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{-# LANGUAGE OverloadedStrings #-}

module Controller.Payment
  ( list
  , create
  , editOwn
  , deleteOwn
  ) where

import Control.Monad.IO.Class (liftIO)
import Network.HTTP.Types.Status (ok200, badRequest400)
import Web.Scotty

import qualified Common.Model.CreatePayment as M
import qualified Common.Model.EditPayment as M
import Common.Model (PaymentId, User(..))

import Json (jsonId)
import qualified Model.Payment as Payment
import qualified Model.PaymentCategory as PaymentCategory
import qualified Model.Query as Query
import qualified Secure

list :: ActionM ()
list =
  Secure.loggedAction (\_ ->
    (liftIO . Query.run $ Payment.list) >>= json
  )

create :: M.CreatePayment -> ActionM ()
create (M.CreatePayment name cost date category frequency) =
  Secure.loggedAction (\user ->
    (liftIO . Query.run $ do
      PaymentCategory.save name category
      Payment.create (_user_id user) name cost date frequency
    ) >>= jsonId
  )

editOwn :: M.EditPayment -> ActionM ()
editOwn (M.EditPayment paymentId name cost date category frequency) =
  Secure.loggedAction (\user -> do
    updated <- liftIO . Query.run $ do
      edited <- Payment.editOwn (_user_id user) paymentId name cost date frequency
      _ <- if edited
        then PaymentCategory.save name category >> return ()
        else return ()
      return edited
    if updated
      then status ok200
      else status badRequest400
  )

deleteOwn :: PaymentId -> ActionM ()
deleteOwn paymentId =
  Secure.loggedAction (\user -> do
    deleted <- liftIO . Query.run $ Payment.deleteOwn (_user_id user) paymentId
    if deleted
      then status ok200
      else status badRequest400
  )