1 files changed, 36 insertions, 0 deletions

diff --git a/specification/app/Main.hs b/specification/app/Main.hs
new file mode 100644
index 0000000..1f2ba80
--- /dev/null
+++ b/specification/app/Main.hs
@@ -0,0 +1,36 @@
+module Main
+  ( main
+  ) where
+
+import           Text.Edifact.Common  (parseFull)
+import           Text.Edifact.D96A    (messageIFCSUM, messageDESADV)
+import           Text.Edifact.Inspect (inspect)
+import           Text.Edifact.Types   (Value)
+
+import           Control.Monad        ((>=>))
+import qualified Data.Text.IO         as TIO (putStrLn, readFile)
+import           System.Environment   (getArgs)
+
+main :: IO ()
+main = getArgs >>= dispatch
+
+dispatch :: [String] -> IO ()
+dispatch ("ifcsum" : filename : _) = readIFCSUM filename
+dispatch ("desadv" : filename : _) = readDESADV filename
+dispatch _                         = help
+
+readIFCSUM :: FilePath -> IO ()
+readIFCSUM =
+  let display = either print (TIO.putStrLn . inspect)
+  in TIO.readFile >=> display . parseFull messageIFCSUM
+
+readDESADV :: FilePath -> IO ()
+readDESADV =
+  let display = either print (TIO.putStrLn . inspect)
+  in TIO.readFile >=> display . parseFull messageDESADV
+
+help :: IO ()
+help = do
+  putStrLn "ifcsum <file> : inspect IFCSUM file for revision D96A"
+  putStrLn "desadv <file> : inspect DESADV file for revision D96A"
+  putStrLn "-h|--help     : this message"