module Potato.Flow.OwlWorkspaceSpec (
  spec
) where


import           Relude

import           Test.Hspec

import           Data.Maybe                        (fromJust)
import qualified Data.Sequence                     as Seq
import           Potato.Flow.Deprecated.State
import           Potato.Flow.Deprecated.TestStates
import           Potato.Flow.Owl
import           Potato.Flow.OwlItem
import           Potato.Flow.OwlState
import           Potato.Flow.OwlWorkspace

verifyOwlAt :: OwlPFWorkspace -> OwlSpot -> (SuperOwl -> Bool) -> Bool
verifyOwlAt ws ospot f = fromMaybe False $ do
  let
    ot = _owlPFState_owlTree . _owlPFWorkspace_owlPFState $ ws
  sowl <- owlTree_findSuperOwlAtOwlSpot ot ospot
  Just $ f sowl

pred_nameIs :: Text -> SuperOwl -> Bool
pred_nameIs n sowl = hasOwlItem_name sowl == n

undoAndVerify :: OwlPFWorkspace -> OwlPFState -> Bool
undoAndVerify ws prev = r where
  undows = updateOwlPFWorkspace WSEUndo ws
  newstate = _owlPFWorkspace_owlPFState undows
  r =
    owlTree_equivalent (_owlPFState_owlTree prev) (_owlPFState_owlTree newstate)
    && (_owlPFState_canvas prev) == (_owlPFState_canvas newstate)


spec :: Spec
spec = do
  describe "OwlWorkspace" $ do
    let
      owlTree0 = owlTree_fromOldState (_pFState_directory pfstate_basic2) (_pFState_layers pfstate_basic2)
      someState0 = OwlPFState owlTree0 someSCanvas
      someWorkspace0 = loadOwlPFStateIntoWorkspace someState0 emptyWorkspace

      spot1 = OwlSpot (-1) Nothing
      spot2 = OwlSpot 7 (Just 9)

      owlItem1 = OwlItem (OwlInfo "💩") OwlSubItemNone

    describe "updateOwlPFWorkspace" $ do
      it "WSEAddElt" $ do
        let
          wse1 = WSEAddElt (False, spot1, owlItem1)
          newws1 = updateOwlPFWorkspace wse1 someWorkspace0
        verifyOwlAt newws1 spot1 (pred_nameIs (hasOwlItem_name owlItem1)) `shouldBe` True
        undoAndVerify newws1 (_owlPFWorkspace_owlPFState someWorkspace0) `shouldBe` True
        let
          wse2 = WSEAddElt (False, spot2, owlItem1)
          newws2 = updateOwlPFWorkspace wse2 someWorkspace0
        --putTextLn $ debugPrintOwlPFState (_owlPFWorkspace_owlPFState newws2)
        verifyOwlAt newws2 spot2 (pred_nameIs (hasOwlItem_name owlItem1)) `shouldBe` True
        undoAndVerify newws2 (_owlPFWorkspace_owlPFState someWorkspace0) `shouldBe` True
      it "WSEAddFolder" $ do
        let
          folderName = "🥕🥕🥕"
          wse1 = WSEAddFolder (spot2, folderName)
          newws1 = updateOwlPFWorkspace wse1 someWorkspace0
          ot1 = _owlPFState_owlTree $ _owlPFWorkspace_owlPFState newws1
        --putTextLn $ debugPrintOwlPFState (_owlPFWorkspace_owlPFState newws1)
        verifyOwlAt newws1 spot2 (pred_nameIs folderName) `shouldBe` True
        undoAndVerify newws1 (_owlPFWorkspace_owlPFState someWorkspace0) `shouldBe` True
        -- create a child in the folder we just created and verify it got added correctly
        let
          sowl = fromJust $ owlTree_findSuperOwlAtOwlSpot ot1 spot2
          childSpot = OwlSpot (_superOwl_id sowl) Nothing
          wse2 = WSEAddElt (False, childSpot, owlItem1)
          newws2 = updateOwlPFWorkspace wse2 newws1
        verifyOwlAt newws2 childSpot (pred_nameIs (hasOwlItem_name owlItem1)) `shouldBe` True
        undoAndVerify newws2 (_owlPFWorkspace_owlPFState newws1) `shouldBe` True
      it "WSERemoveElt" $ do
        let
          --remove b1
          wse1 = WSERemoveElt (OwlParliament $ Seq.fromList [2])
          newws1 = updateOwlPFWorkspace wse1 someWorkspace0
        --putTextLn $ debugPrintOwlPFState (_owlPFWorkspace_owlPFState newws1)
        -- b2 should now be where b1 was
        verifyOwlAt newws1 (OwlSpot 1 Nothing) (pred_nameIs ("b2")) `shouldBe` True
        undoAndVerify newws1 (_owlPFWorkspace_owlPFState someWorkspace0) `shouldBe` True
      it "WSEMoveElt" $ do
        let
          -- move b2 to b1
          b1spot = owlTree_rEltId_toOwlSpot owlTree0 2
          wse1 = WSEMoveElt (b1spot, (OwlParliament $ Seq.fromList [3]))
          newws1 = updateOwlPFWorkspace wse1 someWorkspace0
        verifyOwlAt newws1 b1spot (pred_nameIs "b2") `shouldBe` True
        undoAndVerify newws1 (_owlPFWorkspace_owlPFState someWorkspace0) `shouldBe` True
        {-
      it "WSEResizeCanvas" $ do
        1 `shouldBe` 1
      it "WSEUndo" $ do
        1 `shouldBe` 1
      it "WSERedo" $ do
        1 `shouldBe` 1
      it "WSELoad" $ do
        1 `shouldBe` 1
        -}