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|
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DefaultSignatures #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
module Server.ControlRoom (ControlRoom(..)) where
import Control.Monad (forM_)
import Control.Monad.Extra (maybeM)
import Control.Monad.IO.Class (MonadIO (liftIO))
import qualified Data.ByteString.Char8 as C8
import Data.Functor ((<&>))
import Data.List (lookup)
import Data.Map (Map)
import qualified Data.Map as M
import Data.Pool (Pool)
import Data.Text (Text)
import qualified Data.Text as T
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 qualified Data.Vector as V
import Database.Persist (Entity (..), delete, entityVal, get,
insert, selectList, (==.))
import Database.Persist.Sql (PersistFieldSql, SqlBackend,
runSqlPool)
import Fmt ((+|), (|+))
import GHC.Generics (Generic)
import Persist (AmendmentStatus, Announcement (..),
EntityField (..), Key (..),
ScheduleAmendment (ScheduleAmendment),
runSql)
import Server.Util (Service)
import Text.Blaze.Html (ToMarkup (..))
import Text.ProtocolBuffers (Default (defaultValue))
import Text.Read (readMaybe)
import Yesod
import Yesod.Form
import GTFS
data ControlRoom = ControlRoom
{ getBaseurl :: Text
, getGtfs :: GTFS
, getPool :: Pool SqlBackend
}
mkMessage "ControlRoom" "messages" "en"
mkYesod "ControlRoom" [parseRoutes|
/ RootR GET
/trains TrainsR GET
/train/id/#TripID/#Day TrainViewR GET
/train/announce/#TripID/#Day AnnounceR POST
/train/del-announce/#UUID DelAnnounceR GET
/trips TripsViewR GET
/trip/#TripID TripViewR GET
|]
instance Yesod ControlRoom where
approot = ApprootMaster (\cr -> getBaseurl cr)
defaultLayout w = do
p <- widgetToPageContent w
msgs <- getMessages
withUrlRenderer [hamlet|
$newline never
$doctype 5
<html>
<head>
<title>Tracktrain #{pageTitle p}
$maybe description <- pageDescription p
<meta name="description" content="#{description}">
^{pageHead p}
<body>
$forall (status, msg) <- msgs
<p class="message #{status}">#{msg}
^{pageBody p}
|]
instance RenderMessage ControlRoom FormMessage where
renderMessage _ _ = defaultFormMessage
instance YesodPersist ControlRoom where
type YesodPersistBackend ControlRoom = SqlBackend
runDB action = do
pool <- getYesod <&> getPool
runSqlPool action pool
getRootR :: Handler Html
getRootR = redirect (TrainsR)
getTrainsR :: Handler Html
getTrainsR = 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 $ do
[whamlet|
<h1>Trains on #{day}
<ol>
$forall Trip{..} <- trips
<li><a href="@{TrainViewR tripTripID day}">#{tripTripID}</a>
: #{stopDeparture (V.head tripStops)} #{stationName (stopStation (V.head tripStops))}
|]
getTrainViewR :: TripID -> Day -> Handler Html
getTrainViewR trip day = do
GTFS{..} <- getYesod <&> getGtfs
(widget, enctype) <- generateFormPost (announceForm day trip)
case M.lookup trip trips of
Nothing -> notFound
Just res@Trip{..} -> do
anns <- runDB $ selectList [ AnnouncementTrip ==. trip, AnnouncementDay ==. day ] []
defaultLayout [whamlet|
<h1><a href="@{TripViewR tripTripID}">#{tripTripID}</a> _{Msgon} <a href="@?{(TrainsR, [("day", T.pack (iso8601Show day))])}">#{day}</a>
<h2>_{MsgAnnouncements}
<ul>
$forall Entity (AnnouncementKey uuid) Announcement{..} <- anns
<li><em>#{announcementHeader}: #{announcementMessage}</em> <a href="@{DelAnnounceR uuid}">delete</a>
$if null anns
<li><em>(_{MsgNone})</em>
<h3>_{MsgNewAnnouncement}
<form method=post action=@{AnnounceR trip day} enctype=#{enctype}>
^{widget}
<button>Submit
<h2>_{MsgStops}
<ol>
$forall Stop{..} <- tripStops
<div>(#{stopSequence}) #{stopArrival} #{stationName stopStation}
<h2>Vehicle Position
<div> Todo!
|]
getTripsViewR :: Handler Html
getTripsViewR = do
GTFS{..} <- getYesod <&> getGtfs
defaultLayout [whamlet|
<h1>List of Trips
<ul>
$forall Trip{..} <- trips
<li><a href="@{TripViewR tripTripID}">#{tripTripID}</a>
: #{stopDeparture (V.head tripStops)} #{stationName (stopStation (V.head tripStops))}
|]
getTripViewR :: TripID -> Handler Html
getTripViewR tripId = do
GTFS{..} <- getYesod <&> getGtfs
case M.lookup tripId trips of
Nothing -> notFound
Just Trip{..} -> defaultLayout [whamlet|
<h1>Trip #{tripTripID}
<h2>Stops
<ol>
$forall Stop{..} <- tripStops
<div>(#{stopSequence}) #{stopArrival} #{stationName stopStation}
<h2>Dates
<ul>
TODO!
|]
postAnnounceR :: TripID -> Day -> Handler Html
postAnnounceR trip day = do
((result, widget), enctype) <- runFormPost (announceForm day trip)
case result of
FormSuccess ann -> do
runDB $ insert ann
redirect (TrainViewR trip day)
_ -> defaultLayout
[whamlet|
<p>Invalid input, let's try again.
<form method=post action=@{AnnounceR trip day} enctype=#{enctype}>
^{widget}
<button>Submit
|]
getDelAnnounceR :: UUID -> Handler Html
getDelAnnounceR uuid = do
ann <- runDB $ do
a <- get (AnnouncementKey uuid)
delete (AnnouncementKey uuid)
pure a
case ann of
Nothing -> notFound
Just Announcement{..} ->
redirect (TrainViewR announcementTrip announcementDay)
announceForm :: Day -> TripID -> Html -> MForm Handler (FormResult Announcement, Widget)
announceForm day tripId = renderDivs $ Announcement
<$> pure tripId
<*> areq textField "Header" Nothing
<*> areq textField "Text" Nothing
<*> pure day
<*> aopt urlField "Link" Nothing
<*> lift (liftIO getCurrentTime <&> Just)
--- some orphans to make hamlet easier to deal with
instance ToMarkup Time where
toMarkup time =
toMarkup (show time)
instance ToMarkup Day where
toMarkup day = toMarkup (iso8601Show day)
|
