/// <summary>
/// init querry process with all data from file, create two lists for reset
/// </summary>
/// <param name="sourceFile"></param>
public QuerryProcess(string sourceFile)
{
FileReader = new CsvReader(sourceFile);
AlteredFlights = FileReader.ReadFromFile();
OriginalFlights = AlteredFlights.ToList();
QueryEnum = QuerryEnum.NONE;
}
/// <summary>
/// calculates desired querry based on given flight list
/// </summary>
/// <param name="query"></param>
/// <returns>returns an object array with all results relevant to querry</returns>
public object[] CalculateQuery(QuerryEnum query)
{
object[] results = new object[1];;
if (query == QuerryEnum.AVG_DEP_DEL)
{
results = new object[3];
results[0] = CalculateAvgDelay();
results[1] = CalculateAvgDelay(false);
results[2] = Flights.Count();
}
if (query == QuerryEnum.MOST_fLIGHTS)
{
results = new object[2];
KeyValuePair <string, int> valuePair = HotDest();
results[0] = valuePair.Key;
results[1] = valuePair.Value;
}
if (query == QuerryEnum.FARTHEST_DESTINATIONS)
{
results = new object[1];
results[0] = FiveFarthestDest();
}
return(results);
}
/// <summary>
/// save querry type, fill first input textbox with source cities, pass querry type to querryprocess
/// freeze query selection and unfreeze input section
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Query_Click(object sender, EventArgs e)
{
CurrentQuerry = GetQuerryEnum(sender);
SetAutoCompleteSource(this.CityA);
QuerryProcess.StartQuery(CurrentQuerry);
DisableControls(this.QuerryPanel);
EnableControls(this.InputPanel);
((Control)sender).Enabled = true;
DisableInput(CurrentQuerry);
}
/// <summary>
/// disables input text boxes that querry doesnt require
/// </summary>
/// <param name="querry"></param>
private void DisableInput(QuerryEnum querry)
{
switch (querry)
{
case QuerryEnum.AVG_DEP_DEL:
this.CityC.Enabled = false;
break;
case QuerryEnum.FARTHEST_DESTINATIONS:
case QuerryEnum.MOST_fLIGHTS:
this.CityC.Enabled = false;
this.CityB.Enabled = false;
break;
case QuerryEnum.SHORTEST_PATH:
break;
}
}
public string EditReuslts(string[] input, object[] results, QuerryEnum queryEnum)
{
string msg = MsgFormat.GetFormat(queryEnum);
if (queryEnum == QuerryEnum.AVG_DEP_DEL)
{
msg = String.Format(msg, (int)results[2], input[0], input[1], (double)results[0], (double)results[1]);
}
else if (queryEnum == QuerryEnum.MOST_fLIGHTS)
{
msg = String.Format(msg, input[0], results[0], results[1]);
}
else if (queryEnum == QuerryEnum.FARTHEST_DESTINATIONS)
{
msg = String.Format(msg, input[0], (string)results[0]);
}
return(msg);
}
public string GetFormat(QuerryEnum queryEnum)
{
int queryIndex = (int)queryEnum - 1;
return(FormatList.Where(x => x.Key == queryEnum).First().Value);
}
/// <summary>
/// defines current querry performed
/// </summary>
/// <param name="query"></param>
public void StartQuery(QuerryEnum query)
{
QueryEnum = query;
}
