423 lines
21 KiB
Haskell
423 lines
21 KiB
Haskell
-- The account register screen, showing transactions in an account, like hledger-web's register.
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE NamedFieldPuns #-}
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module Hledger.UI.RegisterScreen
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(registerScreen
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,rsHandle
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,rsSetAccount
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,rsCenterAndContinue
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)
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where
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import Control.Monad
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import Control.Monad.IO.Class (liftIO)
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import Data.List
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import Data.Maybe
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import qualified Data.Text as T
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import Data.Time.Calendar
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import qualified Data.Vector as V
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import Graphics.Vty (Event(..),Key(..),Modifier(..), Button (BLeft, BScrollDown, BScrollUp))
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import Brick
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import Brick.Widgets.List hiding (reverse)
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import Brick.Widgets.Edit
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import Lens.Micro.Platform
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import Safe
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import System.Console.ANSI
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import Hledger
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import Hledger.Cli hiding (progname,prognameandversion)
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import Hledger.UI.UIOptions
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-- import Hledger.UI.Theme
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import Hledger.UI.UITypes
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import Hledger.UI.UIState
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import Hledger.UI.UIUtils
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import Hledger.UI.Editor
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import Hledger.UI.TransactionScreen
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import Hledger.UI.ErrorScreen
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import Data.Vector ((!?))
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registerScreen :: Screen
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registerScreen = RegisterScreen{
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sInit = rsInit
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,sDraw = rsDraw
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,sHandle = rsHandle
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,rsList = list RegisterList V.empty 1
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,rsAccount = ""
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,rsForceInclusive = False
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}
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rsSetAccount :: AccountName -> Bool -> Screen -> Screen
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rsSetAccount a forceinclusive scr@RegisterScreen{} =
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scr{rsAccount=replaceHiddenAccountsNameWith "*" a, rsForceInclusive=forceinclusive}
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rsSetAccount _ _ scr = scr
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rsInit :: Day -> Bool -> UIState -> UIState
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rsInit d reset ui@UIState{aopts=_uopts@UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec@ReportSpec{_rsReportOpts=ropts}}}, ajournal=j, aScreen=s@RegisterScreen{..}} =
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ui{aScreen=s{rsList=newitems'}}
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where
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-- gather arguments and queries
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-- XXX temp
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inclusive = tree_ ropts || rsForceInclusive
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thisacctq = Acct $ (if inclusive then accountNameToAccountRegex else accountNameToAccountOnlyRegex) rsAccount
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-- adjust the report options and regenerate the ReportSpec, carefully as usual to avoid screwups (#1523)
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ropts' = ropts {
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-- ignore any depth limit, as in postingsReport; allows register's total to match accounts screen
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depth_=Nothing
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-- XXX aregister also has this, needed ?
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-- always show historical balance
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-- , balanceaccum_= Historical
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}
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wd = whichDate ropts'
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rspec' = reportSpecSetFutureAndForecast d (forecast_ $ inputopts_ copts) .
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either (error "rsInit: adjusting the query for register, should not have failed") id $ -- PARTIAL:
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updateReportSpec ropts' rspec{_rsDay=d}
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items = accountTransactionsReport rspec' j thisacctq
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items' = (if empty_ ropts then id else filter (not . mixedAmountLooksZero . fifth6)) $ -- without --empty, exclude no-change txns
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reverse -- most recent last
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items
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-- generate pre-rendered list items. This helps calculate column widths.
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displayitems = map displayitem items'
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where
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displayitem (t, _, _issplit, otheracctsstr, change, bal) =
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RegisterScreenItem{rsItemDate = showDate $ transactionRegisterDate wd (_rsQuery rspec') thisacctq t
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,rsItemStatus = tstatus t
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,rsItemDescription = tdescription t
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,rsItemOtherAccounts = otheracctsstr
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-- _ -> "<split>" -- should do this if accounts field width < 30
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,rsItemChangeAmount = showamt change
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,rsItemBalanceAmount = showamt bal
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,rsItemTransaction = t
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}
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where showamt = showMixedAmountB oneLine{displayMaxWidth=Just 32}
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-- blank items are added to allow more control of scroll position; we won't allow movement over these.
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-- XXX Ugly. Changing to 0 helps when debugging.
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blankitems = replicate 100 -- "100 ought to be enough for anyone"
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RegisterScreenItem{rsItemDate = ""
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,rsItemStatus = Unmarked
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,rsItemDescription = ""
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,rsItemOtherAccounts = ""
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,rsItemChangeAmount = mempty
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,rsItemBalanceAmount = mempty
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,rsItemTransaction = nulltransaction
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}
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-- build the List
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newitems = list RegisterList (V.fromList $ displayitems ++ blankitems) 1
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-- decide which transaction is selected:
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-- if reset is true, the last (latest) transaction;
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-- otherwise, the previously selected transaction if possible;
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-- otherwise, the transaction nearest in date to it;
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-- or if there's several with the same date, the nearest in journal order;
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-- otherwise, the last (latest) transaction.
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newitems' = listMoveTo newselidx newitems
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where
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newselidx =
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case (reset, listSelectedElement rsList) of
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(True, _) -> endidx
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(_, Nothing) -> endidx
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(_, Just (_, RegisterScreenItem{rsItemTransaction=Transaction{tindex=prevselidx, tdate=prevseld}})) ->
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headDef endidx $ catMaybes [
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findIndex ((==prevselidx) . tindex . rsItemTransaction) displayitems
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,findIndex ((==nearestidbydatethenid) . Just . tindex . rsItemTransaction) displayitems
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]
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where
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nearestidbydatethenid = third3 <$> (headMay $ sort
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[(abs $ diffDays (tdate t) prevseld, abs (tindex t - prevselidx), tindex t) | t <- ts])
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ts = map rsItemTransaction displayitems
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endidx = max 0 $ length displayitems - 1
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rsInit _ _ _ = error "init function called with wrong screen type, should not happen" -- PARTIAL:
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rsDraw :: UIState -> [Widget Name]
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rsDraw UIState{aopts=_uopts@UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec}}
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,aScreen=RegisterScreen{..}
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,aMode=mode
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} =
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case mode of
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Help -> [helpDialog copts, maincontent]
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-- Minibuffer e -> [minibuffer e, maincontent]
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_ -> [maincontent]
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where
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displayitems = V.toList $ rsList ^. listElementsL
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maincontent = Widget Greedy Greedy $ do
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-- calculate column widths, based on current available width
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c <- getContext
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let
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totalwidth = c^.availWidthL
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- 2 -- XXX due to margin ? shouldn't be necessary (cf UIUtils)
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-- the date column is fixed width
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datewidth = 10
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-- multi-commodity amounts rendered on one line can be
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-- arbitrarily wide. Give the two amounts as much space as
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-- they need, while reserving a minimum of space for other
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-- columns and whitespace. If they don't get all they need,
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-- allocate it to them proportionally to their maximum widths.
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whitespacewidth = 10 -- inter-column whitespace, fixed width
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minnonamtcolswidth = datewidth + 1 + 2 + 2 -- date column plus at least 1 for status and 2 for desc and accts
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maxamtswidth = max 0 (totalwidth - minnonamtcolswidth - whitespacewidth)
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maxchangewidthseen = maximum' $ map (wbWidth . rsItemChangeAmount) displayitems
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maxbalwidthseen = maximum' $ map (wbWidth . rsItemBalanceAmount) displayitems
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changewidthproportion = fromIntegral maxchangewidthseen / fromIntegral (maxchangewidthseen + maxbalwidthseen)
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maxchangewidth = round $ changewidthproportion * fromIntegral maxamtswidth
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maxbalwidth = maxamtswidth - maxchangewidth
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changewidth = min maxchangewidth maxchangewidthseen
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balwidth = min maxbalwidth maxbalwidthseen
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-- assign the remaining space to the description and accounts columns
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-- maxdescacctswidth = totalwidth - (whitespacewidth - 4) - changewidth - balwidth
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maxdescacctswidth =
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-- trace (show (totalwidth, datewidth, changewidth, balwidth, whitespacewidth)) $
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max 0 (totalwidth - datewidth - 1 - changewidth - balwidth - whitespacewidth)
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-- allocating proportionally.
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-- descwidth' = maximum' $ map (strWidth . second6) displayitems
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-- acctswidth' = maximum' $ map (strWidth . third6) displayitems
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-- descwidthproportion = (descwidth' + acctswidth') / descwidth'
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-- maxdescwidth = min (maxdescacctswidth - 7) (maxdescacctswidth / descwidthproportion)
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-- maxacctswidth = maxdescacctswidth - maxdescwidth
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-- descwidth = min maxdescwidth descwidth'
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-- acctswidth = min maxacctswidth acctswidth'
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-- allocating equally.
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descwidth = maxdescacctswidth `div` 2
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acctswidth = maxdescacctswidth - descwidth
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colwidths = (datewidth,descwidth,acctswidth,changewidth,balwidth)
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render $ defaultLayout toplabel bottomlabel $ renderList (rsDrawItem colwidths) True rsList
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where
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ropts = _rsReportOpts rspec
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ishistorical = balanceaccum_ ropts == Historical
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-- inclusive = tree_ ropts || rsForceInclusive
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toplabel =
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withAttr ("border" <> "bold") (str $ T.unpack $ replaceHiddenAccountsNameWith "All" rsAccount)
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-- <+> withAttr ("border" <> "query") (str $ if inclusive then "" else " exclusive")
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<+> togglefilters
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<+> str " transactions"
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-- <+> str (if ishistorical then " historical total" else " period total")
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<+> borderQueryStr (T.unpack . T.unwords . map textQuoteIfNeeded $ querystring_ ropts)
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-- <+> str " and subs"
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<+> borderPeriodStr "in" (period_ ropts)
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<+> str " ("
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<+> cur
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<+> str "/"
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<+> total
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<+> str ")"
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<+> (if ignore_assertions_ . balancingopts_ $ inputopts_ copts then withAttr ("border" <> "query") (str " ignoring balance assertions") else str "")
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where
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togglefilters =
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case concat [
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uiShowStatus copts $ statuses_ ropts
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,if real_ ropts then ["real"] else []
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,if empty_ ropts then [] else ["nonzero"]
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] of
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[] -> str ""
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fs -> withAttr ("border" <> "query") (str $ " " ++ intercalate ", " fs)
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cur = str $ case rsList ^. listSelectedL of
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Nothing -> "-"
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Just i -> show (i + 1)
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total = str $ show $ length nonblanks
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nonblanks = V.takeWhile (not . T.null . rsItemDate) $ rsList^.listElementsL
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-- query = query_ $ reportopts_ $ cliopts_ opts
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bottomlabel = case mode of
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Minibuffer label ed -> minibuffer label ed
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_ -> quickhelp
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where
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quickhelp = borderKeysStr' [
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("?", str "help")
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,("LEFT", str "back")
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-- ,("RIGHT", str "transaction")
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-- tree/list mode - rsForceInclusive may override, but use tree_ to ensure a visible toggle effect
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,("t", renderToggle (tree_ ropts) "list(-subs)" "tree(+subs)")
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-- ,("t", str "tree(+subs)")
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-- ,("l", str "list(-subs)")
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,("H", renderToggle (not ishistorical) "historical" "period")
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,("F", renderToggle1 (isJust . forecast_ . inputopts_ $ copts) "forecast")
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-- ,("a", "add")
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-- ,("g", "reload")
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-- ,("q", "quit")
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]
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rsDraw _ = error "draw function called with wrong screen type, should not happen" -- PARTIAL:
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rsDrawItem :: (Int,Int,Int,Int,Int) -> Bool -> RegisterScreenItem -> Widget Name
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rsDrawItem (datewidth,descwidth,acctswidth,changewidth,balwidth) selected RegisterScreenItem{..} =
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Widget Greedy Fixed $ do
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render $
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txt (fitText (Just datewidth) (Just datewidth) True True rsItemDate) <+>
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txt " " <+>
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txt (fitText (Just 1) (Just 1) True True (T.pack $ show rsItemStatus)) <+>
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txt " " <+>
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txt (fitText (Just descwidth) (Just descwidth) True True rsItemDescription) <+>
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txt " " <+>
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txt (fitText (Just acctswidth) (Just acctswidth) True True rsItemOtherAccounts) <+>
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txt " " <+>
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withAttr changeattr (txt $ fitText (Just changewidth) (Just changewidth) True False changeAmt) <+>
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txt " " <+>
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withAttr balattr (txt $ fitText (Just balwidth) (Just balwidth) True False balanceAmt)
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where
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changeAmt = wbToText rsItemChangeAmount
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balanceAmt = wbToText rsItemBalanceAmount
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changeattr | T.any (=='-') changeAmt = sel $ "list" <> "amount" <> "decrease"
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| otherwise = sel $ "list" <> "amount" <> "increase"
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balattr | T.any (=='-') balanceAmt = sel $ "list" <> "balance" <> "negative"
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| otherwise = sel $ "list" <> "balance" <> "positive"
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sel | selected = (<> "selected")
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| otherwise = id
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rsHandle :: UIState -> BrickEvent Name AppEvent -> EventM Name (Next UIState)
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rsHandle ui@UIState{
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aScreen=s@RegisterScreen{..}
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,aopts=UIOpts{uoCliOpts=copts}
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,ajournal=j
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,aMode=mode
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} ev = do
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let
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d = copts^.rsDay
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journalspan = journalDateSpan False j
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nonblanks = V.takeWhile (not . T.null . rsItemDate) $ rsList^.listElementsL
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lastnonblankidx = max 0 (length nonblanks - 1)
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case mode of
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Minibuffer _ ed ->
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case ev of
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VtyEvent (EvKey KEsc []) -> continue $ closeMinibuffer ui
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VtyEvent (EvKey KEnter []) -> continue $ regenerateScreens j d $
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case setFilter s $ closeMinibuffer ui of
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Left bad -> showMinibuffer "Cannot compile regular expression" (Just bad) ui
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Right ui' -> ui'
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where s = chomp . unlines . map strip $ getEditContents ed
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-- VtyEvent (EvKey (KChar '/') []) -> continue $ regenerateScreens j d $ showMinibuffer ui
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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VtyEvent ev -> do ed' <- handleEditorEvent ev ed
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continue $ ui{aMode=Minibuffer "filter" ed'}
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AppEvent _ -> continue ui
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MouseDown{} -> continue ui
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MouseUp{} -> continue ui
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Help ->
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case ev of
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-- VtyEvent (EvKey (KChar 'q') []) -> halt ui
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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_ -> helpHandle ui ev
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Normal ->
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case ev of
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VtyEvent (EvKey (KChar 'q') []) -> halt ui
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VtyEvent (EvKey KEsc []) -> continue $ resetScreens d ui
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VtyEvent (EvKey (KChar c) []) | c == '?' -> continue $ setMode Help ui
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AppEvent (DateChange old _) | isStandardPeriod p && p `periodContainsDate` old ->
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continue $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
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where
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p = reportPeriod ui
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e | e `elem` [VtyEvent (EvKey (KChar 'g') []), AppEvent FileChange] ->
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liftIO (uiReloadJournal copts d ui) >>= continue
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VtyEvent (EvKey (KChar 'I') []) -> continue $ uiCheckBalanceAssertions d (toggleIgnoreBalanceAssertions ui)
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VtyEvent (EvKey (KChar 'a') []) -> suspendAndResume $ clearScreen >> setCursorPosition 0 0 >> add copts j >> uiReloadJournalIfChanged copts d j ui
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VtyEvent (EvKey (KChar 'A') []) -> suspendAndResume $ void (runIadd (journalFilePath j)) >> uiReloadJournalIfChanged copts d j ui
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VtyEvent (EvKey (KChar 'T') []) -> continue $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
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VtyEvent (EvKey (KChar 'E') []) -> suspendAndResume $ void (runEditor pos f) >> uiReloadJournalIfChanged copts d j ui
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where
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(pos,f) = case listSelectedElement rsList of
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Nothing -> (endPosition, journalFilePath j)
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Just (_, RegisterScreenItem{
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rsItemTransaction=Transaction{tsourcepos=(SourcePos f l c,_)}}) -> (Just (unPos l, Just $ unPos c),f)
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-- display mode/query toggles
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VtyEvent (EvKey (KChar 'B') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleCost ui
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VtyEvent (EvKey (KChar 'V') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleValue ui
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VtyEvent (EvKey (KChar 'H') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleHistorical ui
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VtyEvent (EvKey (KChar 't') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleTree ui
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VtyEvent (EvKey (KChar c) []) | c `elem` ['z','Z'] -> rsCenterAndContinue $ regenerateScreens j d $ toggleEmpty ui
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VtyEvent (EvKey (KChar 'R') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleReal ui
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VtyEvent (EvKey (KChar 'U') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleUnmarked ui
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VtyEvent (EvKey (KChar 'P') []) -> rsCenterAndContinue $ regenerateScreens j d $ togglePending ui
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VtyEvent (EvKey (KChar 'C') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleCleared ui
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VtyEvent (EvKey (KChar 'F') []) -> rsCenterAndContinue $ regenerateScreens j d $ toggleForecast d ui
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VtyEvent (EvKey (KChar '/') []) -> continue $ regenerateScreens j d $ showMinibuffer "filter" Nothing ui
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VtyEvent (EvKey (KDown) [MShift]) -> continue $ regenerateScreens j d $ shrinkReportPeriod d ui
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VtyEvent (EvKey (KUp) [MShift]) -> continue $ regenerateScreens j d $ growReportPeriod d ui
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VtyEvent (EvKey (KRight) [MShift]) -> continue $ regenerateScreens j d $ nextReportPeriod journalspan ui
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VtyEvent (EvKey (KLeft) [MShift]) -> continue $ regenerateScreens j d $ previousReportPeriod journalspan ui
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VtyEvent (EvKey k []) | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> scrollSelectionToMiddle rsList >> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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-- exit screen on LEFT
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VtyEvent e | e `elem` moveLeftEvents -> continue $ popScreen ui
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-- or on a click in the app's left margin. This is a VtyEvent since not in a clickable widget.
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VtyEvent (EvMouseUp x _y (Just BLeft)) | x==0 -> continue $ popScreen ui
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-- or on clicking a blank list item.
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MouseUp _ (Just BLeft) Location{loc=(_,y)} | clickeddate == "" -> continue $ popScreen ui
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where clickeddate = maybe "" rsItemDate $ listElements rsList !? y
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-- enter transaction screen on RIGHT
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VtyEvent e | e `elem` moveRightEvents ->
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case listSelectedElement rsList of
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Just _ -> continue $ screenEnter d transactionScreen{tsAccount=rsAccount} ui
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Nothing -> continue ui
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-- or on transaction click
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-- MouseDown is sometimes duplicated, https://github.com/jtdaugherty/brick/issues/347
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-- just use it to move the selection
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MouseDown _n BLeft _mods Location{loc=(_x,y)} | not $ (=="") clickeddate -> do
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continue $ ui{aScreen=s{rsList=listMoveTo y rsList}}
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where clickeddate = maybe "" rsItemDate $ listElements rsList !? y
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-- and on MouseUp, enter the subscreen
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MouseUp _n (Just BLeft) Location{loc=(_x,y)} | not $ (=="") clickeddate -> do
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continue $ screenEnter d transactionScreen{tsAccount=rsAccount} ui
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where clickeddate = maybe "" rsItemDate $ listElements rsList !? y
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-- when selection is at the last item, DOWN scrolls instead of moving, until maximally scrolled
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VtyEvent e | e `elem` moveDownEvents, isBlankElement mnextelement -> do
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vScrollBy (viewportScroll $ rsList ^. listNameL) 1 >> continue ui
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where mnextelement = listSelectedElement $ listMoveDown rsList
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-- mouse scroll wheel scrolls the viewport up or down to its maximum extent,
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-- pushing the selection when necessary.
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MouseDown name btn _mods _loc | btn `elem` [BScrollUp, BScrollDown] -> do
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let scrollamt = if btn==BScrollUp then -1 else 1
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list' <- listScrollPushingSelection name rsList (rsListSize rsList) scrollamt
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continue ui{aScreen=s{rsList=list'}}
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-- if page down or end leads to a blank padding item, stop at last non-blank
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VtyEvent e@(EvKey k []) | k `elem` [KPageDown, KEnd] -> do
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list <- handleListEvent e rsList
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if isBlankElement $ listSelectedElement list
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then do
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let list' = listMoveTo lastnonblankidx list
|
|
scrollSelectionToMiddle list'
|
|
continue ui{aScreen=s{rsList=list'}}
|
|
else
|
|
continue ui{aScreen=s{rsList=list}}
|
|
|
|
-- fall through to the list's event handler (handles other [pg]up/down events)
|
|
VtyEvent ev -> do
|
|
let ev' = normaliseMovementKeys ev
|
|
newitems <- handleListEvent ev' rsList
|
|
continue ui{aScreen=s{rsList=newitems}}
|
|
|
|
MouseDown{} -> continue ui
|
|
MouseUp{} -> continue ui
|
|
AppEvent _ -> continue ui
|
|
|
|
rsHandle _ _ = error "event handler called with wrong screen type, should not happen" -- PARTIAL:
|
|
|
|
isBlankElement mel = ((rsItemDate . snd) <$> mel) == Just ""
|
|
|
|
rsCenterAndContinue ui = do
|
|
scrollSelectionToMiddle $ rsList $ aScreen ui
|
|
continue ui
|
|
|
|
rsListSize = V.length . V.takeWhile ((/="").rsItemDate) . listElements |