fradrive/src/CryptoID.hs
2018-07-03 17:18:28 +02:00

78 lines
2.3 KiB
Haskell

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE FlexibleInstances, TypeSynonymInstances #-}
{-# LANGUAGE RecordWildCards, ViewPatterns, PatternGuards #-}
{-# LANGUAGE PatternSynonyms #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module CryptoID
( module CryptoID
, module Data.CryptoID.Poly.ImplicitNamespace
, module Data.UUID.Cryptographic.ImplicitNamespace
, module System.FilePath.Cryptographic.ImplicitNamespace
) where
import CryptoID.TH
import ClassyPrelude hiding (fromString)
import Model
import Data.CryptoID.Poly.ImplicitNamespace
import Data.UUID.Cryptographic.ImplicitNamespace
import System.FilePath.Cryptographic.ImplicitNamespace
import qualified Data.Text as Text
import Data.UUID.Types
import Web.PathPieces
import Data.CaseInsensitive (CI)
import qualified Data.CaseInsensitive as CI
instance PathPiece UUID where
fromPathPiece = fromString . unpack
toPathPiece = pack . toString
instance (CI.FoldCase s, PathPiece s) => PathPiece (CI s) where
fromPathPiece = fmap CI.mk . fromPathPiece
toPathPiece = toPathPiece . CI.foldedCase
instance {-# OVERLAPS #-} PathMultiPiece FilePath where
fromPathMultiPiece = Just . unpack . intercalate "/"
toPathMultiPiece = Text.splitOn "/" . pack
instance (CI.FoldCase s, PathMultiPiece s) => PathMultiPiece (CI s) where
fromPathMultiPiece = fmap CI.mk . fromPathMultiPiece
toPathMultiPiece = toPathMultiPiece . CI.foldedCase
-- Generates CryptoUUID... and CryptoFileName... Datatypes
decCryptoIDs [ ''SubmissionId
, ''FileId
, ''UserId
]
{- TODO: Do we need/want CryptoUUIDs for Sheet numbers? -}
newtype SubmissionMode = SubmissionMode (Maybe CryptoFileNameSubmission)
deriving (Show, Read, Eq)
pattern NewSubmission :: SubmissionMode
pattern NewSubmission = SubmissionMode Nothing
pattern ExistingSubmission :: CryptoFileNameSubmission -> SubmissionMode
pattern ExistingSubmission cID = SubmissionMode (Just cID)
instance PathPiece SubmissionMode where
fromPathPiece "new" = Just $ SubmissionMode Nothing
fromPathPiece s = SubmissionMode . Just <$> fromPathPiece s
toPathPiece (SubmissionMode Nothing) = "new"
toPathPiece (SubmissionMode (Just x)) = toPathPiece x