using System;

using System.Windows.Data;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using Iri.Modernisation.Data.Models;

using Iri.Modernisation.Controls.ViewModel;

using Iri.Modernisation.BaseMVVM.Commands;

using System.IO;

namespace Iri.Modernisation.Controls.View

{

    public partial class BookTimeLine : UserControl

    {

        public BookTimeLine()

        {

            InitializeComponent();

            TimeStripsPanel.SizeChanged += new SizeChangedEventHandler(TimeStripsPanel_SizeChanged);

            BookTimeLineSlider.ThumbDragStarted += new EventHandler<EventArgs>(TimeSlider_ThumbDragCompleted);

            BookTimeLineSlider.ThumbDragCompleted += new EventHandler<EventArgs>(TimeSlider_ThumbDragCompleted);

            BookTimeLineSlider.MouseLeftButtonUp += new MouseButtonEventHandler(BookTimeLineSlider_MouseLeftButtonUp);

            Commands.AnnotationMaker.NewAnnotationFinished.Executed += new EventHandler<SLExtensions.Input.ExecutedEventArgs>(NewAnnotationFinished_Executed);

        }

        void saveAnnotationsButton_Click(object sender, RoutedEventArgs e)

        {

            SaveFileDialog mySaveDialog = new SaveFileDialog();

            mySaveDialog.Filter = "Ldt File (.ldt)|*.ldt|All Files|*.*";

            bool? ret = mySaveDialog.ShowDialog();

            if (ret == true)

            {

                VideoBookUploader.UpdateAnnotation(((BookTimeLineVM)DataContext).SelectedBook, new StreamWriter(mySaveDialog.OpenFile()));

            }

        }

        private bool _saveVideoViewerState { get; set; }

        private void TimeSlider_ThumbDragCompleted(object sender, EventArgs e)

        {

            if (_saveVideoViewerState)

            {

                ((BookTimeLineVM)DataContext).ViewModelVideoViewer.Play();

            }

        }

        private void TimeSlider_ThumbDragStarted(object sender, EventArgs e)

        {

            _saveVideoViewerState = ((BookTimeLineVM)DataContext).ViewModelVideoViewer.IsPLayed;

            ((BookTimeLineVM)DataContext).ViewModelVideoViewer.Pause();

        }

        private void NewAnnotationFinished_Executed(object sender, SLExtensions.Input.ExecutedEventArgs e)

        {

            Draw();

        }

        private void BookTimeLineSlider_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)

        {

            Commands.TimeChange.Execute(BookTimeLineSlider.Value,DataContext);

        }

        private void TimeStripsPanel_SizeChanged(object sender, SizeChangedEventArgs e)

        {

            Draw();

        }

        public void Draw()

        {

            BookTimeLineVM VM = (BookTimeLineVM)DataContext;

            BookTimeLineElementPanel.Children.Clear();

            BookTimeLineAnnotationPanel.Children.Clear();

            foreach (List<SegmentIndex> LIndex in VM.SegmentIndex)

            {

                foreach (SegmentIndex Index in LIndex)

                {

                    PolemicElementControl pol = new PolemicElementControl();

                    pol.SetValue(Canvas.ZIndexProperty, 10);

                    pol.DataContext = new PolemicElementVM(Index);

                    BookTimeLineElementPanel.Children.Add(pol);

                    double timeleft = (double)((Index.TimerIn.TotalMilliseconds  / BookTimeLineVM.ratioPixMs) * ScaleTimeLine.Value);

                    Canvas.SetLeft(pol,timeleft);

                    pol.Width = (Index.Duration.TotalMilliseconds / BookTimeLineVM.ratioPixMs) * ScaleTimeLine.Value;

                }

            }

            int basi = 0;

            foreach (List<Annotation> LAnnotation in VM.Annotations)

            {

                foreach (Annotation Annotation in LAnnotation)

                {

                    PolemicElementControl pol = new PolemicElementControl();

                    pol.SetValue(Canvas.ZIndexProperty, 10);

                    pol.DataContext = new PolemicElementVM(Annotation);

                    Canvas.SetLeft(pol, (Annotation.TimerIn.TotalMilliseconds / BookTimeLineVM.ratioPixMs)* ScaleTimeLine.Value);

                    /** It's TETRIS time **/

                    foreach (PolemicElementControl lockedControl in BookTimeLineAnnotationPanel.Children)

                    {

                        if (

                            ((PolemicElementVM)pol.DataContext).TimerIn >= ((PolemicElementVM)lockedControl.DataContext).TimerIn && ((PolemicElementVM)pol.DataContext).TimerIn <= ((PolemicElementVM)lockedControl.DataContext).TimerOut

                            || ((PolemicElementVM)pol.DataContext).TimerOut >= ((PolemicElementVM)lockedControl.DataContext).TimerIn && ((PolemicElementVM)pol.DataContext).TimerOut <= ((PolemicElementVM)lockedControl.DataContext).TimerOut

                           )

                        {

                            int actualTop = (int)Canvas.GetTop(lockedControl);

                            if (basi <= actualTop)

                           {

                                basi += 10;

                           }

                        }

                    }

                    Canvas.SetTop(pol, basi);

                  /***********************/

                 //   pol.Width = (Annotation.Duration.TotalMilliseconds * ScaleTimeLine.Value) / VM.TotalDuration;

                    pol.Width = (Annotation.Duration.TotalMilliseconds / BookTimeLineVM.ratioPixMs)* ScaleTimeLine.Value;

                    BookTimeLineAnnotationPanel.Children.Add(pol);

                    basi = 0;

                }

            }

            BookTimeLineElementPanel.UpdateLayout();

        }

    }

}