108 lines
3.3 KiB
Haskell
108 lines
3.3 KiB
Haskell
{-# LANGUAGE NamedFieldPuns #-}
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{-# LANGUAGE OverloadedStrings #-}
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module Dom (
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page
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) where
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import Article (Article(..))
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import qualified Article (preview)
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import ArticlesList (ArticlesList(..), otherLink, otherUrl, pageTitle)
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import Blog (Blog(..), Path(..), Skin(..))
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import qualified Blog (get)
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import Control.Monad.Reader (ReaderT)
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import qualified Data.Map as Map (keys)
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import Data.Monoid ((<>))
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import Data.Text (pack, empty)
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import Lucid
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import Lucid.Base (makeAttribute)
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import Prelude hiding (head)
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import Pretty ((.$))
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import System.FilePath.Posix ((</>), (<.>))
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type HtmlGenerator = HtmlT (ReaderT Blog IO)
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class Page a where
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card :: a -> HtmlGenerator ()
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content :: a -> HtmlGenerator ()
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instance Page Article where
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card (Article {title}) =
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("A new article on " <>) <$> Blog.get name
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>>= makeCard title
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content = article True
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instance Page ArticlesList where
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card al = do
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blogName <- Blog.get name
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makeCard (maybe blogName ((blogName ++ " - ") ++) $ tagged al) (pageTitle al)
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content al@(ArticlesList {featured}) = do
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preview <- Article.preview <$> (Blog.get $skin.$previewLinesCount)
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h2_ . toHtml . pack $ pageTitle al
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navigationA [href_ . pack $ otherUrl al] . toHtml . pack $ otherLink al
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div_ [class_ "articles"] (
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mapM_ (article False . preview) featured
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)
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article :: Bool -> Article -> HtmlGenerator ()
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article raw (Article {key, body, title}) = do
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url <- ("/" </>) . (</> key <.> extension) <$> (Blog.get $path.$articlesPath)
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article_ (do
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header_ (do
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aElem [href_ . pack $ url] . h1_ $ toHtml title
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)
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pre_ . toHtml $ unlines body
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)
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where
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(aElem, extension) = if raw then (a_, "md") else (navigationA, "html")
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makeCard :: String -> String -> HtmlGenerator ()
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makeCard title description = do
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og "title" title
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og "description" description
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og "image" =<< (Blog.get $skin.$cardImage)
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og "site_name" =<< Blog.get name
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where
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og attribute value = meta_ [makeAttribute "property" $ "og:" <> attribute , content_ $ pack value]
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navigationA :: Term arg result => arg -> result
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navigationA = "a" `termWith` [class_ "navigation"]
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tag :: String -> HtmlGenerator ()
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tag tagName = li_ (navigationA [href_ $ pack ("/" </> tagName)] $ toHtml tagName)
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defaultBanner :: HtmlGenerator ()
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defaultBanner = do
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div_ [id_ "header"] (
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navigationA [href_ "/"] (
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h1_ . toHtml =<< Blog.get name
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)
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)
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faviconLink :: FilePath -> HtmlGenerator ()
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faviconLink url = link_ [rel_ "shortcut icon", href_ $ pack url, type_ "image/x-icon"]
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page :: Page a => a -> HtmlGenerator ()
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page aPage =
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doctypehtml_ (do
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head_ (do
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meta_ [charset_ "utf-8"]
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title_ . toHtml =<< Blog.get name
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script_ [src_ "/js/unit.js"] empty
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script_ [src_ "/js/remarkable.min.js"] empty
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script_ [src_ "/js/hablo.js"] empty
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maybe (toHtml empty) faviconLink =<< (Blog.get $skin.$favicon)
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card aPage
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(Blog.get $skin.$head) >>= maybe (toHtml empty) toHtmlRaw
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)
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body_ (do
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(Blog.get $skin.$banner) >>= maybe defaultBanner toHtmlRaw
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div_ [id_ "navigator"] (do
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h2_ "Tags"
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ul_ . mapM_ tag . Map.keys =<< Blog.get tags
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)
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div_ [id_ "contents"] $ content aPage
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)
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)
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