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module Utils.Classes (rankings) where
import Control.Monad.SariulClocks
import Text.XHtml
import Types.Session
import Types.Classes
import Types.Scores
import Utils.Xhtml
import Data.List (sortBy)
import Data.Function (on)
import Text.XHtml.Bootstrap
import Control.Monad (liftM, liftM2)
-- Make the columns with rankingColumns, and then transpose them so
-- that we can make HTML.
-- TODO: Do this as two composed folds (point-free), rather than
-- three: first one accumulates to list of three rows (each step adds
-- to all three rows) and second turns list of three rows into Html.
--
-- This also means that we can have the whole column with a meaningful
-- blue background colour for the current class and the winning two
-- classes, not only the first row.
rankings' :: Maybe Class -> ScoresList -> ([Html], [Html], [Html])
rankings' theClass theScores = foldr step ([], [], []) . sortBy (flip $ (compare `on` snd)) $ theScores
where
columnsBeforeWinners = length theScores
step (thisClass, (Score points timeWasted)) (top, middle, bottom) =
let cell = if Just thisClass == theClass
then bootstrapCellClass "info"
else if columnsBeforeWinners - 2 <= length top
then bootstrapCellClass "success"
else td
in ( (cell << strong << (niceDashes . show) thisClass) : top
, (cell << show points) : middle
, ((if timeWasted >= 60 then bootstrapCellClass "danger" else cell) << secondsToTime timeWasted) : bottom )
rankings :: SariulClocksCGI Html
rankings = do
(top, middle, bottom) <- liftM2 rankings' (liftM currentClass getSession) getScores
return (thediv # "container" << thediv # "col-md-12" <<
table # "table table-bordered table-centered table-chunky"
<< ((tr << top) +++ (tr << middle) +++ (tr << bottom)))
-- rankings :: Maybe Class -> ScoresList -> Html
-- rankings currentClass scores = table ! [htmlAttr "class" (noHtml +++ "table table-bordered table-centered table-chunky")]
-- << foldr (\row acc -> (tr << row) +++ acc) noHtml (rankings' currentClass scores)
-- rankings' :: Maybe Class -> ScoresList -> [Html]
-- rankings' currentClass scores = foldr step [noHtml, noHtml, noHtml] (rankingColumns currentClass scores)
-- where
-- step (first, second, third) [firstRow, secondRow, thirdRow] =
-- [first +++ firstRow, second +++ secondRow, third +++ thirdRow]
secondsToTime :: Int -> String
secondsToTime n = minutes' ++ ":" ++ seconds'
where
minutes = n `quot` 60
seconds = n `mod` 60
minutes' = show minutes
seconds'
| seconds > 9 = show seconds
| otherwise = '0' : show seconds
-- Makes <td class="contextualClass">.
bootstrapCellClass :: String -> (Html -> Html)
bootstrapCellClass contextualClass = td ! [htmlAttr "class" (noHtml +++ contextualClass)]
|
