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{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
{-# HLINT ignore "Use for_" #-}
{-# HLINT ignore "Use <=<" #-}
module Daffm.Action.Core where
import Brick (suspendAndResume')
import qualified Brick.Widgets.List as L
import Control.Monad (void)
import Control.Monad.State (MonadIO (liftIO), MonadState, get, gets, modify, put)
import Daffm.State
import Daffm.Types (AppEvent, AppState (..), FileInfo (..), FilePathText, FileType (..))
import qualified Data.Map as Map
import Data.Maybe (fromMaybe)
import qualified Data.Set as Set
import qualified Data.Text as Text
import qualified Data.Vector as Vec
import System.Directory (getHomeDirectory)
import System.Environment (getEnvironment)
import qualified System.Exit as Proc
import System.FilePath (takeDirectory)
import qualified System.Process as Proc
modifyM :: (MonadState s m) => (s -> m s) -> m ()
modifyM f = get >>= f >>= put
loadDir :: FilePathText -> AppEvent ()
loadDir dir = do
modifyM (liftIO . (>>= filterInvalidSelections) . loadDirToState dir)
applySearch -- Apply search after loading dir to update match indexes
reloadDir :: AppEvent ()
reloadDir = gets stateCwd >>= loadDir
goBackToParentDir :: AppEvent ()
goBackToParentDir = do
parentDir <- gets (Text.pack . takeDirectory . Text.unpack . stateCwd)
loadDir parentDir
changeDir :: FilePathText -> AppEvent ()
changeDir = loadDir
goHome :: AppEvent ()
goHome = liftIO getHomeDirectory >>= changeDir . Text.pack
openSelectedFile :: AppEvent ()
openSelectedFile = do
currentFile >>= \case
Just (FileInfo {filePath, fileType = Directory}) -> loadDir filePath
Just (FileInfo {filePath, fileLinkType = Just Directory}) -> loadDir filePath
Just _ -> do
opener <- gets (fromMaybe "echo '%F' | xargs -i xdg-open {}" . stateOpenerScript)
cmdSubstitutions opener >>= suspendAndRunShellCommand False
Nothing -> pure ()
cmdSubstitutions :: Text.Text -> AppEvent Text.Text
cmdSubstitutions cmd = gets (`substitute` cmd)
where
escape = (\s -> "'" <> s <> "'") . Text.replace "'" "'\\''"
substitute (AppState {stateFiles, stateCwd, stateFileSelections}) =
Text.replace "%" (escape cursorFile)
. Text.replace "%d" (escape stateCwd)
. Text.replace "%s" (Text.unwords $ map escape selections)
. Text.replace "%S" (Text.dropWhileEnd (== '\n') $ Text.unlines selections)
. Text.replace "%f" (Text.unwords $ map escape selectionsOrCursor)
. Text.replace "%F" (Text.dropWhileEnd (== '\n') $ Text.unlines selectionsOrCursor)
where
cursorFile = maybe "" (filePath . snd) . L.listSelectedElement $ stateFiles
selections = Set.elems stateFileSelections
selectionsOrCursor = if Set.null stateFileSelections then [cursorFile] else selections
-- Suspend tui and run shell command
-- When waitForKey is true, it will prompt for a key press on success
-- When exit code is non-zero, it will print it and prompt for key press regardless of waitForKey
suspendAndRunShellCommand :: Bool -> Text.Text -> AppEvent ()
suspendAndRunShellCommand waitForKey cmd = do
suspendAndResume' $ do
shellCommand (Text.unpack cmd) Map.empty >>= \case
Proc.ExitFailure code -> do
putStrLn $ "Process exited with " <> show code
putStrLn "Press any key to continue" >> void getChar
_ | waitForKey -> putStrLn "Press any key to continue" >> void getChar
_ -> pure ()
shellCommand :: String -> Map.Map String String -> IO Proc.ExitCode
shellCommand cmd env = do
currentEnv <- getEnvironment
Proc.withCreateProcess
(Proc.shell cmd) {Proc.delegate_ctlc = True, Proc.env = Just $ currentEnv ++ Map.toList env}
$ \_ _ _ p -> Proc.waitForProcess p
currentFile :: AppEvent (Maybe FileInfo)
currentFile = gets (fmap snd . L.listSelectedElement . stateFiles)
toggleCurrentFileSelection :: AppEvent ()
toggleCurrentFileSelection = do
currentFile >>= \case
Just fileInfo -> modify . toggleFileSelection . filePath $ fileInfo
Nothing -> pure ()
moveCurrent 1
clearFileSelections :: AppEvent ()
clearFileSelections =
modify $ \st -> st {stateFileSelections = Set.empty}
moveCurrent :: Int -> AppEvent ()
moveCurrent count =
modify $ \st -> st {stateFiles = L.listMoveBy count $ stateFiles st}
setSearchTerm :: Text.Text -> AppEvent ()
setSearchTerm "" = modify $ \st -> st {stateSearchTerm = Nothing, stateSearchIndex = 0}
setSearchTerm term = modify $ \st -> st {stateSearchTerm = Just term, stateSearchIndex = 0}
applySearch :: AppEvent ()
applySearch = get >>= search
where
search :: AppState -> AppEvent ()
search (AppState {stateSearchTerm = Nothing}) =
modify $ \st -> st {stateSearchMatches = Vec.empty, stateSearchIndex = 0}
search (AppState {stateSearchTerm = Just term, stateFiles}) =
modify $
\st ->
st
{ stateSearchMatches = searchFiles stateFiles,
stateSearchIndex = wrapSearchIndex st $ stateSearchIndex st
}
where
isAMatch (FileInfo {fileName}) = Text.toLower term `Text.isInfixOf` Text.toLower fileName
searchFiles = Vec.map fst . Vec.filter (isAMatch . snd) . Vec.indexed . L.listElements
nextSearchMatch :: AppEvent ()
nextSearchMatch =
modify (\st -> st {stateFiles = forwardSearch st})
where
forwardSearch st@(AppState {stateSearchMatches, stateFiles, stateSearchIndex}) =
if Vec.null stateSearchMatches
then stateFiles
else L.listMoveTo (stateSearchMatches Vec.! wrapSearchIndex st stateSearchIndex) stateFiles
wrapSearchIndex :: AppState -> Int -> Int
wrapSearchIndex (AppState {stateSearchMatches}) nextIndex =
if
| nextIndex < 0 -> matchCount - 1
| nextIndex >= matchCount && matchCount /= 0 -> nextIndex `mod` matchCount
| otherwise -> nextIndex
where
matchCount = length stateSearchMatches
updateSearchIndex :: (Int -> Int) -> AppEvent ()
updateSearchIndex update =
modify $ \st -> st {stateSearchIndex = wrapSearchIndex st $ update $ stateSearchIndex st}
|
