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{-# LANGUAGE OverloadedStrings #-}
module SpaceTraders.Database.Systems
( addSystems
, getSystems
) where
import Data.Aeson
import Data.Maybe
import qualified Database.SQLite.Simple as S
import Data.Text.Encoding (encodeUtf8Builder)
import Data.ByteString.Builder(toLazyByteString)
import SpaceTraders.Model.System
addSystems :: S.Connection -> [System] -> IO ()
addSystems conn systems = S.withTransaction conn $ S.executeMany conn "INSERT INTO systems(data) VALUES (json(?));" $ S.Only <$> map encode systems
getSystems :: S.Connection -> IO [System]
getSystems conn = do
ret <- S.query_ conn "SELECT data from systems;"
return . catMaybes $ map (decode . toLazyByteString . encodeUtf8Builder . head) ret
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