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Added quote delete.

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Julien Dessaux 2011-09-19 00:36:40 +02:00
parent 0a6a1a2af0
commit 5e260c4fa9
1 changed files with 53 additions and 1 deletions
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54
Hsbot/Plugin/Quote.hs
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@ -90,13 +90,18 @@ lockQuoteIdFor :: QuoteID -> IRC.UserName -> IRC.Channel -> UTCTime -> Update Qu
lockQuoteIdFor quoteId requestor channel now = get >>= \db -> put db { lockedQuotes = M.insert quoteId (requestor, now) (lockedQuotes db)
, lastActive = M.insert channel quoteId (lastActive db) }
deleteQuote :: QuoteID -> IRC.Channel -> Update QuoteDB ()
deleteQuote quoteId channel = get >>= \db -> put db { quoteBotDB = M.delete quoteId (quoteBotDB db)
, lockedQuotes = M.delete quoteId (lockedQuotes db)
, lastActive = M.delete channel (lastActive db) }
setQuote :: QuoteID -> Quote -> Update QuoteDB ()
setQuote quoteId theQuote = get >>= \db -> put db { quoteBotDB = M.insert quoteId theQuote (quoteBotDB db) }
getLastActiveQuote :: IRC.Channel -> Query QuoteDB (Maybe QuoteID)
getLastActiveQuote channel = asks lastActive >>= return . M.lookup channel
$(makeAcidic ''QuoteDB [ 'getQuote, 'getQuoteDB, 'isQuoteLockedFor, 'lockQuoteIdFor, 'setQuote
$(makeAcidic ''QuoteDB [ 'getQuote, 'getQuoteDB, 'isQuoteLockedFor, 'lockQuoteIdFor, 'deleteQuote, 'setQuote
, 'getLastActiveQuote ])
-- | gets a random quote from the database
@ -133,6 +138,15 @@ theQuote = do
case lastQid of
Just qid -> quoteAppend quoteDB msg qid quotee . unwords $ quoteID : quoteTxt
Nothing -> answerMsg msg $ getSender msg ++ " : Invalid quoteID."
"quote":"delete":quoteID:eltID ->
case reads quoteID :: [(Int, String)] of
(qid,_):_ -> case eltID of
[] -> quoteDelete quoteDB msg qid
eltID':[] -> case reads eltID' :: [(Int, String)] of
(eltid,_):_ -> quoteDeleteElt quoteDB msg qid eltid
_ -> answerMsg msg $ getSender msg ++ ": Invalid elementID."
_ -> answerMsg msg $ getSender msg ++ ": Invalid elementID."
_ -> answerMsg msg $ getSender msg ++ " : Invalid quoteID."
"quote":"help":"append":_ -> answerMsg msg $ "quote append [QUOTEID] QUOTEE QUOTE"
++ "If no QUOTEID is provided, tries to append to the last active quote."
"quote":"help":"delete":_ -> do
@ -183,3 +197,41 @@ quoteAppend quoteDB msg quoteID quotee text = do
sender = getSender msg
channel = getChannel msg
quoteDelete :: AcidState QuoteDB -> IRC.Message -> QuoteID -> Plugin (Env IO) ()
quoteDelete quoteDB msg quoteID = do
now <- liftIO getCurrentTime
activeLock <- query' quoteDB (IsQuoteLockedFor quoteID sender now)
case activeLock of
Just True -> do
_ <- update' quoteDB (DeleteQuote quoteID channel)
answerMsg msg $ sender ++ ": quote " ++ show quoteID ++ "."
Just False -> answerMsg msg $ sender ++ ": Someone else is editing this quote right now."
Nothing -> answerMsg msg $ sender ++ ":quoteId not found."
where
sender = getSender msg
channel = getChannel msg
quoteDeleteElt :: AcidState QuoteDB -> IRC.Message -> QuoteID -> Int -> Plugin (Env IO) ()
quoteDeleteElt quoteDB msg quoteID eltID = do
now <- liftIO getCurrentTime
activeLock <- query' quoteDB (IsQuoteLockedFor quoteID sender now)
case activeLock of
Just True -> do
_ <- update' quoteDB (LockQuoteIdFor quoteID sender channel now)
mQuote <- query' quoteDB (GetQuote quoteID)
let newQuote = fromMaybe emptyQuote mQuote
newQuote' = newQuote { quotE = getRidOfEltFrom (quotE newQuote) }
_ <- update' quoteDB (SetQuote quoteID newQuote')
answerMsg msg $ sender ++ ": Appended to quote " ++ show quoteID ++ "."
Just False -> answerMsg msg $ sender ++ ": Someone else is editing this quote right now."
Nothing -> answerMsg msg $ sender ++ ":quoteId not found."
where
sender = getSender msg
channel = getChannel msg
getRidOfEltFrom :: [QuoteElt] -> [QuoteElt]
getRidOfEltFrom elts
| eltID <= 0 = elts
| eltID >= length elts = elts
| otherwise = let (l, r) = splitAt eltID elts
in l ++ tail r