Replace magic string for default Article description by a template variable and add another one for a default description for Pages

share/defaultWording.conf

@@ -1,11 +1,13 @@
 allLink = See all
 allPage = All articles{? tagged ${tag}?}
+articleDescription = A new article on ${name}
 commentsLink = Comment on the fediverse
 commentsSection = Comments
 dateFormat = en-US
 latestLink = See only latest
 latestPage = Latest articles{? tagged ${tag}?}
 metadata = {?by ${author} ?}on ${date}{? tagged ${tags}?}
+pageDescription = Read on ${name}
 pagesList = Pages
 rssLink = Subscribe
 rssTitle = Follow all articles{? tagged ${tag}?}

src/Blog/Wording.hs

@@ -26,12 +26,14 @@ variables :: Map String [Text]
 variables = Map.fromList [
       ("allLink", [])
     , ("allPage", ["tag"])
+    , ("articleDescription", ["name"])
     , ("commentsLink", [])
     , ("commentsSection", [])
     , ("dateFormat", [])
     , ("latestLink", [])
     , ("latestPage", ["tag"])
     , ("metadata", ["author", "date", "tags"])
+    , ("pageDescription", ["name"])
     , ("pagesList", [])
     , ("rssLink", [])
     , ("rssTitle", ["tag"])

src/DOM/Card.hs

@@ -9,7 +9,7 @@ module DOM.Card (
 import Article (Article(..))
 import ArticlesList (ArticlesList(..))
 import qualified ArticlesList (description)
-import Blog (Blog(..), Renderer, Skin(..))
+import Blog (Blog(..), Renderer, Skin(..), template)
 import Collection (Collection(..))
 import qualified Collection (title)
 import Control.Applicative ((<|>))
@@ -18,7 +18,7 @@ import qualified Data.Map as Map (lookup)
 import Data.Text (Text, pack)
 import Lucid (HtmlT, content_, meta_)
 import Lucid.Base (makeAttribute)
-import Markdown (MarkdownContent(..))
+import Markdown (MarkdownContent(..), metadata)
 import qualified Markdown (Markdown(..))
 import Page (Page(..))
 import Pretty ((.$))
@@ -51,7 +51,7 @@ make element siteURL = do
     sitePrefix = pack . (siteURL </>)
 
 mDImage :: (Renderer m, MarkdownContent a ) => a -> m (Maybe String)
-mDImage = return . Map.lookup "featuredImage" . Markdown.metadata . getMarkdown
+mDImage = return . Map.lookup "featuredImage" . metadata . getMarkdown
 
 mDTitle :: (Renderer m, MarkdownContent a) => a -> m String
 mDTitle = return . Markdown.title . getMarkdown
@@ -59,22 +59,23 @@ mDTitle = return . Markdown.title . getMarkdown
 mDUrlPath :: (Renderer m, MarkdownContent a) => a -> m String
 mDUrlPath a = return $ Markdown.path (getMarkdown a) <.> "html"
 
+mDDescription :: (Renderer m, MarkdownContent a) => String -> a -> m Text
+mDDescription key =
+  getDescription . Map.lookup "summary" . metadata . getMarkdown
+  where
+    getDescription = maybe defaultDescription (return . pack)
+    defaultDescription = asks name >>= template key . \v -> [("name", pack v)]
+
 instance HasCard Article where
   cardType _ = return "article"
-  description (Article (Markdown.Markdown {Markdown.metadata})) =
+  description = mDDescription "articleDescription"
-    fmap pack . getDescription $ Map.lookup "summary" metadata
-    where
-      getDescription = maybe (asks $name.$("A new article on " <>)) return
   image = mDImage
   title = mDTitle
   urlPath = mDUrlPath
 
 instance HasCard Page where
   cardType _ = return "website"
-  description page@(Page (Markdown.Markdown {Markdown.metadata})) =
+  description = mDDescription "pageDescription"
-    fmap pack . getDescription $ Map.lookup "summary" metadata
-    where
-      getDescription = maybe (title page) return
   image = mDImage
   title = mDTitle
   urlPath = mDUrlPath

test/Mock/Blog/Wording.hs

@@ -10,12 +10,14 @@ defaultWording :: Wording
 defaultWording = Wording $ Map.fromList [
       ("allLink", "See all")
     , ("allPage", "All articles{? tagged ${tag}?}")
+    , ("articleDescription", "A new article on ${name}")
     , ("commentsLink", "Comment on the fediverse")
     , ("commentsSection", "Comments")
     , ("dateFormat", "en-US")
     , ("latestLink", "See only latest")
     , ("latestPage", "Latest articles{? tagged ${tag}?}")
     , ("metadata", "{?by ${author} ?}on ${date}{? tagged ${tags}?}")
+    , ("pageDescription", "Read on ${name}")
     , ("pagesList", "Pages")
     , ("rssLink", "Subscribe")
     , ("rssTitle", "Follow all articles{? tagged ${tag}?}")