From 30e91608555839e3cb0113cdbd670e76d2d35508 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roman=20Smr=C5=BE?= <roman.smrz@seznam.cz>
Date: Sun, 13 Apr 2025 10:57:56 +0200
Subject: Output style options

Changelog: Added `--terminal-output` and `--log-output` options to set output style
---
 src/Terminal.hs | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

(limited to 'src/Terminal.hs')

diff --git a/src/Terminal.hs b/src/Terminal.hs
index aa7335c..1e71559 100644
--- a/src/Terminal.hs
+++ b/src/Terminal.hs
@@ -6,6 +6,7 @@ module Terminal (
     newLine,
     redrawLine,
     newFootnote,
+    terminalHandle,
     terminalBlinkStatus,
 ) where
 
@@ -22,7 +23,8 @@ import System.IO
 
 
 data TerminalOutput = TerminalOutput
-    { outNumLines :: MVar Int
+    { outHandle :: Handle
+    , outNumLines :: MVar Int
     , outNextFootnote :: MVar Int
     , outBlinkVar :: TVar Bool
     }
@@ -37,14 +39,14 @@ data TerminalLine = TerminalLine
     deriving (Eq)
 
 data TerminalFootnote = TerminalFootnote
-    { footnoteLine :: TerminalLine
-    , footnoteNumber :: Int
-    , footnoteText :: Text
+    { tfLine :: TerminalLine
+    , tfNumber :: Int
     }
     deriving (Eq)
 
 initTerminalOutput :: IO TerminalOutput
 initTerminalOutput = do
+    outHandle <- return stdout
     outNumLines <- newMVar 0
     outNextFootnote <- newMVar 1
     outBlinkVar <- newTVarIO False
@@ -57,7 +59,7 @@ newLine :: TerminalOutput -> Text -> IO TerminalLine
 newLine lineOutput@TerminalOutput {..} text = do
     modifyMVar outNumLines $ \lineNum -> do
         T.putStrLn text
-        hFlush stdout
+        hFlush outHandle
         return ( lineNum + 1, TerminalLine {..} )
 
 redrawLine :: TerminalLine -> Text -> IO ()
@@ -66,14 +68,17 @@ redrawLine TerminalLine {..} text = do
     withMVar outNumLines $ \total -> do
         let moveBy = total - lineNum
         T.putStr $ "\ESC[s\ESC[" <> T.pack (show moveBy) <> "F" <> text <> "\ESC[u"
-        hFlush stdout
+        hFlush outHandle
 
 newFootnote :: TerminalOutput -> Text -> IO TerminalFootnote
-newFootnote tout@TerminalOutput {..} footnoteText = do
-    modifyMVar outNextFootnote $ \footnoteNumber -> do
-        footnoteLine <- newLine tout $ "[" <> T.pack (show footnoteNumber) <> "] " <> footnoteText
-        hFlush stdout
-        return ( footnoteNumber + 1, TerminalFootnote {..} )
+newFootnote tout@TerminalOutput {..} text = do
+    modifyMVar outNextFootnote $ \tfNumber -> do
+        tfLine <- newLine tout $ "[" <> T.pack (show tfNumber) <> "] " <> text
+        hFlush outHandle
+        return ( tfNumber + 1, TerminalFootnote {..} )
+
+terminalHandle :: TerminalOutput -> Handle
+terminalHandle = outHandle
 
 terminalBlinkStatus :: TerminalOutput -> STM Bool
 terminalBlinkStatus TerminalOutput {..} = readTVar outBlinkVar
-- 
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