/// <summary>
/// Calculates report by tag but without percentage values.
/// </summary>
/// <param name="tagResult">Tag which is used to calculate the result</param>
/// <returns>Tag with results for report, without percentage values.</returns>
private TagResult GetTagResult(TagResult tagResult)
{
var tag = TagRepository.GetById(SessionVars.UserId, tagResult.TagId).Object;
tagResult.SpentAmount = TagRepository.GetSpentAmountByTag(SessionVars.UserId, tagResult.TagId, startDate, endDate).Object;
tagResult.TagName = tag.Name;
foreach (var childTag in tag.Children)
{
var childTagResult = new TagResult();
childTagResult.TagId = childTag.Id;
tagResult.Children.Add(GetTagResult(childTagResult));
}
return tagResult;
}
public ActionResult Index(IndexViewModel indexViewModel)
{
if (indexViewModel.StartDate > indexViewModel.EndDate)
{
ModelState.AddModelError("StartDate", "End date must be greater than start date");
}
if (ModelState.IsValid)
{
startDate = indexViewModel.StartDate;
endDate = indexViewModel.EndDate;
var tag = TagRepository.GetParentTagByUserId(SessionVars.UserId).Object;
var tagResult = new TagResult();
tagResult.TagId = tag.Id;
indexViewModel.ParentTagResult = GetTagResult(tagResult);
CalculatePercents(indexViewModel.ParentTagResult, indexViewModel.ParentTagResult.SpentAmount);
return View(indexViewModel);
}
else
{
return View(indexViewModel);
}
}
/// <summary>
/// Method calculated percentage values for all level in the tree of tags
/// </summary>
/// <param name="tagResult">Tree of tags</param>
/// <param name="totalAmount">Total amount. So it is the value which we use to calculate percentage values. i.e. [Branch Result] / [Total amount]</param>
/// <returns></returns>
private TagResult CalculatePercents(TagResult tagResult, decimal totalAmount)
{
tagResult.Percentage = Math.Round(Convert.ToDouble(tagResult.SpentAmount / totalAmount) * 100.0, 2);
foreach (var child in tagResult.Children)
{
CalculatePercents(child, totalAmount);
}
return tagResult;
}
