Optimize and refactor payments

3 files changed, 5 insertions, 15 deletions

diff --git a/client/src/Util/Ajax.hs b/client/src/Util/Ajax.hs
index 47f4f3c..dc56701 100644
--- a/client/src/Util/Ajax.hs
+++ b/client/src/Util/Ajax.hs
@@ -16,6 +16,7 @@ import qualified Data.Map.Lazy        as LM
 import           Data.Text            (Text)
 import qualified Data.Text            as T
 import qualified Data.Text.Encoding   as T
+import           Data.Time.Clock      (NominalDiffTime)
 import           Reflex.Dom           (Dynamic, Event, IsXhrPayload,
                                        MonadWidget, XhrRequest,
                                        XhrRequestConfig (..), XhrResponse,
@@ -28,7 +29,9 @@ import qualified Loadable
 getNow :: forall t m a. (MonadWidget t m, FromJSON a) => Text -> m (Dynamic t (Loadable a))
 getNow url = do
   postBuild <- R.getPostBuild
-  get (R.tag (R.constant url) postBuild) >>= Loadable.fromEvent
+  get (url <$ postBuild)
+    >>= R.debounce (0 :: NominalDiffTime) -- Fired 2 times otherwise
+    >>= Loadable.fromEvent
 
 get
   :: forall t m a. (MonadWidget t m, FromJSON a)
diff --git a/client/src/Util/Either.hs b/client/src/Util/Either.hs
index 2910d95..e76bc8a 100644
--- a/client/src/Util/Either.hs
+++ b/client/src/Util/Either.hs
@@ -2,6 +2,6 @@ module Util.Either
   ( eitherToMaybe
   ) where
 
-eitherToMaybe :: Either a b -> Maybe b
+eitherToMaybe :: forall a b. Either a b -> Maybe b
 eitherToMaybe (Right b) = Just b
 eitherToMaybe _         = Nothing
diff --git a/client/src/Util/List.hs b/client/src/Util/List.hs
deleted file mode 100644
index 4e22ba8..0000000
--- a/client/src/Util/List.hs
+++ /dev/null
@@ -1,13 +0,0 @@
-module Util.List
-  ( groupBy
-  ) where
-
-import           Control.Arrow ((&&&))
-import           Data.Function (on)
-import qualified Data.List     as L
-
-groupBy :: forall a b. (Ord b) => (a -> b) -> [a] -> [(b, [a])]
-groupBy f =
-  map (f . head &&& id)
-    . L.groupBy ((==) `on` f)
-    . L.sortBy (compare `on` f)