cli/Hcompta/CLI/Command/Balance.hs

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