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

-- |
-- Module      : $header$
-- Copyright   : (c) Laurent P René de Cotret, 2019 - present
-- License     : GNU GPL, version 2 or above
-- Maintainer  : laurent.decotret@outlook.com
-- Stability   : internal
-- Portability : portable
--
-- Rendering PlantUML markup
module Text.Pandoc.Filter.Plot.Renderers.PlantUML
  ( plantuml,
    plantumlSupportedSaveFormats,
  )
where

import Data.Char
import System.FilePath (takeDirectory, (</>))
import Text.Pandoc.Filter.Plot.Renderers.Prelude

plantuml :: PlotM (Maybe Renderer)
plantuml :: PlotM (Maybe Renderer)
plantuml = do
  Bool
avail <- PlotM Bool
plantumlAvailable
  if Bool -> Bool
not Bool
avail
    then Maybe Renderer -> PlotM (Maybe Renderer)
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Renderer
forall a. Maybe a
Nothing
    else do
      Text
cmdargs <- (Configuration -> Text) -> PlotM Text
forall a. (Configuration -> a) -> PlotM a
asksConfig Configuration -> Text
plantumlCmdArgs
      Maybe Executable
mexe <- Toolkit -> PlotM (Maybe Executable)
executable Toolkit
PlantUML
      Maybe Renderer -> PlotM (Maybe Renderer)
forall (m :: * -> *) a. Monad m => a -> m a
return (Maybe Renderer -> PlotM (Maybe Renderer))
-> Maybe Renderer -> PlotM (Maybe Renderer)
forall a b. (a -> b) -> a -> b
$
        Maybe Executable
mexe Maybe Executable
-> (Executable -> Maybe Renderer) -> Maybe Renderer
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= \exe :: Executable
exe@(Executable FilePath
_ Text
exename) ->
          Renderer -> Maybe Renderer
forall (m :: * -> *) a. Monad m => a -> m a
return
            Renderer :: Toolkit
-> Executable
-> (FigureSpec -> FilePath -> Text)
-> (OutputSpec -> Text)
-> [SaveFormat]
-> [Text -> CheckResult]
-> Text
-> (Text -> Text)
-> FilePath
-> Renderer
Renderer
              { rendererToolkit :: Toolkit
rendererToolkit = Toolkit
PlantUML,
                rendererExe :: Executable
rendererExe = Executable
exe,
                rendererCapture :: FigureSpec -> FilePath -> Text
rendererCapture = FigureSpec -> FilePath -> Text
plantumlCapture,
                rendererCommand :: OutputSpec -> Text
rendererCommand = Text -> Text -> OutputSpec -> Text
plantumlCommand Text
cmdargs Text
exename,
                rendererSupportedSaveFormats :: [SaveFormat]
rendererSupportedSaveFormats = [SaveFormat]
plantumlSupportedSaveFormats,
                rendererChecks :: [Text -> CheckResult]
rendererChecks = [Text -> CheckResult]
forall a. Monoid a => a
mempty,
                rendererLanguage :: Text
rendererLanguage = Text
"plantuml",
                rendererComment :: Text -> Text
rendererComment = Text -> Text -> Text
forall a. Monoid a => a -> a -> a
mappend Text
"' ",
                rendererScriptExtension :: FilePath
rendererScriptExtension = FilePath
".txt"
              }

plantumlSupportedSaveFormats :: [SaveFormat]
plantumlSupportedSaveFormats :: [SaveFormat]
plantumlSupportedSaveFormats = [SaveFormat
PNG, SaveFormat
PDF, SaveFormat
SVG]

plantumlCommand :: Text -> Text -> OutputSpec -> Text
plantumlCommand :: Text -> Text -> OutputSpec -> Text
plantumlCommand Text
cmdargs Text
exe OutputSpec {FilePath
FigureSpec
oCWD :: OutputSpec -> FilePath
oFigurePath :: OutputSpec -> FilePath
oScriptPath :: OutputSpec -> FilePath
oFigureSpec :: OutputSpec -> FigureSpec
oCWD :: FilePath
oFigurePath :: FilePath
oScriptPath :: FilePath
oFigureSpec :: FigureSpec
..} =
  let fmt :: FilePath
fmt = (Char -> Char) -> FilePath -> FilePath
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap Char -> Char
toLower (FilePath -> FilePath)
-> (FigureSpec -> FilePath) -> FigureSpec -> FilePath
forall b c a. (b -> c) -> (a -> b) -> a -> c
. SaveFormat -> FilePath
forall a. Show a => a -> FilePath
show (SaveFormat -> FilePath)
-> (FigureSpec -> SaveFormat) -> FigureSpec -> FilePath
forall b c a. (b -> c) -> (a -> b) -> a -> c
. FigureSpec -> SaveFormat
saveFormat (FigureSpec -> FilePath) -> FigureSpec -> FilePath
forall a b. (a -> b) -> a -> b
$ FigureSpec
oFigureSpec
      dir :: FilePath
dir = FilePath -> FilePath
takeDirectory FilePath
oFigurePath
    -- the command below works as long as the script name is the same basename
    -- as the target figure path. E.g.: script basename of pandocplot123456789.txt
    -- will result in pandocplot123456789.(extension)
   in [st|#{exe} #{cmdargs} -t#{fmt} -output "#{oCWD </> dir}" "#{normalizePath oScriptPath}"|]

normalizePath :: String -> String
normalizePath :: FilePath -> FilePath
normalizePath = (Char -> Char) -> FilePath -> FilePath
forall a b. (a -> b) -> [a] -> [b]
map Char -> Char
f
  where
    f :: Char -> Char
f Char
'\\' = Char
'/'
    f Char
x = Char
x

plantumlAvailable :: PlotM Bool
plantumlAvailable :: PlotM Bool
plantumlAvailable = do
  Maybe Executable
mexe <- Toolkit -> PlotM (Maybe Executable)
executable Toolkit
PlantUML
  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) -> do
      Text
cmdargs <- (Configuration -> Text) -> PlotM Text
forall a. (Configuration -> a) -> PlotM a
asksConfig Configuration -> Text
plantumlCmdArgs
      FilePath -> PlotM Bool -> PlotM Bool
forall a. FilePath -> PlotM a -> PlotM a
withPrependedPath FilePath
dir (PlotM Bool -> PlotM Bool) -> PlotM Bool -> PlotM Bool
forall a b. (a -> b) -> a -> b
$ (RuntimeEnv -> FilePath)
-> StateT PlotState (ReaderT RuntimeEnv IO) FilePath
forall r (m :: * -> *) a. MonadReader r m => (r -> a) -> m a
asks RuntimeEnv -> FilePath
envCWD StateT PlotState (ReaderT RuntimeEnv IO) FilePath
-> (FilePath -> PlotM Bool) -> PlotM Bool
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= (FilePath -> Text -> PlotM Bool) -> Text -> FilePath -> PlotM Bool
forall a b c. (a -> b -> c) -> b -> a -> c
flip FilePath -> Text -> PlotM Bool
commandSuccess [st|#{exe} #{cmdargs} -h|]

-- PlantUML export is entirely based on command-line arguments
-- so there is no need to modify the script itself.
plantumlCapture :: FigureSpec -> FilePath -> Script
plantumlCapture :: FigureSpec -> FilePath -> Text
plantumlCapture FigureSpec {Bool
Int
FilePath
[FilePath]
[(Text, Text)]
Attr
Text
Renderer
SaveFormat
blockAttrs :: FigureSpec -> Attr
extraAttrs :: FigureSpec -> [(Text, Text)]
dependencies :: FigureSpec -> [FilePath]
dpi :: FigureSpec -> Int
directory :: FigureSpec -> FilePath
script :: FigureSpec -> Text
withSource :: FigureSpec -> Bool
caption :: FigureSpec -> Text
renderer_ :: FigureSpec -> Renderer
blockAttrs :: Attr
extraAttrs :: [(Text, Text)]
dependencies :: [FilePath]
dpi :: Int
directory :: FilePath
saveFormat :: SaveFormat
script :: Text
withSource :: Bool
caption :: Text
renderer_ :: Renderer
saveFormat :: FigureSpec -> SaveFormat
..} FilePath
_ = Text
script