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{-# LANGUAGE OverloadedStrings #-}
import qualified Data.Text as T
import Control.Monad.IO.Class
import Control.Monad.Logger
import System.Directory
import Control.Monad.Extra
import F2Md.Types
import F2Md.Import
import F2Md.Export
import F2Md.Config
import System.FilePath
-- TODO: update db on interruption with the latest date
processFeed :: FilePath -> Maybe FilePath -> FeedUserdata -> LoggingT IO ()
processFeed root dbPath feed = do
logInfoN $ "Fetching " <> (fuUrl feed) <> "..."
msgs <- liftIO $ toMessagesFromUrl (fuUrl feed) (fuLastUpdated feed)
logInfoN $ "Writing " <> (T.pack $ show $ length msgs) <> " messages..."
liftIO $ mapM_ (writeMessage root) msgs
whenJust dbPath $ \dbPath' -> liftIO $ updateLastUpdated' dbPath' feed msgs
main :: IO ()
main = do
(feeds, maildir, dbPath) <- getUserdata "./.f2m.json"
whenJust maildir $ \root -> do
mapM_ (createDirectoryIfMissing True)
[root </> "new", root </> "cur", root </> "tmp"]
mapM_ (runStdoutLoggingT . processFeed root dbPath) feeds
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