/// <summary>
/// Parses a file data stream and outputs a list of transactions.
/// </summary>
/// <param name="data">File data stream.</param>
public async Task <List <Transaction> > ParseFile(Stream data)
{
// TODO: Exception feedback to UI
IParser parser = null;
var transactions = new List <Transaction>();
int lineNumber = 0;
string line;
using (StreamReader reader = new StreamReader(data))
{
while ((line = await reader.ReadLineAsync()) != null)
{
lineNumber++;
// TODO: Make parser selection nicer
if (lineNumber == 1)
{
if (Regex.IsMatch(line, SebParser.FirstLineRegex))
{
parser = new SebParser();
}
else if (Regex.IsMatch(line, SwedbankParser.FirstLineRegex))
{
parser = new SwedbankParser();
}
else
{
throw new NotSupportedException("CSV format not recognized and not supported.");
}
}
if (string.IsNullOrEmpty(line))
{
continue;
}
if (parser.HasTitleRow && lineNumber == 1)
{
continue;
}
if (parser.HasHeaderRow && lineNumber == 1)
{
continue;
}
if (parser.HasTitleRow && parser.HasHeaderRow && lineNumber == 2)
{
continue;
}
try
{
string[] fields = SplitAndClean(line, parser.Separator);
var transaction = parser.MapTransaction(fields);
if (transaction != null)
{
transactions.Add(transaction);
}
}
catch (ApplicationException ex)
{
Debug.WriteLine($"Could not parse line '{line}': {ex.Message}");
}
}
}
return(transactions);
}
public SebParserTests()
{
_target = new SebParser();
}
