using System;
using System.Collections.Generic;
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.Navigation;
using System.Windows.Shapes;

namespace Tango.Visuals.Components
{
    /// <summary>
    /// Interaction logic for TicksAxis.xaml
    /// </summary>
    internal partial class XAxisTicks : UserControl
    {

        #region Constructors

        /// <summary>
        /// Initializes a new instance of the <see cref="XAxisTicks"/> class.
        /// </summary>
        public XAxisTicks()
        {
            InitializeComponent();
            this.Loaded += TicksAxis_Loaded;
        }
        
        #endregion

        #region Event Handlers

        /// <summary>
        /// Handles the Loaded event of the TicksAxis control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param>
        private void TicksAxis_Loaded(object sender, RoutedEventArgs e)
        {
            DrawTicks();
        }
        
        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets the ticks.
        /// </summary>
        /// <value>
        /// The ticks.
        /// </value>
        public int Ticks
        {
            get { return (int)GetValue(TicksProperty); }
            set { SetValue(TicksProperty, value); }
        }
        public static readonly DependencyProperty TicksProperty =
            DependencyProperty.Register("Ticks", typeof(int), typeof(XAxisTicks), new PropertyMetadata(11));

        /// <summary>
        /// Gets or sets the tick template.
        /// </summary>
        /// <value>
        /// The tick template.
        /// </value>
        public DataTemplate TickTemplate
        {
            get { return (DataTemplate)GetValue(TickTemplateProperty); }
            set { SetValue(TickTemplateProperty, value); }
        }
        public static readonly DependencyProperty TickTemplateProperty =
            DependencyProperty.Register("TickTemplate", typeof(DataTemplate), typeof(XAxisTicks), new PropertyMetadata(null));
        
        #endregion

        #region Methods

        /// <summary>
        /// Draws the ticks.
        /// </summary>
        private void DrawTicks()
        {
            grid.Children.Clear();
            grid.ColumnDefinitions.Clear();

            for (int i = 0; i < Ticks; i++)
            {
                if (i == Ticks - 1)
                {
                    var rec = AddTick(i, i);
                    rec.HorizontalAlignment = System.Windows.HorizontalAlignment.Right;
                    grid.Children.Add(rec);
                }
                else
                {

                    ColumnDefinition column = new ColumnDefinition();
                    column.Width = new GridLength(1, GridUnitType.Star);
                    grid.ColumnDefinitions.Add(column);
                    var rec = AddTick(i, i);
                    grid.Children.Add(rec);
                }
            }
        }

        /// <summary>
        /// Adds the tick.
        /// </summary>
        /// <param name="value">The value.</param>
        /// <param name="index">The index.</param>
        /// <returns></returns>
        private ContentControl AddTick(double value, int index)
        {
            ContentControl tick = new ContentControl();
            tick.HorizontalAlignment = System.Windows.HorizontalAlignment.Left;
            tick.VerticalAlignment = System.Windows.VerticalAlignment.Stretch;
            Grid.SetColumn(tick, index);

            if (TickTemplate != null)
            {
                tick.ContentTemplate = TickTemplate;
            }

            return tick;
        }
        
        #endregion

    }
}