1e766e481e
on Hledger.Read. This is done by using equivalent functions/types defined elsewhere instead.
450 lines
20 KiB
Haskell
450 lines
20 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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module Hledger.Reports.BudgetReport (
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BudgetGoal,
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BudgetTotal,
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BudgetAverage,
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BudgetCell,
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BudgetReportRow,
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BudgetReport,
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budgetReport,
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budgetReportAsTable,
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budgetReportAsText,
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budgetReportAsCsv,
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-- * Helpers
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combineBudgetAndActual,
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-- * Tests
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tests_BudgetReport
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)
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where
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import Control.Applicative ((<|>))
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import Control.Arrow ((***))
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import Data.Decimal (roundTo)
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import Data.Function (on)
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import Data.HashMap.Strict (HashMap)
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import qualified Data.HashMap.Strict as HM
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import Data.List (find, partition, transpose, foldl')
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import Data.List.Extra (nubSort)
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import Data.Maybe (fromMaybe, catMaybes)
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import Data.Map (Map)
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import qualified Data.Map as Map
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import qualified Data.Set as S
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import Data.Text (Text)
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import qualified Data.Text as T
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import qualified Data.Text.Lazy as TL
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import qualified Data.Text.Lazy.Builder as TB
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--import System.Console.CmdArgs.Explicit as C
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--import Lucid as L
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import Text.Tabular.AsciiWide as Tab
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import Hledger.Data
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import Hledger.Utils
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import Hledger.Reports.ReportOptions
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import Hledger.Reports.ReportTypes
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import Hledger.Reports.MultiBalanceReport
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type BudgetGoal = Change
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type BudgetTotal = Total
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type BudgetAverage = Average
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-- | A budget report tracks expected and actual changes per account and subperiod.
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type BudgetCell = (Maybe Change, Maybe BudgetGoal)
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type BudgetReportRow = PeriodicReportRow DisplayName BudgetCell
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type BudgetReport = PeriodicReport DisplayName BudgetCell
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type BudgetDisplayCell = (WideBuilder, Maybe (WideBuilder, Maybe WideBuilder))
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type BudgetDisplayRow = [BudgetDisplayCell]
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type BudgetShowMixed = MixedAmount -> [WideBuilder]
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type BudgetPercBudget = Change -> BudgetGoal -> [Maybe Percentage]
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-- | Calculate per-account, per-period budget (balance change) goals
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-- from all periodic transactions, calculate actual balance changes
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-- from the regular transactions, and compare these to get a 'BudgetReport'.
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-- Unbudgeted accounts may be hidden or renamed (see journalWithBudgetAccountNames).
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budgetReport :: ReportSpec -> BalancingOpts -> DateSpan -> Journal -> BudgetReport
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budgetReport rspec bopts reportspan j = dbg4 "sortedbudgetreport" budgetreport
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where
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-- Budget report demands ALTree mode to ensure subaccounts and subaccount budgets are properly handled
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-- and that reports with and without --empty make sense when compared side by side
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ropts = (_rsReportOpts rspec){ accountlistmode_ = ALTree }
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showunbudgeted = empty_ ropts
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budgetedaccts =
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dbg3 "budgetedacctsinperiod" $
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S.fromList $
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expandAccountNames $
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accountNamesFromPostings $
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concatMap tpostings $
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concatMap (`runPeriodicTransaction` reportspan) $
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jperiodictxns j
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actualj = journalWithBudgetAccountNames budgetedaccts showunbudgeted j
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budgetj = journalAddBudgetGoalTransactions bopts ropts reportspan j
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actualreport@(PeriodicReport actualspans _ _) =
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dbg5 "actualreport" $ multiBalanceReport rspec{_rsReportOpts=ropts{empty_=True}} actualj
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budgetgoalreport@(PeriodicReport _ budgetgoalitems budgetgoaltotals) =
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dbg5 "budgetgoalreport" $ multiBalanceReport rspec{_rsReportOpts=ropts{empty_=True}} budgetj
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budgetgoalreport'
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-- If no interval is specified:
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-- budgetgoalreport's span might be shorter actualreport's due to periodic txns;
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-- it should be safe to replace it with the latter, so they combine well.
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| interval_ ropts == NoInterval = PeriodicReport actualspans budgetgoalitems budgetgoaltotals
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| otherwise = budgetgoalreport
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budgetreport = combineBudgetAndActual ropts j budgetgoalreport' actualreport
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-- | Use all periodic transactions in the journal to generate
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-- budget goal transactions in the specified date span.
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-- Budget goal transactions are similar to forecast transactions except
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-- their purpose and effect is to define balance change goals, per account and period,
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-- for BudgetReport.
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journalAddBudgetGoalTransactions :: BalancingOpts -> ReportOpts -> DateSpan -> Journal -> Journal
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journalAddBudgetGoalTransactions bopts ropts reportspan j =
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either error' id $ journalBalanceTransactions bopts j{ jtxns = budgetts } -- PARTIAL:
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where
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budgetspan = dbg3 "budget span" $ reportspan
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pat = fromMaybe "" $ dbg3 "budget pattern" $ T.toLower <$> budgetpat_ ropts
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-- select periodic transactions matching a pattern
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-- (the argument of the (final) --budget option).
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-- XXX two limitations/wishes, requiring more extensive type changes:
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-- - give an error if pat is non-null and matches no periodic txns
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-- - allow a regexp or a full hledger query, not just a substring
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budgetts =
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dbg5 "budget goal txns" $
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[makeBudgetTxn t
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| pt <- jperiodictxns j
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, pat `T.isInfixOf` T.toLower (ptdescription pt)
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, t <- runPeriodicTransaction pt budgetspan
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]
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makeBudgetTxn t = txnTieKnot $ t { tdescription = T.pack "Budget transaction" }
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-- | Adjust a journal's account names for budget reporting, in two ways:
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--
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-- 1. accounts with no budget goal anywhere in their ancestry are moved
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-- under the "unbudgeted" top level account.
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--
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-- 2. subaccounts with no budget goal are merged with their closest parent account
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-- with a budget goal, so that only budgeted accounts are shown.
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-- This can be disabled by -E/--empty.
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--
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journalWithBudgetAccountNames :: S.Set AccountName -> Bool -> Journal -> Journal
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journalWithBudgetAccountNames budgetedaccts showunbudgeted j =
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dbg5With (("budget account names: "++).pshow.journalAccountNamesUsed) $
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j { jtxns = remapTxn <$> jtxns j }
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where
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remapTxn = txnTieKnot . transactionTransformPostings remapPosting
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remapPosting p = p { paccount = remapAccount $ paccount p, poriginal = poriginal p <|> Just p }
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remapAccount a
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| a `S.member` budgetedaccts = a
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| Just p <- budgetedparent = if showunbudgeted then a else p
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| otherwise = if showunbudgeted then u <> acctsep <> a else u
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where
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budgetedparent = find (`S.member` budgetedaccts) $ parentAccountNames a
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u = unbudgetedAccountName
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-- | Combine a per-account-and-subperiod report of budget goals, and one
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-- of actual change amounts, into a budget performance report.
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-- The two reports should have the same report interval, but need not
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-- have exactly the same account rows or date columns.
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-- (Cells in the combined budget report can be missing a budget goal,
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-- an actual amount, or both.) The combined report will include:
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--
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-- - consecutive subperiods at the same interval as the two reports,
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-- spanning the period of both reports
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--
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-- - all accounts mentioned in either report, sorted by account code or
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-- account name or amount as appropriate.
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--
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combineBudgetAndActual :: ReportOpts -> Journal -> MultiBalanceReport -> MultiBalanceReport -> BudgetReport
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combineBudgetAndActual ropts j
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(PeriodicReport budgetperiods budgetrows (PeriodicReportRow _ budgettots budgetgrandtot budgetgrandavg))
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(PeriodicReport actualperiods actualrows (PeriodicReportRow _ actualtots actualgrandtot actualgrandavg)) =
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PeriodicReport periods sortedrows totalrow
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where
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periods = nubSort . filter (/= nulldatespan) $ budgetperiods ++ actualperiods
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-- first, combine any corresponding budget goals with actual changes
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rows1 =
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[ PeriodicReportRow acct amtandgoals totamtandgoal avgamtandgoal
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| PeriodicReportRow acct actualamts actualtot actualavg <- actualrows
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, let mbudgetgoals = HM.lookup (displayFull acct) budgetGoalsByAcct :: Maybe ([BudgetGoal], BudgetTotal, BudgetAverage)
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, let budgetmamts = maybe (Nothing <$ periods) (map Just . first3) mbudgetgoals :: [Maybe BudgetGoal]
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, let mbudgettot = second3 <$> mbudgetgoals :: Maybe BudgetTotal
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, let mbudgetavg = third3 <$> mbudgetgoals :: Maybe BudgetAverage
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, let acctBudgetByPeriod = Map.fromList [ (p,budgetamt) | (p, Just budgetamt) <- zip budgetperiods budgetmamts ] :: Map DateSpan BudgetGoal
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, let acctActualByPeriod = Map.fromList [ (p,actualamt) | (p, Just actualamt) <- zip actualperiods (map Just actualamts) ] :: Map DateSpan Change
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, let amtandgoals = [ (Map.lookup p acctActualByPeriod, Map.lookup p acctBudgetByPeriod) | p <- periods ] :: [BudgetCell]
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, let totamtandgoal = (Just actualtot, mbudgettot)
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, let avgamtandgoal = (Just actualavg, mbudgetavg)
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]
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where
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budgetGoalsByAcct :: HashMap AccountName ([BudgetGoal], BudgetTotal, BudgetAverage) =
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HM.fromList [ (displayFull acct, (amts, tot, avg))
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| PeriodicReportRow acct amts tot avg <- budgetrows ]
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-- next, make rows for budget goals with no actual changes
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rows2 =
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[ PeriodicReportRow acct amtandgoals totamtandgoal avgamtandgoal
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| PeriodicReportRow acct budgetgoals budgettot budgetavg <- budgetrows
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, displayFull acct `notElem` map prrFullName rows1
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, let acctBudgetByPeriod = Map.fromList $ zip budgetperiods budgetgoals :: Map DateSpan BudgetGoal
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, let amtandgoals = [ (Nothing, Map.lookup p acctBudgetByPeriod) | p <- periods ] :: [BudgetCell]
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, let totamtandgoal = (Nothing, Just budgettot)
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, let avgamtandgoal = (Nothing, Just budgetavg)
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]
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-- combine and re-sort rows
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-- TODO: add --sort-budget to sort by budget goal amount
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sortedrows :: [BudgetReportRow] = sortRowsLike (mbrsorted unbudgetedrows ++ mbrsorted rows') rows
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where
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(unbudgetedrows, rows') = partition ((==unbudgetedAccountName) . prrFullName) rows
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mbrsorted = map prrFullName . sortRows ropts j . map (fmap $ fromMaybe nullmixedamt . fst)
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rows = rows1 ++ rows2
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totalrow = PeriodicReportRow ()
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[ (Map.lookup p totActualByPeriod, Map.lookup p totBudgetByPeriod) | p <- periods ]
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( Just actualgrandtot, budget budgetgrandtot )
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( Just actualgrandavg, budget budgetgrandavg )
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where
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totBudgetByPeriod = Map.fromList $ zip budgetperiods budgettots :: Map DateSpan BudgetTotal
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totActualByPeriod = Map.fromList $ zip actualperiods actualtots :: Map DateSpan Change
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budget b = if mixedAmountLooksZero b then Nothing else Just b
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-- | Render a budget report as plain text suitable for console output.
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budgetReportAsText :: ReportOpts -> BudgetReport -> TL.Text
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budgetReportAsText ropts@ReportOpts{..} budgetr = TB.toLazyText $
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TB.fromText title <> TB.fromText "\n\n" <>
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balanceReportTableAsText ropts (budgetReportAsTable ropts budgetr)
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where
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title = "Budget performance in " <> showDateSpan (periodicReportSpan budgetr)
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<> (case cost_ of
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Cost -> ", converted to cost"
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NoCost -> "")
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<> (case value_ of
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Just (AtThen _mc) -> ", valued at posting date"
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Just (AtEnd _mc) -> ", valued at period ends"
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Just (AtNow _mc) -> ", current value"
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Just (AtDate d _mc) -> ", valued at " <> showDate d
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Nothing -> "")
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<> ":"
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-- | Build a 'Table' from a multi-column balance report.
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budgetReportAsTable :: ReportOpts -> BudgetReport -> Table Text Text WideBuilder
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budgetReportAsTable
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ReportOpts{..}
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(PeriodicReport spans items tr) =
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maybetransposetable $
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addtotalrow $
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Table
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(Tab.Group NoLine $ map Header accts)
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(Tab.Group NoLine $ map Header colheadings)
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rows
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where
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colheadings = ["Commodity" | commodity_column_]
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++ map (reportPeriodName balanceaccum_ spans) spans
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++ [" Total" | row_total_]
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++ ["Average" | average_]
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-- FIXME. Have to check explicitly for which to render here, since
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-- budgetReport sets accountlistmode to ALTree. Find a principled way to do
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-- this.
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renderacct row = case accountlistmode_ of
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ALTree -> T.replicate ((prrDepth row - 1)*2) " " <> prrDisplayName row
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ALFlat -> accountNameDrop (drop_) $ prrFullName row
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addtotalrow
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| no_total_ = id
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| otherwise = let rh = Tab.Group NoLine . replicate (length totalrows) $ Header ""
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ch = Header [] -- ignored
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in (flip (concatTables SingleLine) $ Table rh ch totalrows)
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maybetranspose
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| transpose_ = transpose
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| otherwise = id
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maybetransposetable
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| transpose_ = \(Table rh ch vals) -> Table ch rh (transpose vals)
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| otherwise = id
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(accts, rows, totalrows) = (accts, prependcs itemscs (padcells texts), prependcs trcs (padtr trtexts))
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where
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shownitems :: [[(AccountName, WideBuilder, BudgetDisplayRow)]]
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shownitems = (fmap (\i -> fmap (\(cs, cvals) -> (renderacct i, cs, cvals)) . showrow $ rowToBudgetCells i) items)
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(accts, itemscs, texts) = unzip3 $ concat shownitems
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showntr :: [[(WideBuilder, BudgetDisplayRow)]]
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showntr = [showrow $ rowToBudgetCells tr]
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(trcs, trtexts) = unzip $ concat showntr
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trwidths
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| transpose_ = drop (length texts) widths
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| otherwise = widths
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padcells = maybetranspose . fmap (fmap (uncurry paddisplaycell) . zip widths) . maybetranspose
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padtr = maybetranspose . fmap (fmap (uncurry paddisplaycell) . zip trwidths) . maybetranspose
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-- commodities are shown with the amounts without `commodity-column`
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prependcs cs
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| commodity_column_ = zipWith (:) cs
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| otherwise = id
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rowToBudgetCells (PeriodicReportRow _ as rowtot rowavg) = as
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++ [rowtot | row_total_ && not (null as)]
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++ [rowavg | average_ && not (null as)]
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-- functions for displaying budget cells depending on `commodity-column` flag
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rowfuncs :: [CommoditySymbol] -> (BudgetShowMixed, BudgetPercBudget)
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rowfuncs cs
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| not commodity_column_ =
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( pure . showMixedAmountB oneLine{displayColour=color_, displayMaxWidth=Just 32}
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, \a -> pure . percentage a)
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| otherwise =
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( showMixedAmountLinesB noPrice{displayOrder=Just cs, displayMinWidth=Nothing, displayColour=color_}
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, \a b -> fmap (percentage' a b) cs)
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showrow :: [BudgetCell] -> [(WideBuilder, BudgetDisplayRow)]
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showrow row =
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let cs = budgetCellsCommodities row
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(showmixed, percbudget) = rowfuncs cs
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in zip (fmap wbFromText cs)
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. transpose
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. fmap (showcell showmixed percbudget)
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$ row
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budgetCellsCommodities = S.toList . foldl' S.union mempty . fmap budgetCellCommodities
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budgetCellCommodities :: BudgetCell -> S.Set CommoditySymbol
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budgetCellCommodities (am, bm) = f am `S.union` f bm
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where f = maybe mempty maCommodities
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cellswidth :: [BudgetCell] -> [[(Int, Int, Int)]]
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cellswidth row =
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let cs = budgetCellsCommodities row
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(showmixed, percbudget) = rowfuncs cs
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disp = showcell showmixed percbudget
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budgetpercwidth = wbWidth *** maybe 0 wbWidth
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cellwidth (am, bm) = let (bw, pw) = maybe (0, 0) budgetpercwidth bm in (wbWidth am, bw, pw)
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in fmap (fmap cellwidth . disp) row
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-- build a list of widths for each column. In the case of transposed budget
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-- reports, the total 'row' must be included in this list
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widths = zip3 actualwidths budgetwidths percentwidths
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where
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actualwidths = map (maximum' . map first3 ) $ cols
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budgetwidths = map (maximum' . map second3) $ cols
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percentwidths = map (maximum' . map third3 ) $ cols
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catcolumnwidths = foldl' (zipWith (++)) $ repeat []
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cols = maybetranspose $ catcolumnwidths $ map (cellswidth . rowToBudgetCells) items ++ [cellswidth $ rowToBudgetCells tr]
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-- split a BudgetCell into BudgetDisplayCell's (one per commodity when applicable)
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showcell :: BudgetShowMixed -> BudgetPercBudget -> BudgetCell -> BudgetDisplayRow
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showcell showmixed percbudget (actual, mbudget) = zip (showmixed actual') full
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where
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actual' = fromMaybe nullmixedamt actual
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budgetAndPerc b = uncurry zip
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( showmixed b
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, fmap (wbFromText . T.pack . show . roundTo 0) <$> percbudget actual' b
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)
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full
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| Just b <- mbudget = Just <$> budgetAndPerc b
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| otherwise = repeat Nothing
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paddisplaycell :: (Int, Int, Int) -> BudgetDisplayCell -> WideBuilder
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paddisplaycell (actualwidth, budgetwidth, percentwidth) (actual, mbudget) = full
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where
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toPadded (WideBuilder b w) =
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(TB.fromText . flip T.replicate " " $ actualwidth - w) <> b
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(totalpercentwidth, totalbudgetwidth) =
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let totalpercentwidth = if percentwidth == 0 then 0 else percentwidth + 5
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in ( totalpercentwidth
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, if budgetwidth == 0 then 0 else budgetwidth + totalpercentwidth + 3
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)
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-- | Display a padded budget string
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budgetb (budget, perc) =
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let perct = case perc of
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Nothing -> T.replicate totalpercentwidth " "
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Just pct -> T.replicate (percentwidth - wbWidth pct) " " <> wbToText pct <> "% of "
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in TB.fromText $ " [" <> perct <> T.replicate (budgetwidth - wbWidth budget) " " <> wbToText budget <> "]"
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emptyBudget = TB.fromText $ T.replicate totalbudgetwidth " "
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full = flip WideBuilder (actualwidth + totalbudgetwidth) $
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toPadded actual <> maybe emptyBudget budgetb mbudget
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-- | Calculate the percentage of actual change to budget goal to show, if any.
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-- If valuing at cost, both amounts are converted to cost before comparing.
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-- A percentage will not be shown if:
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-- - actual or goal are not the same, single, commodity
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-- - the goal is zero
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percentage :: Change -> BudgetGoal -> Maybe Percentage
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percentage actual budget =
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case (costedAmounts actual, costedAmounts budget) of
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([a], [b]) | (acommodity a == acommodity b || amountLooksZero a) && not (amountLooksZero b)
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-> Just $ 100 * aquantity a / aquantity b
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_ -> -- trace (pshow $ (maybecost actual, maybecost budget)) -- debug missing percentage
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Nothing
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where
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costedAmounts = case cost_ of
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Cost -> amounts . mixedAmountCost
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NoCost -> amounts
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-- | Calculate the percentage of actual change to budget goal for a particular commodity
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percentage' :: Change -> BudgetGoal -> CommoditySymbol -> Maybe Percentage
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percentage' am bm c = case ((,) `on` find ((==) c . acommodity) . amounts) am bm of
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(Just a, Just b) -> percentage (mixedAmount a) (mixedAmount b)
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_ -> Nothing
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-- XXX generalise this with multiBalanceReportAsCsv ?
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-- | Render a budget report as CSV. Like multiBalanceReportAsCsv,
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-- but includes alternating actual and budget amount columns.
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budgetReportAsCsv :: ReportOpts -> BudgetReport -> [[Text]]
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budgetReportAsCsv
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ReportOpts{..}
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(PeriodicReport colspans items tr)
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= (if transpose_ then transpose else id) $
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-- heading row
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("Account" :
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["Commodity" | commodity_column_ ]
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++ concatMap (\span -> [showDateSpan span, "budget"]) colspans
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++ concat [["Total" ,"budget"] | row_total_]
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++ concat [["Average","budget"] | average_]
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) :
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-- account rows
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concatMap (rowAsTexts prrFullName) items
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|
|
|
-- totals row
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++ concat [ rowAsTexts (const "Total:") tr | not no_total_ ]
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|
|
|
where
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flattentuples abs = concat [[a,b] | (a,b) <- abs]
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|
showNorm = maybe "" (wbToText . showMixedAmountB oneLine)
|
|
|
|
rowAsTexts :: (PeriodicReportRow a BudgetCell -> Text)
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|
-> PeriodicReportRow a BudgetCell
|
|
-> [[Text]]
|
|
rowAsTexts render row@(PeriodicReportRow _ as (rowtot,budgettot) (rowavg, budgetavg))
|
|
| not commodity_column_ = [render row : fmap showNorm all]
|
|
| otherwise =
|
|
joinNames . zipWith (:) cs -- add symbols and names
|
|
. transpose -- each row becomes a list of Text quantities
|
|
. fmap (fmap wbToText . showMixedAmountLinesB oneLine{displayOrder=Just cs, displayMinWidth=Nothing}
|
|
.fromMaybe nullmixedamt)
|
|
$ all
|
|
where
|
|
cs = S.toList . foldl' S.union mempty . fmap maCommodities $ catMaybes all
|
|
all = flattentuples as
|
|
++ concat [[rowtot, budgettot] | row_total_]
|
|
++ concat [[rowavg, budgetavg] | average_]
|
|
|
|
joinNames = fmap (render row :)
|
|
|
|
-- tests
|
|
|
|
tests_BudgetReport = testGroup "BudgetReport" [
|
|
]
|