/// <summary>
/// Maps a list of NodeResults potentially more than one hotel and returns a list of hotel objects mapping NodeResult properties to Hotel properties
/// </summary>
/// <param name="nodeResults">
/// List of results from scraping a website
/// </param>
/// <param name="args">
/// Register Args, stores checkin/out data used previously for registering pages with scraper
/// </param>
public static List <Hotel> Map(Dictionary <string, List <List <NodeResult> > > nodeResults, RequestArgs args)
{
List <Hotel> hotels = new List <Hotel>();
List <FieldInfo> fields = typeof(Hotel).GetFields().ToList();
Dictionary <string, FieldInfo> fieldNames = new Dictionary <string, FieldInfo>();
fields.ForEach((field) => { fieldNames.Add(field.Name, field); });
foreach (KeyValuePair <string, List <List <NodeResult> > > nodeList in nodeResults) // Iterate each page
{
foreach (List <NodeResult> rawHotel in nodeList.Value) // Iterate each raw entry (List of NodeResults which should have all the properties for a Hotel)
{
Hotel hotel = new Hotel();
hotel.ReservationData = new HotelReservations();
HotelReservation reservation = new HotelReservation();
foreach (NodeResult result in rawHotel)
{
if (fieldNames.ContainsKey(result.Property)) // Map each results property to the classes field
{
if (result.Attribute != null)
{
var node = result.Nodes.FirstOrDefault(); // maps attributes for example href to field values
if (node?.Attributes[result.Attribute] != null)
{
fieldNames[result.Property].SetValue(hotel, node.Attributes[result.Attribute].Value);
}
else
{
fieldNames[result.Property].SetValue(hotel, result.Nodes.First().InnerText.Trim(new char[] { '\r', '\n', '\t', ' ' }));
}
}
else
{
fieldNames[result.Property].SetValue(hotel, result.Nodes.First().InnerText.Trim(new char[] { '\r', '\n', '\t', ' ' }));
}
}
}
Program.App.Log($"[{DateTime.Now.ToShortTimeString()}] {hotel.ScrapeURL}: Found, {hotel.Name}, {hotel.Address}");
reservation.Price = ParseProperty <string>("PriceL", rawHotel);
reservation.Currency = ParseProperty <string>("Currency", rawHotel);
reservation.CheckIn = args.CheckIn;
reservation.CheckOut = args.CheckOut; // Reservation initialisation and data passing
hotel.ReservationData.AddDate(reservation);
hotel.DateGathered = DateTime.Now;
hotels.Add(hotel);
}
}
return(hotels);
}
public HotelReservation GetReservation(DateTime checkIn, DateTime checkOut)
{
HotelReservation searchReservation = null;
foreach (HotelReservation reservation in reservations)
{
if (reservation.CheckIn.ToShortDateString() == checkIn.ToShortDateString() &&
reservation.CheckOut.ToShortDateString() == checkOut.ToShortDateString())
{
searchReservation = reservation;
break;
}
}
return(searchReservation);
}
public HotelReservation GetReservation(int day, int month, int year)
{
HotelReservation searchReservation = null;
foreach (HotelReservation reservation in reservations)
{
if ((reservation.CheckIn.Day == day && reservation.CheckIn.Month == month && reservation.CheckIn.Year == year) ||
(reservation.CheckOut.Day == day && reservation.CheckOut.Month == month && reservation.CheckOut.Year == year))
{
searchReservation = reservation;
}
}
return(searchReservation);
}
/// <summary>
/// Custom contains implementation, checks the data structure to see if any matching checkins are found.
/// </summary>
public int Contains(DateTime checkIn, DateTime checkOut)
{
int idx = -1;
for (var i = 0; i < reservations.Count; i++)
{
HotelReservation reservation = reservations[i];
if (reservation.CheckIn.ToShortDateString() == checkIn.ToShortDateString() &&
reservation.CheckOut.ToShortDateString() == checkOut.ToShortDateString())
{
idx = i;
break;
}
}
return(idx);
}
public bool AddDate(HotelReservation reservation)
{
reservations.Add(reservation);
return(true);
}