#! /usr/bin/env runhaskell

{-# LANGUAGE OverloadedStrings, RecordWildCards, LambdaCase #-}

import           Argo.Stack
import           Argo.Utils
import           Argo.Args
import           Turtle
import           Prelude                 hiding ( FilePath )
import           Data.Default
import           Control.Concurrent.Async
import           System.Environment
import           System.Console.ANSI
import           System.Console.ANSI.Types      ( Color )
import           Options.Applicative
import           System.Posix.Signals
import           Control.Monad
import           Data.Either
import           Data.Maybe

opts :: StackArgs -> Parser (IO ())
opts sa = hsubparser
  (  command "clean"
             (info (pure $ runClean sa) (progDesc "Clean sockets, logfiles."))
  <> command
       "daemon-only"
       (info
         (runDaemon <$> parseExtendStackArgs sa)
         (progDesc
           "Set up and launch the daemon in synchronous mode, \
           \with properly cleaned sockets, logfiles."
         )
       )
  <> command
       "full-stack"
       (info (runStack <$> parseExtendStackArgs sa)
             (progDesc "Setup stack and run a command in a container.")
       )
  <> command
       "helloworld"
       (info
         (runStack <$> parseExtendStackArgs
           (let msg = "Hello-Moto"
            in  sa { app           = "echo"
                   , args          = [msg]
                   , messageCmdOut = Just msg
                   , messageCmdErr = Just msg
                   }
           )
         )
         (progDesc
           "Test 1: Setup stack and check that a hello world app sends \
           \message back to cmd."
         )
       )
  <> command
       "perfwrapper"
       (info
         (runStack <$> parseExtendStackArgs
           (sa { manifestName     = "perfwrap.json"
               , app              = "sleep"
               , args             = ["15"]
               , messageDaemonOut = Just "progress"
               , messageDaemonErr = Just "progress"
               }
           )
         )
         (progDesc
           "Test 2: Setup stack and check that argo-perf-wrapper sends \
           \ at least one progress message up."
         )
       )
  <> help
       "Type of test to run. There are extensive options under each action,\
       \ but be careful, these do not all have the same defaults. The default\
       \ values are printed when you call --help on these actions."
  )

main :: IO ()
main = do
  manifests <- getEnv "MANIFESTS"
  let a = def { manifestDir = decodeString manifests }
  join $ execParser (info (opts a <**> helper) idm)

runStack :: StackArgs -> IO ()
runStack a@StackArgs {..} = sh $ runSimpleStack a >>= \case
  FoundMessage -> printSuccess "Found message!\n" >> exit ExitSuccess
  DaemonDied ->
    printError "Daemon died unexpectedly.\n" >> exit (ExitFailure 1)
  CmdDied -> do
    when
        (   or
        $   isJust
        <$> [messageDaemonOut, messageDaemonErr, messageCmdOut, messageCmdErr]
        )
      $ printError "Did not find message.\n"
    exit (ExitFailure 1)

runClean :: StackArgs -> IO ()
runClean = sh . cleanLeftovers

runDaemon :: StackArgs -> IO ()
runDaemon a = sh $ cleanLeftovers a >> prepareDaemon a >>= liftIO