module Ribosome.Test.File where

import qualified Data.ByteString as ByteString (readFile)
import System.Directory (canonicalizePath, createDirectoryIfMissing, removePathForcibly)
import System.FilePath ((</>))

testDir :: Text -> IO FilePath
testDir = canonicalizePath . toString

-- raises exception if cwd is not the package root so we don't damage anything
tempDirIO :: Text -> FilePath -> IO FilePath
tempDirIO prefix path = do
  base <- testDir prefix
  let dir = base </> "temp"
  removePathForcibly dir
  createDirectoryIfMissing False dir
  let absPath = dir </> path
  createDirectoryIfMissing True absPath
  return absPath

tempDir :: MonadIO m => Text -> FilePath -> m FilePath
tempDir prefix path =
  liftIO $ tempDirIO prefix path

fixture ::
  MonadIO m =>
  Text ->
  FilePath ->
  m FilePath
fixture prefix path = do
  base <- liftIO $ testDir prefix
  return $ base </> "fixtures" </> path

fixtureContent ::
  MonadIO m =>
  Text ->
  FilePath ->
  m Text
fixtureContent prefix subPath = do
  path <- fixture prefix subPath
  decodeUtf8 <$> liftIO (ByteString.readFile path)