/// <summary>
/// Method that is used to get the cheapest hotel for a Booking request
/// </summary>
/// <param name="bookingRequest">Booking request object that contains customer type and dates</param>
/// <param name="hotels">List of hotels</param>
/// <returns></returns>
public static HotelBooking GetCheapestHotel(BookingRequest bookingRequest, IList <Hotel> hotels)
{
return(hotels
.Select(hotel => GetHotelBooking(hotel, bookingRequest))
.OrderBy(h => h, new PriceComparer())
.FirstOrDefault());
}
/// <summary>
/// builds a single booking request, that is used to mount the object
/// </summary>
/// <param name="input">String that describes a booking request</param>
/// <returns>an object of a booking request</returns>
public static BookingRequest BuildBookingRequest(string input)
{
BookingRequest bookingRequest = new BookingRequest();
string[] result;
// split by :
result = input.Split(":", StringSplitOptions.None);
foreach (string item in result)
{
if (item == "Regular")
{
bookingRequest.CustomerType = "Regular";
}
else if (item == "Rewards")
{
bookingRequest.CustomerType = "Rewards";
}
else
{
bookingRequest.Dates = GetListOfDates(item);
}
}
return(bookingRequest);
}
/// <summary>
/// This method is used to generate a list of booking requests,
/// that will be used to process the cheapest hotel for that request
/// </summary>
/// <param name="input">List of booking request strings</param>
/// <returns>list of bookingRequest objects</returns>
public static IList <BookingRequest> BuildSearchRequest(IList <string> input)
{
List <BookingRequest> requests = new List <BookingRequest>();
foreach (string line in input)
{
BookingRequest bookingRequest = BuildBookingRequest(line);
requests.Add(bookingRequest);
}
return(requests);
}
/// <summary>
/// Method that calculates hotel price for a sequence of dates
/// </summary>
/// <param name="hotel">object that describes a hotel</param>
/// <param name="request">request that contains a list of dates and customer type</param>
/// <returns></returns>
public static HotelBooking GetHotelBooking(Hotel hotel, BookingRequest request)
{
double hotelPrice = 0d;
foreach (var date in request.Dates)
{
bool isWeekend = WeekDay.sun == date || WeekDay.sat == date;
bool isRewards = request.CustomerType == "Rewards";
hotelPrice += hotel.GetHotelCostByDay(isWeekend, isRewards);
}
return(new HotelBooking()
{
Hotel = hotel,
Cost = hotelPrice
});
}