/// <summary>
/// Initializes a new instance of the <see cref="Flight"/> class.
/// </summary>
/// <param name="baseData">
/// The base data.
/// </param>
/// <param name="flightOperator">
/// The flight operator.
/// </param>
/// <param name="price">
/// The price.
/// </param>
/// <param name="travelAgency">
/// The travel agency.
/// </param>
/// <param name="outboundLeg">
/// The outbound leg.
/// </param>
/// <param name="inboundLeg">
/// The inbound leg.
/// </param>
public Flight(
JourneyData baseData,
string flightOperator,
FlightLeg outboundLeg,
FlightLeg inboundLeg)
{
this.JourneyData = baseData;
this.Operator = flightOperator;
this.OutboundLeg = outboundLeg;
this.InboundLeg = inboundLeg;
this.Fares = new List<Fare>();
}
/// <summary>
/// The parse web archive.
/// </summary>
/// <param name="webDocument">
/// The web document.
/// </param>
/// <returns>
/// The <see cref="RouteDataResult"/>.
/// </returns>
internal RouteDataResult ParseWebArchive(HtmlDocument webDocument)
{
HtmlNode originInput = webDocument.GetElementbyId("flight_places");
if (originInput == null)
{
// Data is not ready yet
return new RouteDataResult(DataResult.NotReady, null);
}
var resultDivs = webDocument.DocumentNode.SelectNodes("//div[@id='results_list']//div[@class='flights_a']");
if (resultDivs == null || resultDivs.Count < 1)
{
// Data is not ready yet
return new RouteDataResult(DataResult.NotReady, null);
}
var route = new TravelRoute(0, this.Departure, this.Destination);
foreach (var resultSection in resultDivs)
{
// Each result set
DateTime dataDate = DateTime.Now;
var operatorData = new Dictionary<string, List<Flight>>();
var newData = new JourneyData(0, "EUR", dataDate);
FlightLeg outboundLeg = null, inboundLeg = null;
string flightOperator = null;
TravelAgency travelAgency = null;
double price = 0.0;
List<Fare> fares = new List<Fare>();
var priceContainers = resultSection.SelectNodes(".//div[@class='f_price_container']//div[@class='row']");
if (priceContainers == null || priceContainers.Count < 1)
{
continue;
}
foreach (var priceContainer in priceContainers)
{
string onClickStr = priceContainer.GetAttributeValue("onclick", string.Empty);
travelAgency = this.TryGetTravelAgency(onClickStr, false);
var priceNode = priceContainer.SelectSingleNode(".//div[@class='f_price']");
if (priceNode == null)
{
continue;
}
string priceStr = Regex.Match(priceNode.InnerText.Replace(",", "."), @"\d+(.\d+)?").Value;
double.TryParse(priceStr, NumberStyles.Any, NamingRule.NumberCulture, out price);
fares.Add(new Fare { TravelAgency = travelAgency, Price = price });
}
// Loop through each column in table
var flightNode = resultSection.SelectSingleNode(".//div[@class='f_normal_info']");
if (flightNode == null)
{
continue;
}
foreach (HtmlNode flightDetailNode in flightNode.ChildNodes)
{
// Fetch the flight detail from the row
if (flightDetailNode.Name != "div")
{
continue;
}
string className = flightDetailNode.GetAttributeValue("class", string.Empty);
switch (className)
{
case "f_outbound":
case "f_outbound_only":
case "f_return":
var divNodes = flightDetailNode.Descendants("div");
if (divNodes != null)
{
string depDatePartStr = null, depTimePartStr = null, stopStr = null, arrDatePartStr = null, arrTimePartStr = null;
TimeSpan duration = TimeSpan.Zero;
foreach (var dataNode in divNodes)
{
// Each flight
string dataClass = dataNode.GetAttributeValue("class", string.Empty);
switch (dataClass)
{
case "f_dep_date":
depDatePartStr = dataNode.InnerText;
break;
case "f_departure":
depTimePartStr = dataNode.InnerText;
break;
case "f_arr_date":
arrDatePartStr = dataNode.InnerText;
break;
case "f_arrival":
arrTimePartStr = dataNode.InnerText;
break;
case "f_duration":
duration = this.TryGetDuration(dataNode.InnerText);
break;
case "f_stops":
stopStr = TryGetNumberString(dataNode.InnerText);
break;
}
}
// Validate that we got all required data
string depDateStr = string.Format(CultureInfo.InvariantCulture, "{0} {1}", depDatePartStr, depTimePartStr),
arrDateStr = string.Format(CultureInfo.InvariantCulture, "{0} {1}", arrDatePartStr, arrTimePartStr);
DateTime deptDate, arrDate;
if (DateTime.TryParseExact(
depDateStr,
"dd.MM.yy HH:mm",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out deptDate) && deptDate.IsDefined()
&& DateTime.TryParseExact(
arrDateStr,
"dd.MM.yy HH:mm",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out arrDate) && arrDate.IsDefined())
{
if (duration > TimeSpan.Zero)
{
int transit;
int.TryParse(stopStr, out transit); // This might fail for straight flight: Just ignore it
var flightLeg = new FlightLeg(deptDate, arrDate, duration, transit);
if (className == "f_return")
{
inboundLeg = flightLeg;
}
else
{
outboundLeg = flightLeg;
}
}
}
}
break;
case "f_company":
flightOperator = flightDetailNode.InnerText.Replace("mm. ", string.Empty);
break;
}
}
if (outboundLeg != null)
{
bool shouldAdd;
if (shouldAdd = !operatorData.ContainsKey(flightOperator))
{
// Flight will always be added if it is the first from this operator
if (operatorData.Keys.Count == this.MaxAirlines)
{
// If we reached the limit for number of flight operators
continue;
}
operatorData.Add(flightOperator, new List<Flight>(this.MaxFlightsPerAirline));
}
var opearatorFlights = operatorData[flightOperator];
if (!shouldAdd)
{
// This is not the first fly from this operator
TimeSpan totalDuration = (outboundLeg == null ? TimeSpan.Zero : outboundLeg.Duration)
+ (inboundLeg == null ? TimeSpan.Zero : inboundLeg.Duration);
var lastFlight = opearatorFlights[opearatorFlights.Count - 1];
if ((price - lastFlight.Price) > this.MinPriceMargin)
{
// If the price differs enough, add new flight if we still have space
if (opearatorFlights.Count < this.MaxFlightsPerAirline)
{
shouldAdd = true;
}
}
else
{
// The new price does not differ enough from last flight: Add or replace existing flight if the duration is shorter
for (int i = opearatorFlights.Count - 1; i >= 0; i--)
{
var f = opearatorFlights[i];
if ((price - f.Price) <= this.MinPriceMargin && totalDuration < f.Duration)
{
opearatorFlights.RemoveAt(i);
shouldAdd = true;
break;
}
}
}
}
if (shouldAdd && fares.Count > 0)
{
var newFlight = new Flight(newData, flightOperator, outboundLeg, inboundLeg) { Fares = fares };
newData.AddFlight(newFlight);
opearatorFlights.Add(newFlight);
}
}
if (newData.Flights.Count > 0)
{
Journey existJourney = null;
DateTime deptDate = newData.Flights[0].OutboundLeg.Departure.Date;
DateTime retDate = DateTime.MinValue;
if (newData.Flights[0].InboundLeg != null)
{
retDate = newData.Flights[0].InboundLeg.Departure.Date;
}
foreach (var j in route.Journeys)
{
if (j.DepartureDate == deptDate && j.ReturnDate == retDate)
{
existJourney = j;
break;
}
}
if (existJourney == null)
{
existJourney = new Journey();
route.AddJourney(existJourney);
}
existJourney.AddData(newData);
existJourney.DepartureDate = deptDate;
existJourney.ReturnDate = retDate;
}
}
return new RouteDataResult(DataResult.Ready, route);
}
/// <summary>
/// Returns true if the flight leg has the same departure time, arrival time, total duration and number of transits
/// </summary>
/// <param name="otherLeg">
/// The other Leg.
/// </param>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public bool IsSame(FlightLeg otherLeg)
{
bool result;
if (result = otherLeg != null)
{
if (result = this.Departure == otherLeg.Departure)
{
if (result = this.Arrival == otherLeg.Arrival)
{
if (result = this.Duration == otherLeg.Duration)
{
result = this.Transit == otherLeg.Transit;
}
}
}
}
return result;
}
