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fradrive-old/src/Handler/Course/Show.hs
2022-12-13 19:39:37 +01:00

263 lines
16 KiB
Haskell

-- SPDX-FileCopyrightText: 2022 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <sarah.vaupel@ifi.lmu.de>,Sarah Vaupel <vaupel.sarah@campus.lmu.de>,Winnie Ros <winnie.ros@campus.lmu.de>
--
-- SPDX-License-Identifier: AGPL-3.0-or-later
module Handler.Course.Show
( getCShowR
) where
import Import
import Utils.Course
import Utils.Form
import Handler.Utils
import Handler.Utils.Course
import Handler.Utils.Tutorial
import qualified Data.CaseInsensitive as CI
import qualified Data.Map as Map
import qualified Database.Esqueleto.Legacy as E
import qualified Database.Esqueleto.Utils as E
import Database.Esqueleto.Utils.TH
import Handler.Course.Register
import Handler.Exam.List (mkExamTable)
getCShowR :: TermId -> SchoolId -> CourseShorthand -> Handler Html
getCShowR tid ssh csh = do
mbAid <- maybeAuthId
now <- liftIO getCurrentTime
(cid,course,courseVisible,schoolName,participants,registration,lecturers,assistants,administrators,correctors,tutors,news,events,submissionGroup,_mayReRegister,(mayViewSheets, mayViewAnySheet), (mayViewMaterials, mayViewAnyMaterial)) <- runDB . maybeT notFound $ do
[(E.Entity cid course, E.Value courseVisible, E.Value schoolName, E.Value participants, fmap entityVal -> registration)]
<- lift . E.select . E.from $
\((school `E.InnerJoin` course) `E.LeftOuterJoin` participant) -> do
E.on $ E.just (course E.^. CourseId) E.==. participant E.?. CourseParticipantCourse
E.&&. E.val mbAid E.==. participant E.?. CourseParticipantUser
E.&&. participant E.?. CourseParticipantState E.==. E.just (E.val CourseParticipantActive)
E.on $ course E.^. CourseSchool E.==. school E.^. SchoolId
E.where_ $ course E.^. CourseTerm E.==. E.val tid
E.&&. course E.^. CourseSchool E.==. E.val ssh
E.&&. course E.^. CourseShorthand E.==. E.val csh
E.limit 1 -- we know that there is at most one match, but we tell the DB this info too
let numParticipants :: E.SqlExpr (E.Value Int)
numParticipants = E.subSelectCount . E.from $ \part ->
E.where_ $ part E.^. CourseParticipantCourse E.==. course E.^. CourseId
E.&&. part E.^. CourseParticipantState E.==. E.val CourseParticipantActive
return ( course
, courseIsVisible now course
, school E.^. SchoolName
, numParticipants
, participant
)
staff <- lift . E.select $ E.from $ \(lecturer `E.InnerJoin` user) -> do
E.on $ lecturer E.^. LecturerUser E.==. user E.^. UserId
E.where_ $ lecturer E.^. LecturerCourse E.==. E.val cid
E.orderBy [ E.asc $ user E.^. UserSurname, E.asc $ user E.^. UserDisplayName ]
return ( lecturer E.^. LecturerType
, user E.^. UserDisplayEmail, user E.^. UserDisplayName, user E.^. UserSurname)
let
(administrators', regularStaff) = partition ((==) CourseAdministrator . view _1) $ map (\(E.Value lecType, E.Value lecName, E.Value lecSurn, E.Value lecMail) -> (lecType,(lecName,lecSurn,lecMail))) staff
(lecturers', assistants') = partition ((==) CourseLecturer . view _1) regularStaff
(administrators, lecturers, assistants) = (view _2 <$> administrators', view _2 <$> lecturers', view _2 <$> assistants')
correctors <- fmap (map $(unValueN 3)) . lift . E.select $ E.from $ \(sheet `E.InnerJoin` sheetCorrector `E.InnerJoin` user) -> E.distinctOnOrderBy [E.asc $ user E.^. UserSurname, E.asc $ user E.^. UserDisplayName, E.asc $ user E.^. UserEmail ] $ do
E.on $ sheetCorrector E.^. SheetCorrectorUser E.==. user E.^. UserId
E.on $ sheetCorrector E.^. SheetCorrectorSheet E.==. sheet E.^. SheetId
E.where_ $ sheet E.^. SheetCourse E.==. E.val cid
E.orderBy [ E.asc $ user E.^. UserSurname, E.asc $ user E.^. UserDisplayName ]
return ( user E.^. UserDisplayEmail, user E.^. UserDisplayName, user E.^. UserSurname )
tutors <- fmap (map $(unValueN 3)) . lift . E.select $ E.from $ \(tutorial `E.InnerJoin` tutor `E.InnerJoin` user) -> E.distinctOnOrderBy [E.asc $ user E.^. UserSurname, E.asc $ user E.^. UserDisplayName, E.asc $ user E.^. UserEmail ] $ do
E.on $ tutor E.^. TutorUser E.==. user E.^. UserId
E.on $ tutor E.^. TutorTutorial E.==. tutorial E.^. TutorialId
E.where_ $ tutorial E.^. TutorialCourse E.==. E.val cid
E.orderBy [ E.asc $ user E.^. UserSurname, E.asc $ user E.^. UserDisplayName ]
return ( user E.^. UserDisplayEmail, user E.^. UserDisplayName, user E.^. UserSurname )
news' <- lift $ selectList [ CourseNewsCourse ==. cid ] [ Desc CourseNewsVisibleFrom, Desc CourseNewsTitle, Desc CourseNewsSummary, Desc CourseNewsContent ]
cTime <- NTop . Just <$> liftIO getCurrentTime
news <- forMaybeM news' $ \(Entity nId n@CourseNews{..}) -> do
cID <- encrypt nId :: MaybeT (MaybeT DB) CryptoUUIDCourseNews
guardM . lift . lift . hasReadAccessTo $ CNewsR tid ssh csh cID CNShowR
let visible = cTime >= NTop courseNewsVisibleFrom
files' <- lift . lift . E.select . E.from $ \newsFile -> do
E.where_ $ newsFile E.^. CourseNewsFileNews E.==. E.val nId
return (E.isNothing $ newsFile E.^. CourseNewsFileContent, newsFile E.^. CourseNewsFileTitle)
let files'' = files'
& over (mapped . _1) E.unValue
& over (mapped . _2) E.unValue
lastEditText <- formatTime SelFormatDateTime $ maybe id max (guardOn visible =<< courseNewsVisibleFrom) courseNewsLastEdit
mayEditNews <- lift . lift . hasWriteAccessTo $ CNewsR tid ssh csh cID CNEditR
mayDelete <- lift . lift . hasWriteAccessTo $ CNewsR tid ssh csh cID CNDeleteR
files <- lift . lift $ forM files'' $ \f@(_isDir, fPath) -> fmap (f ,) . toTextUrl . CNewsR tid ssh csh cID $ CNFileR fPath
archiveUrl <- lift . lift . toTextUrl $ CNewsR tid ssh csh cID CNArchiveR
return (cID, n, visible, files, lastEditText, mayEditNews, mayDelete, archiveUrl)
events' <- fmap (sortOn $ courseEventTime . entityVal . view _1) . lift . E.select . E.from $ \courseEvent -> do
E.where_ $ courseEvent E.^. CourseEventCourse E.==. E.val cid
let showRoom = maybe E.false (flip showCourseEventRoom courseEvent . E.val) mbAid
E.||. E.not_ (courseEvent E.^. CourseEventRoomHidden)
return (courseEvent, showRoom)
events <- mapM (\(Entity evId ev, E.Value showRoom) -> (, ev, showRoom) <$> encrypt evId) events'
hasSubmissionGroups <- lift . E.selectExists . E.from $ \(submissionGroupUser `E.InnerJoin` submissionGroup) -> do
E.on $ submissionGroupUser E.^. SubmissionGroupUserSubmissionGroup E.==. submissionGroup E.^. SubmissionGroupId
E.where_ $ submissionGroup E.^. SubmissionGroupCourse E.==. E.val cid
submissionGroup' <- lift . for mbAid $ \uid ->
fmap (listToMaybe . fmap E.unValue) . E.select . E.from $ \(submissionGroupUser `E.InnerJoin` submissionGroup) -> do
E.on $ submissionGroupUser E.^. SubmissionGroupUserSubmissionGroup E.==. submissionGroup E.^. SubmissionGroupId
E.where_ $ submissionGroup E.^. SubmissionGroupCourse E.==. E.val cid
E.where_ $ submissionGroupUser E.^. SubmissionGroupUserUser E.==. E.val uid
return $ submissionGroup E.^. SubmissionGroupName
let submissionGroup = guardOnM (hasSubmissionGroups && is _Just registration) submissionGroup'
mayReRegister <- lift . courseMayReRegister $ Entity cid course
mayViewSheets <- lift . hasReadAccessTo $ CourseR tid ssh csh SheetListR
sheets <- lift . E.select . E.from $ \sheet -> do
E.where_ $ sheet E.^. SheetCourse E.==. E.val cid
return $ sheet E.^. SheetName
mayViewAnySheet <- lift . anyM sheets $ \(E.Value shn) -> hasReadAccessTo $ CSheetR tid ssh csh shn SShowR
mayViewMaterials <- lift . hasReadAccessTo $ CourseR tid ssh csh MaterialListR
materials <- lift . E.select . E.from $ \material -> do
E.where_ $ material E.^. MaterialCourse E.==. E.val cid
return $ material E.^. MaterialName
mayViewAnyMaterial <- lift . anyM materials $ \(E.Value mnm) -> hasReadAccessTo $ CMaterialR tid ssh csh mnm MShowR
return (cid,course,courseVisible,schoolName,participants,registration,lecturers,assistants,administrators,correctors,tutors,news,events,submissionGroup,mayReRegister, (mayViewSheets, mayViewAnySheet), (mayViewMaterials, mayViewAnyMaterial))
mDereg <- traverse (formatTime SelFormatDateTime) $ courseDeregisterUntil course
regForm <- if
| is _Just mbAid -> do
(courseRegisterForm', regButton) <- courseRegisterForm (Entity cid course)
(regWidget, regEnctype) <- generateFormPost $ renderAForm FormStandard courseRegisterForm'
return $ wrapForm' regButton regWidget def
{ formAction = Just . SomeRoute $ CourseR tid ssh csh CRegisterR
, formEncoding = regEnctype
, formSubmit = FormSubmit
}
| otherwise
-> return . modal $(widgetFile "course/login-to-register") . Left . SomeRoute $ AuthR LoginR
registrationOpen <- hasWriteAccessTo $ CourseR tid ssh csh CRegisterR
MsgRenderer mr <- getMsgRenderer
let
tutorialDBTable = DBTable{..}
where
resultTutorial :: Lens' (DBRow (Entity Tutorial, Bool)) (Entity Tutorial)
resultTutorial = _dbrOutput . _1
resultShowRoom = _dbrOutput . _2
dbtSQLQuery tutorial = do
E.where_ $ tutorial E.^. TutorialCourse E.==. E.val cid
let showRoom = maybe E.false (flip showTutorialRoom tutorial . E.val) mbAid
E.||. E.not_ (tutorial E.^. TutorialRoomHidden)
return (tutorial, showRoom)
dbtRowKey = (E.^. TutorialId)
dbtProj = over (_dbrOutput . _2) E.unValue <$> dbtProjId
dbtColonnade = dbColonnade $ mconcat
[ sortable (Just "type") (i18nCell MsgTableTutorialType) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> textCell $ CI.original tutorialType
, sortable (Just "name") (i18nCell MsgTableTutorialName) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> indicatorCell <> anchorCell (CTutorialR tid ssh csh tutorialName TUsersR) [whamlet|#{tutorialName}|]
, sortable (Just "tutors") (i18nCell MsgTableTutorialTutors) $ \(view $ resultTutorial . _entityKey -> tutid) -> sqlCell $ do
tutTutors <- fmap (map $(unValueN 3)) . E.select . E.from $ \(tutor `E.InnerJoin` user) -> do
E.on $ tutor E.^. TutorUser E.==. user E.^. UserId
E.where_ $ tutor E.^. TutorTutorial E.==. E.val tutid
return (user E.^. UserEmail, user E.^. UserDisplayName, user E.^. UserSurname)
return [whamlet|
$newline never
<ul .list--iconless .list--inline .list--comma-separated>
$forall tutor <- tutTutors
<li>
^{nameEmailWidget' tutor}
|]
, sortable (Just "room") (i18nCell MsgTableTutorialRoom) $ \res -> if
| res ^. resultShowRoom -> maybe (i18nCell MsgTableTutorialRoomIsUnset) roomReferenceCell $ views (resultTutorial . _entityVal) tutorialRoom res
| otherwise -> i18nCell MsgTableTutorialRoomIsHidden & addCellClass ("explanation" :: Text)
, sortable Nothing (i18nCell MsgTableTutorialTime) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> occurrencesCell tutorialTime
, sortable (Just "register-from") (i18nCell MsgTutorialRegisterFrom) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> maybeDateTimeCell tutorialRegisterFrom
, sortable (Just "register-to") (i18nCell MsgTutorialRegisterTo) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> maybeDateTimeCell tutorialRegisterTo
, sortable (Just "deregister-until") (i18nCell MsgTableTutorialDeregisterUntil) $ \(view $ resultTutorial . _entityVal -> Tutorial{..}) -> maybeDateTimeCell tutorialDeregisterUntil
, sortable Nothing (i18nCell MsgTutorialFreeCapacity) $ \(view resultTutorial -> Entity tutid Tutorial{..}) -> case tutorialCapacity of
Nothing -> mempty
Just tutorialCapacity' -> sqlCell $ do
freeCapacity <- fmap (maybe 0 (max 0 . E.unValue) . listToMaybe)
. E.select $ let numParticipants :: E.SqlExpr (E.Value Int)
numParticipants = E.subSelectCount . E.from $ \participant ->
E.where_ $ participant E.^. TutorialParticipantTutorial E.==. E.val tutid
in return $ E.val tutorialCapacity' E.-. numParticipants
return . toWidget $ tshow freeCapacity
, sortable Nothing (mempty & cellAttrs <>~ pure ("uw-hide-columns--hider-label", mr MsgTableActionsHead)) $ \(view resultTutorial -> Entity tutId Tutorial{..}) -> sqlCell $ do
mayRegister <- (== Authorized) <$> evalAccessDB (CTutorialR tid ssh csh tutorialName TRegisterR) True
isRegistered <- case mbAid of
Nothing -> return False
Just uid -> existsBy $ UniqueTutorialParticipant tutId uid
if
| mayRegister -> do
(tutRegisterForm, tutRegisterEnctype) <- liftHandler . generateFormPost . buttonForm' $ bool [BtnRegister] [BtnDeregister] isRegistered
return $ wrapForm tutRegisterForm def
{ formAction = Just . SomeRoute $ CTutorialR tid ssh csh tutorialName TRegisterR
, formEncoding = tutRegisterEnctype
, formSubmit = FormNoSubmit
}
| isRegistered -> return [whamlet|_{MsgTutorialRegistered}|]
| otherwise -> return mempty
]
dbtSorting = Map.fromList
[ ("type", SortColumn $ \tutorial -> tutorial E.^. TutorialType )
, ("name", SortColumn $ \tutorial -> tutorial E.^. TutorialName )
, ("room", SortColumn $ \tutorial -> tutorial E.^. TutorialRoom )
, ("register-from", SortColumn $ \tutorial -> tutorial E.^. TutorialRegisterFrom )
, ("register-to", SortColumn $ \tutorial -> tutorial E.^. TutorialRegisterTo )
, ("deregister-until", SortColumn $ \tutorial -> tutorial E.^. TutorialDeregisterUntil )
, ( "tutors"
, SortColumn $ \tutorial -> E.subSelectMaybe . E.from $ \(tutor `E.InnerJoin` user) -> do
E.on $ tutor E.^. TutorUser E.==. user E.^. UserId
E.where_ $ tutorial E.^. TutorialId E.==. tutor E.^. TutorTutorial
return . E.min_ $ user E.^. UserSurname
)
]
dbtFilter = Map.empty
dbtFilterUI = const mempty
dbtStyle = def
dbtParams = def
dbtIdent :: Text
dbtIdent = "tutorials"
dbtCsvEncode = noCsvEncode
dbtCsvDecode = Nothing
dbtExtraReps = []
tutorialDBTableValidator = def
& defaultSorting [SortAscBy "type", SortAscBy "name"]
(Any hasTutorials, tutorialTable) <- runDB $ dbTable tutorialDBTableValidator tutorialDBTable
(Any hasExams, examTable) <- runDB . mkExamTable $ Entity cid course
let visibleNews = any (view _3) news
showNewsFiles fs = and
[ not $ null fs
, length fs <= 3
, all (views (_1 . _2) $ notElem pathSeparator) fs
]
hiddenEventNotes = all (\(_,CourseEvent{..},_) -> is _Nothing courseEventNote) events
Course{courseVisibleFrom,courseVisibleTo} = course
mayCreateNews <- hasWriteAccessTo $ CourseR tid ssh csh CNewsNewR
mayCreateEvents <- hasWriteAccessTo $ CourseR tid ssh csh CEventsNewR
mayEdit <- hasWriteAccessTo $ CourseR tid ssh csh CEditR
let heading = [whamlet|
$newline never
^{courseName course}
$if not courseVisible && mayEdit
\ #{iconInvisible}
|]
siteLayout heading $ do
setTitleI $ prependCourseTitle tid ssh csh (""::Text)
$(widgetFile "course")