100 lines
3.3 KiB
Haskell
100 lines
3.3 KiB
Haskell
-- yammat - Yet Another MateMAT
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-- Copyright (C) 2015 Amedeo Molnár
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--
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-- This program is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU Affero General Public License as published
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-- by the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU Affero General Public License for more details.
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--
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-- You should have received a copy of the GNU Affero General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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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 =
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isUser from HomeR >>= (\_ -> do
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users <- runDB $ selectList [UserId !=. from] [Asc UserIdent]
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defaultLayout $ do
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setTitleI MsgTransfer
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$(widgetFile "transferSelect")
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)
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getTransferR :: UserId -> UserId -> Handler Html
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getTransferR from to =
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isUser from HomeR >>= (\sender ->
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isUser to (TransferSelectR from) >>= (\recpt -> do
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(transferWidget, enctype) <- generateFormPost
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$ renderBootstrap3 BootstrapBasicForm transferForm
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currency <- appCurrency <$> appSettings <$> getYesod
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defaultLayout $ do
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setTitleI MsgTransfer
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$(widgetFile "transfer")
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)
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)
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postTransferR :: UserId -> UserId -> Handler Html
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postTransferR from to =
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isUser from HomeR >>= (\sender ->
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isUser to (TransferSelectR from) >>= (\recpt -> do
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((res, _), _) <- runFormPost
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$ renderBootstrap3 BootstrapBasicForm transferForm
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case res of
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FormSuccess amount
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| amount < 0 -> do
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setMessageI MsgNegativeTransfer
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redirect $ TransferR from to
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| userBalance sender < amount -> do
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setMessageI MsgNotEnoughFunds
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redirect HomeR
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| otherwise -> 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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_ -> do
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setMessageI MsgTransferError
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redirect HomeR
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)
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)
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transferForm :: AForm Handler Int
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transferForm = areq currencyField (bfs MsgValue) (Just 0)
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<* bootstrapSubmit (msgToBSSubmit MsgTransfer)
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notify :: User -> User -> Int -> App -> IO ()
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notify sender rcpt amount master = do
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when (isJust $ userEmail sender) $
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liftIO $ sendMail (fromJust $ userEmail sender) "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 rcpt} transferiert.
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Viele Grüße,
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Dein Matemat
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|]
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when (isJust $ userEmail rcpt) $
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liftIO $ sendMail (fromJust $ userEmail rcpt) "Guthabentransfer eingetroffen"
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[stext|
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Hallo #{userIdent rcpt}
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Du hast gerade #{formatIntCurrency amount}#{appCurrency $ appSettings master} von #{userIdent sender} erhalten.
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Viele Grüße,
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Dein Matemat
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|]
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