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)
  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 $ ko
 101          ([], journals) -> do
 102                 CLI.Ledger.equilibre context journals
 103                 let balance =
 104                         Data.List.foldl
 105                          (\b j -> Balance.journal_with_virtual
 106                                  (Hcompta.Format.Ledger.Journal.to_Model j) b)
 107                          Balance.nil
 108                          journals
 109                 Write.debug context $ ppShow $ balance
 110                 Write.debug context $ ppShow $
 111                         Lib.TreeMap.flatten (const ()) (Balance.by_account balance)
 112                 let expanded = Balance.expand $ Balance.by_account balance
 113                 Write.debug context $ ppShow $ expanded
 114                 with_color <- Write.with_color context IO.stdout
 115                 Ledger.Write.put with_color IO.stdout $ do
 116                         let (max_amount_length, accounts) = write_accounts ctx expanded
 117                         accounts <> do
 118                         (W.bold $ W.dullblack $
 119                                 W.text (TL.pack $ replicate max_amount_length '-') <>
 120                                 (if max_amount_length <= 0 then W.empty else W.line)) <> do
 121                         write_amounts max_amount_length $
 122                                 Data.Map.map Balance.amount $
 123                                 (Balance.by_unit balance)
 124
 125 write_accounts :: Ctx -> Balance.Expanded -> (Int, W.Doc)
 126 write_accounts ctx accounts = do
 127         let max_amount_length =
 128                 uncurry (+) $
 129                 Data.Foldable.foldl
 130                  (\(len, plus) Balance.Account_Sum_Expanded{Balance.inclusive=amounts} ->
 131                         let amounts_ = (if ctx_redundant ctx then amounts else Data.Map.filter (not . Amount.is_zero) amounts) in
 132                         ( Data.Map.foldr (max . Ledger.Write.amount_length) len amounts
 133                         , (if Data.Map.size amounts_ > 1
 134                                 then 2 -- NOTE: length "+ "
 135                                 else plus)
 136                         )
 137                  )
 138                  (0, 0) accounts
 139         (max_amount_length,) $ do
 140         Lib.TreeMap.foldl_with_Path_and_Node
 141          (\doc account node amounts ->
 142                 let descendants = Lib.TreeMap.nodes (Lib.TreeMap.node_descendants node) in
 143                 if not (ctx_redundant ctx) && (
 144                         Data.Map.null (Balance.exclusive amounts) ||
 145                         Data.Map.size
 146                          (Data.Map.filter
 147                                  ( maybe False (not . Amount.are_zero . Balance.inclusive)
 148                                  . Lib.TreeMap.node_content
 149                                  ) descendants) == 1
 150                  )
 151                 then doc
 152                 else
 153                         doc <> Data.Map.foldl
 154                          (\doc_ amount ->
 155                                 if not (ctx_redundant ctx) && Amount.is_zero amount
 156                                 then doc_
 157                                 else
 158                                         doc_ <>
 159                                         (if W.is_empty doc_
 160                                         then do
 161                                                 W.fill (max_amount_length - Ledger.Write.amount_length amount) W.empty <> do
 162                                                 Ledger.Write.amount amount <> do
 163                                                 W.space <> W.space <> do
 164                                                 Ledger.Write.account Posting.Type_Regular account
 165                                         else do
 166                                                 (W.bold $ W.dullblack $ W.text "+" <> W.space) <> do
 167                                                 W.fill (max_amount_length - Ledger.Write.amount_length amount - 2) W.empty <> do
 168                                                 Ledger.Write.amount amount) <> do
 169                                         W.line
 170                          ) W.empty (Balance.inclusive amounts)
 171          )
 172          W.empty accounts
 173
 174 write_amounts :: Int -> Amount.By_Unit -> W.Doc
 175 write_amounts max_amount_length_ amounts = do
 176         let max_amount_length =
 177                 Data.Map.foldr
 178                  (max . Ledger.Write.amount_length)
 179                  max_amount_length_ amounts
 180         (if Data.Map.size amounts > 1
 181                 then W.space <> W.space
 182                 else W.empty) <> do
 183         W.intercalate
 184          (W.line <> (W.bold $ W.dullblack $ W.text "+") <> W.space)
 185          (\amount ->
 186                 let len =
 187                         max_amount_length
 188                         - Ledger.Write.amount_length amount
 189                         - (if Data.Map.size amounts > 1
 190                                 then 2 -- NOTE: length "+ "
 191                                 else 0) in
 192                 W.fill len W.empty <> do
 193                 Ledger.Write.amount amount)
 194          amounts <> do
 195         (if Data.Map.null amounts then W.empty else W.line)