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|
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DefaultSignatures #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE ViewPatterns #-}
module Server.ControlRoom (ControlRoom(..)) where
import Control.Monad (unless, when)
import Control.Monad.IO.Class (MonadIO (liftIO))
import qualified Data.ByteString.Char8 as C8
import qualified Data.Map as M
import Data.Swagger (ToSchema (..))
import Data.Text (Text)
import qualified Data.Text as T
import Web.FormUrlEncoded (ToForm)
import Web.Internal.FormUrlEncoded (Form)
import Control.Monad (forM_)
import Control.Monad.Extra (maybeM, whenM)
import Data.Functor ((<&>))
import Data.Map (Map)
import Data.Pool (Pool)
import Data.Time (getCurrentTime, utctDay)
import Data.Time.Calendar (Day)
import Data.Time.Format.ISO8601 (iso8601Show)
import Data.UUID (UUID)
import qualified Data.UUID as UUID
import Database.Persist (Entity (..), delete, entityVal,
get, insert, selectList, (==.))
import Database.Persist.Sql (SqlBackend, PersistFieldSql,
runSqlPool)
import GHC.Generics (Generic)
import Persist (AmendmentStatus,
Announcement (..),
EntityField (..), Key (..),
ScheduleAmendment (ScheduleAmendment),
runSql)
import Server.Util (Service, redirect)
import Text.ProtocolBuffers (Default (defaultValue))
import Web.FormUrlEncoded (FromForm)
import Fmt ((+|), (|+))
import Yesod
import Data.List (lookup)
import Text.Read (readMaybe)
import Text.Blaze.Html (ToMarkup(..))
import qualified Data.Vector as V
import GTFS
data ControlRoom = ControlRoom
{ getBaseurl :: Text
, getGtfs :: GTFS
, getPool :: Pool SqlBackend
}
mkYesod "ControlRoom" [parseRoutes|
/main MainR GET
/train/#TripID/#Day TrainViewR GET
|]
instance Yesod ControlRoom where
approot = ApprootMaster (\cr -> getBaseurl cr)
-- which backend we're using and how to run an action.
instance YesodPersist ControlRoom where
type YesodPersistBackend ControlRoom = SqlBackend
runDB action = do
pool <- getYesod <&> getPool
runSqlPool action pool
getMainR :: Handler Html
getMainR = do
req <- getRequest
let maybeDay = lookup "day" (reqGetParams req) >>= (readMaybe . T.unpack)
day <- liftIO $ maybeM (getCurrentTime <&> utctDay) pure (pure maybeDay)
gtfs <- getYesod <&> getGtfs
let trips = tripsOnDay gtfs day
defaultLayout [whamlet|
<h1>Trips on #{iso8601Show day}
<ol>
$forall Trip{..} <- trips
<li><a href="@{TrainViewR tripTripID day}">#{tripTripID}</a>
: #{stopDeparture (V.head tripStops)} #{stationName (stopStation (V.head tripStops))}
|] -- TODO: display stuff
getTrainViewR :: TripID -> Day -> Handler Html
getTrainViewR trip day = do
GTFS{..} <- getYesod <&> getGtfs
case M.lookup trip trips of
Nothing -> notFound
Just res@Trip{..} -> do
anns <- runDB $ selectList [ AnnouncementTrip ==. trip, AnnouncementDay ==. day ] []
defaultLayout [whamlet|
<h1>#{tripTripID} on #{iso8601Show day}
<h2>Announcements
<ul>
$forall Entity (AnnouncementKey uuid) Announcement{..} <- anns
<li><em>#{announcementHeader}: #{announcementMessage}</em> <a href="">delete</a>
$if null anns
<li><em>(none)</em>
<li><a href="">Add Announcement</a>
<h2>Stops
<ol>
$forall Stop{..} <- tripStops
<div>(#{stopSequence}) #{stopArrival} #{stationName stopStation}
<h2>Vehicle Position
<div> Todo!
|]
instance ToMarkup Time where
toMarkup time =
toMarkup (show time)
-- type ControlRoomAPI =
-- "main" :> QueryParam "day" Day :> Get '[HTML] (Day, Map TripID (Trip Deep Deep))
-- :<|> "train" :> Capture "tripID" TripID :> Capture "day" Day :> Get '[HTML] TrainView
-- :<|> "trips" :> Get '[HTML] (Map TripID (Trip Deep Deep))
-- :<|> "trip" :> Capture "tripId" TripID :> Get '[HTML] (Trip Deep Deep)
-- :<|> ControlRoomCranks
-- -- | train infra seems to involve turning lots of cranks, so here have some!
-- type ControlRoomCranks =
-- "train" :> "cancel" :> ReqBody '[FormUrlEncoded] Form :> Post '[PlainText] NoContent
-- :<|> "train" :> "del-announce" :> Capture "uuid" UUID :> Get '[PlainText] NoContent
-- :<|> "train" :> "announce" :> Capture "tripId" TripID :> Capture "day" Day :> ReqBody '[FormUrlEncoded] TrainAnnounceF :> Post '[PlainText] NoContent
-- :<|> "train" :> "date" :> Capture "tripId" TripID :> ReqBody '[FormUrlEncoded] TrainDateF :> Post '[PlainText] NoContent
-- :<|> "train" :> "date" :> Capture "tripId" TripID :> QueryParam' '[Required] "" TrainDateF :> Post '[PlainText] NoContent
-- :<|> "train" :> "delay" :> ReqBody '[FormUrlEncoded] Form :> Post '[PlainText] NoContent
-- :<|> "train" :> "metainfo" :> ReqBody '[FormUrlEncoded] Form :> EmptyAPI
-- :<|> "trip" :> "new" :> ReqBody '[FormUrlEncoded] Form :> EmptyAPI
-- data TrainAnnounceF = TrainAnnounceF
-- { taHeader :: Text
-- , taMsg :: Text
-- , taLogTime :: Maybe Bool
-- } deriving (Generic, ToHtmlForm, FromForm)
-- -- | TODO: can also be "normal"?
-- data TrainDateF = TrainDateF
-- { tdDay :: Day
-- , tdStatus :: AmendmentStatus
-- } deriving (Generic, ToHtmlForm, FromForm)
-- controlRoomServer :: GTFS -> Pool SqlBackend -> Service ControlRoomAPI
-- controlRoomServer gtfs@GTFS{..} dbpool = handleTimetable :<|> handleTrain :<|> handleTrips :<|> handleTrip
-- :<|> controlRoomCranks dbpool
-- where handleTrain trip day = case M.lookup trip trips of
-- Just res -> do
-- as <- runSql dbpool
-- $ selectList [ AnnouncementTrip ==. trip, AnnouncementDay ==. day ] []
-- pure (TrainView day res as True) -- TODO: can't just assume it runs that day …
-- Nothing -> throwError err404
-- handleTimetable maybeDay = do
-- -- TODO: resolve "overlay" trips (perhaps just additional CalendarDates?)
-- day <- liftIO $ maybeM (getCurrentTime <&> utctDay) pure (pure maybeDay)
-- pure $ (day, tripsOnDay gtfs day)
-- handleTrips = pure trips
-- handleTrip tripId = case M.lookup tripId trips of
-- Just trip -> pure trip
-- Nothing -> throwError err404
-- controlRoomCranks :: Pool SqlBackend -> Service ControlRoomCranks
-- controlRoomCranks dbpool = undefined :<|> handleAnnounceDel :<|> handleAnnounce :<|> handleDate :<|> handleDate :<|> undefined
-- where handleAnnounce tripID day TrainAnnounceF{..} = do
-- now <- liftIO $ getCurrentTime
-- AnnouncementKey uuid <- runSql dbpool $ insert $ Announcement
-- { announcementTrip = tripID
-- , announcementMessage = taMsg
-- , announcementHeader = taHeader
-- , announcementDay = day
-- , announcementUrl = Nothing
-- , announcementAnnouncedAt =
-- fmap (const now) taLogTime
-- }
-- redirect ("/cr/train/"<>C8.pack (T.unpack tripID)<>"/"<>C8.pack (iso8601Show day))
-- handleAnnounceDel uuid = do
-- ann <- runSql dbpool $ do
-- a <- get (AnnouncementKey uuid)
-- delete (AnnouncementKey uuid)
-- pure a
-- case ann of
-- Nothing -> throwError err404
-- Just Announcement{..} ->
-- redirect ("/cr/train/"+|announcementTrip|+"/"+| iso8601Show announcementDay|+"")
-- handleDate tripId TrainDateF{..} = do
-- -- TODO: check that tripId exists
-- runSql dbpool $ insert $ ScheduleAmendment tripId tdDay tdStatus
-- redirect ("/cr/train/"+|tripId|+"/"+| iso8601Show tdDay|+"")
-- instance ToHtmlFormInput CalendarExceptionType
-- instance ToHtmlForm CalendarDate
-- instance ToHtml TrainView where
-- toHtml (TrainView day Trip{..} as running) = crPage tripTripID $ do
-- unless running $ do
-- div_ [class_ "warning"] "Warning: Trip not running on this day!"
-- h2_ "Announcements"
-- ul_ $ do
-- unless (null as) $ forM_ as $ \(Entity (AnnouncementKey uuid) Announcement{..}) -> do
-- li_ $ do
-- em_ (toHtml announcementHeader); ": "; toHtml announcementMessage
-- " "; a_ [href_ $ "/cr/train/del-announce/"<>UUID.toText uuid] "delete"
-- li_ $ do
-- "Add Announcement:"
-- toHtmlForm (defaultValue {formAction = Just ("/cr/train/announce/"<>tripTripID<>"/"<>(T.pack . iso8601Show) day) })
-- (Proxy @TrainAnnounceF)
-- h2_ "Stops"
-- ol_ $ forM_ tripStops $ \Stop{..} -> do
-- div_ (toHtml (stationName stopStation))
-- h2_ "Vehicle Position"
-- div_ "todo!"
-- h2_ "Cancellation Status"
-- a_ [href_ ("/cr/train/date/"+|tripTripID|+"?tdDate="+|iso8601Show day|+"&tdStatus=Cancelled")] "Cancel"
-- instance ToHtml (Day, Map TripID (Trip Deep Deep)) where
-- toHtml (day, trips) = crPage ("trips on " <> shownDay) $ do
-- ol_ $ forM_ trips $ \Trip{..} -> li_ $ do
-- a_ [href_ ("/cr/train/"<>tripTripID<>"/"<>shownDay)] (toHtml tripTripID)
-- when (null trips) $ do
-- em_ "(none)"
-- where shownDay = T.pack (iso8601Show day)
-- -- | control room page
-- crPage :: Monad m => Text -> HtmlT m () -> HtmlT m ()
-- crPage title content = do
-- h1_ (toHtml title)
-- main_ content
|
