85 lines
3.7 KiB
Haskell
85 lines
3.7 KiB
Haskell
{-|
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Various options to use when reading journal files.
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Similar to CliOptions.inputflags, simplifies the journal-reading functions.
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-}
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{-# LANGUAGE TemplateHaskell #-}
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module Hledger.Read.InputOptions (
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-- * Types and helpers for input options
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InputOpts(..)
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, HasInputOpts(..)
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, definputopts
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, forecastPeriod
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) where
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import Control.Applicative ((<|>))
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import Data.Time (Day, addDays)
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import Hledger.Data.Types
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import Hledger.Data.Transaction (BalancingOpts(..), HasBalancingOpts(..), defbalancingopts)
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import Hledger.Data.Journal (journalEndDate)
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import Hledger.Data.Dates (nulldatespan)
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import Hledger.Utils (dbg2, makeHledgerClassyLenses)
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data InputOpts = InputOpts {
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-- files_ :: [FilePath]
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mformat_ :: Maybe StorageFormat -- ^ a file/storage format to try, unless overridden
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-- by a filename prefix. Nothing means try all.
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,mrules_file_ :: Maybe FilePath -- ^ a conversion rules file to use (when reading CSV)
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,aliases_ :: [String] -- ^ account name aliases to apply
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,anon_ :: Bool -- ^ do light anonymisation/obfuscation of the data
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,new_ :: Bool -- ^ read only new transactions since this file was last read
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,new_save_ :: Bool -- ^ save latest new transactions state for next time
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,pivot_ :: String -- ^ use the given field's value as the account name
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,forecast_ :: Maybe DateSpan -- ^ span in which to generate forecast transactions
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,reportspan_ :: DateSpan -- ^ a dirty hack keeping the query dates in InputOpts. This rightfully lives in ReportSpec, but is duplicated here.
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,auto_ :: Bool -- ^ generate automatic postings when journal is parsed
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,balancingopts_ :: BalancingOpts -- ^ options for balancing transactions
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,strict_ :: Bool -- ^ do extra error checking (eg, all posted accounts are declared, no prices are inferred)
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} deriving (Show)
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definputopts :: InputOpts
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definputopts = InputOpts
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{ mformat_ = Nothing
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, mrules_file_ = Nothing
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, aliases_ = []
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, anon_ = False
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, new_ = False
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, new_save_ = True
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, pivot_ = ""
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, forecast_ = Nothing
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, reportspan_ = nulldatespan
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, auto_ = False
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, balancingopts_ = defbalancingopts
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, strict_ = False
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}
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-- | Get the Maybe the DateSpan to generate forecast options from.
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-- This begins on:
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-- - the start date supplied to the `--forecast` argument, if present
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-- - otherwise, the later of
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-- - the report start date if specified with -b/-p/date:
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-- - the day after the latest normal (non-periodic) transaction in the journal, if any
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-- - otherwise today.
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-- It ends on:
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-- - the end date supplied to the `--forecast` argument, if present
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-- - otherwise the report end date if specified with -e/-p/date:
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-- - otherwise 180 days (6 months) from today.
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forecastPeriod :: Day -> InputOpts -> Journal -> Maybe DateSpan
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forecastPeriod d iopts j = do
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DateSpan requestedStart requestedEnd <- forecast_ iopts
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let forecastStart = requestedStart <|> max mjournalend reportStart <|> Just d
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forecastEnd = requestedEnd <|> reportEnd <|> Just (addDays 180 d)
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mjournalend = dbg2 "journalEndDate" $ journalEndDate False j -- ignore secondary dates
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DateSpan reportStart reportEnd = reportspan_ iopts
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return . dbg2 "forecastspan" $ DateSpan forecastStart forecastEnd
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-- ** Lenses
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makeHledgerClassyLenses ''InputOpts
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instance HasBalancingOpts InputOpts where
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balancingOpts = balancingopts
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