From 2a6aa23836cfdbd614fec33fff2e6b733ab09991 Mon Sep 17 00:00:00 2001
From: ndwarshuis <ndwar@yavin4.ch>
Date: Mon, 29 May 2023 17:33:59 -0400
Subject: [PATCH] REF move database to same level module

---
 app/Main.hs                  |   2 +-
 budget.cabal                 |   2 +-
 lib/Internal/Budget.hs       |   2 +-
 lib/Internal/Database/Ops.hs | 425 -----------------------------------
 lib/Internal/History.hs      |   2 +-
 5 files changed, 4 insertions(+), 429 deletions(-)
 delete mode 100644 lib/Internal/Database/Ops.hs

diff --git a/app/Main.hs b/app/Main.hs
index a8ba0d8..69208e7 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -10,7 +10,7 @@ import qualified Data.Text.IO as TI
 import Database.Persist.Monad
 import Dhall hiding (double, record)
 import Internal.Budget
-import Internal.Database.Ops
+import Internal.Database
 import Internal.History
 import Internal.Types.Main
 import Internal.Utils
diff --git a/budget.cabal b/budget.cabal
index a0d6323..aa0f2b3 100644
--- a/budget.cabal
+++ b/budget.cabal
@@ -26,7 +26,7 @@ source-repository head
 library
   exposed-modules:
       Internal.Budget
-      Internal.Database.Ops
+      Internal.Database
       Internal.History
       Internal.Types.Database
       Internal.Types.Dhall
diff --git a/lib/Internal/Budget.hs b/lib/Internal/Budget.hs
index 8414b53..ec92a72 100644
--- a/lib/Internal/Budget.hs
+++ b/lib/Internal/Budget.hs
@@ -3,7 +3,7 @@ module Internal.Budget (insertBudget) where
 import Control.Monad.Except
 import Data.Foldable
 import Database.Persist.Monad
-import Internal.Database.Ops
+import Internal.Database
 import Internal.Types.Main
 import Internal.Utils
 import RIO hiding (to)
diff --git a/lib/Internal/Database/Ops.hs b/lib/Internal/Database/Ops.hs
deleted file mode 100644
index e32df5b..0000000
--- a/lib/Internal/Database/Ops.hs
+++ /dev/null
@@ -1,425 +0,0 @@
-module Internal.Database.Ops
-  ( runDB
-  , nukeTables
-  , updateHashes
-  , updateDBState
-  , getDBState
-  , tree2Records
-  , flattenAcntRoot
-  , paths2IDs
-  , mkPool
-  , whenHash
-  , whenHash_
-  , insertEntry
-  , resolveEntry
-  )
-where
-
-import Conduit
-import Control.Monad.Except
-import Control.Monad.Logger
-import Data.Hashable
-import Database.Esqueleto.Experimental ((==.), (^.))
-import qualified Database.Esqueleto.Experimental as E
-import Database.Esqueleto.Internal.Internal (SqlSelect)
-import Database.Persist.Monad
-import Database.Persist.Sqlite hiding
-  ( delete
-  , deleteWhere
-  , insert
-  , insertKey
-  , insert_
-  , runMigration
-  , (==.)
-  , (||.)
-  )
-import GHC.Err
-import Internal.Types.Main
-import Internal.Utils
-import RIO hiding (LogFunc, isNothing, on, (^.))
-import RIO.List ((\\))
-import qualified RIO.List as L
-import qualified RIO.Map as M
-import qualified RIO.NonEmpty as N
-import qualified RIO.Text as T
-
-runDB
-  :: MonadUnliftIO m
-  => SqlConfig
-  -> SqlQueryT (NoLoggingT m) a
-  -> m a
-runDB c more =
-  runNoLoggingT $ do
-    pool <- mkPool c
-    runSqlQueryT pool $ do
-      _ <- lift askLoggerIO
-      runMigration migrateAll
-      more
-
-mkPool :: (MonadLoggerIO m, MonadUnliftIO m) => SqlConfig -> m ConnectionPool
-mkPool c = case c of
-  Sqlite p -> createSqlitePool p 10
-  -- conn <- open p
-  -- wrapConnection conn logfn
-  Postgres -> error "postgres not implemented"
-
-nukeTables :: MonadSqlQuery m => m ()
-nukeTables = do
-  deleteWhere ([] :: [Filter CommitR])
-  deleteWhere ([] :: [Filter CurrencyR])
-  deleteWhere ([] :: [Filter AccountR])
-  deleteWhere ([] :: [Filter TransactionR])
-
--- showBalances :: MonadUnliftIO m => SqlPersistT m ()
--- showBalances = do
---   xs <- select $ do
---     (accounts :& splits :& txs) <-
---       from
---         $ table @AccountR
---           `innerJoin` table @SplitR
---         `on` (\(a :& s) -> a ^. AccountRId ==. s ^. SplitRAccount)
---           `innerJoin` table @TransactionR
---         `on` (\(_ :& s :& t) -> s ^. SplitRTransaction ==. t ^. TransactionRId)
---     where_ $
---       isNothing (txs ^. TransactionRBucket)
---         &&. ( (accounts ^. AccountRFullpath `like` val "asset" ++. (%))
---                 ||. (accounts ^. AccountRFullpath `like` val "liability" ++. (%))
---             )
---     groupBy (accounts ^. AccountRFullpath, accounts ^. AccountRName)
---     return
---       ( accounts ^. AccountRFullpath
---       , accounts ^. AccountRName
---       , sum_ $ splits ^. SplitRValue
---       )
---   -- TODO super stetchy table printing thingy
---   liftIO $ do
---     putStrLn $ T.unpack $ fmt "Account" "Balance"
---     putStrLn $ T.unpack $ fmt (T.replicate 60 "-") (T.replicate 15 "-")
---     mapM_ (putStrLn . T.unpack . fmtBalance) xs
---   where
---     fmtBalance (path, name, bal) = fmt (toFullPath path name) (toBal bal)
---     fmt a b = T.unwords ["| ", pad 60 a, " | ", pad 15 b, " |"]
---     pad n xs = T.append xs $ T.replicate (n - T.length xs) " "
---     toFullPath path name = T.unwords [unValue @T.Text path, "/", unValue @T.Text name]
---     toBal = maybe "???" (fmtRational 2) . unValue
-
-hashConfig :: Config -> [Int]
-hashConfig
-  Config_
-    { budget = bs
-    , statements = ss
-    } = (hash <$> bs) ++ (hash <$> ms) ++ (hash <$> ps)
-    where
-      (ms, ps) = partitionEithers $ fmap go ss
-      go (HistTransfer x) = Left x
-      go (HistStatement x) = Right x
-
-setDiff :: Eq a => [a] -> [a] -> ([a], [a])
--- setDiff = setDiff' (==)
-setDiff as bs = (as \\ bs, bs \\ as)
-
--- setDiff' :: Eq a => (a -> b -> Bool) -> [a] -> [b] -> ([a], [b])
--- setDiff' f = go []
---   where
---     go inA [] bs     = (inA, bs)
---     go inA as []     = (as ++ inA, [])
---     go inA (a:as) bs = case inB a bs of
---       Just bs' -> go inA as bs'
---       Nothing  -> go (a:inA) as bs
---     inB _ [] = Nothing
---     inB a (b:bs)
---       | f a b = Just bs
---       | otherwise = inB a bs
-
-getDBHashes :: MonadSqlQuery m => m [Int]
-getDBHashes = fmap (commitRHash . entityVal) <$> dumpTbl
-
-nukeDBHash :: MonadSqlQuery m => Int -> m ()
-nukeDBHash h = deleteE $ do
-  c <- E.from E.table
-  E.where_ (c ^. CommitRHash ==. E.val h)
-
-nukeDBHashes :: MonadSqlQuery m => [Int] -> m ()
-nukeDBHashes = mapM_ nukeDBHash
-
-getConfigHashes :: MonadSqlQuery m => Config -> m ([Int], [Int])
-getConfigHashes c = do
-  let ch = hashConfig c
-  dh <- getDBHashes
-  return $ setDiff dh ch
-
-dumpTbl :: (MonadSqlQuery m, PersistEntity r) => m [Entity r]
-dumpTbl = selectE $ E.from E.table
-
-deleteAccount :: MonadSqlQuery m => Entity AccountR -> m ()
-deleteAccount e = deleteE $ do
-  c <- E.from $ E.table @AccountR
-  E.where_ (c ^. AccountRId ==. E.val k)
-  where
-    k = entityKey e
-
-deleteCurrency :: MonadSqlQuery m => Entity CurrencyR -> m ()
-deleteCurrency e = deleteE $ do
-  c <- E.from $ E.table @CurrencyR
-  E.where_ (c ^. CurrencyRId ==. E.val k)
-  where
-    k = entityKey e
-
-deleteTag :: MonadSqlQuery m => Entity TagR -> m ()
-deleteTag e = deleteE $ do
-  c <- E.from $ E.table @TagR
-  E.where_ (c ^. TagRId ==. E.val k)
-  where
-    k = entityKey e
-
--- TODO slip-n-slide code...
-insertFull
-  :: (PersistRecordBackend r SqlBackend, Typeable r, MonadSqlQuery m)
-  => Entity r
-  -> m ()
-insertFull (Entity k v) = insertKey k v
-
-currency2Record :: Currency -> Entity CurrencyR
-currency2Record c@Currency {curSymbol, curFullname, curPrecision} =
-  Entity (toKey c) $ CurrencyR curSymbol curFullname (fromIntegral curPrecision)
-
-currencyMap :: [Entity CurrencyR] -> CurrencyMap
-currencyMap =
-  M.fromList
-    . fmap
-      ( \e ->
-          ( currencyRSymbol $ entityVal e
-          , (entityKey e, fromIntegral $ currencyRPrecision $ entityVal e)
-          )
-      )
-
-toKey :: (ToBackendKey SqlBackend b, Hashable a) => a -> Key b
-toKey = toSqlKey . fromIntegral . hash
-
-tree2Entity :: AcntType -> [T.Text] -> T.Text -> T.Text -> Entity AccountR
-tree2Entity t parents name des =
-  Entity (toSqlKey $ fromIntegral h) $
-    AccountR name (toPath parents) des
-  where
-    p = AcntPath t (reverse (name : parents))
-    h = hash p
-    toPath = T.intercalate "/" . (atName t :) . reverse
-
-tree2Records
-  :: AcntType
-  -> AccountTree
-  -> ([Entity AccountR], [AccountPathR], [(AcntPath, (AccountRId, AcntSign, AcntType))])
-tree2Records t = go []
-  where
-    go ps (Placeholder d n cs) =
-      let e = tree2Entity t (fmap snd ps) n d
-          k = entityKey e
-          (as, aps, ms) = L.unzip3 $ fmap (go ((k, n) : ps)) cs
-          a0 = acnt k n (fmap snd ps) d
-          paths = expand k $ fmap fst ps
-       in (a0 : concat as, paths ++ concat aps, concat ms)
-    go ps (Account d n) =
-      let e = tree2Entity t (fmap snd ps) n d
-          k = entityKey e
-       in ( [acnt k n (fmap snd ps) d]
-          , expand k $ fmap fst ps
-          , [(AcntPath t $ reverse $ n : fmap snd ps, (k, sign, t))]
-          )
-    toPath = T.intercalate "/" . (atName t :) . reverse
-    acnt k n ps = Entity k . AccountR n (toPath ps)
-    expand h0 hs = (\(h, d) -> AccountPathR h h0 d) <$> zip (h0 : hs) [0 ..]
-    sign = accountSign t
-
-paths2IDs :: [(AcntPath, a)] -> [(AcntID, a)]
-paths2IDs =
-  uncurry zip
-    . first trimNames
-    . L.unzip
-    . L.sortOn fst
-    . fmap (first pathList)
-  where
-    pathList (AcntPath t []) = atName t :| []
-    pathList (AcntPath t ns) = N.reverse $ atName t :| ns
-
--- none of these errors should fire assuming that input is sorted and unique
-trimNames :: [N.NonEmpty T.Text] -> [AcntID]
-trimNames = fmap (T.intercalate "_" . reverse) . trimAll 0
-  where
-    trimAll _ [] = []
-    trimAll i (y : ys) = case L.foldl' (matchPre i) (y, [], []) ys of
-      (a, [], bs) -> reverse $ trim i a : bs
-      (a, as, bs) -> reverse bs ++ trimAll (i + 1) (reverse $ a : as)
-    matchPre i (y, ys, old) new = case (y !? i, new !? i) of
-      (Nothing, Just _) ->
-        case ys of
-          [] -> (new, [], trim i y : old)
-          _ -> err "unsorted input"
-      (Just _, Nothing) -> err "unsorted input"
-      (Nothing, Nothing) -> err "duplicated inputs"
-      (Just a, Just b)
-        | a == b -> (new, y : ys, old)
-        | otherwise ->
-            let next = case ys of
-                  [] -> [trim i y]
-                  _ -> trimAll (i + 1) (reverse $ y : ys)
-             in (new, [], reverse next ++ old)
-    trim i = N.take (i + 1)
-    err msg = errorWithoutStackTrace $ "Import.Database.Ops.hs: " ++ msg
-
-(!?) :: N.NonEmpty a -> Int -> Maybe a
-xs !? n
-  | n < 0 = Nothing
-  -- Definition adapted from GHC.List
-  | otherwise =
-      foldr
-        ( \x r k -> case k of
-            0 -> Just x
-            _ -> r (k - 1)
-        )
-        (const Nothing)
-        xs
-        n
-
-flattenAcntRoot :: AccountRoot -> [(AcntType, AccountTree)]
-flattenAcntRoot AccountRoot_ {arIncome, arExpenses, arLiabilities, arAssets, arEquity} =
-  ((IncomeT,) <$> arIncome)
-    ++ ((ExpenseT,) <$> arExpenses)
-    ++ ((LiabilityT,) <$> arLiabilities)
-    ++ ((AssetT,) <$> arAssets)
-    ++ ((EquityT,) <$> arEquity)
-
-indexAcntRoot :: AccountRoot -> ([Entity AccountR], [AccountPathR], AccountMap)
-indexAcntRoot r =
-  ( concat ars
-  , concat aprs
-  , M.fromList $ paths2IDs $ concat ms
-  )
-  where
-    (ars, aprs, ms) = L.unzip3 $ uncurry tree2Records <$> flattenAcntRoot r
-
-getDBState
-  :: (MonadInsertError m, MonadSqlQuery m)
-  => Config
-  -> m (FilePath -> DBState)
-getDBState c = do
-  (del, new) <- getConfigHashes c
-  -- TODO not sure how I feel about this, probably will change this struct alot
-  -- in the future so whatever...for now
-  combineError bi si $ \b s f ->
-    -- TODO this can be cleaned up, half of it is meant to be queried when
-    -- determining how to insert budgets/history and the rest is just
-    -- holdover data to delete upon successful insertion
-    DBState
-      { kmCurrency = currencyMap cs
-      , kmAccount = am
-      , kmBudgetInterval = b
-      , kmStatementInterval = s
-      , kmNewCommits = new
-      , kmOldCommits = del
-      , kmConfigDir = f
-      , kmTag = tagMap ts
-      , kmTagAll = ts
-      , kmAcntPaths = paths
-      , kmAcntsOld = acnts
-      , kmCurrenciesOld = cs
-      }
-  where
-    bi = liftExcept $ resolveDaySpan $ budgetInterval $ global c
-    si = liftExcept $ resolveDaySpan $ statementInterval $ global c
-    (acnts, paths, am) = indexAcntRoot $ accounts c
-    cs = currency2Record <$> currencies c
-    ts = toRecord <$> tags c
-    toRecord t@Tag {tagID, tagDesc} = Entity (toKey t) $ TagR tagID tagDesc
-    tagMap = M.fromList . fmap (\e -> (tagRSymbol $ entityVal e, entityKey e))
-
-updateHashes :: (MonadFinance m, MonadSqlQuery m) => m ()
-updateHashes = do
-  old <- askDBState kmOldCommits
-  nukeDBHashes old
-
-updateTags :: (MonadFinance m, MonadSqlQuery m) => m ()
-updateTags = do
-  tags <- askDBState kmTagAll
-  tags' <- selectE $ E.from $ E.table @TagR
-  let (toIns, toDel) = setDiff tags tags'
-  mapM_ deleteTag toDel
-  mapM_ insertFull toIns
-
-updateAccounts :: (MonadFinance m, MonadSqlQuery m) => m ()
-updateAccounts = do
-  acnts <- askDBState kmAcntsOld
-  paths <- askDBState kmAcntPaths
-  acnts' <- dumpTbl
-  let (toIns, toDel) = setDiff acnts acnts'
-  deleteWhere ([] :: [Filter AccountPathR])
-  mapM_ deleteAccount toDel
-  mapM_ insertFull toIns
-  mapM_ insert paths
-
-updateCurrencies :: (MonadFinance m, MonadSqlQuery m) => m ()
-updateCurrencies = do
-  curs <- askDBState kmCurrenciesOld
-  curs' <- selectE $ E.from $ E.table @CurrencyR
-  let (toIns, toDel) = setDiff curs curs'
-  mapM_ deleteCurrency toDel
-  mapM_ insertFull toIns
-
-updateDBState :: (MonadFinance m, MonadSqlQuery m) => m ()
-updateDBState = do
-  updateHashes
-  updateTags
-  updateAccounts
-  updateCurrencies
-
-deleteE :: (MonadSqlQuery m) => E.SqlQuery () -> m ()
-deleteE q = unsafeLiftSql "esqueleto-delete" (E.delete q)
-
-selectE :: (MonadSqlQuery m, SqlSelect a r) => E.SqlQuery a -> m [r]
-selectE q = unsafeLiftSql "esqueleto-select" (E.select q)
-
-whenHash
-  :: (Hashable a, MonadFinance m, MonadSqlQuery m)
-  => ConfigType
-  -> a
-  -> b
-  -> (CommitRId -> m b)
-  -> m b
-whenHash t o def f = do
-  let h = hash o
-  hs <- askDBState kmNewCommits
-  if h `elem` hs then f =<< insert (CommitR h t) else return def
-
-whenHash_
-  :: (Hashable a, MonadFinance m)
-  => ConfigType
-  -> a
-  -> m b
-  -> m (Maybe (CommitR, b))
-whenHash_ t o f = do
-  let h = hash o
-  let c = CommitR h t
-  hs <- askDBState kmNewCommits
-  if h `elem` hs then Just . (c,) <$> f else return Nothing
-
-insertEntry :: MonadSqlQuery m => TransactionRId -> KeyEntry -> m EntryRId
-insertEntry t Entry {eAcnt, eCurrency, eValue, eComment, eTags} = do
-  k <- insert $ EntryR t eCurrency eAcnt eComment eValue
-  mapM_ (insert_ . TagRelationR k) eTags
-  return k
-
-resolveEntry :: (MonadInsertError m, MonadFinance m) => BalEntry -> m KeyEntry
-resolveEntry s@Entry {eAcnt, eCurrency, eValue, eTags} = do
-  let aRes = lookupAccountKey eAcnt
-  let cRes = lookupCurrencyKey eCurrency
-  let sRes = lookupAccountSign eAcnt
-  let tagRes = combineErrors $ fmap lookupTag eTags
-  -- TODO correct sign here?
-  -- TODO lenses would be nice here
-  combineError (combineError3 aRes cRes sRes (,,)) tagRes $
-    \(aid, cid, sign) tags ->
-      s
-        { eAcnt = aid
-        , eCurrency = cid
-        , eValue = eValue * fromIntegral (sign2Int sign)
-        , eTags = tags
-        }
diff --git a/lib/Internal/History.hs b/lib/Internal/History.hs
index bbf52c9..a537288 100644
--- a/lib/Internal/History.hs
+++ b/lib/Internal/History.hs
@@ -9,7 +9,7 @@ where
 import Control.Monad.Except
 import Data.Csv
 import Database.Persist.Monad
-import Internal.Database.Ops
+import Internal.Database
 import Internal.Types.Main
 import Internal.Utils
 import RIO hiding (to)