public async Task <List <HandlerServiceResult> > BuildStatistics(Category category, DateTime?from = null, DateTime?to = null)
{
var result = new List <HandlerServiceResult>
{
new HandlerServiceResult
{
Message = "Here's your statistics:",
StatusCode = StatusCodeEnum.Ok
}
};
var operations = await _operationDocumentService.GetByCategoryId(category.Id);
if (from != null && to != null)
{
operations = operations.Where(o => o.Date >= from && o.Date <= to).ToList();
}
operations.Sort((x, y) => x.Date.CompareTo(y.Date));
var sign = category.Type == CategoryTypeEnum.Income ? "+" : "-";
result.AddRange(operations.Select(operation => new HandlerServiceResult
{
Message = $"{operation.Date}: {sign}{BuildAmountWithCurrency((float) operation.CreditAmountInCents / 100, category.Currency)}",
StatusCode = StatusCodeEnum.Ok
}));
return(result);
}
private async Task <List <HandlerServiceResult> > ConfigureCategoryDateRange(string answer, User user)
{
answer = answer.Trim();
if (string.IsNullOrEmpty(answer))
{
return(new List <HandlerServiceResult>
{
_resultService.BuildEmptyAnswerErrorResult()
});
}
var category = await _categoryDocumentService.GetByIdAsync(user.Context.CategoryId);
if (answer.Equals("All time"))
{
user.Context = null;
await _userDocumentService.UpdateAsync(user);
return(await _statsService.BuildStatistics(category));
}
try
{
var dateStrings = answer.Split('-');
var from = dateStrings[0].Split('.');
var to = dateStrings[1].Split('.');
var fromDate = new DateTime(int.Parse(from[2]), int.Parse(from[1]), int.Parse(from[0]));
var toDate = new DateTime(int.Parse(to[2]), int.Parse(to[1]), int.Parse(to[0]));
var operations = await _operationDocumentService.GetByCategoryId(category.Id);
operations = operations.Where(o => o.Date >= fromDate && o.Date <= toDate).ToList();
if (operations.Count == 0)
{
return(new List <HandlerServiceResult>
{
_resultService.BuildStatsNoOperationsOnDateRangeErrorResult()
});
}
user.Context = null;
await _userDocumentService.UpdateAsync(user);
return(await _statsService.BuildStatistics(category, fromDate, toDate));
}
catch (Exception)
{
return(new List <HandlerServiceResult>
{
_resultService.BuildOperationInvalidDateErrorResult()
});
}
}