#!/usr/bin/env stack
{- stack
     --nix
     --resolver lts-11.15
     --install-ghc
     runghc
     --package random
-}

{-# LANGUAGE TypeSynonymInstances #-}

{-

Problem: Create a string array containing a representation of the 52 cards in a
standard deck, and then a second array that shuffles the 52 cards.

Start with two string arrays of the cards and suits:
Cards: 2, 3, 4, 5, 6, 7, 8, 9, 10, J, K, Q, A
Suits: Clubs, Diamonds, Aces, Spades

-}

import System.Random
import Control.Monad
import Control.Applicative

data Name
    = Two
    | Three
    | Four
    | Five
    | Six
    | Seven
    | Eight
    | Nine
    | Ten
    | Jack
    | King
    | Queen
    | Ace
    deriving (Show, Enum, Bounded)

names :: [Name]
names = [ Two .. ]

data Suit
  = Club
  | Diamond
  | Heart
  | Spade
  deriving (Show, Enum)

suits :: [Suit]
suits = [ Club .. ]

allCards :: [(Name, Suit)]
allCards = liftA2 (,) names suits

data CardsGen = CardsGen
    deriving (Show)

--instance RandomGen CardsGen where
--    genRange _ = (0, cardsLength)
--    next CardsGen = stdNext (StdGen 0 cardsLength)
--    split = stdSplit (StdGen 0 cardsLength)

suffle :: [cards] -> [cards]
suffle arr = undefined

main :: IO [()]
main = do
    sequence $ map (putStrLn.show) allCards