{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes       #-}
{-# LANGUAGE RecordWildCards   #-}
{-|
Module      : $header$
Copyright   : (c) Laurent P René de Cotret, 2020
License     : GNU GPL, version 2 or above
Maintainer  : laurent.decotret@outlook.com
Stability   : internal
Portability : portable

Rendering Matlab code blocks
-}

module Text.Pandoc.Filter.Plot.Renderers.Matlab (
      matlabSupportedSaveFormats
    , matlabCommand
    , matlabCapture
    , matlabAvailable
) where

import           System.Directory                            (exeExtension)

import           Text.Pandoc.Filter.Plot.Renderers.Prelude


matlabSupportedSaveFormats :: [SaveFormat]
matlabSupportedSaveFormats :: [SaveFormat]
matlabSupportedSaveFormats = [SaveFormat
PNG, SaveFormat
PDF, SaveFormat
SVG, SaveFormat
JPG, SaveFormat
EPS, SaveFormat
GIF, SaveFormat
TIF]


matlabCommand :: OutputSpec -> Text -> Text
matlabCommand :: OutputSpec -> Text -> Text
matlabCommand OutputSpec{FilePath
FigureSpec
oFigurePath :: OutputSpec -> FilePath
oScriptPath :: OutputSpec -> FilePath
oFigureSpec :: OutputSpec -> FigureSpec
oFigurePath :: FilePath
oScriptPath :: FilePath
oFigureSpec :: FigureSpec
..} Text
exe = [st|#{exe} -batch "run('#{oScriptPath}')"|]


-- On Windows at least, "matlab -help"  actually returns -1, even though the

-- help text is shown successfully!

-- Therefore, we cannot rely on this behavior to know if matlab is present, 

-- like other toolkits.

matlabAvailable :: PlotM Bool
matlabAvailable :: PlotM Bool
matlabAvailable = (Configuration -> FilePath) -> PlotM FilePath
forall a. (Configuration -> a) -> PlotM a
asksConfig Configuration -> FilePath
matlabExe PlotM FilePath -> (FilePath -> PlotM Bool) -> PlotM Bool
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= (\FilePath
exe -> IO Bool -> PlotM Bool
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO Bool -> PlotM Bool) -> IO Bool -> PlotM Bool
forall a b. (a -> b) -> a -> b
$ FilePath -> IO Bool
existsOnPath (FilePath
exe FilePath -> FilePath -> FilePath
forall a. Semigroup a => a -> a -> a
<> FilePath
exeExtension))


matlabCapture :: FigureSpec -> FilePath -> Script
matlabCapture :: FigureSpec -> FilePath -> Text
matlabCapture = (FigureSpec -> FilePath -> Text) -> FigureSpec -> FilePath -> Text
appendCapture FigureSpec -> FilePath -> Text
matlabCaptureFragment


matlabCaptureFragment :: FigureSpec -> FilePath -> Script
matlabCaptureFragment :: FigureSpec -> FilePath -> Text
matlabCaptureFragment FigureSpec{Bool
Int
FilePath
[FilePath]
[(Text, Text)]
Attr
Text
SaveFormat
Toolkit
blockAttrs :: FigureSpec -> Attr
extraAttrs :: FigureSpec -> [(Text, Text)]
dependencies :: FigureSpec -> [FilePath]
dpi :: FigureSpec -> Int
directory :: FigureSpec -> FilePath
saveFormat :: FigureSpec -> SaveFormat
script :: FigureSpec -> Text
withSource :: FigureSpec -> Bool
caption :: FigureSpec -> Text
toolkit :: FigureSpec -> Toolkit
blockAttrs :: Attr
extraAttrs :: [(Text, Text)]
dependencies :: [FilePath]
dpi :: Int
directory :: FilePath
saveFormat :: SaveFormat
script :: Text
withSource :: Bool
caption :: Text
toolkit :: Toolkit
..} FilePath
fname = [st|
if exist("exportgraphics")>0
    exportgraphics(gcf, '#{fname}', 'Resolution', #{dpi});
else
    saveas(gcf, '#{fname}');
end
|]