module Main where
import System.Environment (getArgs)
import System.Posix.Process

import qualified Test.DMuCheck.Slave as Slave
import qualified Test.DMuCheck.Master as Master

import Control.Monad

localHost, localPort :: String
localHost = "127.0.0.1"
localPort = "12345"

help :: IO ()
help = do putStrLn "d-mucheck <number of slaves> <fn> <file> <props..>"
          putStrLn "E.g."
          putStrLn "  d-mucheck 4 qsort Examples/QuickCheckTest.hs 'quickCheckResult revProp' 'quickCheckResult modelProp'"

main :: IO ()
main = do
  args <- getArgs
  case args of
    ("-h":_) -> help
    (sslaves : fn : file : props) -> process sslaves fn file props
    _ -> putStrLn "use -h to get help."

process :: String -> String -> String -> [String] -> IO ()
process sslaves fn file props = do
  let host = localHost
      nport = read localPort :: Int
      nslaves = read sslaves :: Int

  forM_ [show (i + nport) | i <- [1..nslaves]] $ \port_ -> forkProcess $ do
    Slave.process host port_

  Master.process localHost localPort fn file props