fradrive/src/Handler/Utils/Widgets.hs

360 lines
14 KiB
Haskell

-- SPDX-FileCopyrightText: 2022-25 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Winnie Ros <winnie.ros@campus.lmu.de>,Steffen Jost <s.jost@fraport.de>
--
-- SPDX-License-Identifier: AGPL-3.0-or-later
module Handler.Utils.Widgets where
import Import
import qualified Data.Text as T
import qualified Data.CaseInsensitive as CI
import Text.Hamlet (shamletFile)
import Handler.Utils.DateTime
import qualified Data.Char as Char
import qualified Data.HashMap.Strict as Aeson -- ON UPDATE replace with: import qualified Data.Aeson.KeyMap as Aeson
import Data.Scientific
---------
-- Simple utilities for consistent display
-- Please use these throughout, to ensure that users have a consistent experience
tidFromText :: Text -> Maybe TermId
tidFromText = fmap TermKey . maybeRight . termFromText
-- | Display given UTCTime and maybe an invisible icon if it is in the future
--
-- Also see `Handler.Utils.Table.Cells.dateTimeCellVisible` for a similar function (in case of refactoring)
visibleUTCTime :: SelDateTimeFormat -> UTCTime -> Widget
visibleUTCTime dtf t = do
let timeStampWgt = formatTimeW dtf t
now <- liftIO getCurrentTime
if now >= t
then timeStampWgt
else $(widgetFile "widgets/date-time/yet-invisible")
-- | Simple link to a known route
simpleLink :: HasRoute UniWorX url => Widget -> url -> Widget
simpleLink lbl url = do
let route = urlRoute url
isAuth <- liftHandler . $cachedHereBinary route $ hasReadAccessTo route
if | isAuth -> do
tUrl <- toTextUrl url
[whamlet|
$newline never
<a href=#{tUrl}>
^{lbl}
|]
| otherwise -> lbl
simpleLinkI :: (RenderMessage UniWorX msg, HasRoute UniWorX url) => msg -> url -> Widget
simpleLinkI = simpleLink . i18n
-- | toWidget-Version of @nameHtml@, for convenience
nameWidget :: Text -- ^ userDisplayName
-> Text -- ^ userSurname
-> Widget
nameWidget displayName surname = toWidget $ nameHtml displayName surname
userWidget :: HasUser c => c -> Widget
userWidget x = nameWidget (x ^. _userDisplayName) (x ^._userSurname)
userIdWidget :: UserId -> Widget
userIdWidget uid = maybeM (msg2widget MsgUserUnknown) userWidget (liftHandler $ runDBRead $ get uid)
linkUserWidget :: HasRoute UniWorX url => (CryptoUUIDUser -> url) -> Entity User -> Widget
linkUserWidget lnk (Entity uid usr) = do
uuid <- encrypt uid
simpleLink (userWidget usr) (lnk uuid)
-- | like linkUserWidget, but on Id only. Requires DB access, use with caution
linkUserIdWidget :: HasRoute UniWorX url => (CryptoUUIDUser -> url) -> UserId -> Widget
linkUserIdWidget lnk uid = maybeM (msg2widget MsgUserUnknown) (linkUserWidget lnk . Entity uid) (liftHandler $ runDBRead $ get uid)
userEmailWidget :: HasUser c => c -> Widget
userEmailWidget x = nameEmailWidget (x ^. _userDisplayEmail) (x ^. _userDisplayName) (x ^. _userSurname)
-- | toWidget-Version of @nameEmailHtml@, for convenience
nameEmailWidget :: UserEmail -- ^ userEmail
-> Text -- ^ userDisplayName
-> Text -- ^ userSurname
-> Widget
nameEmailWidget email displayName surname = toWidget $ nameEmailHtml email displayName surname
-- | uncurried Version for @nameEmailWidget@ needed in hamlet, where TH cannot be used
nameEmailWidget' :: (UserEmail, Text, Text)-> Widget
nameEmailWidget' = $(uncurryN 3) nameEmailWidget
-- | Show user's displayName, highlighting the surname if possible.
-- Otherwise appends the surname in parenthesis
nameHtml :: Text -> Text -> Html
nameHtml displayName surname
| null surname = toHtml displayName
| otherwise = case reverse $ T.splitOn surname displayName of
[_notContained]
| (suffix:prefixes) <- reverse $ T.splitOn (T.toTitle surname) (T.toTitle displayName), notNull prefixes ->
let prefix = T.intercalate surname $ reverse prefixes
in [shamlet|$newline never
#{prefix} #
<b .surname>#{surname}
#{withLeadingSpace suffix}
|]
| (suffix:prefixes) <- reverse $ T.splitOn (fullyNormalize surname) (fullyNormalize displayName), notNull prefixes ->
let prefix = T.intercalate surname $ reverse prefixes
in [shamlet|$newline never
#{prefix} #
<b .surname>#{surname}
#{withLeadingSpace suffix}
|]
| otherwise -> [shamlet|$newline never
#{displayName} (
<b .surname>#{surname}
)|]
(suffix:prefixes) ->
let prefix = T.intercalate surname $ reverse prefixes
in [shamlet|$newline never
#{prefix}
<b .surname>#{surname}
#{withLeadingSpace suffix}
|]
[] -> error "Data.Text.splitOn returned empty list in violation of specification."
where
fullyNormalize :: Text -> Text
fullyNormalize = T.toTitle . T.unwords . map text2asciiAlphaNum . T.words
withLeadingSpace :: Text -> Text
withLeadingSpace t
| T.null t = t
| Just (' ', _) <- T.uncons t = t
| otherwise = T.cons ' ' t
nameHtml' :: HasUser u => u -> Html
nameHtml' u = nameHtml (u ^. _userDisplayName) (u ^. _userSurname)
-- | Like nameHtml just show a users displayname with hightlighted surname,
-- but also wrap the name with a mailto-link
nameEmailHtml :: UserEmail -> Text -> Text -> Html
nameEmailHtml email displayName surname =
wrapMailto email $ nameHtml displayName surname
-- | Wrap mailto around given Html using single hamlet-file for consistency
wrapMailto :: UserEmail -> Html -> Html
wrapMailto (CI.original -> email) linkText
| null email = linkText
| otherwise = $(shamletFile "templates/widgets/link-email.hamlet")
-- | Just show an email address in a standard way, for convenience inside hamlet files.
mailtoHtml :: UserEmail -> Html
mailtoHtml email = wrapMailto email $(shamletFile "templates/widgets/email.hamlet")
-- | Generic i18n text for "edited at sometime by someone"
editedByW :: SelDateTimeFormat -> UTCTime -> Text -> Widget
editedByW fmt tm usr = do
ft <- handlerToWidget $ formatTime fmt tm
[whamlet|_{MsgUtilEditedBy usr ft}|]
-- | like `modal`, but only conditionally displays the modal link only after checking access rights. WARNING: this might be too slow for large dbTable. Use `modalAccessCheckOnClick` instead
modalAccess :: Widget -> Widget -> Bool -> Route UniWorX -> Widget
modalAccess wdgtNo wdgtYes writeAccess route = do
authOk <- liftHandler . $cachedHereBinary (route, writeAccess) $ bool hasReadAccessTo hasWriteAccessTo writeAccess route
if authOk
then modal wdgtYes (Left $ SomeRoute route)
else wdgtNo
-- also see Handler.Utils.Table.Cells.companyCell
companyWidget :: Bool -> (CompanyShorthand, CompanyName, Bool) -> Widget
companyWidget = companyWidget' False
companyWidget' :: Bool -> Bool -> (CompanyShorthand, CompanyName, Bool) -> Widget
companyWidget' useShort isPrimary (csh, cname, isSupervisor)
| isPrimary, isSupervisor = simpleLink (toWgt $ name <> iconSupervisor) curl
| isPrimary = simpleLink (toWgt name ) curl
| isSupervisor = toWgt name <> simpleLink (toWgt iconSupervisor) curl
| otherwise = toWgt name
where
curl = FirmUsersR csh
corg = ciOriginal $ bool cname csh useShort
name
| isSupervisor = text2markup (corg <> " ")
| otherwise = text2markup corg
widgetMailPrefPin :: HasUser u => u -> Widget
widgetMailPrefPin usr = if not prefPost && hasPin
then [whamlet|^{modWgt} ^{pinWgt}|]
else modWgt
where
prefPost :: Bool = usr ^. _userPrefersPostal
hasPin :: Bool = isJust (usr ^. _userPinPassword)
modWgt :: Widget = toWidget $ iconLetterOrEmail prefPost
pinWgt :: Widget = toWidget iconPinProtect
---------------------
-- Status Tooltips --
---------------------
-- | generate a generic colored icon to display success or failure to user
mkErrorFlag :: Handler (Maybe Bool -> Widget)
mkErrorFlag = do
-- we abuse messageTooltip for colored icons here
msgSuccessTooltip <- messageI Success MsgMessageSuccess
msgWarningTooltip <- messageI Warning MsgMessageWarning
msgErrorTooltip <- messageI Error MsgMessageError
let flagError Nothing = messageTooltip msgWarningTooltip
flagError (Just False) = messageTooltip msgErrorTooltip
flagError (Just True) = messageTooltip msgSuccessTooltip
return flagError
----------
-- HEAT --
----------
boolHeat :: Bool -- ^ @isHot@
-> Milli
boolHeat = bool 0 1
heat :: ( Real a, Real b )
=> a -> b -> Milli
-- ^ Distinguishes @full@, zero is mapped to 1, @full@ is mapped to 0
heat (realToFrac -> full) (realToFrac -> achieved)
= fromRational $ cutOffCoPercent 0.3 (full^2) (achieved^2)
invHeat :: ( Real a, Real b )
=> a -> b -> Milli
-- ^ Distinguishes @full@, zero is mapped to 0, @full@ is mapped to 1
invHeat full achieved = 1 - heat full achieved
coHeat :: ( Real a, Real b)
=> a -> b -> Milli
-- ^ Distinguishes zero, zero is mapped to 1, @full@ is mapped to 0
coHeat full achieved = 1 - invCoHeat full achieved
invCoHeat :: ( Real a, Real b)
=> a -> b -> Milli
-- ^ Distinguishes zero, zero is mapped to 0, @full@ is mapped to 1
invCoHeat (realToFrac -> full) (realToFrac -> achieved)
= fromRational $ cutOffPercent 0.3 (full^2) (achieved^2)
dualHeat :: ( Real a, Real b, Real c )
=> a -> b -> c -> Milli
-- ^ Distinguishes zero, zero is mapped to 0, @optimal@ is mapped to 1, @full@ is mapped to 2
--
-- Falls back to `invCoHeat` if @full <= optimal@
dualHeat (realToFrac -> optimal) (realToFrac -> full) (realToFrac -> achieved)
| full <= optimal = 2 * invCoHeat full achieved
| achieved <= optimal = invCoHeat optimal achieved
| otherwise = fromRational $ 1 + cutOffPercent 0 ((full - optimal) ^ 2) ((achieved - optimal) ^ 2)
dualCoHeat :: ( Real a, Real b, Real c )
=> a -> b -> c -> Milli
-- ^ Distinguishes @full@, zero is mapped to 0, @optimal@ is mapped to 1, @full@ is mapped to 2
--
-- Falls back to `invHeat` if @full <= optimal@
dualCoHeat (realToFrac -> optimal) (realToFrac -> full) (realToFrac -> achieved)
| full <= optimal = 2 * invHeat full achieved
| achieved <= optimal = fromRational $ cutOffPercent 0 (optimal ^ 2) (achieved ^ 2)
| otherwise = 1 + invHeat (full - optimal) (achieved - optimal)
invDualHeat :: ( Real a, Real b, Real c )
=> a -> b -> c -> Milli
-- ^ Distinguishes zero, zero is mapped to 2, @optimal@ is mapped to 1, @full@ is mapped to 0
invDualHeat optimal full achieved = 2 - dualHeat optimal full achieved
invDualCoHeat :: ( Real a, Real b, Real c )
=> a -> b -> c -> Milli
-- ^ Distinguishes @full@, zero is mapped to 2, @optimal@ is mapped to 1, @full@ is mapped to 0
invDualCoHeat optimal full achieved = 2 - dualCoHeat optimal full achieved
-----------
-- COLOR --
-----------
-- TODO: someone with frontend capabilities should get rid of class tooltip__handle and check theme consistent colors
statusHtml :: MessageStatus -> Html -> Html
statusHtml sts wgt =
[shamlet|
<span .tooltip__handle .#{statusToUrgencyClass sts}>
^{wgt}
|]
statusWidget :: MessageStatus -> Widget -> Widget
statusWidget sts wgt =
[whamlet|
<span .tooltip__handle .#{statusToUrgencyClass sts}>
^{wgt}
|]
heatedWidget :: Milli -> Widget -> Widget
heatedWidget ht wgt =
[whamlet|
<span .heated style="--hotness: #{ht}">
^{wgt}
|]
examOccurrenceMappingDescriptionWidget :: ExamOccurrenceRule -> Set ExamOccurrenceMappingDescription -> Widget
examOccurrenceMappingDescriptionWidget rule descriptions = $(widgetFile "widgets/exam-occurrence-mapping-description")
where
titleCase :: [CI Char] -> String
titleCase = over _head Char.toUpper . map CI.foldedCase
doPrefix
| ExamRoomMatriculation <- rule
= False
| otherwise
= True
roomReferenceWidget :: RoomReference -> Widget
roomReferenceWidget RoomReferenceSimple{..} = msg2widget $ MsgRoomReferenceSimpleAt roomRefText
roomReferenceWidget RoomReferenceLink{..} = $(widgetFile "widgets/room-reference/link")
where
linkText = uriToString id roomRefLink mempty
instrModal = modal (i18n MsgRoomReferenceLinkInstructions) $ Right $(widgetFile "widgets/room-reference/link-instructions-modal")
roomReferenceShortWidget :: RoomReference -> Widget
roomReferenceShortWidget RoomReferenceSimple{..} = text2widget roomRefText
roomReferenceShortWidget RoomReferenceLink{..} = $(widgetFile "widgets/room-reference/link")
where
linkText = uriToString id roomRefLink mempty
instrModal = modal (i18n MsgRoomReferenceLinkInstructions) $ Right $(widgetFile "widgets/room-reference/link-instructions-modal")
----------
-- JSON --
----------
-- Data.Aeson.Encode.Pretty.encodePretty did not render in Html properly, hence jsonWidget
jsonWidget :: ToJSON a => a -> Widget
jsonWidget x = jsonWidgetAux $ toJSON x
where
jsonWidgetAux :: Value -> Widget
jsonWidgetAux Null = [whamlet|Null|]
jsonWidgetAux (Bool b) = toWidget $ boolSymbol b
jsonWidgetAux (String s) = [whamlet|#{s}|]
jsonWidgetAux (Number n)
| isInteger n = [whamlet|#{formatScientific Fixed (Just 0) n}|]
| otherwise = [whamlet|#{formatScientific Generic Nothing n}|]
jsonWidgetAux (Array l)
| 1 >= length l = foldMap jsonWidgetAux l -- empty arrays don't show
| otherwise =
[whamlet|
<ul>
$forall x <- sort l
<li>^{jsonWidgetAux x}
|]
jsonWidgetAux (Object o) = case Aeson.toList o of -- toAscList not supported
[ ] -> mempty -- empty objects don't show
[(_,v)] -> jsonWidgetAux v
r -> [whamlet|
<dl .deflist>
$forall (k,v) <- sort r
<dt .deflist__dt>#{k}
<dd .deflist__dd>^{jsonWidgetAux v}
|]