added brick scaffolding

src/Hamming/App.hs

@@ -0,0 +1,48 @@
+{-|
+
+Module      : Hamming.App
+Description : Utilities for working with Hamming codes
+Copyright   : (C) Jonathan Lamothe
+License     : AGPL-3.0-or-later
+Maintainer  : jonathan@jlamothe.net
+Stability   : experimental
+Portability : POSIX
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public
+License along with this program.  If not, see
+<https://www.gnu.org/licenses/>.
+
+|-}
+
+module Hamming.App (mainApp, initialState) where
+
+import Brick.AttrMap (forceAttrMap)
+import Brick.Main (App (..), neverShowCursor)
+import Brick.Util (style)
+import Control.Monad.State.Class (gets)
+
+import Hamming.App.Types
+
+mainApp :: App AppState () ()
+mainApp = App
+  { appDraw         = \s -> drawFunc (router s) s
+  , appChooseCursor = neverShowCursor
+  , appHandleEvent  = \e -> gets router >>= flip eventHandler e
+  , appStartEvent   = return ()
+  , appAttrMap      = const $ forceAttrMap $ style 0
+  }
+
+router :: AppState -> Route
+router = undefined
+
+--jl

src/Hamming/App/Types.hs

@@ -0,0 +1,48 @@
+{-|
+
+Module      : Hamming.App.Types
+Description : Utilities for working with Hamming codes
+Copyright   : (C) Jonathan Lamothe
+License     : AGPL-3.0-or-later
+Maintainer  : jonathan@jlamothe.net
+Stability   : experimental
+Portability : POSIX
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public
+License along with this program.  If not, see
+<https://www.gnu.org/licenses/>.
+
+|-}
+
+module Hamming.App.Types (AppState (..), Route (..), initialState) where
+
+import Brick.Types (BrickEvent, EventM, Widget)
+import Data.Word (Word16)
+
+-- | The main state of the application
+data AppState = AppState
+  { hammingCode :: Word16
+  }
+
+-- | Returns appropriate draw function and event handler for the
+-- current application state
+data Route = Route
+  { drawFunc     :: AppState -> [Widget ()]
+  , eventHandler :: BrickEvent () () -> EventM () AppState ()
+  }
+
+-- | Initial application state
+initialState :: AppState
+initialState = AppState 0
+
+--jl