360 lines
17 KiB
Haskell
360 lines
17 KiB
Haskell
{- |
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-}
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{-# LANGUAGE CPP #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE ScopedTypeVariables #-}
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module Hledger.Reports.BudgetReport
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where
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import Data.Decimal
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import Data.List
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import Data.Maybe
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#if !(MIN_VERSION_base(4,11,0))
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import Data.Monoid ((<>))
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#endif
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import Data.Ord
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import Data.Time.Calendar
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import Safe
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--import Data.List
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--import Data.Maybe
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import qualified Data.Map as Map
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import Data.Map (Map)
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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 System.Console.CmdArgs.Explicit as C
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--import Lucid as L
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import Text.Printf (printf)
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import Text.Tabular as T
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--import Text.Tabular.AsciiWide
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import Hledger.Data
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--import Hledger.Query
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import Hledger.Utils
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--import Hledger.Read (mamountp')
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import Hledger.Reports.ReportOptions
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import Hledger.Reports.ReportTypes
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import Hledger.Reports.MultiBalanceReports
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--type MultiBalanceReportRow = (AccountName, AccountName, Int, [MixedAmount], MixedAmount, MixedAmount)
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--type MultiBalanceReportTotals = ([MixedAmount], MixedAmount, MixedAmount) -- (Totals list, sum of totals, average of totals)
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--type PeriodicReportRow a =
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-- ( AccountName -- ^ A full account name.
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-- , [a] -- ^ The data value for each subperiod.
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-- , a -- ^ The total of this row's values.
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-- , a -- ^ The average of this row's values.
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-- )
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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 BudgetReport = PeriodicReport (Maybe Change, Maybe BudgetGoal)
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-- | Calculate budget goals from all periodic transactions,
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-- actual balance changes from the regular transactions,
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-- and compare these to get a 'BudgetReport'.
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-- Unbudgeted accounts may be hidden or renamed (see budgetRollup).
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budgetReport :: ReportOpts -> Bool -> Bool -> DateSpan -> Day -> Journal -> BudgetReport
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budgetReport ropts assrt showunbudgeted reportspan d j =
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let
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q = queryFromOpts d ropts
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budgetedaccts =
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dbg2 "budgetedacctsinperiod" $
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accountNamesFromPostings $
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concatMap tpostings $
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concatMap (flip runPeriodicTransaction reportspan) $
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jperiodictxns j
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actualj = dbg1 "actualj" $ budgetRollUp budgetedaccts showunbudgeted j
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budgetj = dbg1 "budgetj" $ budgetJournal assrt ropts reportspan j
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actualreport@(MultiBalanceReport (actualspans, _, _)) = dbg1 "actualreport" $ multiBalanceReport ropts q actualj
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budgetgoalreport@(MultiBalanceReport (_, budgetgoalitems, budgetgoaltotals)) = dbg1 "budgetgoalreport" $ multiBalanceReport ropts q 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 = MultiBalanceReport (actualspans, budgetgoalitems, budgetgoaltotals)
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| otherwise = budgetgoalreport
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in
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dbg1 "budgetreport" $ combineBudgetAndActual budgetgoalreport' actualreport
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-- | Use all periodic transactions in the journal to generate
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-- budget transactions in the specified report period.
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-- Budget transactions are similar to forecast transactions except
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-- their purpose is to set goal amounts (of change) per account and period.
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budgetJournal :: Bool -> ReportOpts -> DateSpan -> Journal -> Journal
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budgetJournal assrt _ropts reportspan j =
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either error' id $ journalBalanceTransactions assrt j{ jtxns = budgetts }
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where
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budgetspan = dbg2 "budgetspan" $ reportspan
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budgetts =
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dbg1 "budgetts" $
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[makeBudgetTxn t
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| pt <- jperiodictxns j
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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 --show-unbudgeted.
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--
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budgetRollUp :: [AccountName] -> Bool -> Journal -> Journal
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budgetRollUp budgetedaccts showunbudgeted j = j { jtxns = remapTxn <$> jtxns j }
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where
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remapTxn = mapPostings (map remapPosting)
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where
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mapPostings f t = txnTieKnot $ t { tpostings = f $ tpostings t }
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remapPosting p = p { paccount = remapAccount $ paccount p, porigin = Just . fromMaybe p $ porigin p }
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where
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remapAccount a
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| hasbudget = a
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| hasbudgetedparent = if showunbudgeted then a else budgetedparent
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| otherwise = if showunbudgeted then u <> acctsep <> a else u
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where
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hasbudget = a `elem` budgetedaccts
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hasbudgetedparent = not $ T.null budgetedparent
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budgetedparent = headDef "" $ filter (`elem` 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 :: MultiBalanceReport -> MultiBalanceReport -> BudgetReport
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combineBudgetAndActual
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(MultiBalanceReport (budgetperiods, budgetrows, (budgettots, budgetgrandtot, budgetgrandavg)))
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(MultiBalanceReport (actualperiods, actualrows, (actualtots, actualgrandtot, actualgrandavg))) =
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let
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periods = nub $ sort $ 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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[ (acct, treeacct, treeindent, amtandgoals, totamtandgoal, avgamtandgoal)
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| (acct, treeacct, treeindent, actualamts, actualtot, actualavg) <- actualrows
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, let mbudgetgoals = Map.lookup acct budgetGoalsByAcct :: Maybe ([BudgetGoal], BudgetTotal, BudgetAverage)
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, let budgetmamts = maybe (replicate (length periods) Nothing) (map Just . first3) mbudgetgoals :: [Maybe BudgetGoal]
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, let mbudgettot = maybe Nothing (Just . second3) mbudgetgoals :: Maybe BudgetTotal
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, let mbudgetavg = maybe Nothing (Just . 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 ] :: [(Maybe Change, Maybe BudgetGoal)]
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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 :: Map AccountName ([BudgetGoal], BudgetTotal, BudgetAverage) =
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Map.fromList [ (acct, (amts, tot, avg)) | (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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[ (acct, treeacct, treeindent, amtandgoals, totamtandgoal, avgamtandgoal)
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| (acct, treeacct, treeindent, budgetgoals, budgettot, budgetavg) <- budgetrows
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, not $ acct `elem` acctsdone
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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 ] :: [(Maybe Change, Maybe BudgetGoal)]
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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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where
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acctsdone = map first6 rows1
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-- combine and re-sort rows
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-- TODO: respect hierarchy in tree mode
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-- TODO: respect --sort-amount
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-- TODO: add --sort-budget to sort by budget goal amount
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rows :: [PeriodicReportRow (Maybe Change, Maybe BudgetGoal)] =
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sortBy (comparing first6) $ rows1 ++ rows2
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-- massive duplication from multiBalanceReport to handle tree mode sorting ?
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-- dbg1 "sorteditems" $
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-- sortitems items
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-- where
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-- sortitems
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-- | sort_amount_ opts && accountlistmode_ opts == ALTree = sortTreeMultiBalanceReportRowsByAmount
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-- | sort_amount_ opts = sortFlatMultiBalanceReportRowsByAmount
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-- | not (sort_amount_ opts) && accountlistmode_ opts == ALTree = sortTreeMultiBalanceReportRowsByAccountCodeAndName
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-- | otherwise = sortFlatMultiBalanceReportRowsByAccountCodeAndName
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-- where
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-- -- Sort the report rows, representing a flat account list, by row total.
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-- sortFlatMultiBalanceReportRowsByAmount = sortBy (maybeflip $ comparing fifth6)
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-- where
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-- maybeflip = if normalbalance_ opts == Just NormallyNegative then id else flip
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--
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-- -- Sort the report rows, representing a tree of accounts, by row total at each level.
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-- -- To do this we recreate an Account tree with the row totals as balances,
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-- -- so we can do a hierarchical sort, flatten again, and then reorder the
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-- -- report rows similarly. Yes this is pretty long winded.
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-- sortTreeMultiBalanceReportRowsByAmount rows = sortedrows
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-- where
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-- anamesandrows = [(first6 r, r) | r <- rows]
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-- anames = map fst anamesandrows
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-- atotals = [(a,tot) | (a,_,_,_,tot,_) <- rows]
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-- nametree = treeFromPaths $ map expandAccountName anames
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-- accounttree = nameTreeToAccount "root" nametree
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-- accounttreewithbals = mapAccounts setibalance accounttree
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-- where
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-- -- this error should not happen, but it's ugly TODO
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-- setibalance a = a{aibalance=fromMaybe (error "sortTreeMultiBalanceReportRowsByAmount 1") $ lookup (aname a) atotals}
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-- sortedaccounttree = sortAccountTreeByAmount (fromMaybe NormallyPositive $ normalbalance_ opts) accounttreewithbals
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-- sortedaccounts = drop 1 $ flattenAccounts sortedaccounttree
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-- -- dropped the root account, also ignore any parent accounts not in rows
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-- sortedrows = concatMap (\a -> maybe [] (:[]) $ lookup (aname a) anamesandrows) sortedaccounts
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--
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-- -- Sort the report rows by account code if any, with the empty account code coming last, then account name.
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-- sortFlatMultiBalanceReportRowsByAccountCodeAndName = sortBy (comparing acodeandname)
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-- where
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-- acodeandname r = (acode', aname)
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-- where
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-- aname = first6 r
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-- macode = fromMaybe Nothing $ lookup aname $ jaccounts j
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-- acode' = fromMaybe maxBound macode
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--
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-- -- Sort the report rows, representing a tree of accounts, by account code and then account name at each level.
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-- -- Convert a tree of account names, look up the account codes, sort and flatten the tree, reorder the rows.
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-- sortTreeMultiBalanceReportRowsByAccountCodeAndName rows = sortedrows
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-- where
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-- anamesandrows = [(first6 r, r) | r <- rows]
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-- anames = map fst anamesandrows
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-- nametree = treeFromPaths $ map expandAccountName anames
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-- accounttree = nameTreeToAccount "root" nametree
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-- accounttreewithcodes = mapAccounts (accountSetCodeFrom j) accounttree
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-- sortedaccounttree = sortAccountTreeByAccountCodeAndName accounttreewithcodes
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-- sortedaccounts = drop 1 $ flattenAccounts sortedaccounttree
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-- -- dropped the root account, also ignore any parent accounts not in rows
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-- sortedrows = concatMap (\a -> maybe [] (:[]) $ lookup (aname a) anamesandrows) sortedaccounts
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--
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-- TODO: grand total & average shows 0% when there are no actual amounts, inconsistent with other cells
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totalrow =
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( ""
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, ""
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, 0
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, [ (Map.lookup p totActualByPeriod, Map.lookup p totBudgetByPeriod) | p <- periods ] :: [(Maybe Total, Maybe BudgetTotal)]
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, ( Just actualgrandtot, Just budgetgrandtot ) :: (Maybe Total, Maybe BudgetTotal)
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, ( Just actualgrandavg, Just budgetgrandavg ) :: (Maybe Total, Maybe BudgetTotal)
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)
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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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in
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PeriodicReport
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( periods
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, rows
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, totalrow
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)
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-- | Figure out the overall period of a BudgetReport.
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budgetReportSpan :: BudgetReport -> DateSpan
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budgetReportSpan (PeriodicReport ([], _, _)) = DateSpan Nothing Nothing
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budgetReportSpan (PeriodicReport (spans, _, _)) = DateSpan (spanStart $ head spans) (spanEnd $ last spans)
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-- | Render a budget report as plain text suitable for console output.
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budgetReportAsText :: ReportOpts -> BudgetReport -> String
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budgetReportAsText ropts budgetr =
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printf "Budget performance in %s:\n\n" (showDateSpan $ budgetReportSpan budgetr)
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++
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tableAsText ropts showcell (budgetReportAsTable ropts budgetr)
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where
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-- XXX lay out actual, percentage and/or goal in the single table cell for now, should probably use separate cells
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showcell :: (Maybe Change, Maybe BudgetGoal) -> String
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showcell (mactual, mbudget) = actualstr ++ " " ++ budgetstr
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where
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actualwidth = 7
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percentwidth = 4
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budgetwidth = 5
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actual = fromMaybe 0 mactual
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actualstr = printf ("%"++show actualwidth++"s") (showamt actual)
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budgetstr = case mbudget of
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Nothing -> replicate (percentwidth + 7 + budgetwidth) ' '
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Just budget ->
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case percentage actual budget of
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Just pct ->
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printf ("[%"++show percentwidth++"s%% of %"++show budgetwidth++"s]")
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(show $ roundTo 0 pct) (showbudgetamt budget)
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Nothing ->
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printf ("["++replicate (percentwidth+5) ' '++"%"++show budgetwidth++"s]")
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(showbudgetamt budget)
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-- | Calculate the percentage of actual change to budget goal to show, if any.
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-- Both amounts are converted to cost, if possible, 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 (toCost actual, toCost budget) of
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(Mixed [a], Mixed [b]) | (acommodity a == acommodity b || isZeroAmount a) && not (isZeroAmount b)
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-> Just $ 100 * aquantity a / aquantity b
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_ -> Nothing
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where
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toCost = normaliseMixedAmount . costOfMixedAmount
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showamt :: MixedAmount -> String
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showamt | color_ ropts = cshowMixedAmountOneLineWithoutPrice
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| otherwise = showMixedAmountOneLineWithoutPrice
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-- don't show the budget amount in color, it messes up alignment
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showbudgetamt = showMixedAmountOneLineWithoutPrice
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-- | Build a 'Table' from a multi-column balance report.
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budgetReportAsTable :: ReportOpts -> BudgetReport -> Table String String (Maybe MixedAmount, Maybe MixedAmount)
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budgetReportAsTable
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ropts
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(PeriodicReport
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( periods
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, rows
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, (_, _, _, coltots, grandtot, grandavg)
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)) =
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addtotalrow $
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Table
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(T.Group NoLine $ map Header accts)
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(T.Group NoLine $ map Header colheadings)
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(map rowvals rows)
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where
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colheadings = map showDateSpanMonthAbbrev periods
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++ (if row_total_ ropts then [" Total"] else [])
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++ (if average_ ropts then ["Average"] else [])
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accts = map renderacct rows
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renderacct (a,a',i,_,_,_)
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| tree_ ropts = replicate ((i-1)*2) ' ' ++ T.unpack a'
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| otherwise = T.unpack $ maybeAccountNameDrop ropts a
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rowvals (_,_,_,as,rowtot,rowavg) = as
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++ (if row_total_ ropts then [rowtot] else [])
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++ (if average_ ropts then [rowavg] else [])
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addtotalrow | no_total_ ropts = id
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| otherwise = (+----+ (row "" $
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coltots
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++ (if row_total_ ropts && not (null coltots) then [grandtot] else [])
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++ (if average_ ropts && not (null coltots) then [grandavg] else [])
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))
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-- XXX here for now
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-- | Drop leading components of accounts names as specified by --drop, but only in --flat mode.
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maybeAccountNameDrop :: ReportOpts -> AccountName -> AccountName
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maybeAccountNameDrop opts a | flat_ opts = accountNameDrop (drop_ opts) a
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| otherwise = a
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-- tests
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tests_BudgetReport = tests "BudgetReport" [
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]
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