module PSCi.Message where


import Data.List (intercalate)
import qualified PSCi.Directive as D
import PSCi.Types

-- Messages

-- |
-- The help message.
--
helpMessage :: String
helpMessage = "The following commands are available:\n\n    " ++
  intercalate "\n    " (map line D.help) ++
  "\n\n" ++ extraHelp
  where
  line :: (Directive, String, String) -> String
  line (dir, arg, desc) =
    let cmd = ':' : D.stringFor dir
    in unwords [ cmd
               , replicate (11 - length cmd) ' '
               , arg
               , replicate (11 - length arg) ' '
               , desc
               ]

  extraHelp =
    "Further information is available on the PureScript wiki:\n" ++
    " --> https://github.com/purescript/purescript/wiki/psci"


-- |
-- The welcome prologue.
--
prologueMessage :: String
prologueMessage = intercalate "\n"
  [ " ____                 ____            _       _   "
  , "|  _ \\ _   _ _ __ ___/ ___|  ___ _ __(_)_ __ | |_ "
  , "| |_) | | | | '__/ _ \\___ \\ / __| '__| | '_ \\| __|"
  , "|  __/| |_| | | |  __/___) | (__| |  | | |_) | |_ "
  , "|_|    \\__,_|_|  \\___|____/ \\___|_|  |_| .__/ \\__|"
  , "                                       |_|        "
  , ""
  , ":? shows help"
  ]

-- |
-- The quit message.
--
quitMessage :: String
quitMessage = "See ya!"