/// <summary>
/// Gets the vat returns.
/// </summary>
/// <param name="userName">Name of the user.</param>
/// <param name="password">The password.</param>
/// <returns></returns>
public async Task <HmrcVatReturnsInfo> GetVatReturns(string userName, string password)
{
InfoAccumulator info = ValidateUserNamePassword(userName, password);
if (info.HasErrors)
{
return(ReturnError(info));
}
info = await Login(userName, password);
if (info.HasErrors)
{
return(ReturnError(info));
}
//try to obtain user's VAT id
var taxOfficeNumberAndVatId = await VatIdAndTaxOfficeNumberFetcher.GetUserVatIdAndTaxOfficeNumber(baseAddress, Browser);
if (string.IsNullOrEmpty(taxOfficeNumberAndVatId.VatId))
{
return(ReturnError("could not obtain customer's vat id"));
}
RtiTaxYearInfo yearInfo = null;
if (string.IsNullOrEmpty(taxOfficeNumberAndVatId.TaxOfficeNumber))
{
Log.Debug("Not fetching RTI Tax Years: Tax Office number is empty.");
}
else
{
yearInfo = await RtiTaxYearsFetcher.GetRtiTaxYears(taxOfficeNumberAndVatId.TaxOfficeNumber, baseAddress, Browser);
}
IEnumerable <VatReturnInfo> vatReturnInfos = await VatReturnsInfoFetcher.GetVatReturns(taxOfficeNumberAndVatId.VatId, baseAddress, Browser);
return(new HmrcVatReturnsInfo {
TaxOfficeNumber = taxOfficeNumberAndVatId.TaxOfficeNumber,
VatReturnInfos = vatReturnInfos,
RtiTaxYearInfo = yearInfo,
Info = info
});
}
/// <summary>
/// Parses the specified document.
/// </summary>
/// <param name="document">The document.</param>
/// <returns></returns>
/// <exception cref="System.IO.InvalidDataException">
/// RTI tax years table head is empty.
/// or
/// Failed to fetch RTI tax years: no cells in header row
/// or
/// RTI tax years table body not found.
/// or
/// RTI tax years data not found.
/// </exception>
public RtiTaxYearInfo Parse(HtmlDocument document)
{
HtmlNode oTHead = document.DocumentNode.SelectSingleNode("//*[@id=\"top\"]/div[3]/div[2]/div/div[2]/table[1]/thead");
if (oTHead == null)
{
Log.Info("RTI tax years table head not found.");
return(null);
} // if
HtmlNodeCollection oHeadRows = oTHead.SelectNodes("tr");
if ((oHeadRows == null) || (oHeadRows.Count != 1))
{
throw new InvalidDataException("RTI tax years table head is empty.");
}
HtmlNodeCollection oHeadCells = oHeadRows[0].SelectNodes("th | td");
string[] aryExpectedColumnHeaders =
{
"Date",
"Amount paid in period",
"Amount due in period",
};
if ((oHeadCells == null) || (oHeadCells.Count != aryExpectedColumnHeaders.Length))
{
throw new InvalidDataException("Failed to fetch RTI tax years: no cells in header row");
}
for (int i = 0; i < aryExpectedColumnHeaders.Length; i++)
{
if (!oHeadCells[i].InnerText.Trim()
.StartsWith(aryExpectedColumnHeaders[i]))
{
Log.InfoFormat(
"Not fetching RTI tax years: unexpected column {0} name: {1} (expected: {2})",
i, oHeadCells[i].InnerText, aryExpectedColumnHeaders[i]
);
return(null);
} // if
} // for
HtmlNode oTBody = document.DocumentNode.SelectSingleNode("//*[@id=\"top\"]/div[3]/div[2]/div/div[2]/table[1]/tbody");
if (oTBody == null)
{
throw new InvalidDataException("RTI tax years table body not found.");
}
HtmlNodeCollection oRows = oTBody.SelectNodes("tr");
if ((oRows == null) || (oRows.Count < 1))
{
throw new InvalidDataException("RTI tax years data not found.");
}
bool isFirst = true;
int rowNum = -1;
int firstYear = 0;
int lastYear = 0;
var data = new List <RtiTaxMonthSection>();
foreach (HtmlNode oTR in oRows)
{
rowNum++;
HtmlNodeCollection cells = oTR.SelectNodes("th | td");
if ((cells == null) || (cells.Count < 1))
{
throw new InvalidDataException(string.Format(
"Failed to fetch RTI tax years: no cells in row {0}.",
rowNum
));
} // if
if (isFirst)
{
isFirst = false;
HtmlNode cell = cells[0];
if (!cell.Attributes.Contains("colspan") || (cell.Attributes["colspan"].Value != "3"))
{
throw new InvalidDataException(string.Format(
"Failed to fetch RTI tax years: incorrect format in row {0}",
rowNum
));
} // if
if (cell.InnerText.Trim() == "Previous tax years")
{
break;
}
MatchCollection match = Regex.Matches(cell.InnerText.Trim(), @"^Current tax year (\d\d)(\d\d)-(\d\d)$");
if (match.Count != 1)
{
throw new InvalidDataException(string.Format(
"Failed to fetch RTI tax years: incorrect content in row {0}.",
rowNum
));
} // if
GroupCollection grp = match[0].Groups;
if (grp.Count != 4)
{
throw new InvalidDataException(string.Format(
"Failed to fetch RTI tax years: unexpected content in row {0}.",
rowNum
));
} // if
firstYear = Convert.ToInt32(grp[1].Value) * 100 + Convert.ToInt32(grp[2].Value);
lastYear = Convert.ToInt32(grp[1].Value) * 100 + Convert.ToInt32(grp[3].Value);
Log.InfoFormat("Current tax year: {0} - {1}", firstYear, lastYear);
continue;
} // if first row
string sFirstCell = cells.Count > 0 ? cells[0].InnerText.Trim() : string.Empty;
if (cells.Count != 3)
{
if ((cells.Count == 1) && (sFirstCell == "Previous tax years"))
{
break;
}
throw new InvalidDataException(string.Format(
"Failed to fetch RTI tax years: unexpected number of cells in row {0}.",
rowNum
));
} // if
if (sFirstCell == "Total")
{
break;
}
try {
data.Add(CreateRtiTaxYearSection(sFirstCell, cells[1].InnerText.Trim(), cells[2].InnerText.Trim()));
} catch (Exception e) {
throw new InvalidDataException(
string.Format(
"Failed to fetch RTI tax years: unexpected format in row {0}.",
rowNum
),
e
);
} // try
} // for each row
RtiTaxYearInfo yearInfo = new RtiTaxYearInfo {
Months = CreateRttMonthInfos(data, firstYear, lastYear)
};
Log.Debug("Fetching RTI Tax Years complete.");
return(yearInfo);
}
