{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE NoImplicitPrelude #-}

-- |

-- 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 GGPlot2 plots code blocks

module Text.Pandoc.Filter.Plot.Renderers.GGPlot2
  ( ggplot2SupportedSaveFormats,
    ggplot2Command,
    ggplot2Capture,
    ggplot2Available,
  )
where

import qualified Data.Text as T
import Text.Pandoc.Filter.Plot.Renderers.Prelude

ggplot2SupportedSaveFormats :: [SaveFormat]
ggplot2SupportedSaveFormats :: [SaveFormat]
ggplot2SupportedSaveFormats = [SaveFormat
PNG, SaveFormat
PDF, SaveFormat
SVG, SaveFormat
JPG, SaveFormat
EPS, SaveFormat
TIF]

ggplot2Command :: OutputSpec -> Text -> Text
ggplot2Command :: OutputSpec -> Text -> Text
ggplot2Command OutputSpec {FilePath
FigureSpec
oFigurePath :: OutputSpec -> FilePath
oScriptPath :: OutputSpec -> FilePath
oFigureSpec :: OutputSpec -> FigureSpec
oFigurePath :: FilePath
oScriptPath :: FilePath
oFigureSpec :: FigureSpec
..} Text
exe = [st|#{exe} "#{oScriptPath}"|]

ggplot2Available :: PlotM Bool
ggplot2Available :: PlotM Bool
ggplot2Available = do
  Maybe Executable
mexe <- Toolkit -> PlotM (Maybe Executable)
executable Toolkit
GGPlot2
  case Maybe Executable
mexe of
    Maybe Executable
Nothing -> Bool -> PlotM Bool
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
    Just (Executable FilePath
dir Text
exe) ->
      FilePath -> Text -> PlotM Bool
commandSuccess FilePath
dir [st|#{exe} -e 'if(!require("ggplot2")) {quit(status=1)}'|]

ggplot2Capture :: FigureSpec -> FilePath -> Script
ggplot2Capture :: FigureSpec -> FilePath -> Text
ggplot2Capture FigureSpec
fs FilePath
fp =
  [Text] -> Text
T.unlines
    [ Text
"pdf(NULL)", -- Prevent the creation of empty Rplots.pdf

      FigureSpec -> Text
script FigureSpec
fs,
      FigureSpec -> FilePath -> Text
ggplot2CaptureFragment FigureSpec
fs FilePath
fp
    ]

ggplot2CaptureFragment :: FigureSpec -> FilePath -> Script
ggplot2CaptureFragment :: FigureSpec -> FilePath -> Text
ggplot2CaptureFragment 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
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
script :: FigureSpec -> Text
..} FilePath
fname =
  [st|
library(ggplot2) # just in case
ggsave("#{toRPath fname}", plot = last_plot(), dpi = #{dpi})
|]