Using incomes to compute a fair computation to designate the payer

1 files changed, 22 insertions, 0 deletions

diff --git a/src/server/Model/Json/Payer.hs b/src/server/Model/Json/Payer.hs
new file mode 100644
index 0000000..2101e40
--- /dev/null
+++ b/src/server/Model/Json/Payer.hs
@@ -0,0 +1,22 @@
+{-# LANGUAGE DeriveGeneric #-}
+
+module Model.Json.Payer
+  ( Payer(..)
+  ) where
+
+import GHC.Generics
+
+import Data.Aeson
+
+import Model.Database (UserId)
+import Model.Json.Income
+
+data Payer = Payer
+  { userId :: UserId
+  , preIncomePaymentSum :: Int
+  , postIncomePaymentSum :: Int
+  , incomes :: [Income]
+  } deriving (Show, Generic)
+
+instance FromJSON Payer
+instance ToJSON Payer