{-# LANGUAGE FlexibleInstances     #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE NoImplicitPrelude     #-}
{-# LANGUAGE RecordWildCards       #-}
{-# LANGUAGE StrictData            #-}
{-# LANGUAGE TemplateHaskell       #-}

module Headroom.Command.InitSpec
  ( spec
  )
where

import           Headroom.Command.Init
import           Headroom.Command.Types         ( CommandInitOptions(..) )
import           Headroom.Configuration.Types   ( LicenseType(..) )
import           Headroom.Data.Has              ( Has(..) )
import           Headroom.Data.Lens             ( suffixLenses
                                                , suffixLensesFor
                                                )
import           Headroom.FileSystem            ( FileSystem(..) )
import           Headroom.FileType.Types        ( FileType(..) )
import           RIO
import           RIO.FilePath                   ( (</>) )
import qualified RIO.List                      as L
import           Test.Hspec


data TestEnv = TestEnv
  { envLogFunc     :: LogFunc
  , envFileSystem  :: FileSystem (RIO TestEnv)
  , envInitOptions :: CommandInitOptions
  , envPaths       :: Paths
  }

suffixLenses ''TestEnv
suffixLensesFor ["fsDoesFileExist"] ''FileSystem
suffixLensesFor ["pConfigFile"] ''Paths

instance HasLogFunc TestEnv where
  logFuncL = envLogFuncL

instance Has CommandInitOptions TestEnv where
  hasLens = envInitOptionsL

instance Has (FileSystem (RIO TestEnv)) TestEnv where
  hasLens = envFileSystemL

instance Has Paths TestEnv where
  hasLens = envPathsL


spec :: Spec
spec = do

  describe "doesAppConfigExist" $ do
    it "checks that configuration file exists in selected directory" $ do
      let env' = env & envFileSystemL . fsDoesFileExistL .~ check
          check path = pure $ env' ^. envPathsL . pConfigFileL == path
      runRIO env' doesAppConfigExist `shouldReturn` True


  describe "findSupportedFileTypes" $ do
    it "recursively finds all known file types present in given path" $ do
      L.sort <$> runRIO env findSupportedFileTypes `shouldReturn` [HTML]


env :: TestEnv
env = TestEnv { .. }
 where
  envLogFunc     = mkLogFunc (\_ _ _ _ -> pure ())
  envInitOptions = CommandInitOptions
    { cioSourcePaths = ["test-data" </> "test-traverse"]
    , cioLicenseType = BSD3
    }
  envPaths = Paths { pConfigFile   = "test-data" </> "configs" </> "full.yaml"
                   , pTemplatesDir = "headroom-templates"
                   }
  envFileSystem = FileSystem { fsCreateDirectory     = undefined
                             , fsDoesFileExist       = undefined
                             , fsFindFiles           = undefined
                             , fsFindFilesByExts     = undefined
                             , fsFindFilesByTypes    = undefined
                             , fsGetCurrentDirectory = undefined
                             , fsListFiles           = undefined
                             , fsLoadFile            = undefined
                             }