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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE UndecidableInstances #-}
-- | Data types that are or might yet be saved in the database, and possibly
-- also a few little convenience functions for using persistent.
module Persist where
import Data.Aeson (FromJSON, ToJSON, ToJSONKey)
import Data.Swagger (ToParamSchema (..), ToSchema (..),
genericDeclareNamedSchema)
import Data.Text (Text)
import Data.UUID (UUID)
import Database.Persist
import Database.Persist.Sql (PersistFieldSql,
runSqlPersistMPool)
import Database.Persist.TH
import GTFS
import PersistOrphans
import Servant (FromHttpApiData (..),
ToHttpApiData)
import Conduit (ResourceT)
import Control.Monad.IO.Class (MonadIO (liftIO))
import Control.Monad.Logger (NoLoggingT)
import Control.Monad.Reader (ReaderT)
import Data.Data (Proxy (..))
import Data.Pool (Pool)
import Data.Time (NominalDiffTime, TimeOfDay,
UTCTime (utctDay), addUTCTime,
dayOfWeek, diffUTCTime,
getCurrentTime, nominalDay)
import Data.Time.Calendar (Day, DayOfWeek (..))
import Data.Vector (Vector)
import Database.Persist.Postgresql (SqlBackend)
import GHC.Generics (Generic)
import Web.PathPieces (PathPiece)
newtype Token = Token UUID
deriving newtype
( Show, ToJSON, FromJSON, Eq, Ord, FromHttpApiData
, ToJSONKey, PersistField, PersistFieldSql, PathPiece
, ToHttpApiData, Read )
instance ToSchema Token where
declareNamedSchema _ = declareNamedSchema (Proxy @String)
instance ToParamSchema Token where
toParamSchema _ = toParamSchema (Proxy @String)
data AmendmentStatus = Cancelled | Added
deriving (ToJSON, FromJSON, Generic, Show, Read, Eq)
derivePersistField "AmendmentStatus"
instance FromHttpApiData AmendmentStatus where
parseUrlPiece "Cancelled" = Right Cancelled
parseUrlPiece "Added" = Right Added
parseUrlPiece other = Left ("unknown AmendmentStatus: "<>other)
share [mkPersist sqlSettings, mkMigrate "migrateAll"] [persistLowerCase|
-- | tokens which have been issued
RunningTrip sql=tt_tracker_token
Id Token default=uuid_generate_v4()
expires UTCTime
blocked Bool
tripNumber Text
vehicle Text Maybe
deriving Eq Show Generic
TripPing json sql=tt_trip_ping
token RunningTripId
lat Double
long Double
delay Double
timestamp UTCTime
deriving Show Generic Eq ToSchema
-- TODO: multi-language support?
Announcement json sql=tt_announcements
Id UUID default=uuid_generate_v4()
trip TripID
header Text
message Text
day Day
url Text Maybe
announcedAt UTCTime Maybe
deriving Generic ToSchema Show
-- | this table works as calendar_dates.txt in GTFS
ScheduleAmendment json sql=tt_schedule_amendement
trip TripID
day Day
status AmendmentStatus
-- only one special rule per TripID and Day (else incoherent)
TripAndDay trip day
-- TODO: possible to have regular trips moved in time without changing TripID?
ExtraordinaryTrip sql=tt_extra_trip
trip TripID
day Text
stops (Vector Text)
stopTimes (Vector TimeOfDay)
|]
instance ToSchema RunningTripId where
declareNamedSchema _ = declareNamedSchema (Proxy @UUID)
runSql :: MonadIO m => Pool SqlBackend -> ReaderT SqlBackend (NoLoggingT (ResourceT IO)) a -> m a
runSql pool = liftIO . flip runSqlPersistMPool pool
|
