using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Xml;
using System.Windows.Forms;
using TradeIdeas.XML;
using System.Globalization;
using System.Threading;

namespace TradeIdeas.TIProGUI.CBT
{
    [ToolboxItem(false)]
    public partial class Example : UserControl, IChild
    {
        string IChild.Name { get { return "Example"; } }
        Control IChild.Body { get { return this; } }
        bool IChild.CanShowExample { get { return false; } }
        void IChild.OnShow()
        {   // We could search and try to find a radio button that matches
            // the current min and max.  I don't know how interesthing that is.
            // In practice, OnShow() is aimed at the tab sheet we got to after
            // leaving the Example tab sheet.
        }

        private readonly IContainer _container;

        public Example(IContainer container, List<XmlNode> examples)
        {
            _container = container;
            InitializeComponent();
            RadioButton previous = allStocksRadioButton;
            foreach (XmlNode example in examples)
            {
                RadioButton current = new RadioButton();
                current.Parent = this;
                current.Visible = true;
                current.Left = allStocksRadioButton.Left;
                current.Top = previous.Top + previous.Height + allStocksRadioButton.Top;
                current.Text = example.PropertyForCulture("DESCRIPTION", "***");
                current.Tag = example;
                current.AutoSize = true;
                current.CheckedChanged += RadioButton_CheckedChanged;
                previous = current;
            }
            _container.MaxTextBox.TextChanged += new EventHandler(TextBox_TextChanged);
            _container.MinTextBox.TextChanged += new EventHandler(TextBox_TextChanged);
        }

        static public Dictionary<String, Creator> GetAll()
        {
            Dictionary<String, Creator> result = new Dictionary<string, Creator>();
            foreach (XmlNode exampleSet in ConfigDemoUserControl.ConfigDemoXml.Node("EXAMPLE_SETS").Enum())
            {
                List<string> codes = new List<string>();
                List<XmlNode> examples = new List<XmlNode>();
                foreach (XmlNode node in exampleSet)
                {
                    switch (node.SafeName())
                    {
                        case "FILTER":
                            codes.Add(node.Property("CODE"));
                            break;
                        case "EXAMPLE":
                            examples.Add(node);
                            break;
                    }
                }
                foreach (string code in codes)
                    result[code] = delegate(IContainer container) { return new Example(container, examples); };
            }
            return result;
        }

        private const String PLACEHOLDER = "⁂";

        /// <summary>
        /// The examples are stored in English, i.e. "1.00" for 1, "1.50" for 1 and a half.
        /// Change these to match the user's language.  We immediately interpret them in the 
        /// user's language so this is required.
        /// </summary>
        /// <param name="asEnglish"></param>
        /// <returns></returns>
        private String FixLanguage(String asEnglish)
        {
            NumberFormatInfo numberFormat = NumberFormatInfo.CurrentInfo;
            return asEnglish.Replace(",", PLACEHOLDER).Replace(".", numberFormat.NumberDecimalSeparator).Replace(PLACEHOLDER, numberFormat.NumberGroupSeparator);
        }

        private void RadioButton_CheckedChanged(object sender, EventArgs e)
        {
            if (_ignoreChanges)
                return;
            RadioButton rb = (RadioButton)sender;
            if (!rb.Checked)
                return;
            XmlNode example = rb.Tag as XmlNode;
            _ignoreChanges = true;
            _container.MinTextBox.Text = FixLanguage(example.Property("MIN"));
            _container.MaxTextBox.Text = FixLanguage(example.Property("MAX"));
            _ignoreChanges = false;
            _container.ShowExample();
        }

        private bool _ignoreChanges;

        void TextBox_TextChanged(object sender, EventArgs e)
        {
            if (_ignoreChanges)
                return;
            _ignoreChanges = true;
            allStocksRadioButton.Checked = true;
            allStocksRadioButton.Checked = false;
            _ignoreChanges = false;
        }


    }
}