219 lines
9.8 KiB
Haskell
219 lines
9.8 KiB
Haskell
-- The transaction screen, showing a single transaction's general journal entry.
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE TupleSections #-}
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{-# OPTIONS_GHC -Wno-incomplete-record-updates #-}
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module Hledger.UI.TransactionScreen
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( transactionScreen
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) where
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import Control.Monad
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import Control.Monad.Except (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 (Day)
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import qualified Data.Vector as V
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import Graphics.Vty (Event(..),Key(..),Modifier(..), Button (BLeft))
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import Lens.Micro ((^.))
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import Brick
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import Brick.Widgets.List (listElementsL, listMoveTo, listSelectedElement)
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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.ErrorScreen
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import Brick.Widgets.Edit (editorText, renderEditor)
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transactionScreen :: Screen
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transactionScreen = TransactionScreen{
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sInit = tsInit
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,sDraw = tsDraw
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,sHandle = tsHandle
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,tsTransaction = (1,nulltransaction)
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,tsTransactions = [(1,nulltransaction)]
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,tsAccount = ""
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}
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tsInit :: Day -> Bool -> UIState -> UIState
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tsInit _d _reset ui@UIState{aopts=UIOpts{}
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,ajournal=_j
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,aScreen=s@TransactionScreen{tsTransaction=(_,t),tsTransactions=nts}
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,aPrevScreens=prevscreens
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} =
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ui{aScreen=s{tsTransaction=(i',t'),tsTransactions=nts'}}
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where
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i' = maybe 0 (toInteger . (+1)) . elemIndex t' $ map snd nts'
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-- If the previous screen was RegisterScreen, use the listed and selected items as
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-- the transactions. Otherwise, use the provided transaction and list.
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(t',nts') = case prevscreens of
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RegisterScreen{rsList=xs}:_ -> (seltxn, zip [1..] $ map rsItemTransaction nonblanks)
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where
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seltxn = maybe nulltransaction (rsItemTransaction . snd) $ listSelectedElement xs
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nonblanks = V.toList . V.takeWhile (not . T.null . rsItemDate) $ xs ^. listElementsL
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_ -> (t, nts)
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tsInit _ _ _ = error "init function called with wrong screen type, should not happen" -- PARTIAL:
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-- Render a transaction suitably for the transaction screen.
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showTxn :: ReportOpts -> ReportSpec -> Journal -> Transaction -> T.Text
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showTxn ropts rspec j t =
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showTransactionOneLineAmounts
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$ maybe id (transactionApplyValuation prices styles periodlast (_rsDay rspec)) (value_ ropts)
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$ maybe id (transactionToCost styles) (conversionop_ ropts) t
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-- (if real_ ropts then filterTransactionPostings (Real True) else id) -- filter postings by --real
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where
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prices = journalPriceOracle (infer_prices_ ropts) j
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styles = journalCommodityStyles j
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periodlast =
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fromMaybe (error' "TransactionScreen: expected a non-empty journal") $ -- PARTIAL: shouldn't happen
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reportPeriodOrJournalLastDay rspec j
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tsDraw :: UIState -> [Widget Name]
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tsDraw UIState{aopts=UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec@ReportSpec{_rsReportOpts=ropts}}}
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,ajournal=j
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,aScreen=TransactionScreen{tsTransaction=(i,t')
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,tsTransactions=nts
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,tsAccount=acct
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}
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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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maincontent = Widget Greedy Greedy $ render $ defaultLayout toplabel bottomlabel txneditor
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where
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-- as with print, show amounts with all of their decimal places
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t = transactionMapPostingAmounts mixedAmountSetFullPrecision t'
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-- XXX would like to shrink the editor to the size of the entry,
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-- so handler can more easily detect clicks below it
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txneditor =
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renderEditor (vBox . map txt) False $
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editorText TransactionEditor Nothing $
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showTxn ropts rspec j t
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toplabel =
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str "Transaction "
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-- <+> withAttr ("border" <> "bold") (str $ "#" ++ show (tindex t))
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-- <+> str (" ("++show i++" of "++show (length nts)++" in "++acct++")")
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<+> (str $ "#" ++ show (tindex t))
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<+> str " ("
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<+> withAttr ("border" <> "bold") (str $ show i)
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<+> str (" of "++show (length nts))
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<+> togglefilters
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<+> borderQueryStr (unwords . map (quoteIfNeeded . T.unpack) $ querystring_ ropts)
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<+> str (" in "++T.unpack (replaceHiddenAccountsNameWith "All" acct)++")")
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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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bottomlabel = quickhelp
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-- case mode of
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-- Minibuffer ed -> minibuffer ed
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-- _ -> quickhelp
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where
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quickhelp = borderKeysStr [
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("?", "help")
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,("LEFT", "back")
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,("UP/DOWN", "prev/next")
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--,("ESC", "cancel/top")
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-- ,("a", "add")
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,("E", "editor")
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,("g", "reload")
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,("q", "quit")
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]
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tsDraw _ = error "draw function called with wrong screen type, should not happen" -- PARTIAL:
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tsHandle :: UIState -> BrickEvent Name AppEvent -> EventM Name (Next UIState)
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tsHandle ui@UIState{aScreen=TransactionScreen{tsTransaction=(i,t), tsTransactions=nts}
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,aopts=UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec@ReportSpec{_rsReportOpts=ropts}}}
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,ajournal=j
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,aMode=mode
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}
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ev =
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case mode of
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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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_ -> do
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let
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d = copts^.rsDay
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(iprev,tprev) = maybe (i,t) ((i-1),) $ lookup (i-1) nts
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(inext,tnext) = maybe (i,t) ((i+1),) $ lookup (i+1) nts
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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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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 tsourcepos t of
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(SourcePos f l1 c1,_) -> (Just (unPos l1, Just $ unPos c1),f)
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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] -> do
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-- plog (if e == AppEvent FileChange then "file change" else "manual reload") "" `seq` return ()
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ej <- liftIO . runExceptT $ journalReload copts
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case ej of
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Left err -> continue $ screenEnter d errorScreen{esError=err} ui
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Right j' -> continue $ regenerateScreens j' d ui
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VtyEvent (EvKey (KChar 'I') []) -> continue $ uiCheckBalanceAssertions d (toggleIgnoreBalanceAssertions ui)
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-- for toggles that may change the current/prev/next transactions,
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-- we must regenerate the transaction list, like the g handler above ? with regenerateTransactions ? TODO WIP
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-- EvKey (KChar 'E') [] -> continue $ regenerateScreens j d $ stToggleEmpty ui
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-- EvKey (KChar 'C') [] -> continue $ regenerateScreens j d $ stToggleCleared ui
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-- EvKey (KChar 'R') [] -> continue $ regenerateScreens j d $ stToggleReal ui
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VtyEvent (EvKey (KChar 'B') []) -> continue . regenerateScreens j d $ toggleConversionOp ui
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VtyEvent (EvKey (KChar 'V') []) -> continue . regenerateScreens j d $ toggleValue ui
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VtyEvent e | e `elem` moveUpEvents -> continue $ tsSelect iprev tprev ui
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VtyEvent e | e `elem` moveDownEvents -> continue $ tsSelect inext tnext ui
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-- exit screen on LEFT
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VtyEvent e | e `elem` moveLeftEvents -> continue . popScreen $ tsSelect i t ui -- Probably not necessary to tsSelect here, but it's safe.
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-- or on a click in the app's left margin.
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VtyEvent (EvMouseUp x _y (Just BLeft)) | x==0 -> continue . popScreen $ tsSelect i t ui
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-- or on clicking the blank area below the transaction.
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MouseUp _ (Just BLeft) Location{loc=(_,y)} | y+1 > numentrylines -> continue . popScreen $ tsSelect i t ui
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where numentrylines = length (T.lines $ showTxn ropts rspec j t) - 1
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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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_ -> continue ui
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tsHandle _ _ = error "event handler called with wrong screen type, should not happen" -- PARTIAL:
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-- | Select a new transaction and update the previous register screen
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tsSelect i t ui@UIState{aScreen=s@TransactionScreen{}} = case aPrevScreens ui of
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x:xs -> ui'{aPrevScreens=rsSelect i x : xs}
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[] -> ui'
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where ui' = ui{aScreen=s{tsTransaction=(i,t)}}
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tsSelect _ _ ui = ui
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-- | Select the nth item on the register screen.
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rsSelect i scr@RegisterScreen{..} = scr{rsList=listMoveTo (fromInteger $ i-1) rsList}
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rsSelect _ scr = scr
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