91 lines
2.6 KiB
Haskell
91 lines
2.6 KiB
Haskell
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module Handler.Transfer where
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import Import
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import Handler.Common
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import Data.Maybe
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import Text.Shakespeare.Text (stext)
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getTransferSelectR :: UserId -> Handler Html
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getTransferSelectR from = do
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mUser <- runDB $ get from
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case mUser of
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Just user -> do
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users <- runDB $ selectList [UserId !=. from] [Asc UserIdent]
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defaultLayout $ do
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$(widgetFile "transferSelect")
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Nothing -> do
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setMessageI MsgUserUnknown
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redirect HomeR
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getTransferR :: UserId -> UserId -> Handler Html
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getTransferR from to = do
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mSender <- runDB $ get from
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case mSender of
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Just sender -> do
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mRecpt <- runDB $ get to
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case mRecpt of
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Just recpt -> do
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(transferWidget, enctype) <- generateFormPost transferForm
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currency <- appCurrency <$> appSettings <$> getYesod
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defaultLayout $ do
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$(widgetFile "transfer")
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Nothing -> do
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setMessageI MsgUserUnknown
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redirect $ TransferSelectR from
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Nothing -> do
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setMessageI MsgUserUnknown
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redirect HomeR
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postTransferR :: UserId -> UserId -> Handler Html
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postTransferR from to = do
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mSender <- runDB $ get from
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case mSender of
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Just sender -> do
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mRecpt <- runDB $ get to
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case mRecpt of
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Just recpt -> do
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((res, _), _) <- runFormPost transferForm
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case res of
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FormSuccess amount -> do
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case amount < 0 of
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False -> do
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runDB $ update from [UserBalance -=. amount]
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runDB $ update to [UserBalance +=. amount]
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master <- getYesod
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liftIO $ notify sender recpt amount master
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setMessageI MsgTransferComplete
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redirect HomeR
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True -> do
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setMessageI MsgNegativeTransfer
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redirect $ TransferR from to
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_ -> do
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setMessageI MsgTransferError
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redirect HomeR
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Nothing -> do
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setMessageI MsgUserUnknown
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redirect $ TransferSelectR from
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Nothing -> do
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setMessageI MsgUserUnknown
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redirect HomeR
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transferForm :: Form Int
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transferForm = renderDivs
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$ areq currencyField (fieldSettingsLabel MsgValue) (Just 0)
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notify :: User -> User -> Int -> App -> IO ()
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notify sender recpt amount master = do
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case userEmail sender of
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Just email ->
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liftIO $ sendMail email "Guthabentransfer beim Matematen"
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[stext|
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Hallo #{userIdent sender}
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Du hast gerade #{formatIntCurrency amount}#{appCurrency $ appSettings master} an #{userIdent recpt} transferiert.
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Viele Grüßem
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Der Matemat
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|]
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Nothing ->
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return ()
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