using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Input;

using BS.Shared.DataContracts;
using BS.Shared.DataContracts.ClientPartials;

namespace BeWo.View.Controls
{
    public partial class ComboBoxTreeViewControl
    {
        private SupportConceptGoalDC lastCheckedSupportConceptGoal;

        public double ParentWindowHeight
        {
            get { return (double) GetValue(ParentWindowHeightProperty); }
            set { SetValue(ParentWindowHeightProperty, value); }
        }

        public static readonly DependencyProperty ParentWindowHeightProperty = DependencyProperty.Register("ParentWindowHeight", typeof (double), typeof (ComboBoxTreeViewControl), new FrameworkPropertyMetadata(500.0));


        public List<SupportConceptGoalDC> TreeViewSourceList
        {
            get { return (List<SupportConceptGoalDC>)GetValue(ListProperty); }
            set
            {
                SetValue(ListProperty, value);
                ShowCheckedValues();
            }
        }

        public static readonly DependencyProperty ListProperty = DependencyProperty.Register("TreeViewSourceList", typeof (List<SupportConceptGoalDC>), typeof (ComboBoxTreeViewControl), new FrameworkPropertyMetadata(new List<SupportConceptGoalDC>()));

        public ComboBoxTreeViewControl()
        {
            InitializeComponent();
            DataContext = this;
        }

        private void ShowCheckedValues()
        {
	        GoalCount = 0;
            var selectedGoals = GetSelectedGoals();

            var allSelected = selectedGoals.Count == GoalCount && GoalCount > 0;
            
            var ToolTipString = selectedGoals.Aggregate(string.Empty, (s, dc) => s + (dc.DisplayName + "; "));

            DeSelectAllCheckBox.IsChecked = allSelected;

            Imitationheader.Text = ToolTipString;

            if (string.IsNullOrWhiteSpace(ToolTipString))
            {
                Imitationheader.ToolTip = null;
                return;
            }

            var splittedToolTip = ToolTipString.Split(';');
            ToolTipString = string.Empty;

            foreach (var item in splittedToolTip.Where(x => x != " "))
            {
                ToolTipString += item.Trim(' ');

                if (splittedToolTip.Where(x => x != " ").ToList().IndexOf(item) < splittedToolTip.Count(x => x != " ") - 1)
                {
	                ToolTipString += "\n";
                }
            }

            Imitationheader.ToolTip = ToolTipString;
        }

        private List<ValueListEntryDC> GetSelectedGoals()
        {
            var goals = new List<ValueListEntryDC>();

            AddCheckedGoals(TreeViewSourceList, goals);

            return goals;
        }

        private int GoalCount;
        private void AddCheckedGoals(IEnumerable<SupportConceptGoalDC> goals, ICollection<ValueListEntryDC> selectedGoals)
        {
            foreach (var item in goals)
            {
                if (item.Children == null || item.Children.Count == 0)
                {
                    //if (item.GoalEntryDC.Type.Equals(ValueListEntryType.SupportConceptGoalType) || item.GoalEntryDC.Type.Equals(ValueListEntryType.SupportConceptIndividualGoalType))
                    //{
                        GoalCount++;
                        if (item.IsChecked)
                        {
                            selectedGoals.Add(item.GoalEntryDC);
                        }
                    //}
                }
                else
                {
                    AddCheckedGoals(item.Children, selectedGoals);
                }
            }
        }

        private void OpenPopUpBtnClick(object sender, EventArgs e)
        {
            openPopup();
        }

        private void openPopup()
        {
            TreeViewPopup.Placement        = PlacementMode.RelativePoint;
	        TreeViewPopup.PlacementTarget  = Imitationheader;
            TreeViewPopup.VerticalOffset   = Imitationheader.Height;
            TreeViewPopup.HorizontalOffset = 0;
            TreeViewPopup.MinWidth         = Imitationheader.Width;
            TreeViewPopup.IsOpen           = true;

			if (ParentWindowHeight == 0)
			{
				ParentWindowHeight = 500;
			}

            OpenPopUpBtn.IsEnabled = false;
        }

        private void PopUpClosedEvent(object sender, EventArgs eventArgs)
        {
            ShowCheckedValues();

            cbtv_search.Text       = string.Empty;
            OpenPopUpBtn.IsEnabled = true;
        }

        private void ApplyBtnClose(object sender, EventArgs e)
        {
            TreeViewPopup.IsOpen = false;
        }

        public void ResetControl()
        {
            TreeViewSourceList            = new List<SupportConceptGoalDC>();
            Imitationheader.Text          = string.Empty;
            Imitationheader.ToolTip       = null;
            DeSelectAllCheckBox.IsChecked = false;
        }

        private void Tree1_OnLoaded(object sender, RoutedEventArgs e)
        {
            if (ParentWindowHeight >= TreeViewPopup.VerticalOffset)
            {
	            TreeViewPopup.MaxHeight = ParentWindowHeight - TreeViewPopup.VerticalOffset - ParentWindowHeight/4;
            }
        }

        private void Bd_OnClick(object sender, RoutedEventArgs e)
        {
            ShowCheckedValues();

            var cb = sender as CheckBox;
            if (cb != null)
            {
                lastCheckedSupportConceptGoal = cb.Tag as SupportConceptGoalDC;

                SetPopUpVisible(cb.IsChecked.Value);
            }
        }

        private void SetPopUpVisible(bool visible)
        {
            if (lastCheckedSupportConceptGoal == null)
            {
                return;
            }

            if (lastCheckedSupportConceptGoal.Children != null && lastCheckedSupportConceptGoal.Children.Count > 0)
            {
                return;
            }
            RatingPopup.IsOpen = visible;

            RadioButtonNone.IsChecked = true;
            if (lastCheckedSupportConceptGoal.GoalEntryDC.Rating != null)
            {
                switch (lastCheckedSupportConceptGoal.GoalEntryDC.Rating.Value)
                {
                    case 0:
                        RadioButton0.IsChecked = true;
                        break;
                    case 1:
                        RadioButton1.IsChecked = true;
                        break;
                    case 2:
                        RadioButton2.IsChecked = true;
                        break;
                    case 3:
                        RadioButton3.IsChecked = true;
                        break;
                    case 4:
                        RadioButton4.IsChecked = true;
                        break;
                    case 8:
                        RadioButton8.IsChecked = true;
                        break;
                    case 9:
                        RadioButton9.IsChecked = true;
                        break;

                }
            }
        }

        private void DeSelectAllOnClick(object sender, RoutedEventArgs e)
        {
            var cb = (CheckBox)sender;

            if (!cb.IsChecked.HasValue)
            {
	            return;
            }

            foreach (var item in TreeViewSourceList)
            {
                item.IsChecked = cb.IsChecked.Value;

                foreach (var item2 in item.Children)
                {
	                item2.IsChecked = cb.IsChecked.Value;
                }
            }

            ShowCheckedValues();
        }

        private void BdText_OnMouseDown(object sender, MouseButtonEventArgs e)
        {
            var SupportConceptGoal = ((TextBlock)sender).Tag as SupportConceptGoalDC;

	        if(SupportConceptGoal != null)
	        {
		        SupportConceptGoal.IsChecked = !SupportConceptGoal.IsChecked;

	            lastCheckedSupportConceptGoal = SupportConceptGoal;

	            SetPopUpVisible(SupportConceptGoal.IsChecked);
            }

	        ShowCheckedValues();
        }


        //private void button_checkAllLeistungen_Click(object sender, RoutedEventArgs e)
        //{
        //    CheckAllLeistungTreeItems(true);
        //}

        //private void button_uncheckAllLeistungen_Click(object sender, RoutedEventArgs e)
        //{
        //    CheckAllLeistungTreeItems(false);
        //}

        private void button_aufklappenAllLeistungen_Click(object sender, RoutedEventArgs e)
        {
            SwitchAllLeistungTreeItems(true);
        }

        private void button_zuklappenAllLeistungen_Click(object sender, RoutedEventArgs e)
        {
            SwitchAllLeistungTreeItems(false);
        }

        //private void CheckAllLeistungTreeItems(bool check)
        //{
        //    var allItems = Tree1.ItemsSource;

        //    foreach (var item in allItems)
        //    {
        //        SupportConceptGoalDC goal = item as SupportConceptGoalDC;
        //        goal.IsChecked = check;
        //    }
        //}

        private void SwitchAllLeistungTreeItems(bool check)
        {
            Style stylee = new Style
            {
                TargetType = typeof(TreeViewItem)
            };

            stylee.Setters.Add(new Setter(TreeViewItem.IsExpandedProperty, check));
            Tree1.ItemContainerStyle = stylee;
        }

        private void RatingButton_OnClick(object sender, RoutedEventArgs e)
        {
            if (lastCheckedSupportConceptGoal != null)
            {
                RadioButton rb = sender as RadioButton;
                if (rb.Tag != null)
                {
                    int rating = 0;

                    if (Int32.TryParse(rb.Tag.ToString(), out rating))
                    {
                        lastCheckedSupportConceptGoal.SetRating(rating);
                    }
                }
            }
            RatingPopup.IsOpen = false;
        }
    }
}