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[comptalang.git] / lib / Hcompta / Format / Ledger.hs
1 {-# LANGUAGE DeriveDataTypeable #-}
2 {-# LANGUAGE FlexibleInstances #-}
3 {-# LANGUAGE MultiParamTypeClasses #-}
4 {-# LANGUAGE NamedFieldPuns #-}
5 {-# LANGUAGE OverloadedStrings #-}
6 {-# LANGUAGE TupleSections #-}
7 {-# LANGUAGE TypeFamilies #-}
8 module Hcompta.Format.Ledger where
9
10 -- import Control.Applicative (Const(..))
11 import Data.Data (Data(..))
12 -- import qualified Data.Foldable as Data.Foldable
13 import Data.Functor.Compose (Compose(..))
14 import qualified Data.List
15 import Data.Map.Strict (Map)
16 import qualified Data.Map.Strict as Data.Map
17 import Data.Text (Text)
18 import Data.Typeable (Typeable)
19 import Text.Parsec.Pos (SourcePos, initialPos)
20
21 import Hcompta.Account (Account)
22 import Hcompta.Amount (Amount)
23 import qualified Hcompta.Amount as Amount
24 -- import Hcompta.Balance (Balance(..))
25 import qualified Hcompta.Balance as Balance
26 import Hcompta.Date (Date)
27 import qualified Hcompta.Date as Date
28 import qualified Hcompta.Filter as Filter
29 -- import Hcompta.Lib.Consable
30 import Hcompta.Lib.Parsec ()
31 -- import Hcompta.GL (GL(..))
32 import qualified Hcompta.GL as GL
33 import qualified Hcompta.Journal as Journal
34
35 type Code = Text
36 type Description = Text
37 type Status = Bool
38 type Comment = Text
39
40 -- * The 'Journal' type
41
42 data Monoid ts => Journal ts
43 = Journal
44 { journal_file :: FilePath
45 , journal_includes :: [Journal ts]
46 , journal_last_read_time :: Date
47 , journal_transactions :: !ts
48 , journal_unit_styles :: Map Amount.Unit Amount.Style
49 } deriving (Data, Eq, Show, Typeable)
50
51 journal :: Monoid ts => Journal ts
52 journal =
53 Journal
54 { journal_file = mempty
55 , journal_includes = mempty
56 , journal_last_read_time = Date.nil
57 , journal_transactions = mempty
58 , journal_unit_styles = mempty
59 }
60
61 -- * The 'Transaction' type
62
63 data Transaction
64 = Transaction
65 { transaction_code :: Code
66 , transaction_comments_before :: [Comment]
67 , transaction_comments_after :: [Comment]
68 , transaction_dates :: (Date, [Date])
69 , transaction_description :: Description
70 , transaction_postings :: Posting_by_Account
71 , transaction_virtual_postings :: Posting_by_Account
72 , transaction_balanced_virtual_postings :: Posting_by_Account
73 , transaction_sourcepos :: SourcePos
74 , transaction_status :: Status
75 , transaction_tags :: Tag_by_Name
76 } deriving (Data, Eq, Show, Typeable)
77
78 transaction :: Transaction
79 transaction =
80 Transaction
81 { transaction_code = ""
82 , transaction_comments_before = []
83 , transaction_comments_after = []
84 , transaction_dates = (Date.nil, [])
85 , transaction_description = ""
86 , transaction_postings = mempty
87 , transaction_virtual_postings = mempty
88 , transaction_balanced_virtual_postings = mempty
89 , transaction_sourcepos = initialPos ""
90 , transaction_status = False
91 , transaction_tags = mempty
92 }
93
94 instance Filter.Transaction Transaction where
95 type Transaction_Posting Transaction = Posting
96 type Transaction_Postings Transaction = Compose [] (Compose (Map Account) [])
97 transaction_date = fst . transaction_dates
98 transaction_description = transaction_description
99 transaction_postings t =
100 Compose
101 [ Compose $ transaction_postings t
102 , Compose $ transaction_virtual_postings t
103 , Compose $ transaction_balanced_virtual_postings t
104 ]
105 transaction_tags = transaction_tags
106
107 instance Journal.Transaction Transaction where
108 transaction_date = fst . transaction_dates
109
110 instance GL.Transaction Transaction where
111 type Transaction_Posting Transaction = Posting
112 type Transaction_Postings Transaction = Compose [] (Compose (Map Account) [])
113 transaction_date = fst . transaction_dates
114 transaction_postings t =
115 Compose
116 [ Compose $ transaction_postings t
117 , Compose $ transaction_virtual_postings t
118 , Compose $ transaction_balanced_virtual_postings t
119 ]
120 transaction_postings_filter f t =
121 t{ transaction_postings =
122 Data.Map.mapMaybe
123 (\p -> case filter f p of
124 [] -> Nothing
125 ps -> Just ps)
126 (transaction_postings t)
127 , transaction_virtual_postings =
128 Data.Map.mapMaybe
129 (\p -> case filter f p of
130 [] -> Nothing
131 ps -> Just ps)
132 (transaction_virtual_postings t)
133 , transaction_balanced_virtual_postings =
134 Data.Map.mapMaybe
135 (\p -> case filter f p of
136 [] -> Nothing
137 ps -> Just ps)
138 (transaction_balanced_virtual_postings t)
139 }
140
141 -- | Return a 'Data.Map.Map' associating
142 -- the given 'Transaction's with their respective 'Date'.
143 transaction_by_Date :: [Transaction] -> (Compose (Map Date) []) Transaction
144 transaction_by_Date =
145 Compose .
146 Data.Map.fromListWith (flip (++)) .
147 Data.List.map (\t -> (fst $ transaction_dates t, [t]))
148
149 -- * The 'Posting' type
150
151 data Posting
152 = Posting
153 { posting_account :: Account
154 , posting_amounts :: Map Amount.Unit Amount
155 , posting_comments :: [Comment]
156 , posting_dates :: [Date]
157 , posting_sourcepos :: SourcePos
158 , posting_status :: Bool
159 , posting_tags :: Tag_by_Name
160 } deriving (Data, Eq, Show, Typeable)
161
162 data Posting_Type
163 = Posting_Type_Regular
164 | Posting_Type_Virtual
165 | Posting_Type_Virtual_Balanced
166 deriving (Data, Eq, Read, Show, Typeable)
167
168 posting :: Account -> Posting
169 posting acct =
170 Posting
171 { posting_account = acct
172 , posting_amounts = mempty
173 , posting_comments = mempty
174 , posting_dates = mempty
175 , posting_status = False
176 , posting_sourcepos = initialPos ""
177 , posting_tags = mempty
178 }
179
180 instance
181 Balance.Posting Posting where
182 type Posting_Amount Posting = Amount.Sum Amount
183 posting_account = posting_account
184 posting_amounts = Data.Map.map Amount.sum . posting_amounts
185 posting_set_amounts amounts p =
186 p { posting_amounts=Data.Map.map Amount.sum_balance amounts }
187
188 instance Filter.Posting Posting where
189 type Posting_Amount Posting = Amount
190 posting_account = posting_account
191 posting_amounts = posting_amounts
192
193 instance GL.Posting Posting where
194 type Posting_Amount Posting = Amount.Sum (Map Amount.Unit Amount)
195 posting_account = posting_account
196 posting_amount = Amount.sum . posting_amounts
197
198 -- ** The 'Posting' mappings
199
200 type Posting_by_Account
201 = Map Account [Posting]
202
203 type Posting_by_Amount_and_Account
204 = Map Amount.By_Unit Posting_by_Account
205
206 type Posting_by_Signs_and_Account
207 = Map Amount.Signs Posting_by_Account
208
209 -- | Return a Data.'Data.Map.Map' associating the given 'Posting's with their respective 'Account'.
210 posting_by_Account :: [Posting] -> Posting_by_Account
211 posting_by_Account =
212 Data.Map.fromListWith (flip (++)) .
213 Data.List.map
214 (\p -> (posting_account p, [p]))
215
216 posting_by_Amount_and_Account :: Posting_by_Account -> Posting_by_Amount_and_Account
217 posting_by_Amount_and_Account =
218 Data.Map.foldlWithKey
219 (flip (\acct ->
220 Data.List.foldl'
221 (flip (\p ->
222 Data.Map.insertWith
223 (Data.Map.unionWith (++))
224 (posting_amounts p)
225 (Data.Map.singleton acct [p])))))
226 mempty
227
228 posting_by_Signs_and_Account :: Posting_by_Account -> Posting_by_Signs_and_Account
229 posting_by_Signs_and_Account =
230 Data.Map.foldlWithKey
231 (flip (\acct ->
232 Data.List.foldl'
233 (flip (\p ->
234 Data.Map.insertWith
235 (Data.Map.unionWith (++))
236 (Amount.signs $ posting_amounts p)
237 (Data.Map.singleton acct [p])))))
238 mempty
239
240 -- * The 'Tag' type
241
242 type Tag = (Tag_Name, Tag_Value)
243 type Tag_Name = Text
244 type Tag_Value = Text
245
246 type Tag_by_Name = Map Tag_Name [Tag_Value]
247
248 -- | Return a 'Data.Map.Map' associating the 'Value's of the given 'Tag's with their respective 'Name'.
249 tag_by_Name :: [Tag] -> Tag_by_Name
250 tag_by_Name =
251 Data.Map.fromListWith (flip (++)) .
252 Data.List.map (\(n, v) -> (n, [v]))