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Diffstat (limited to 'src/lib/haskell/Model/Ad.hs')
-rw-r--r-- | src/lib/haskell/Model/Ad.hs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/lib/haskell/Model/Ad.hs b/src/lib/haskell/Model/Ad.hs new file mode 100644 index 0000000..06906eb --- /dev/null +++ b/src/lib/haskell/Model/Ad.hs @@ -0,0 +1,22 @@ +module Model.Ad + ( Ad(..) + , getNewAds + ) where + +import Data.List ((\\)) +import Data.Text (Text) + +import Model.URL (URL) + +data Ad = Ad + { name :: Text + , location :: Text + , price :: Maybe Text + , url :: URL + } deriving (Eq, Read, Show) + +getNewAds :: [URL] -> [Ad] -> ([URL], [Ad]) +getNewAds viewdURLs ads = + let newURLs = (map url ads) \\ viewdURLs + newAds = filter (\ad -> elem (url ad) newURLs) ads + in (newURLs, newAds) |