Refactor event module with actions

1 files changed, 45 insertions, 0 deletions

diff --git a/lib/Daffm/Action/Core.hs b/lib/Daffm/Action/Core.hs
new file mode 100644
index 0000000..48792c4
--- /dev/null
+++ b/lib/Daffm/Action/Core.hs
@@ -0,0 +1,45 @@
+{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
+
+{-# HLINT ignore "Use for_" #-}
+module Daffm.Action.Core where
+
+import Brick (suspendAndResume')
+import qualified Brick.Widgets.List as L
+import Control.Monad.State (MonadIO (liftIO), MonadState, get, gets, put)
+import Daffm.State (loadDirInAppState)
+import Daffm.Types (AppEvent, AppState (..), FileInfo (..), FileType (..))
+import Data.Vector ((!?))
+import System.FilePath (takeDirectory)
+import System.Process (callProcess)
+
+modifyM :: (MonadState s m) => (s -> m s) -> m ()
+modifyM f = get >>= f >>= put
+
+reloadDir :: AppEvent ()
+reloadDir = do
+  AppState {stateCwd, stateParentDir} <- get
+  modifyM (liftIO . loadDirInAppState stateCwd stateParentDir)
+
+goBackToParentDir :: AppEvent ()
+goBackToParentDir = do
+  dir <- gets stateParentDir
+  modifyM (liftIO . loadDirInAppState dir (takeDirectory dir))
+
+openSelectedFile :: AppEvent ()
+openSelectedFile = do
+  appState <- get
+  let indexM = L.listSelected $ stateFiles appState
+  let files = L.listElements $ stateFiles appState
+  case indexM >>= (files !?) of
+    Just file -> openFile appState file
+    Nothing -> pure ()
+  pure ()
+
+openFile :: AppState -> FileInfo -> AppEvent ()
+openFile appState (FileInfo {filePath, fileType = Directory}) = do
+  modifyM (liftIO . loadDirInAppState filePath (stateCwd appState))
+openFile _appState (FileInfo {filePath, fileType}) = do
+  suspendAndResume' $ do
+    putStrLn $ "Opening " <> show fileType <> ": " <> filePath
+    callProcess "nvim" [filePath]
+  pure ()