module Erebos.TextFormat (
    FormattedText,
    plainText,

    renderPlainText,
    formattedTextLength,
) where

import Data.Text (Text)
import Data.Text qualified as T

import Erebos.TextFormat.Types


plainText :: Text -> FormattedText
plainText = PlainText


renderPlainText :: FormattedText -> Text
renderPlainText = \case
    PlainText text -> text
    ConcatenatedText ftexts -> mconcat $ map renderPlainText ftexts
    FormattedText _ ftext -> renderPlainText ftext

formattedTextLength :: FormattedText -> Int
formattedTextLength = \case
    PlainText text -> T.length text
    ConcatenatedText ftexts -> sum $ map formattedTextLength ftexts
    FormattedText _ ftext -> formattedTextLength ftext