using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using TradeIdeas.TIQData;
using TradeIdeas.MiscSupport;

namespace TradeIdeas.TIQ.GUI
{
    public static class KeithMenzelAlertWindow
    {
        /// <summary>
        /// This exists for the sole purpose of overriding the GetValue method.
        /// The rows are dictionaries, and the built in classes are not smart enough to read from a
        /// dictionary.
        /// It seems like you could say symbolColumn.DataPropertyName = "[symbol]";.  That would work
        /// in WPF.  However, this table isn't as smart.  You can only look for simple properties.
        /// You can't look for an index.
        /// </summary>
        private class DictionaryStringCell : DataGridViewTextBoxCell
        {
            public string DictionaryKey { get; set; }

            protected override object GetValue(int rowIndex)
            {
                if (rowIndex < 0)
                    return null;
                BindingList<RowData> list =
                    DataGridView.DataSource as BindingList<RowData>;
                if (null == list)
                    return null;
                if (rowIndex >= list.Count)
                    return null;
                RowData row = list[rowIndex];
                if (null == row)
                    return null;
                return row.GetAsObject(DictionaryKey);
            }

            public override object Clone()
            {
                DictionaryStringCell result = base.Clone() as DictionaryStringCell;
                result.DictionaryKey = DictionaryKey;
                return result;
            }
        }

        private class PriceStringCell : DictionaryStringCell
        {
            private string CachedValue;

            public PriceStringCell()
            {
                Style.Alignment = DataGridViewContentAlignment.MiddleRight;
            }

            protected override object GetFormattedValue(object value, int rowIndex, ref DataGridViewCellStyle cellStyle, TypeConverter valueTypeConverter, TypeConverter formattedValueTypeConverter, DataGridViewDataErrorContexts context)
            {
                if (null == CachedValue)
                {
                    try
                    {
                        double asDouble;
                        string fromServer = (string)GetValue(rowIndex);
                        if (null == fromServer)
                            // This is explicitly legal.
                            CachedValue = "";
                        else if (!Double.TryParse(fromServer, out asDouble))
                            CachedValue = "";
                        else
                            CachedValue = asDouble.ToString("0.00");  // 2 places past decimal
                    }
                    catch 
                    {
                        CachedValue = "***";
                    }
                }
                return CachedValue;
            }
        }

        public static TraditionalAlertsForm KeithMenzelForm()
        {
            TraditionalAlertsForm result = new TraditionalAlertsForm();
            DictionaryStringCell timeCellTemplate = new DictionaryStringCell();
            timeCellTemplate.DictionaryKey = "time";
            DataGridViewColumn timeColumn = new DataGridViewColumn(timeCellTemplate);
            //timeColumn.DataPropertyName = "[time]";
            timeColumn.ReadOnly = true;
            timeColumn.HeaderText = "Time";
            timeColumn.Width = timeColumn.Width / 2;
            result.DataGridView.Columns.Add(timeColumn);
            DictionaryStringCell symbolCellTemplate = new DictionaryStringCell();
            symbolCellTemplate.DictionaryKey = "symbol";
            DataGridViewColumn symbolColumn = new DataGridViewColumn(symbolCellTemplate);
            //symbolColumn.DataPropertyName = "[symbol]";
            symbolColumn.ReadOnly = true;
            symbolColumn.HeaderText = "Symbol";
            symbolColumn.Width = symbolColumn.Width / 2;
            result.DataGridView.Columns.Add(symbolColumn);

            PriceStringCell priceCellTemplate = new PriceStringCell();
            priceCellTemplate.DictionaryKey = "price";
            DataGridViewColumn priceColumn = new DataGridViewColumn(priceCellTemplate);
            priceColumn.ReadOnly = true;
            priceColumn.HeaderText = "Price";
            priceColumn.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleRight;
            priceColumn.Width = priceColumn.Width * 2 / 3;
            result.DataGridView.Columns.Add(priceColumn);
            //result.DataGridView.ColumnCount = 2;
            //result.DataGridView.Columns[0].HeaderText = "Time";
            //result.DataGridView.Columns[1].HeaderText = "Symbol";
            return result;
        }

        public static Form MakeFinal()
        {
            TraditionalAlertsForm result = KeithMenzelForm();
            result.Text = "Final";
            result.Category = "KeithMenzel-hammer-end";
            return result;
        }

        public static Form MakePreview()
        {
            TraditionalAlertsForm result = KeithMenzelForm();
            result.Text = "Preview";
            result.Category = "KeithMenzel-hammer-preview";
            return result;
        }
    }
}