summaryrefslogtreecommitdiff
path: root/Hsbot/Irc/Plugin/Ping.hs
blob: 57418b3f6c781c27d52e5807e973a2ab3553d3e6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
module Hsbot.Irc.Plugin.Ping
    ( ircBotPluginPing
    ) where

import Control.Concurrent.Chan
import Control.Exception
import Control.Monad.State
import Prelude hiding (catch)

import Hsbot.Irc.Message
import Hsbot.Irc.Plugin.Utils

-- | The plugin's main entry point
ircBotPluginPing :: Chan IrcBotMsg -> Chan IrcBotMsg -> IO ()
ircBotPluginPing myChan masterChan = do
    let plugin = IrcPluginState { ircPluginName       = "Ping"
                                , ircPluginChan       = myChan
                                , ircPluginMasterChan = masterChan }
    _ <- (execStateT run plugin) `catch` (\(_ :: AsyncException) -> return plugin)
    return ()

-- | The IrcPlugin monad main function
run :: IrcPlugin ()
run = forever $ do
    msg <- readMsg
    eval msg
  where
    eval :: IrcBotMsg -> IrcPlugin ()
    eval (InIrcMsg msg)
        | (ircMsgCommand msg) == "PING" = writeMsg . OutIrcMsg $ IrcMsg Nothing "PONG" (ircMsgParameters msg)
        | otherwise = return ()
    eval _ = return ()