module Main where

import qualified Data.ByteString.Lazy.Char8 as ByteString
import MiniManifest.Json
  ( decodeManifest
  , encodeManifest
  , parseManifestArgs
  , renderManifest
  )
import System.Environment (getArgs)
import System.Exit (die)

main :: IO ()
main = do
  args <- getArgs
  let inputArgs =
        case args of
          [] -> ["api", "production", "3", "platform,security", "canary:10"]
          _ -> args

  case parseManifestArgs inputArgs of
    Left err -> die err
    Right manifest -> do
      let encodedManifest = encodeManifest manifest
      ByteString.putStrLn encodedManifest
      case decodeManifest encodedManifest of
        Left err -> die err
        Right decodedManifest -> putStrLn (renderManifest decodedManifest)