cli/Hcompta/CLI/Command/Balance.hs

   1 {-# LANGUAGE NamedFieldPuns #-}
   2 {-# LANGUAGE OverloadedStrings #-}
   3 {-# LANGUAGE TupleSections #-}
   4 module Hcompta.CLI.Command.Balance where
   5
   6 import           Control.Monad.IO.Class (liftIO)
   7 import           Control.Monad.Trans.Except (runExceptT)
   8 import qualified Data.Either
   9 import qualified Data.Foldable
  10 import qualified Data.List
  11 import qualified Data.Map
  12 import qualified Data.Text.Lazy as TL
  13 import           System.Console.GetOpt
  14                  ( ArgDescr(..)
  15                  , OptDescr(..)
  16                  , usageInfo
  17                  )
  18 import           System.Environment as Env (getProgName)
  19 import           System.Exit (exitWith, ExitCode(..))
  20 import qualified System.IO as IO
  21 import           Text.Show.Pretty (ppShow) -- TODO: may be not necessary
  22
  23 import qualified Hcompta.CLI.Args as Args
  24 import qualified Hcompta.CLI.Context as Context
  25 import qualified Hcompta.CLI.Format.Ledger as CLI.Ledger
  26 import qualified Hcompta.CLI.Write as Write
  27 import qualified Hcompta.Calc.Balance as Balance
  28 import qualified Hcompta.Format.Ledger.Journal
  29 import qualified Hcompta.Format.Ledger.Read as Ledger.Read
  30 import qualified Hcompta.Format.Ledger.Write as Ledger.Write
  31 import qualified Hcompta.Lib.TreeMap as Lib.TreeMap
  32 import qualified Hcompta.Lib.Leijen as W
  33 import           Hcompta.Lib.Leijen ((<>))
  34 import qualified Hcompta.Model.Amount as Amount
  35 import qualified Hcompta.Model.Transaction.Posting as Posting
  36 -- import qualified Hcompta.Format.Ledger.Write
  37
  38 data Ctx
  39  =   Ctx
  40  { ctx_input     :: [FilePath]
  41  , ctx_redundant :: Bool
  42  } deriving (Eq, Show)
  43
  44 nil :: Ctx
  45 nil =
  46         Ctx
  47          { ctx_input     = []
  48          , ctx_redundant = False
  49          }
  50
  51 usage :: IO String
  52 usage = do
  53         bin <- Env.getProgName
  54         return $ unlines $
  55                 [ "SYNTAX "
  56                 , "  "++bin++" balance [option..]"
  57                 , ""
  58                 , usageInfo "OPTIONS" options
  59                 ]
  60
  61 options :: Args.Options Ctx
  62 options =
  63         [ Option "h" ["help"]
  64          (NoArg (\_context _ctx -> do
  65                 usage >>= IO.hPutStr IO.stderr
  66                 exitWith ExitSuccess))
  67          "show this help"
  68         , Option "i" ["input"]
  69          (ReqArg (\s _context ctx -> do
  70                 return $ ctx{ctx_input=s:ctx_input ctx}) "FILE")
  71          "read data from given file, can be use multiple times"
  72         , Option "" ["redundant"]
  73          (OptArg (\arg context ctx -> do
  74                 redundant <- case arg of
  75                  Nothing    -> return $ True
  76                  Just "yes" -> return $ True
  77                  Just "no"  -> return $ False
  78                  Just _     -> Write.fatal context
  79                          "--redundant option expects \"yes\", or \"no\" as value"
  80                 return $ ctx{ctx_redundant=redundant})
  81           "[yes|no]")
  82          "also print accounts with zero amount or the same amounts than its ascending account"
  83         ]
  84
  85 run :: Context.Context -> [String] -> IO ()
  86 run context args = do
  87         (ctx, _) <- Args.parse context usage options (nil, args)
  88         koks <- do
  89                 CLI.Ledger.paths context $ ctx_input ctx
  90                 >>= do mapM $ \path -> do
  91                         liftIO $ runExceptT $
  92                                 Ledger.Read.file path
  93                         >>= \x -> case x of
  94                          Left  ko -> return $ Left (path, ko)
  95                          Right ok -> return $ Right ok
  96                 >>= return . Data.Either.partitionEithers
  97         case koks of
  98          (kos@(_:_), _oks) ->
  99                 (flip mapM_) kos $ \(_path, ko) ->
 100                         Write.fatal context $ show ko
 101          ([], journals) -> do
 102                 let balance =
 103                         Data.List.foldl'
 104                          (\b j -> Balance.journal_with_virtual
 105                                  (Hcompta.Format.Ledger.Journal.to_Model j) b)
 106                          Balance.nil
 107                          journals
 108                 Write.debug context $ ppShow $ balance
 109                 Write.debug context $ ppShow $
 110                         Lib.TreeMap.flatten (const ()) (Balance.by_account balance)
 111                 let expanded = Balance.expanded $ Balance.by_account balance
 112                 Write.debug context $ ppShow $ expanded
 113                 with_color <- Write.with_color context IO.stdout
 114                 Ledger.Write.put with_color IO.stdout $ do
 115                         let (max_amount_length, accounts) = write_accounts ctx expanded
 116                         accounts <> do
 117                         (if W.is_empty accounts
 118                                 then W.empty
 119                                 else (W.bold $ W.dullblack $
 120                                         W.text (TL.pack $ replicate max_amount_length '-') <>
 121                                         (if max_amount_length <= 0 then W.empty else W.line))) <> do
 122                         write_amounts max_amount_length $
 123                                 Data.Map.map Balance.amount $
 124                                 (Balance.by_unit balance)
 125
 126 write_accounts :: Ctx -> Balance.Expanded -> (Int, W.Doc)
 127 write_accounts ctx accounts = do
 128         let max_amount_length =
 129                 uncurry (+) $
 130                 Data.Foldable.foldl
 131                  (\(len, plus) Balance.Account_Sum_Expanded{Balance.inclusive=amounts} ->
 132                         let amounts_ = (if ctx_redundant ctx then amounts else Data.Map.filter (not . Amount.is_zero) amounts) in
 133                         ( Data.Map.foldr (max . Ledger.Write.amount_length) len amounts
 134                         , (if Data.Map.size amounts_ > 1
 135                                 then 2 -- NOTE: length "+ "
 136                                 else plus)
 137                         )
 138                  )
 139                  (0, 0) accounts
 140         (max_amount_length,) $ do
 141         Lib.TreeMap.foldl_with_Path_and_Node
 142          (\doc account node amounts ->
 143                 let descendants = Lib.TreeMap.nodes (Lib.TreeMap.node_descendants node) in
 144                 if not (ctx_redundant ctx) && (
 145                         Data.Map.size
 146                          (Data.Map.filter
 147                                  (not . Amount.is_zero)
 148                                  (Balance.exclusive amounts)) == 0 &&
 149                         Data.Map.size
 150                          (Data.Map.filter
 151                                  ( maybe False (not . Amount.are_zero . Balance.inclusive)
 152                                  . Lib.TreeMap.node_value
 153                                  ) descendants) == 1
 154                  )
 155                 then doc
 156                 else
 157                         doc <> Data.Map.foldl
 158                          (\doc_ amount ->
 159                                 if not (ctx_redundant ctx) && Amount.is_zero amount
 160                                 then doc_
 161                                 else
 162                                         doc_ <>
 163                                         (if W.is_empty doc_
 164                                         then do
 165                                                 W.fill (max_amount_length - Ledger.Write.amount_length amount) W.empty <> do
 166                                                 Ledger.Write.amount amount <> do
 167                                                 W.space <> W.space <> do
 168                                                 Ledger.Write.account Posting.Type_Regular account
 169                                         else do
 170                                                 (W.bold $ W.dullblack $ W.text "+" <> W.space) <> do
 171                                                 W.fill (max_amount_length - Ledger.Write.amount_length amount - 2) W.empty <> do
 172                                                 Ledger.Write.amount amount) <> do
 173                                         W.line
 174                          ) W.empty (Balance.inclusive amounts)
 175          )
 176          W.empty accounts
 177
 178 write_amounts :: Int -> Amount.By_Unit -> W.Doc
 179 write_amounts max_amount_length_ amounts = do
 180         let max_amount_length =
 181                 Data.Map.foldr
 182                  (max . Ledger.Write.amount_length)
 183                  max_amount_length_ amounts
 184         (if Data.Map.size amounts > 1
 185                 then W.space <> W.space
 186                 else W.empty) <> do
 187         W.intercalate
 188          (W.line <> (W.bold $ W.dullblack $ W.text "+") <> W.space)
 189          (\amount ->
 190                 let len =
 191                         max_amount_length
 192                         - Ledger.Write.amount_length amount
 193                         - (if Data.Map.size amounts > 1
 194                                 then 2 -- NOTE: length "+ "
 195                                 else 0) in
 196                 W.fill len W.empty <> do
 197                 Ledger.Write.amount amount)
 198          amounts <> do
 199         (if Data.Map.null amounts then W.empty else W.line)