content: {- hpodder component
  Copyright (C) 2006-2007 John Goerzen <jgoerzen@complete.org>
  
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
  
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  -}
  
  module Commands.EnableDisable(cmd_enable, cmd_disable, cmd_worker) where
  import Utils
  import System.Log.Logger
  import DB
  import Download
  import FeedParser
  import Types
  import Text.Printf
  import Config
  import Database.HDBC
  import Control.Exception(evaluate)
  import Control.Monad
  import Utils
  import Data.String
  import System.IO
  
  i = infoM "enable/disable"
  w = warningM "enable/disable"
  d = debugM "enable/disable"
  
  cmd_enable = simpleCmd "enable" 
               "Enable a podcast that was previously disabled" helptext 
               [] (cmd_worker "enable" PCEnabled)
  
  cmd_disable = simpleCmd "disable"
                "Stop updating and downloading given podcasts" helptext_disable
                [] (cmd_worker "disable" PCUserDisabled)
  
  cmd_worker cmd _ gi ([], []) =
      fail $ cmd ++ " requires a podcast ID to remove; please see hpodder "
             ++ cmd ++ " --help"
  
  cmd_worker cmd newstat gi ([], casts) = lock $
      do podcastlist <- getSelectedPodcasts (gdbh gi) casts
         evaluate (length podcastlist)
         d $ "Setting " ++ (show . length $ podcastlist) ++ " podcasts to " ++
           show (newstat)
         mapM_ (\x -> updatePodcast (gdbh gi) 
                      (x {pcenabled = newstat,
                          failedattempts = if newstat == PCEnabled then 0 
                                              else failedattempts x})) 
               podcastlist
         commit (gdbh gi)
             
  
  cmd_worker cmd _ _ _ =
      fail $ "Invalid arguments to enable; please see hpodder " ++ cmd ++ " --help"
  
  helptext = "Usage: hpodder enable castid [castid...]\n\n" ++ 
   "\nEnables selected podcasts for downloading and updating\n"
  
  helptext_disable = "Usage: hpodder disable castid [castid...]\n\n" ++
   "\nDisables selected podcasts -- they will no longer be downloaded or\n\
   \updated until re-enabled.\n"
  