{-# LANGUAGE OverloadedStrings #-}
module HieBios (tests) where

import Control.Lens ((^.))
import Control.Monad.IO.Class
import qualified Data.Text as T
import Language.Haskell.LSP.Test
import Language.Haskell.LSP.Types
import qualified Language.Haskell.LSP.Types.Lens as L
import System.FilePath ((</>))
import Test.Hls.Util
import Test.Tasty
import Test.Tasty.HUnit

tests :: TestTree
tests = testGroup "hie-bios" [
    testCase "loads modules inside main-is" $ do
        writeFile (hieBiosErrorPath </> "hie.yaml") ""
        runSession hlsCommand fullCaps "test/testdata/hieBiosMainIs" $ do
            doc <- openDoc "Main.hs" "haskell"
            Just mainHoverText <- getHover doc (Position 3 1)
            let (HoverContents (MarkupContent _ x)) = mainHoverText ^. L.contents
            liftIO $ "main :: IO ()" `T.isInfixOf` x
                     @? "found hover text for main"

    , testCase "reports errors in hie.yaml" $ do
        writeFile (hieBiosErrorPath </> "hie.yaml") ""
        runSession hlsCommand fullCaps hieBiosErrorPath $ do
            _ <- openDoc "Foo.hs" "haskell"
            (diag:_) <- waitForDiagnostics
            liftIO $ "Expected a cradle: key containing the preferences" `T.isInfixOf` (diag ^. L.message)
                     @? "Error reported"
    ]
    where
        hieBiosErrorPath = "test/testdata/hieBiosError"