module Handler.Home where import Import import Utils.Lens import Handler.Utils import Handler.Utils.Table.Cells import qualified Data.Map as Map import Database.Esqueleto.Utils.TH import qualified Database.Esqueleto as E import qualified Database.Esqueleto.Utils as E getHomeR :: Handler Html getHomeR = do muid <- maybeAuthId upcomingExamsWidget <- for muid $ runDB . homeUpcomingExams defaultLayout $ do setTitleI MsgHomeHeading fromMaybe mempty upcomingExamsWidget maybe mempty homeUpcomingSheets muid homeOpenCourses homeOpenCourses :: Widget homeOpenCourses = do cTime <- liftIO getCurrentTime let tableData :: E.SqlExpr (Entity Course) -> E.SqlQuery (E.SqlExpr (Entity Course)) tableData course = do E.where_ $ E.not_ (E.isNothing $ course E.^. CourseRegisterFrom) -- DO: do this with isAuthorized in dbtProj E.&&. (course E.^. CourseRegisterFrom E.<=. E.val (Just cTime)) E.&&. ( E.isNothing (course E.^. CourseRegisterTo) E.||. course E.^. CourseRegisterTo E.>=. E.val (Just cTime) ) return course colonnade :: Colonnade Sortable (DBRow (Entity Course)) (DBCell (HandlerT UniWorX IO) ()) colonnade = mconcat [ -- dbRow sortable (Just "term") (i18nCell MsgTerm) $ \DBRow{ dbrOutput=Entity{entityVal = course} } -> msgCell $ courseTerm course , sortable (Just "school") (i18nCell MsgCourseSchool) $ \DBRow{ dbrOutput=Entity{entityVal = course} } -> msgCell $ courseSchool course , sortable (Just "course") (i18nCell MsgCourse) $ \DBRow{ dbrOutput=Entity{entityVal = course} } -> do let tid = courseTerm course ssh = courseSchool course csh = courseShorthand course anchorCell (CourseR tid ssh csh CShowR) (toWidget csh) , sortable (Just "deadline") (i18nCell MsgRegisterTo) $ \DBRow{ dbrOutput=Entity{entityVal = course} } -> cell $ traverse (formatTime SelFormatDateTime) (courseRegisterTo course) >>= maybe mempty toWidget ] courseTable <- liftHandlerT . runDB $ dbTableWidget' def DBTable { dbtSQLQuery = tableData , dbtRowKey = (E.^. CourseId) , dbtColonnade = colonnade , dbtProj = return , dbtSorting = Map.fromList [ ( "term" , SortColumn $ \course -> course E.^. CourseTerm ) , ( "school" , SortColumn $ \course -> course E.^. CourseSchool ) , ( "course" , SortColumn $ \course -> course E.^. CourseShorthand ) , ( "deadline" , SortColumn $ \course -> course E.^. CourseRegisterTo ) ] , dbtFilter = mempty {- [ ( "term" , FilterColumn $ \(course `E.InnerJoin` _ `E.InnerJoin` _ ) tids -> if | Set.null tids -> E.val True :: E.SqlExpr (E.Value Bool) | otherwise -> course E.^. CourseTerm `E.in_` E.valList (Set.toList tids) ) ] -} , dbtFilterUI = mempty , dbtStyle = def , dbtParams = def , dbtIdent = "open-courses" :: Text } $(widgetFile "home/openCourses") homeUpcomingSheets :: UserId -> Widget homeUpcomingSheets uid = do cTime <- liftIO getCurrentTime let tableData :: E.LeftOuterJoin (E.InnerJoin (E.InnerJoin (E.SqlExpr (Entity CourseParticipant)) (E.SqlExpr (Entity Course))) (E.SqlExpr (Entity Sheet))) (E.InnerJoin (E.SqlExpr (Maybe (Entity Submission))) (E.SqlExpr (Maybe (Entity SubmissionUser)))) -> E.SqlQuery ( E.SqlExpr (E.Value (Key Term)) , E.SqlExpr (E.Value SchoolId) , E.SqlExpr (E.Value CourseShorthand) , E.SqlExpr (E.Value SheetName) , E.SqlExpr (E.Value UTCTime) , E.SqlExpr (E.Value (Maybe SubmissionId))) tableData ((participant `E.InnerJoin` course `E.InnerJoin` sheet) `E.LeftOuterJoin` (submission `E.InnerJoin` subuser)) = do E.on $ submission E.?. SubmissionId E.==. subuser E.?. SubmissionUserSubmission E.&&. E.just (E.val uid) E.==. subuser E.?. SubmissionUserUser E.on $ submission E.?. SubmissionSheet E.==. E.just(sheet E.^. SheetId) E.on $ course E.^. CourseId E.==. sheet E.^. SheetCourse E.on $ course E.^. CourseId E.==. participant E.^. CourseParticipantCourse E.where_ $ participant E.^. CourseParticipantUser E.==. E.val uid E.&&. sheet E.^. SheetActiveTo E.>=. E.val cTime return ( course E.^. CourseTerm , course E.^. CourseSchool , course E.^. CourseShorthand , sheet E.^. SheetName , sheet E.^. SheetActiveTo , submission E.?. SubmissionId ) colonnade :: Colonnade Sortable (DBRow ( E.Value (Key Term) , E.Value SchoolId , E.Value CourseShorthand , E.Value SheetName , E.Value UTCTime , E.Value (Maybe SubmissionId) )) (DBCell (HandlerT UniWorX IO) ()) colonnade = mconcat [ -- dbRow -- TOOD: sortable (Just "term") (textCell MsgTerm) $ \DBRow{ dbrOutput=(view _1 -> E.Value tid) } -> sortable (Just "term") (i18nCell MsgTerm) $ \DBRow{ dbrOutput=(E.Value tid,_,_,_,_,_) } -> textCell $ toMessage tid , sortable (Just "school") (i18nCell MsgCourseSchool) $ \DBRow{ dbrOutput=(_,E.Value ssh,_,_,_,_) } -> textCell $ toMessage ssh , sortable (Just "course") (i18nCell MsgCourse) $ \DBRow{ dbrOutput=(E.Value tid, E.Value ssh, E.Value csh, _, _, _) } -> anchorCell (CourseR tid ssh csh CShowR) (toWidget csh) , sortable (Just "sheet") (i18nCell MsgSheet) $ \DBRow{ dbrOutput=(E.Value tid, E.Value ssh, E.Value csh, E.Value shn, _, _) } -> anchorCell (CSheetR tid ssh csh shn SShowR) (toWidget shn) , sortable (Just "deadline") (i18nCell MsgDeadline) $ \DBRow{ dbrOutput=(_, _, _, _, E.Value deadline, _) } -> cell $ formatTime SelFormatDateTime deadline >>= toWidget , sortable (Just "done") (i18nCell MsgDone) $ \DBRow{ dbrOutput=(E.Value tid, E.Value ssh, E.Value csh, E.Value shn, _, E.Value mbsid) } -> case mbsid of Nothing -> cell $ do let submitRoute = CSheetR tid ssh csh shn SubmissionNewR whenM (hasWriteAccessTo submitRoute) $ modal [whamlet|_{MsgMenuSubmissionNew}|] . Left $ SomeRoute submitRoute (Just sid) -> anchorCellM (CSubmissionR tid ssh csh shn <$> encrypt sid <*> pure SubShowR) (toWidget $ hasTickmark True) ] let validator = def & defaultSorting [SortDescBy "done", SortAscBy "deadline"] sheetTable <- liftHandlerT . runDB $ dbTableWidget' validator DBTable { dbtSQLQuery = tableData , dbtRowKey = \((_ `E.InnerJoin` _ `E.InnerJoin` sheet) `E.LeftOuterJoin` _) -> sheet E.^. SheetId , dbtColonnade = colonnade , dbtProj = \row@DBRow{ dbrOutput = (E.Value tid, E.Value ssh, E.Value csh, E.Value shn, _, _) } -> row <$ guardM (lift $ (== Authorized) <$> evalAccessDB (CSheetR tid ssh csh shn SShowR) False) , dbtSorting = Map.fromList [ ( "term" , SortColumn $ \(_ `E.InnerJoin` course `E.InnerJoin` _ `E.LeftOuterJoin` _) -> course E.^. CourseTerm ) , ( "school" , SortColumn $ \(_ `E.InnerJoin` course `E.InnerJoin` _ `E.LeftOuterJoin` _) -> course E.^. CourseSchool ) , ( "course" , SortColumn $ \(_ `E.InnerJoin` course `E.InnerJoin` _ `E.LeftOuterJoin` _) -> course E.^. CourseShorthand ) , ( "sheet" , SortColumn $ \(_ `E.InnerJoin` _ `E.InnerJoin` sheet `E.LeftOuterJoin` _) -> sheet E.^. SheetName ) , ( "deadline" , SortColumn $ \(_ `E.InnerJoin` _ `E.InnerJoin` sheet `E.LeftOuterJoin` _) -> sheet E.^. SheetActiveTo ) , ( "done" , SortColumn $ \(_ `E.InnerJoin` _ `E.InnerJoin` _ `E.LeftOuterJoin` (subm `E.InnerJoin` _)) -> E.isNothing $ subm E.?. SubmissionId ) ] , dbtFilter = mempty {- [ ( "term" , FilterColumn $ \(course `E.InnerJoin` _ `E.InnerJoin` _ ) tids -> if | Set.null tids -> E.val True :: E.SqlExpr (E.Value Bool) | otherwise -> course E.^. CourseTerm `E.in_` E.valList (Set.toList tids) ) ] -} , dbtFilterUI = mempty , dbtStyle = def { dbsEmptyStyle = DBESNoHeading, dbsEmptyMessage = MsgNoUpcomingSheetDeadlines } , dbtParams = def , dbtIdent = "upcoming-sheets" :: Text } $(widgetFile "home/upcomingSheets") homeUpcomingExams :: UserId -> DB Widget homeUpcomingExams uid = do now <- liftIO getCurrentTime let fortnight = addWeeks 2 now let -- code copied and slightly adapted from Handler.Course.getCShowR: examDBTable = DBTable{..} where -- for ease of refactoring: queryCourse = $(sqlIJproj 2 1) queryExam = $(sqlIJproj 2 2) lensCourse = _1 lensExam = _2 dbtSQLQuery (course `E.InnerJoin` exam) = do E.on $ course E.^. CourseId E.==. exam E.^. ExamCourse E.where_ $ E.exists $ E.from $ \participant -> E.where_ $ participant E.^. CourseParticipantUser E.==. E.val uid E.&&. participant E.^. CourseParticipantCourse E.==. course E.^. CourseId E.where_ $ E.isJust (exam E.^. ExamRegisterFrom) E.&&. exam E.^. ExamRegisterFrom E.<=. E.just (E.val fortnight) E.where_ $ E.isJust (exam E.^. ExamEnd) E.&&. exam E.^. ExamEnd E.>=. E.just (E.val now) return (course, exam) dbtRowKey = queryExam >>> (E.^. ExamId) dbtProj r@DBRow{ dbrOutput } = do let Entity _ Exam{..} = view lensExam dbrOutput Entity _ Course{..} = view lensCourse dbrOutput guardM . hasReadAccessTo $ CExamR courseTerm courseSchool courseShorthand examName EShowR -- check access rights return r dbtColonnade = dbColonnade $ mconcat [ sortable (Just "term") (i18nCell MsgTerm) $ \DBRow{ dbrOutput = view lensCourse -> Entity _ Course{..} } -> msgCell courseTerm , sortable (Just "school") (i18nCell MsgCourseSchool) $ \DBRow{ dbrOutput = view lensCourse -> Entity _ Course{..} } -> msgCell courseSchool , sortable (Just "course") (i18nCell MsgCourse) $ \DBRow{ dbrOutput = view lensCourse -> Entity _ Course{..} } -> anchorCell (CourseR courseTerm courseSchool courseShorthand CShowR) (toWgt courseShorthand) -- continue here , sortable (Just "name") (i18nCell MsgExamName) $ \DBRow{ dbrOutput } -> do let Entity _ Exam{..} = view lensExam dbrOutput Entity _ Course{..} = view lensCourse dbrOutput indicatorCell <> anchorCell (CExamR courseTerm courseSchool courseShorthand examName EShowR) (toWidget examName) , sortable (Just "register-from") (i18nCell MsgExamRegisterFrom) $ \DBRow { dbrOutput = view lensExam -> Entity _ Exam{..} } -> maybe mempty dateTimeCell examRegisterFrom , sortable (Just "register-to") (i18nCell MsgExamRegisterTo) $ \DBRow { dbrOutput = view lensExam -> Entity _ Exam{..} } -> maybe mempty dateTimeCell examRegisterTo , sortable (Just "time") (i18nCell MsgExamTime) $ \DBRow{ dbrOutput = view lensExam -> Entity _ Exam{..} } -> cell $ do startT <- formatTime SelFormatDateTime examStart endT <- traverse (\examEnd' -> formatTime (bool SelFormatDateTime SelFormatTime $ ((==) `on` utctDay) examStart examEnd') examEnd') examEnd [whamlet| $newline never #{startT} $maybe endT' <- endT \ – #{endT'} |] {- NOTE: We do not want thoughtless exam registrations, since many people click "register" and don't show up, causing logistic problems. Hence we force them here to click twice. Maybe add a captcha where users have to distinguish pictures showing pink elephants and course lecturers. , sortable Nothing mempty $ \DBRow{ dbrOutput } -> sqlCell $ do let Entity eId Exam{..} = view lensExam dbrOutput Entity _ Course{..} = view lensCourse dbrOutput mayRegister <- (== Authorized) <$> evalAccessDB (CExamR courseTerm courseSchool courseShorthand examName ERegisterR) True isRegistered <- existsBy $ UniqueExamRegistration eId uid if | mayRegister -> do (examRegisterForm, examRegisterEnctype) <- liftHandlerT . generateFormPost . buttonForm' $ bool [BtnRegister] [BtnDeregister] isRegistered return $ wrapForm examRegisterForm def { formAction = Just . SomeRoute $ CExamR courseTerm courseSchool courseShorthand examName ERegisterR , formEncoding = examRegisterEnctype , formSubmit = FormNoSubmit } | isRegistered -> return [whamlet|_{MsgExamRegistered}|] | otherwise -> return mempty -} , sortable (Just "registered") (i18nCell MsgExamRegistration ) $ \DBRow{ dbrOutput } -> sqlCell $ do let Entity eId Exam{..} = view lensExam dbrOutput Entity _ Course{..} = view lensCourse dbrOutput mayRegister <- (== Authorized) <$> evalAccessDB (CExamR courseTerm courseSchool courseShorthand examName ERegisterR) True isRegistered <- existsBy $ UniqueExamRegistration eId uid let label = bool MsgExamNotRegistered MsgExamRegistered isRegistered examUrl = CExamR courseTerm courseSchool courseShorthand examName EShowR if | mayRegister -> return $ simpleLinkI (SomeMessage label) examUrl | otherwise -> return [whamlet|_{label}|] ] dbtSorting = Map.fromList [ ("demo-both", SortColumn $ queryCourse &&& queryExam >>> (\(_course,exam)-> exam E.^. ExamName)) , ("term", SortColumn $ queryCourse >>> (E.^. CourseTerm )) , ("school", SortColumn $ queryCourse >>> (E.^. CourseSchool )) , ("course", SortColumn $ queryCourse >>> (E.^. CourseShorthand )) , ("name", SortColumn $ queryExam >>> (E.^. ExamName )) , ("time", SortColumn $ queryExam >>> (E.^. ExamStart )) , ("register-from", SortColumn $ queryExam >>> (E.^. ExamRegisterFrom )) , ("register-to", SortColumn $ queryExam >>> (E.^. ExamRegisterTo )) , ("visible", SortColumn $ queryExam >>> (E.^. ExamVisibleFrom )) , ("registered", SortColumn $ queryExam >>> (\exam -> E.exists $ E.from $ \registration -> do E.where_ $ registration E.^. ExamRegistrationUser E.==. E.val uid E.where_ $ registration E.^. ExamRegistrationExam E.==. exam E.^. ExamId )) ] dbtFilter = Map.empty dbtFilterUI = const mempty dbtStyle = def dbtParams = def dbtIdent :: Text dbtIdent = "exams" examDBTableValidator = def & defaultSorting [SortAscBy "time"] (Any hasExams, examTable) <- dbTable examDBTableValidator examDBTable return $(widgetFile "home/upcomingExams")