private List <BLL.DTOs.Advertisement> FilterAds(int numberToShow, IEnumerable <BLL.DTOs.Advertisement> ads, BLL.DTOs.Advertisement similarAd)
{
IEnumerable <FilterType> filterOptions = new List <FilterType>()
{
FilterType.Price, FilterType.County, FilterType.City, FilterType.Condition, FilterType.ImportantProps, FilterType.OtherProps, FilterType.User
};
ads = ads.Where(a => a.Id != similarAd.Id);
int i = 0;
while (i < filterOptions.Count() && ads.Count() > numberToShow)
{
ads = FilterAdsByOption(ads, similarAd, filterOptions.ElementAt(i));
i++;
}
return(ads.Take(numberToShow).ToList());
}
private IEnumerable <BLL.DTOs.Advertisement> FilterAdsByOption(IEnumerable <BLL.DTOs.Advertisement> ads, BLL.DTOs.Advertisement similarAd, FilterType option)
{
switch (option)
{
case FilterType.Price:
return(ads.Where(a => a.Price >= similarAd.Price / 2 && a.Price <= similarAd.Price * 2));
case FilterType.County:
return(ads.Where(a => a.City.County !.Name == similarAd.City.County !.Name));
case FilterType.City:
return(ads.Where(a => a.City.Name == similarAd.City.Name));
case FilterType.Condition:
return(ads.Where(a => a.Condition == similarAd.Condition));
case FilterType.ImportantProps:
var importantProps = similarAd.AdvertisementProperties.Where(ap => ap.Property.IsImportant);
return(AdvertisementFinder.FilterAdvertisementsByProperties(ads, importantProps));
case FilterType.OtherProps:
var otherProps = similarAd.AdvertisementProperties.Where(ap => !ap.Property.IsImportant);
return(AdvertisementFinder.FilterAdvertisementsByProperties(ads, otherProps));
case FilterType.User:
return(ads.Where(a => similarAd.Seller == null ? similarAd.Customer == a.Customer : similarAd.Seller == a.Seller));
default:
return(ads);
}
}
