module Terminal.Game.Layer.ImperativeSpec where

import Terminal.Game.Layer.Imperative
import Terminal.Game.Layer.Object.Interface
import Terminal.Game.Layer.Object.Narrate
import Alone

import Test.Hspec
import Test.Hspec.QuickCheck
import Test.QuickCheck


spec :: Spec
spec = do

  let nd = error "<not-defined>"
      s :: (Integer, Bool, Integer)
      s = (0, False, 0)
      lf (t, True, i) Tick         = (t+1, True, i+1)
      lf (t, b,    i) Tick         = (t+1, b,    i  )
      lf (t, _,    i) (KeyPress _) = (t,   True, i  )
      qf (3, _,    _) = True
      qf _            = False
      es = [Tick, KeyPress 'c', KeyPress 'c', Tick, Tick]
      g = Game 10 10 nd s lf nd qf

  describe "runGame" $ do
    it "does not confuse input and logic" $
      testGame g es `shouldBe` (3, True, 2)

  describe "testGame" $ do
    r <- runIO $ readRecord "test/alone-recors-test.gr"
    it "tests a game" $
        testGame aloneInARoom r `shouldBe` MyState (20, 66) Stop True
    it "does not hang on empty/unclosed input" $
        testGame aloneInARoom [Tick] `shouldBe` MyState (10, 10) Stop False
    modifyMaxSize (const 1000) $
      it "does not crash/hang on random input" $ property $
        \e -> let a = testGame aloneInARoom e in a == a

  -- todo recordGame untestable? [test]
  -- describe "recordGame" $ do
  --   it "does write on file even when an exception occours" $
  --     testGame g es `shouldBe` (3, True, 2)