using Practics.Model;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Xaml.Permissions;
using System.Windows.Markup;
using System.Text.RegularExpressions;


namespace Practics
{
    /// <summary>
    /// Interaction logic for TicketWindow.xaml
    /// </summary>
    public partial class TicketWindow : Window
    {

        User user;

        Model.Model model = Model.Model.ModelInstance;
        public TicketWindow(User user)
        {
            InitializeComponent();
            tbUserName.Text = user.ShortName;
            this.user = user;
            //model.InitDataTableProblemTypes();
            cbProblemType.ItemsSource = model.DataTableProblemTypes.DefaultView;
            cbProblemType.DisplayMemberPath = "NameProblemType";
            cbProblemType.SelectedIndex = 0;
            cbProblemType.SelectedValue = 0;
            cbProblemType.SelectedValuePath = "ID";

            //model.InitDataTableStatuses();
            model.InitProblemsByUserID(this.user.Id);

            dgUserTickets.ItemsSource = model.DataTableProblemsByID.DefaultView;
            
            dgcbcStatus.ItemsSource = model.DataTableStatuses.DefaultView;
            dgcbcStatus.DisplayMemberPath = "name";
            dgcbcStatus.SelectedValuePath = "Id";
            //tbProblemDescribe2.DataContext = model.dataTable.DefaultView;
            
            

            

        }

        private void btnSendProblem_Click(object sender, RoutedEventArgs e)
        {
            string pcNamePattern = @"^[a-zA-Z]{3,4}-[a-zA-Z]{2,3}\d{2,3}$";
            if (tbProblemName.Text == "")
            {
                MessageBox.Show("Заполните поле наименования проблемы");
                return;
            }
            if (tbPCName.Text == "")
            {
                MessageBox.Show("Заполните поле имя компьютера");
                return;
            }
            if (!Regex.IsMatch(tbPCName.Text, pcNamePattern))
            {
                MessageBox.Show("Имя компьютера не соответствует требуемому формату (пример: ABC-DE12)");
                return;
            }
            if (tbProblemDescribe.Text == "")
            {
                MessageBox.Show("Заполните поле подробного описания проблемы");
                return;
            }
            model.AddProblemToDB(user.Id, tbProblemName.Text, tbPCName.Text, tbProblemDescribe.Text, Convert.ToInt32(cbProblemType.SelectedValue.ToString()));
            clearWindowField();            
            MessageBox.Show("Сообщение отправлено!");
        }


        void clearWindowField()
        {
            tbPCName.Text = string.Empty;
            tbProblemName.Text = string.Empty;  
            tbProblemDescribe.Text = string.Empty;
        }

        private void dgUserTickets_Selected(object sender, RoutedEventArgs e)
        {

        }

        int currentID=-1;
        DataRow currentRow = null;
        private void dgUserTickets_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (dgUserTickets.SelectedItems != null)
            {
                DataGridRow row = (dgUserTickets.SelectedItem as DataGridRow);
                DataRowView selectedRow = (DataRowView)dgUserTickets.SelectedItem;
                if (selectedRow != null)
                {
                    //DataRow dataTableRow = selectedRow.Row;
                    currentRow = selectedRow.Row;
                    currentID = Convert.ToInt32(currentRow["ID"]);
                    
                    rtbChat.Document.Blocks.Clear();
                    /*
                    using (MemoryStream memoryStream = new MemoryStream())
                    {
                        using (StreamWriter writer = new StreamWriter(memoryStream))
                        {
                            {
                                writer.Write(currentRow["Chat"]);
                                writer.Flush();
                                memoryStream.Position = 0;
                                TextRange textRange = new TextRange(rtbChat.Document.ContentStart, rtbChat.Document.ContentEnd);
                                textRange.Load(memoryStream, DataFormats.Xaml);
                            }
                        }
                    }*/
                    model.LoadChatToRichTextBox(currentRow, rtbChat);
                }
            }
        }


        private void btnSendMessage_Click(object sender, RoutedEventArgs e)
        {
            if (currentRow == null) return;
            string currentTime = DateTime.Now.ToString("dd-MM-yyyy HH:mm:ss");
            Paragraph paragraph = new Paragraph();

            Run timeRun = new Run(currentRow["LastName"].ToString()+":"+currentTime)
            {
                FontWeight = FontWeights.Bold,
                Foreground=new SolidColorBrush(Colors.Red)
            };
            
            paragraph.Inlines.Add(timeRun);
            Run message = new Run("\r\n"+tbMessage.Text);
            paragraph.Inlines.Add(message);
            rtbChat.Document.Blocks.Add(paragraph);
            
            string documentContent= model.RichTextBoxContentToString(rtbChat);
            currentRow["Chat"] = documentContent;
            model.ChatUpdate(currentID, documentContent);
             
        }



        private void btnRefillProblems_Click(object sender, RoutedEventArgs e)
        {
            model.RefillProblemsById();
        }

        private void btnExit_Click(object sender, RoutedEventArgs e)
        {
            MainWindow mainWindow = new MainWindow();
            mainWindow.Show();
            this.Close();
        }

        private void TabItem_GotFocus(object sender, RoutedEventArgs e)
        {
            model.RefillProblemsById();
        }
    }
}