{-# LANGUAGE DeriveAnyClass #-}

module Hercules.API.Agent.Evaluate.EvaluateEvent.DerivationInfo where

import Control.Applicative
import Control.Lens
import qualified Data.Aeson as A
import Data.Aeson.Lens
import Hercules.API.Prelude

type OutputNameText = Text

type DerivationPathText = Text

-- | Derivation fields that are relevant to CI, notably excluding the details
-- that make it buildable and may be sensitive such as the builder script or
-- output hashes.
data DerivationInfo = DerivationInfo
  { derivationPath :: DerivationPathText,
    platform :: Text,
    requiredSystemFeatures :: [Text],
    inputDerivations :: Map DerivationPathText [OutputNameText],
    inputSources :: [DerivationPathText],
    outputs :: Map OutputNameText OutputInfo
  }
  deriving (Generic, Show, Eq, NFData, ToJSON)

instance FromJSON DerivationInfo where
  parseJSON = A.genericParseJSON A.defaultOptions . fixup
    where
      fixup :: A.Value -> A.Value
      fixup = _Object . at "requiredSystemFeatures" %~ (<|> Just (A.Array mempty))

data OutputInfo = OutputInfo
  { path :: Maybe Text,
    isFixed :: Bool
  }
  deriving (Generic, Show, Eq, NFData, ToJSON, FromJSON)