112 lines
5.5 KiB
Haskell
112 lines
5.5 KiB
Haskell
{-# LANGUAGE ScopedTypeVariables #-}
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module Handler.Stock where
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import Import
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--import Database.Esqueleto as E
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import Database.Persist.Sql (rawSql,RawSql(..))
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data Stock = Stock
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{ typeId :: Int64
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, stationId :: Int64
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, stationName :: Text
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, typeName :: Text
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, inStock :: Rational
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, worth :: Rational
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, datetime :: UTCTime
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, tax :: Double
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} deriving (Show, Eq)
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data DisCols = DisCols
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{ dTypeId :: Int64
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, dStationId :: Int64
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, dStationName :: Text
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, dTypeName :: Text
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, dInStock :: Int64
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, dWorth :: Int64
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, dAvgWorth :: Int64
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, dDateTime :: UTCTime
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, dResell :: Int64
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} deriving (Show, Eq)
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instance RawSql Stock where
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rawSqlCols _ _ = (8,[])
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rawSqlColCountReason _ = "typeId, stationId, stationName, typeName, inStock, worth, date, tax"
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rawSqlProcessRow [PersistInt64 t, PersistInt64 s, PersistText sn, PersistText tn,
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PersistRational is, PersistRational w, PersistUTCTime time, PersistDouble tax] =
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Right (Stock t s sn tn is w time tax)
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rawSqlProcessRow a = Left ("Wrong kinds of Arguments:" <> (pack $ show a))
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getStockR :: Handler Html
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getStockR = loginOrDo (\(uid,user) -> do
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--items <- runDB $ selectList [TransactionUser ==. uid, TransactionInStock >. 0] [Asc TransactionTypeName]
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--persist cannot do groupBy
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{-(items :: [(E.Value Text,
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E.Value Text,
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E.Value (Maybe Rational),
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E.Value (Maybe Rational))]) <-
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runDB $ select $ from $ \trans -> do
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where_ (trans ^. TransactionInStock E.>. (val 0))
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E.groupBy $ trans ^. TransactionTypeId
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E.groupBy $ trans ^. TransactionTypeName
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E.groupBy $ trans ^. TransactionStationName
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orderBy [asc (trans ^. TransactionTypeName)]
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return (trans ^. TransactionTypeName
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,trans ^. TransactionStationName
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,sum_ $ trans ^. TransactionInStock
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,avg_ $ (trans ^. TransactionPriceCents) *. (trans ^. TransactionInStock))-}
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--esqueleto does not work because we reference tables outside of the model, so we come back to raw SQL:
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let sql = "select t.type_id, t.station_id, t.station_name, t.type_name, \
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sum(t.in_stock) as in_stock, \
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sum(t.in_stock*t.price_cents) as worth, \
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to_timestamp(avg(extract(epoch from t.date_time at time zone 'utc'))) at time zone 'utc' as date_time, \
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(0.01-(0.001*ch.acc))+2*(0.0100-0.0005*ch.br)/exp(0.1000*COALESCE(\
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(select faction_standing from faction_standings where faction_id=c.\"factionID\" and \"user\"=t.\"user\")\
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,0)+0.0400*COALESCE(\
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(select corp_standing from corp_standings where corp_id=c.\"corporationID\" and \"user\"=t.\"user\")\
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,0))+1 as tax \
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\
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from transaction t \
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join \"staStations\" s on (t.station_id = s.\"stationID\") \
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join \"crpNPCCorporations\" c on (s.\"corporationID\" = c.\"corporationID\") \
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join \"user\" ch on (t.\"user\"=ch.id) \
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\
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where t.\"user\" = ? \
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and t.in_stock > 0 and not trans_is_sell \
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\
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group by t.type_id, t.station_id, t.type_name, t.station_name,\
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ch.acc, ch.br, c.\"factionID\", t.\"user\", c.\"corporationID\" \
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order by t.type_name asc"
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(items :: [Stock]) <- runDB $ rawSql sql [toPersistValue uid]
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let items' = convertStock <$> items
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defaultLayout $ [whamlet|
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<div .panel .panel-default>
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<div .panel-heading>Current Stock:
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<table .table .table-condensed .small .table-bordered>
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<tr>
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<th .text-center>Bought
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<th .text-center>Item name
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<th .text-center>Quantity
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<th .text-center>Buy price
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<th .text-center>Required sell
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<th .text-center>Total
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<th .text-center>Station name
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$forall DisCols tid sid sn tn is wrth avg' dt taxed <- items'
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<tr>
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<td>#{showDateTime dt}
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<td>#{tn}
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<td .numeric>#{is}
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<td .numeric>#{prettyISK avg'}
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<td .numeric>#{prettyISK taxed}
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<td .numeric>#{prettyISK wrth}
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<td>#{sn}
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|]
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)
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convertStock :: Stock -> DisCols
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convertStock (Stock tid sid sn tn is wrth dt tax) = DisCols tid sid sn tn (floor is) (floor wrth) avgItem dt (floor $ (fromIntegral avgItem) * tax)
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where
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avgItem = floor $ wrth / is
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