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Diffstat (limited to 'users/glittershark/xanthous/src/Xanthous/App/Prompt.hs')
-rw-r--r-- | users/glittershark/xanthous/src/Xanthous/App/Prompt.hs | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/users/glittershark/xanthous/src/Xanthous/App/Prompt.hs b/users/glittershark/xanthous/src/Xanthous/App/Prompt.hs new file mode 100644 index 000000000000..9b5a3bf24fa7 --- /dev/null +++ b/users/glittershark/xanthous/src/Xanthous/App/Prompt.hs @@ -0,0 +1,161 @@ +{-# LANGUAGE UndecidableInstances #-} +-------------------------------------------------------------------------------- +module Xanthous.App.Prompt + ( handlePromptEvent + , clearPrompt + , prompt + , prompt_ + , confirm_ + , confirm + , menu + , menu_ + ) where +-------------------------------------------------------------------------------- +import Xanthous.Prelude +-------------------------------------------------------------------------------- +import Brick (BrickEvent(..), Next) +import Brick.Widgets.Edit (handleEditorEvent) +import Data.Aeson (ToJSON, object) +import Graphics.Vty.Input.Events (Event(EvKey), Key(..)) +import GHC.TypeLits (ErrorMessage(..)) +-------------------------------------------------------------------------------- +import Xanthous.App.Common +import Xanthous.Data (move) +import Xanthous.Command (directionFromChar) +import Xanthous.Data.App (ResourceName, AppEvent) +import Xanthous.Game.Prompt +import Xanthous.Game.State +import qualified Xanthous.Messages as Messages +-------------------------------------------------------------------------------- + +handlePromptEvent + :: Text -- ^ Prompt message + -> Prompt AppM + -> BrickEvent ResourceName AppEvent + -> AppM (Next GameState) + +handlePromptEvent _ (Prompt Cancellable _ _ _ _) (VtyEvent (EvKey KEsc [])) + = clearPrompt >> continue +handlePromptEvent _ pr (VtyEvent (EvKey KEnter [])) + = clearPrompt >> submitPrompt pr >> continue + +handlePromptEvent _ pr@(Prompt _ SConfirm _ _ _) (VtyEvent (EvKey (KChar 'y') [])) + = clearPrompt >> submitPrompt pr >> continue + +handlePromptEvent _ (Prompt _ SConfirm _ _ _) (VtyEvent (EvKey (KChar 'n') [])) + = clearPrompt >> continue + +handlePromptEvent + msg + (Prompt c SStringPrompt (StringPromptState edit) pri cb) + (VtyEvent ev) + = do + edit' <- lift $ handleEditorEvent ev edit + let prompt' = Prompt c SStringPrompt (StringPromptState edit') pri cb + promptState .= WaitingPrompt msg prompt' + continue + +handlePromptEvent _ (Prompt _ SDirectionPrompt _ _ cb) + (VtyEvent (EvKey (KChar (directionFromChar -> Just dir)) [])) + = clearPrompt >> cb (DirectionResult dir) >> continue +handlePromptEvent _ (Prompt _ SDirectionPrompt _ _ _) _ = continue + +handlePromptEvent _ (Prompt _ SMenu _ items' cb) (VtyEvent (EvKey (KChar chr) [])) + | Just (MenuOption _ res) <- items' ^. at chr + = clearPrompt >> cb (MenuResult res) >> continue + | otherwise + = continue + +handlePromptEvent + msg + (Prompt c SPointOnMap (PointOnMapPromptState pos) pri cb) + (VtyEvent (EvKey (KChar (directionFromChar -> Just dir)) [])) + = let pos' = move dir pos + prompt' = Prompt c SPointOnMap (PointOnMapPromptState pos') pri cb + in promptState .= WaitingPrompt msg prompt' + >> continue +handlePromptEvent _ (Prompt _ SPointOnMap _ _ _) _ = continue + +handlePromptEvent + _ + (Prompt Cancellable _ _ _ _) + (VtyEvent (EvKey (KChar 'q') [])) + = clearPrompt >> continue +handlePromptEvent _ _ _ = continue + +clearPrompt :: AppM () +clearPrompt = promptState .= NoPrompt + +class NotMenu (pt :: PromptType) +instance NotMenu 'StringPrompt +instance NotMenu 'Confirm +instance NotMenu 'DirectionPrompt +instance NotMenu 'PointOnMap +instance NotMenu 'Continue +instance TypeError ('Text "Cannot use `prompt` or `prompt_` for menu prompts" + ':$$: 'Text "Use `menu` or `menu_` instead") + => NotMenu ('Menu a) + +prompt + :: forall (pt :: PromptType) (params :: Type). + (ToJSON params, SingPromptType pt, NotMenu pt) + => [Text] -- ^ Message key + -> params -- ^ Message params + -> PromptCancellable + -> (PromptResult pt -> AppM ()) -- ^ Prompt promise handler + -> AppM () +prompt msgPath params cancellable cb = do + let pt = singPromptType @pt + msg <- Messages.message msgPath params + p <- case pt of + SPointOnMap -> do + charPos <- use characterPosition + pure $ mkPointOnMapPrompt cancellable charPos cb + SStringPrompt -> pure $ mkPrompt cancellable pt cb + SConfirm -> pure $ mkPrompt cancellable pt cb + SDirectionPrompt -> pure $ mkPrompt cancellable pt cb + SContinue -> pure $ mkPrompt cancellable pt cb + SMenu -> error "unreachable" + promptState .= WaitingPrompt msg p + +prompt_ + :: forall (pt :: PromptType). + (SingPromptType pt, NotMenu pt) + => [Text] -- ^ Message key + -> PromptCancellable + -> (PromptResult pt -> AppM ()) -- ^ Prompt promise handler + -> AppM () +prompt_ msg = prompt msg $ object [] + +confirm + :: ToJSON params + => [Text] -- ^ Message key + -> params + -> AppM () + -> AppM () +confirm msgPath params + = prompt @'Confirm msgPath params Cancellable . const + +confirm_ :: [Text] -> AppM () -> AppM () +confirm_ msgPath = confirm msgPath $ object [] + +menu :: forall (a :: Type) (params :: Type). + (ToJSON params) + => [Text] -- ^ Message key + -> params -- ^ Message params + -> PromptCancellable + -> Map Char (MenuOption a) -- ^ Menu items + -> (PromptResult ('Menu a) -> AppM ()) -- ^ Menu promise handler + -> AppM () +menu msgPath params cancellable items' cb = do + msg <- Messages.message msgPath params + let p = mkMenu cancellable items' cb + promptState .= WaitingPrompt msg p + +menu_ :: forall (a :: Type). + [Text] -- ^ Message key + -> PromptCancellable + -> Map Char (MenuOption a) -- ^ Menu items + -> (PromptResult ('Menu a) -> AppM ()) -- ^ Menu promise handler + -> AppM () +menu_ msgPath = menu msgPath $ object [] |