module Main where

import MiniMonadChain.Rollout
  ( approveRollout
  , catalog
  , parseRequest
  , renderRollout
  )
import System.Environment (getArgs)
import System.Exit (die)

main :: IO ()
main = do
  args <- getArgs
  let inputArg =
        case args of
          [] -> "api:production:stable:CHG-2048"
          firstArg : _ -> firstArg

  case parseRequest inputArg of
    Left err -> die err
    Right request ->
      case approveRollout catalog request of
        Left err -> die err
        Right rollout -> putStrLn (renderRollout rollout)