module Engine.Window.MouseButton
  ( Callback
  , callback

  , GLFW.MouseButton(..)
  , GLFW.MouseButtonState(..)
  , GLFW.ModifierKeys(..)

  , mkCallback

  , mouseButtonState
  , whenPressed
  , whenReleased

  , Collection(..)
  , collectionGlfw
  , atGlfw
  ) where

import RIO

import Graphics.UI.GLFW qualified as GLFW
import RIO.App (appEnv)
import UnliftIO.Resource (ReleaseKey)
import UnliftIO.Resource qualified as Resource
import Resource.Collection (Generic1, Generically1(..))

import Engine.Types (GlobalHandles(..), StageRIO)

type Callback st = (GLFW.ModifierKeys, GLFW.MouseButtonState, GLFW.MouseButton) -> StageRIO st ()

callback :: Callback st -> StageRIO st ReleaseKey
callback :: forall st. Callback st -> StageRIO st ReleaseKey
callback Callback st
handler = do
  Window
window <- (App GlobalHandles st -> Window)
-> RIO (App GlobalHandles st) Window
forall r (m :: * -> *) a. MonadReader r m => (r -> a) -> m a
asks ((App GlobalHandles st -> Window)
 -> RIO (App GlobalHandles st) Window)
-> (App GlobalHandles st -> Window)
-> RIO (App GlobalHandles st) Window
forall a b. (a -> b) -> a -> b
$ GlobalHandles -> Window
ghWindow (GlobalHandles -> Window)
-> (App GlobalHandles st -> GlobalHandles)
-> App GlobalHandles st
-> Window
forall b c a. (b -> c) -> (a -> b) -> a -> c
. App GlobalHandles st -> GlobalHandles
forall env st. App env st -> env
appEnv
  (UnliftIO (RIO (App GlobalHandles st)) -> IO ()) -> StageRIO st ()
forall (m :: * -> *) a.
MonadUnliftIO m =>
(UnliftIO m -> IO a) -> m a
withUnliftIO \UnliftIO (RIO (App GlobalHandles st))
ul ->
    Window -> Maybe MouseButtonCallback -> IO ()
GLFW.setMouseButtonCallback Window
window (Maybe MouseButtonCallback -> IO ())
-> (MouseButtonCallback -> Maybe MouseButtonCallback)
-> MouseButtonCallback
-> IO ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. MouseButtonCallback -> Maybe MouseButtonCallback
forall a. a -> Maybe a
Just (MouseButtonCallback -> IO ()) -> MouseButtonCallback -> IO ()
forall a b. (a -> b) -> a -> b
$ UnliftIO (RIO (App GlobalHandles st))
-> Callback st -> MouseButtonCallback
forall st.
UnliftIO (StageRIO st) -> Callback st -> MouseButtonCallback
mkCallback UnliftIO (RIO (App GlobalHandles st))
ul Callback st
handler
  IO () -> StageRIO st ReleaseKey
forall (m :: * -> *). MonadResource m => IO () -> m ReleaseKey
Resource.register (IO () -> StageRIO st ReleaseKey)
-> IO () -> StageRIO st ReleaseKey
forall a b. (a -> b) -> a -> b
$
    Window -> Maybe MouseButtonCallback -> IO ()
GLFW.setMouseButtonCallback Window
window Maybe MouseButtonCallback
forall a. Maybe a
Nothing

mkCallback :: UnliftIO (StageRIO st) -> Callback st -> GLFW.MouseButtonCallback
mkCallback :: forall st.
UnliftIO (StageRIO st) -> Callback st -> MouseButtonCallback
mkCallback (UnliftIO forall a. StageRIO st a -> IO a
ul) Callback st
action =
  \Window
_window MouseButton
button MouseButtonState
buttonState ModifierKeys
mods ->
    StageRIO st () -> IO ()
forall a. StageRIO st a -> IO a
ul (StageRIO st () -> IO ()) -> StageRIO st () -> IO ()
forall a b. (a -> b) -> a -> b
$ Callback st
action (ModifierKeys
mods, MouseButtonState
buttonState, MouseButton
button)

{-# INLINE mouseButtonState #-}
mouseButtonState :: a -> a -> GLFW.MouseButtonState -> a
mouseButtonState :: forall a. a -> a -> MouseButtonState -> a
mouseButtonState a
pressed a
released = \case
  MouseButtonState
GLFW.MouseButtonState'Pressed  -> a
pressed
  MouseButtonState
GLFW.MouseButtonState'Released -> a
released

{-# INLINE whenPressed #-}
whenPressed :: Applicative f => GLFW.MouseButtonState -> f () -> f ()
whenPressed :: forall (f :: * -> *).
Applicative f =>
MouseButtonState -> f () -> f ()
whenPressed MouseButtonState
mbs f ()
action = f () -> f () -> MouseButtonState -> f ()
forall a. a -> a -> MouseButtonState -> a
mouseButtonState f ()
action (() -> f ()
forall (f :: * -> *) a. Applicative f => a -> f a
pure ()) MouseButtonState
mbs

{-# INLINE whenReleased #-}
whenReleased :: Applicative f => GLFW.MouseButtonState -> f () -> f ()
whenReleased :: forall (f :: * -> *).
Applicative f =>
MouseButtonState -> f () -> f ()
whenReleased MouseButtonState
mbs f ()
action = f () -> f () -> MouseButtonState -> f ()
forall a. a -> a -> MouseButtonState -> a
mouseButtonState (() -> f ()
forall (f :: * -> *) a. Applicative f => a -> f a
pure ()) f ()
action MouseButtonState
mbs

data Collection a = Collection
  { forall a. Collection a -> a
mb1, forall a. Collection a -> a
mb2, forall a. Collection a -> a
mb3, forall a. Collection a -> a
mb4, forall a. Collection a -> a
mb5, forall a. Collection a -> a
mb6, forall a. Collection a -> a
mb7, forall a. Collection a -> a
mb8 :: a }
  deriving (Collection a -> Collection a -> Bool
(Collection a -> Collection a -> Bool)
-> (Collection a -> Collection a -> Bool) -> Eq (Collection a)
forall a. Eq a => Collection a -> Collection a -> Bool
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min :: Collection a -> Collection a -> Collection a
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product :: forall a. Num a => Collection a -> a
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sum :: forall a. Num a => Collection a -> a
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length :: forall a. Collection a -> Int
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foldl1 :: forall a. (a -> a -> a) -> Collection a -> a
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foldr' :: forall a b. (a -> b -> b) -> b -> Collection a -> b
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foldr :: forall a b. (a -> b -> b) -> b -> Collection a -> b
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foldMap' :: forall m a. Monoid m => (a -> m) -> Collection a -> m
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pure :: forall a. a -> Collection a
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Applicative via Generically1 Collection

collectionGlfw :: Collection GLFW.MouseButton
collectionGlfw :: Collection MouseButton
collectionGlfw = MouseButton
-> MouseButton
-> MouseButton
-> MouseButton
-> MouseButton
-> MouseButton
-> MouseButton
-> MouseButton
-> Collection MouseButton
forall a. a -> a -> a -> a -> a -> a -> a -> a -> Collection a
Collection
  MouseButton
GLFW.MouseButton'1
  MouseButton
GLFW.MouseButton'2
  MouseButton
GLFW.MouseButton'3
  MouseButton
GLFW.MouseButton'4
  MouseButton
GLFW.MouseButton'5
  MouseButton
GLFW.MouseButton'6
  MouseButton
GLFW.MouseButton'7
  MouseButton
GLFW.MouseButton'8

{-# INLINE atGlfw #-}
atGlfw :: Collection a -> GLFW.MouseButton -> a
atGlfw :: forall a. Collection a -> MouseButton -> a
atGlfw Collection{a
mb8 :: a
mb7 :: a
mb6 :: a
mb5 :: a
mb4 :: a
mb3 :: a
mb2 :: a
mb1 :: a
$sel:mb8:Collection :: forall a. Collection a -> a
$sel:mb7:Collection :: forall a. Collection a -> a
$sel:mb6:Collection :: forall a. Collection a -> a
$sel:mb5:Collection :: forall a. Collection a -> a
$sel:mb4:Collection :: forall a. Collection a -> a
$sel:mb3:Collection :: forall a. Collection a -> a
$sel:mb2:Collection :: forall a. Collection a -> a
$sel:mb1:Collection :: forall a. Collection a -> a
..} = \case
  MouseButton
GLFW.MouseButton'1 -> a
mb1
  MouseButton
GLFW.MouseButton'2 -> a
mb2
  MouseButton
GLFW.MouseButton'3 -> a
mb3
  MouseButton
GLFW.MouseButton'4 -> a
mb4
  MouseButton
GLFW.MouseButton'5 -> a
mb5
  MouseButton
GLFW.MouseButton'6 -> a
mb6
  MouseButton
GLFW.MouseButton'7 -> a
mb7
  MouseButton
GLFW.MouseButton'8 -> a
mb8