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coupon-servant
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added coupon rejection

master
Alaudidae Lark 2017-05-06 21:33:22 +05:30
parent a2ce81b5f0
commit fd147af385
1 changed files with 23 additions and 3 deletions
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26
src/App.hs
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@ -9,6 +9,7 @@ import Api
import Control.Monad
import Control.Monad.IO.Class
import Control.Monad.Logger (runStderrLoggingT)
import Control.Monad.Trans.Reader
import Data.Maybe
import Data.String.Conversions
import Data.Text
@ -46,10 +47,29 @@ couponServer pool =
deleteWhere [CouponCode ==. code]
return NoContent
-- computeBillCoupon :: Coupon -> BillCoupon -> CouponResult
-- computeBillCoupon c b = Applied 1000
billCouponServer :: ConnectionPool -> Server BillCouponApi
billCouponServer _ = liftIO.billCouponCompute
where billCouponCompute bill = do print bill
return $ Applied 100
billCouponServer pool = liftIO.compute
where compute bill = runSqlPersistMPool (query bill) pool
query bill = do mcpn <- selectFirst [CouponCode ==. coupon bill] []
case mcpn of
Just cpn -> withCoupon (entityVal cpn) bill
Nothing -> return (Rejected "Coupon Not Found")
withCoupon cpn bill = case couponValue cpn of
ProductFlat c -> productFlat c bill
CartFlat c -> cartFlat c bill
CartPercent c -> cartPerCent c bill
productFlat :: (Monad m) => CouponForProduct -> BillCoupon -> m CouponResult
productFlat p bill = return (Rejected "Coupon ProductFlat Found")
cartFlat :: (Monad m) => Int -> BillCoupon -> m CouponResult
cartFlat p bill = return (Rejected "Coupon CartFlat Found")
cartPerCent :: (Monad m) => Int -> BillCoupon -> m CouponResult
cartPerCent p bill = return (Rejected "Coupon CartPercent Found")
swaggerServer :: Server SwaggerApi
swaggerServer = liftIO $ return $ swaggerDoc couponApi