module Imm.Core where
import Imm.Config
import Imm.Database
import Imm.Error
import Imm.Feed (ImmFeed, FeedParser(..))
import qualified Imm.Feed as Feed
import qualified Imm.HTTP as HTTP
import qualified Imm.Maildir as Maildir
import Imm.Mail (MailFormatter(..))
import qualified Imm.Mail as Mail
import Imm.OPML as OPML
import Imm.Util
import Control.Monad hiding(forM_, mapM_)
import Control.Monad.Error hiding(forM_, mapM_)
import Data.Foldable
import Data.Time as T
import Prelude hiding(log, mapM_, sum)
import System.Log.Logger
import Text.Feed.Query as F
import Text.Feed.Types as F
type FeedConfig = (Config -> Config, FeedID)
type FeedList = [FeedConfig]
check :: (MonadBase IO m, FeedParser m, ConfigReader m, DatabaseReader m, HTTP.Decoder m, MonadError ImmError m) => FeedConfig -> m ()
check (f, feedID) = localConfig f . localError "imm.core" $ do
io . noticeM "imm.core" $ "Checking: " ++ show feedID
Feed.download feedID >>= Feed.check
importOPML :: (MonadBase IO m, MonadPlus m) => String -> m ()
importOPML = mapM_ addFeeds . OPML.read
list :: (MonadBase IO m, ConfigReader m, DatabaseReader m, MonadError ImmError m) => FeedConfig -> m ()
list (f, feedID) = localConfig f . localError "imm.core" $ (io . noticeM "imm.core" =<< Feed.showStatus feedID)
markAsRead :: (MonadBase IO m, ConfigReader m, DatabaseState m, MonadError ImmError m) => FeedConfig -> m ()
markAsRead (f, feedID) = localConfig f . localError "imm.core" $ Feed.markAsRead feedID
markAsUnread :: (MonadBase IO m, ConfigReader m, DatabaseState m, MonadError ImmError m) => FeedConfig -> m ()
markAsUnread (f, feedID) = localConfig f . localError "imm.core" $ Feed.markAsUnread feedID
update :: (MonadBase IO m, ConfigReader m, DatabaseState m, MonadError ImmError m, FeedParser m, MailFormatter m, HTTP.Decoder m) => FeedConfig -> m ()
update (f, feedID) = localConfig f . localError "imm.core" $ do
io . noticeM "imm.core" $ "Updating: " ++ show feedID
Feed.download feedID >>= updateFeed
updateFeed :: (Applicative m, ConfigReader m, DatabaseState m, FeedParser m, MailFormatter m, MonadBase IO m, MonadError ImmError m) => ImmFeed -> m ()
updateFeed (uri, feed) = do
Maildir.create =<< readConfig maildir
io . debugM "imm.core" $ Feed.describe feed
lastCheck <- getLastCheck uri
(results :: [Integer]) <- forM (feedItems feed) $ \item -> do
date <- Feed.getDate item
(date > lastCheck) ? (updateItem (item, feed) >> return 1) ?? return 0
io . noticeM "imm.core" $ "==> " ++ show (sum results) ++ " new item(s)"
Feed.markAsRead uri
updateItem :: (Applicative m, ConfigReader m, FeedParser m, MailFormatter m, MonadBase IO m, MonadError ImmError m) => (Item, Feed) -> m ()
updateItem (item, feed) = do
timeZone <- io getCurrentTimeZone
dir <- readConfig maildir
io . debugM "imm.core" $ "Adding following item to maildir [" ++ dir ++ "]:\n" ++ Feed.describeItem item
Maildir.add dir =<< Mail.build timeZone (item, feed)