using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TSingSoft.WebControls2;

namespace BWP.Web.Pages.Utils
{
  public class Second_ConvertRatioRowManager
  {
    readonly DFEditGridColumn<DFTextBox> _unitNumInput;
    readonly DFEditGridColumn<DFTextBox> _secondNumberInput;

    readonly string _unitNumField;
    readonly string _secondNumberField;
    
    private const string ConvertDirection = "dfContainer.getValue('Goods_UnitConvertDirection')";
    private const string MainUnitRatio = "dfContainer.getValue('Goods_MainUnitRatio')";
    private const string SecondUnitRatio = "dfContainer.getValue('Goods_SecondUnitRatio')";
    private const string LeftRatio = "dfContainer.getValue('LeftRatio')";
    private const string RightRatio = "dfContainer.getValue('RightRatio')";

    public Second_ConvertRatioRowManager(DFGridBase grid) : this(grid, "UnitNum", "SecondNumber")
    {

    }

    public Second_ConvertRatioRowManager(DFGridBase grid, string unitNumfield, string secondfield)
    {
      _unitNumField = unitNumfield;
      _secondNumberField = secondfield;
      foreach (DFGridColumn column in grid.Columns)
      {
        if (column is DFEditGridColumn<DFTextBox>)
        {
          var c = (DFEditGridColumn<DFTextBox>)column;
          if (c.Name == unitNumfield)
          {
            _unitNumInput = c;
          }

          else if (c.Name == secondfield)
            _secondNumberInput = c;
        }
      }
      SetClientScript();
    }

    private void SetClientScript()
    {
      SetUnitNumChanged();
      //      SetMainNumberChanged();
      SetSecondNumberChanged();
    }

    private void SetSecondNumberChanged()//辅至主
    {
      if (_secondNumberInput == null)
        return;

      var builder = new StringBuilder();

      if (_unitNumInput != null)
      {
        builder.Append(@"if({convertDirection}=='双向转换'||{convertDirection}=='由辅至主'){if({ratioRight}>0 && {ratioLeft}>0 && {unitRatioLeft} > 0 && {unitRatioRight}>0)
				{{setUnitNum}}}"
      .Replace("{convertDirection}", ConvertDirection)
      .Replace("{ratioRight}", SecondUnitRatio)
      .Replace("{ratioLeft}", MainUnitRatio)
      .Replace("{unitRatioLeft}", LeftRatio)
      .Replace("{unitRatioRight}", RightRatio)
      .Replace("{setUnitNum}", SetUnitNumBySecondNumber));
      }
      _secondNumberInput.InitEditControl += delegate (object sender, InitEditControlEventArgs<DFTextBox> e)
      {
        e.Control.Attributes["onchange"] = builder.ToString();
      };
    }

    private void SetUnitNumChanged()//主至辅
    {
      if (_unitNumInput == null)
        return;

      var builder = new StringBuilder();

      if (_secondNumberInput != null)
      {
        builder.Append(@"if({convertDirection}=='双向转换'||{convertDirection}=='由主至辅'){if({unitRatioLeft} > 0 && {unitRatioRight}>0 && {ratioRight}>0 && {ratioLeft}>0){{SetSecondNumberByUnitNum}}}"
         .Replace("{convertDirection}", ConvertDirection)
         .Replace("{ratioLeft}", MainUnitRatio)
         .Replace("{ratioRight}", SecondUnitRatio)
         .Replace("{unitRatioLeft}", LeftRatio)
         .Replace("{unitRatioRight}", RightRatio)
         .Replace("{SetSecondNumberByUnitNum}", SetSecondNumberByUnitNum)
         );
      }

      _unitNumInput.InitEditControl += delegate (object sender, InitEditControlEventArgs<DFTextBox> e)
      {
        e.Control.Attributes["onchange"] = builder.ToString();
      };
    }

    string SetSecondNumberByUnitNum
    {
      get
      {
        return string.Format("var number = dfContainer.getValue('{0}')/{1}*{2}; dfContainer.setValue('{3}', (number /{4}*{5}).toFixed(6));", _unitNumField, LeftRatio, RightRatio, _secondNumberField, MainUnitRatio, SecondUnitRatio);
      }
    }
    string SetUnitNumBySecondNumber
    {
      get
      {
        return string.Format("var number = dfContainer.getValue('{0}')*{1}/{2};dfContainer.setValue('{3}', (number/{4}*{5}).toFixed(2));", _secondNumberField, MainUnitRatio, SecondUnitRatio, _unitNumField, RightRatio, LeftRatio);
      }
    }
  }
}