module Interpreter.Lib.String where

import qualified Data.ByteString as BS
import Data.Coerce
import Data.Text as T
import Data.Text.Encoding
import Data.Vector as V

import Interpreter.Common

builtInDecodeUTF8Bytes :: BuiltInFnWithDoc '[ '("bytes", BS.ByteString)]
builtInDecodeUTF8Bytes ((coerce -> b) :> EmptyArgs) = pure $ Just $ StringValue $ decodeUtf8 b

builtInEncodeUTF8Bytes :: BuiltInFnWithDoc '[ '("string", Text)]
builtInEncodeUTF8Bytes ((coerce -> b) :> EmptyArgs) = pure $ Just $ BytesValue $ encodeUtf8 b

builtInConcat :: BuiltInFnWithDoc '[ '("string1", Text), '("string2", Text)]
builtInConcat ((coerce -> b) :> (coerce -> d) :> EmptyArgs) = pure $ Just $ StringValue $ T.concat [b, d]

builtInJoin :: BuiltInFnWithDoc '[ '("joiner", Text), '("parts", [Text])]
builtInJoin ((coerce -> b) :> (coerce -> d) :> EmptyArgs) =
  pure $ Just $ StringValue $ T.intercalate b d

builtInSplit :: BuiltInFnWithDoc '[ '("divider", Text), '("text", Text)]
builtInSplit ((coerce -> b) :> (coerce -> d) :> EmptyArgs) =
  pure $ Just $ ArrayValue $ V.fromList $ StringValue <$> T.splitOn b d

builtInTrim :: BuiltInFnWithDoc '[ '("text", Text)]
builtInTrim ((coerce -> d) :> EmptyArgs) =
  pure $ Just $ StringValue $ T.strip d

builtInToLower :: BuiltInFnWithDoc '[ '("text", Text)]
builtInToLower ((coerce -> d) :> EmptyArgs) =
  pure $ Just $ StringValue $ T.toLower d

builtInToUpper :: BuiltInFnWithDoc '[ '("text", Text)]
builtInToUpper ((coerce -> d) :> EmptyArgs) =
  pure $ Just $ StringValue $ T.toUpper d

builtInReplace :: BuiltInFnWithDoc '[ '("needle", Text), '("replacement", Text), '("haystack", Text) ]
builtInReplace ((coerce -> needle) :> (coerce -> replacement) :> (coerce -> haystack) :> EmptyArgs) =
  pure $ Just $ StringValue $ T.replace needle replacement haystack

builtInToString :: BuiltInFnWithDoc '[ '("value", Value)]
builtInToString ((coerce -> b) :> EmptyArgs) =
  pure $ Just $ StringValue $ toStringVal b

builtInAmountFormat :: BuiltInFnWithDoc '[ '("separator", Text), '("positions", [Int]), '("value", Value)]
builtInAmountFormat ((coerce -> (sep :: Text)) :> (coerce -> (positions :: [Int])) :> (coerce -> (v :: Value)) :> EmptyArgs) =
  pure $ Just $ StringValue $ amountFormat sep positions (toStringVal v)