summaryrefslogtreecommitdiff
path: root/haskell/src/SpaceTraders/Database/Agents.hs
blob: 49ae11f8afa93ead6f086c9f33a61fbe6a0e64b8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
{-# LANGUAGE OverloadedStrings #-}

module SpaceTraders.Database.Agents
  ( addAgent
  , getAgent
  , setAgent
  ) where

import Control.Monad.Reader
import Data.Aeson
import qualified Database.SQLite.Simple as S

import SpaceTraders
import SpaceTraders.Model.Agent
import SpaceTraders.Utils

addAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => Agent -> m ()
addAgent agent = execute "INSERT INTO agents(data) VALUES (json(?));" (S.Only (encode agent))

getAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => m Agent
getAgent = one_ "SELECT data FROM agents";

setAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => Agent -> m ()
setAgent agent = execute "UPDATE agents SET data = json(?);" (S.Only (encode agent))