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{-# LANGUAGE OverloadedStrings #-}

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

import Control.Monad.IO.Class (liftIO)

import Data.Text (Text)
import Database.Persist
import Network.HTTP.Types.Status (ok200, badRequest400)
import Web.Scotty

import Json (jsonId)
import Model.Database
import qualified Model.Json.CreatePayment as Json
import qualified Model.Json.EditPayment as Json
import qualified Model.Payment as Payment
import qualified Model.PaymentCategory as PaymentCategory
import qualified Secure

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

create :: Json.CreatePayment -> ActionM ()
create (Json.CreatePayment name cost date category frequency) =
  Secure.loggedAction (\user ->
    (liftIO . runDb $ do
      PaymentCategory.save name category
      Payment.create (entityKey user) name cost date frequency
    ) >>= jsonId
  )

editOwn :: Json.EditPayment -> ActionM ()
editOwn (Json.EditPayment paymentId name cost date category frequency) =
  Secure.loggedAction (\user -> do
    updated <- liftIO . runDb $ do
      edited <- Payment.editOwn (entityKey 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 :: Text -> ActionM ()
deleteOwn paymentId =
  Secure.loggedAction (\user -> do
    deleted <- liftIO . runDb $ Payment.deleteOwn (entityKey user) (textToKey paymentId)
    if deleted
      then status ok200
      else status badRequest400
  )