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module Role.Downloader where
import Types
import Log
import CmdLine
import SessionID
import Control.Concurrent.STM
import Control.Concurrent.STM.TMChan
import Role.Developer (run', processSessionStart, getUserMessage, Output(..))
run :: DownloadOpts -> IO ()
run = run' downloader . downloadUrl
downloader :: TMChan (Message Entered) -> TMChan (Message Seen) -> SessionID -> IO ()
downloader _ichan ochan sid = do
let logfile = sessionLogFile "." sid
putStrLn $ "Starting download to " ++ logfile
putStrLn "(Will keep downloading until the debug-me session is done.)"
withLogger logfile $ \logger -> do
(st, _startoutput) <- processSessionStart ochan logger
go logger st
where
go logger st = do
v <- atomically $ getUserMessage ochan st
case v of
Nothing -> return ()
Just (o, msg) -> do
_ <- logger $ User msg
case o of
ProtocolError e -> error ("Protocol error: " ++ e)
_ -> go logger st
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