96 lines
2.5 KiB
Haskell
96 lines
2.5 KiB
Haskell
{-
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hledger - ledger-compatible money management tool (& haskell study)
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GPLv3, (c) Simon Michael & contributors
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inspired by John Wiegley's ledger at http://newartisans.com/ledger.html
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modules/models are organized roughly like this; each layer can only
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reference things below it:
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hledger
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Options
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Tests
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Parse
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Models
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Account
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Ledger
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EntryTransaction
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Entry
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Transaction
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AccountName
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BasicTypes
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Utils
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-}
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-- application logic & most IO
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module Main
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where
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import System
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import System.Environment (withArgs) -- for testing in old hugs
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import Test.HUnit (runTestTT)
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import Test.QuickCheck (quickCheck)
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import Text.ParserCombinators.Parsec (ParseError)
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import Debug.Trace
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import Options
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import Models
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import Parse
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import Tests
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import Utils
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main :: IO ()
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main = do
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(opts, args) <- (getArgs >>= getOptions)
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if args == []
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then register [] []
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else
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let (command, args') = (head args, tail args) in
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if "reg" `isPrefixOf` command then (register opts args')
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else if "bal" `isPrefixOf` command then balance opts args'
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else if "test" `isPrefixOf` command then test
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else putStr $ usageInfo usageHeader options
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-- commands
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test :: IO ()
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test = do
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hcounts <- runTestTT tests
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qcounts <- mapM quickCheck props
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return ()
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where showHunitCounts c =
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reverse $ tail $ reverse ("passed " ++ (unwords $ drop 5 $ words (show c)))
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register :: [Flag] -> [String] -> IO ()
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register opts args = do
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getLedgerFilePath opts >>= parseLedgerFile >>= doWithParsed (printRegister opts args)
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balance :: [Flag] -> [String] -> IO ()
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balance opts args = do
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getLedgerFilePath opts >>= parseLedgerFile >>= doWithParsed (printBalance opts args)
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-- utils
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-- doWithLedgerFile =
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-- getLedgerFilePath >>= parseLedgerFile >>= doWithParsed
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doWithParsed :: Show a => (a -> IO ()) -> (Either ParseError a) -> IO ()
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doWithParsed a p = do
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case p of Left e -> parseError e
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Right v -> a v
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printRegister :: [Flag] -> [String] -> Ledger -> IO ()
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printRegister opts args ledger = do
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putStr $ showTransactionsWithBalances
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(ledgerTransactionsMatching (acctpats,descpats) ledger)
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0
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where (acctpats,descpats) = ledgerPatternArgs args
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printBalance :: [Flag] -> [String] -> Ledger -> IO ()
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printBalance opts args ledger = do
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putStr $ showLedgerAccounts ledger showsubs acctpats
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where
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showsubs = (ShowSubs `elem` opts)
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(acctpats,_) = ledgerPatternArgs args
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