From 0c677070edf9978cb85a0b521f7e6e0ef6d6b491 Mon Sep 17 00:00:00 2001
From: Chris Wells <chris@mathematicaster.org>
Date: Mon, 10 Feb 2025 12:48:38 -0600
Subject: A lot of work on aliases and the like

---
 src/Data/Journal.hs | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 src/Data/Journal.hs

(limited to 'src/Data/Journal.hs')

diff --git a/src/Data/Journal.hs b/src/Data/Journal.hs
new file mode 100644
index 0000000..ea15644
--- /dev/null
+++ b/src/Data/Journal.hs
@@ -0,0 +1,41 @@
+module Data.Journal
+    ( Journal (..)
+    , Journal_
+    , journalHtml
+    ) where
+
+import Prolog
+import Network.URI
+import Data.Aeson
+import Data.Alias
+import Data.Set qualified as S
+import Text.Blaze
+import Text.Blaze.Html
+
+import Data.Linked
+
+data Journal a = Journal
+    { title :: !a
+    , shortTitle :: !(Maybe a)
+    , link :: !(Maybe URI)
+    } deriving (Eq, Foldable, Functor, Generic, Ord, Show, Traversable)
+
+instance Binary a => Binary (Journal a)
+
+type Journal_ = Journal StrictText
+
+journalHtml :: (ToMarkup a) => Journal a -> Html
+journalHtml (Journal t st l) = linkedHtml $ Linked (maybe t id st) l (t <$ st)
+
+
+instance Ord a => ToAliases (Journal a) a where
+    toAliases (Journal t st _) = S.fromList $ t : toList st
+
+instance FromAlias a (Journal a) where
+    fromAlias t = pure $ Journal t Nothing Nothing
+
+instance FromJSON a => FromJSON (Journal a) where
+    parseJSON = withObject "Journal" $ \v -> Journal
+        <$> v .: "title"
+        <*> v .:? "short" .!= Nothing
+        <*> v .:? "link" .!= Nothing
-- 
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