
                lbStatus.Visible = false;
                tbPassword.Enabled = false;
                btnLogin.Text = "Unregistered";
            }
            else if (regStatus == RegistrationStatus.NOT_REGISTERED)
            {
                lbStatus.Visible = false;
                tbPassword.Enabled = false;
                btnLogin.Text = "Registering";


                timer = new System.Timers.Timer();
                // Tell the timer what to do when it elapses
                timer.Elapsed += delegate(object source, ElapsedEventArgs e) 
                {
                    btnLogin?.Invoke((MethodInvoker)delegate
                    {

                        if (btnLogin.Text.ToString().Contains("..."))
                            btnLogin.Text = btnLogin.Text.ToString().Replace(".", "");
                        else
                            btnLogin.Text += ".";
                    });
                };
                // Set it to go off every five seconds
                timer.Interval = 500;
                // And start it        
                timer.Enabled = true;

            }

            btnLogin.Enabled = false;
        }


        private void btnLogin_Click(object sender, EventArgs e)
        {
            if (regStatus != RegistrationStatus.REGISTERED)
            {
                DialogResult = DialogResult.OK;
                MainForm.Langidx = cbLang.SelectedIndex;
                SaveConfig();
                this.Close();
            }
            else
            {
                if (adminPassword == tbPassword.Text)
                {
                    DialogResult = DialogResult.OK;
                    MainForm.Langidx = cbLang.SelectedIndex;
                    SaveConfig();
                    this.Close();
                }
                else
                {
                    lbStatus.Text = "Incorect password!!!";
                    lbStatus.Visible = Visible;
                    tbPassword.Text = "";
                }
            }
        }

        private void tbPassword_KeyPress(object sender, KeyPressEventArgs e)
        {
            if ((int)e.KeyChar == 13) btnLogin.PerformClick();
        }

        public void SaveConfig()
        {
            try
            {
                source = new IniConfigSource(MainForm.CFG_FILE);

                if (source.Configs["Language"] == null)
                    source.Configs.Add("Language");

                source.Configs["Language"].Set("Language", MainForm.Langidx.ToString());
                source.Save();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.ToString());
            }
        }


        private void Login_FormClosing(object sender, FormClosingEventArgs e)
        {
            dbUserManager?.CloseConnection();
        }
        private void Login_FormClosed(object sender, FormClosedEventArgs e)
        {
            if(DialogResult != DialogResult.OK)
                System.Windows.Forms.Application.Exit();
        }

        private void Login_Shown(object sender, EventArgs e)
        {
            tbPassword.Focus();
        }

        /// <summary>
        /// Display the image and text for each unit in the combobox
        /// </summary>
        private void cbLang_ItemDataBound(object sender, ListItemDataBoundEventArgs args)
        {
            // display the text and image for each item in the comboBox
            DropListItem item = (DropListItem)args.NewItem.DataBoundItem;
            args.NewItem.Text = item.Text;
            args.NewItem.Image = item.Image;
        }


        /// <summary>
        /// intercept the changes in password text in order to enable or disable the 
        /// login button
        /// </summary>
        private void tbPassword_TextChanged(object sender, EventArgs e)
        {
            if (tbPassword.Text.Length > 0)
                btnLogin.Enabled = true;
            else
                btnLogin.Enabled = false;
        }


        /// <summary>
        /// Change the buttons background color for the animation buttons depending on their enabled/disabled
        /// state
        /// </summary>
        private void btnLogin_EnabledChanged(object sender, EventArgs e)
        {
            if (((RadButton)sender).Enabled)
                ((RadButton)sender).ButtonElement.ButtonFillElement.BackColor = ButtonColor;
            else
                ((RadButton)sender).ButtonElement.ButtonFillElement.BackColor = ButtonColorDisabled;

        }

        /// <summary>
        /// Select all text when password field get focused
        /// </summary>
        private void tbPassword_Enter(object sender, EventArgs e)
        {
            tbPassword.SelectAll();
        }

    }

}