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{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
-- | basic types for the linter to eat and produce
-- The dark magic making thse useful is in LintWriter
module Types where
import Control.Monad.Trans.Maybe ()
import Data.Aeson (ToJSON (toJSON), (.=))
import Data.Text (Text)
import GHC.Generics (Generic)
import qualified Data.Aeson as A
import Paths (RelPath)
import Util (PrettyPrint (..), showText)
-- | Levels of errors and warnings, collectively called
-- "Hints" until I can think of some better name
data Level = Warning | Suggestion | Info | Forbidden | Error | Fatal
deriving (Show, Generic, ToJSON)
-- | a hint comes with an explanation (and a level), or is a dependency
-- (in which case it'll be otherwise treated as an info hint)
data Lint = Depends Dep | Lint Hint
-- | TODO: add a reasonable representation of possible urls
data Dep = Local RelPath | Link Text | MapLink Text | LocalMap RelPath
deriving (Generic)
data Hint = Hint
{ hintLevel :: Level
, hintMsg :: Text
} deriving (Generic, ToJSON)
-- | shorter constructor (called hint because (a) older name and
-- (b) lint also exists and is monadic)
hint :: Level -> Text -> Lint
hint level msg = Lint Hint { hintLevel = level, hintMsg = msg }
-- | dependencies just have level Info
lintLevel :: Lint -> Level
lintLevel (Lint h) = hintLevel h
lintLevel (Depends _) = Info
instance PrettyPrint Lint where
prettyprint (Lint Hint { hintMsg, hintLevel } ) =
showText hintLevel <> ": " <> hintMsg
prettyprint (Depends dep) =
"Info: found dependency: " <> prettyprint dep
instance ToJSON Lint where
toJSON (Lint l) = toJSON l
toJSON (Depends dep) = A.object
[ "hintMsg" .= prettyprint dep
, "hintLevel" .= A.String "Dependency Info" ]
instance ToJSON Dep where
toJSON = \case
Local text -> json "local" $ prettyprint text
Link text -> json "link" text
MapLink text -> json "mapservice" text
LocalMap text -> json "map" $ prettyprint text
where
json :: A.Value -> Text -> A.Value
json kind text = A.object [ "kind" .= kind, "dep" .= text ]
instance PrettyPrint Dep where
prettyprint = \case
Local dep -> "[local dep: " <> prettyprint dep <> "]"
Link dep -> "[link dep: " <> dep <> "]"
MapLink dep -> "[map service dep: " <> dep <> "]"
LocalMap dep -> "[local map dep: " <> prettyprint dep <> "]"
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