{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TemplateHaskell #-}
module Widget.Entry ( entryR, hEntry ) where

import Import

import Data.Time.Format ( defaultTimeLocale, formatTime, iso8601DateFormat )
import Data.Time.Format.Human ( humanReadableTime )

data FormattedTime = FormattedTime
    { timeUnfriendly :: String
    , timeFriendly :: String
    } deriving Eq

toFormattedTime :: MonadIO m => UTCTime -> m FormattedTime
toFormattedTime time = FormattedTime (unfriendly time) <$> friendly time
    where unfriendly = formatTime defaultTimeLocale . iso8601DateFormat . Just $ "%H:%M:%S%z"
          friendly = liftIO . humanReadableTime

entryR :: Entity Entry -> Route App
entryR (Entity entryId entry) = EntryR (entryKind entry) entryId (entrySlug entry)

hEntry :: Entity Entry -> Widget
hEntry (Entity entryId entry) = do
    published <- toFormattedTime . entryPublished $ entry
    updated <- toFormattedTime . entryUpdated $ entry
    maybeAuthor <- handlerToWidget . runDB . get . entryAuthorId $ entry
    $(widgetFile "mf2/h-entry")