gameServer/OfficialServer/updateRating.hs
author Wuzzy <almikes@aol.com>
Wed, 13 Apr 2016 02:44:37 +0200
changeset 11726 4addfad422ab
parent 11390 36e1bbb6ecea
permissions -rw-r--r--
Construction Mode: Recognize health case amount from game scheme
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{-# LANGUAGE ScopedTypeVariables, OverloadedStrings #-}
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module Main where
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import Data.Maybe
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import Data.TConfig
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import qualified Data.ByteString.Char8 as B
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import Database.MySQL.Simple
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import Database.MySQL.Simple.QueryResults
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import Database.MySQL.Simple.Result
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import Control.Monad
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import Control.Exception
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import System.IO
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import qualified  Data.Map as Map
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import Data.Time.Clock
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------
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import OfficialServer.Glicko2
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queryEpochDates = "SELECT epoch, todatetime, todatetime + INTERVAL 1 week FROM rating_epochs WHERE epoch = (SELECT MAX(epoch) FROM rating_epochs)"
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queryPreviousRatings = "SELECT v.userid, v.rating, v.rd, v.volatility FROM rating_values as v WHERE (v.epoch = (SELECT MAX(epoch) FROM rating_epochs))"
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queryGameResults =
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        "SELECT \
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        \     p.userid \
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        \     , p.place \
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        \     , COALESCE(vp.rating, 1500) \
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        \     , COALESCE(vp.rd, 350) \
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        \     , COALESCE(vp.volatility, 0.06) \
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        \     , COALESCE(vo.rating, 1500) \
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        \     , COALESCE(vo.rd, 350) \
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        \     , COALESCE(vo.volatility, 0.06) \
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        \ FROM \
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        \     (SELECT epoch, todatetime FROM rating_epochs WHERE epoch = (SELECT MAX(epoch) FROM rating_epochs)) as e \
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        \     JOIN rating_games as g ON (g.time BETWEEN e.todatetime AND e.todatetime + INTERVAL 1 WEEK - INTERVAL 1 SECOND) \
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        \     JOIN rating_players as p ON (p.gameid = g.id) \
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        \     JOIN rating_players as o ON (p.gameid = o.gameid AND p.userid <> o.userid AND (p.place = 0 OR (p.place <> o.place))) \
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        \     LEFT OUTER JOIN rating_values as vp ON (vp.epoch = e.epoch AND vp.userid = p.userid) \
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        \     LEFT OUTER JOIN rating_values as vo ON (vo.epoch = e.epoch AND vo.userid = o.userid) \
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        \ GROUP BY p.userid, p.gameid, p.place \
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        \ ORDER BY p.userid"
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insertNewRatings = "INSERT INTO rating_values (userid, epoch, rating, rd, volatility, games) VALUES (?, ?, ?, ?, ?, ?)"
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insertNewEpoch = "INSERT INTO rating_epochs (epoch, todatetime) VALUES (?, ?)"
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mergeRatingData :: Map.Map Int (RatingData, [GameData]) -> [(Int, (RatingData, [GameData]))] -> Map.Map Int (RatingData, [GameData])
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mergeRatingData m s = foldr (uncurry (Map.insertWith mf)) m s
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    where
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        mf (rd, gds) (_, gds2) = (rd, gds ++ gds2)
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calculateRatings dbConn = do
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    [(epochNum :: Int, fromDate :: UTCTime, toDate :: UTCTime)] <- query_ dbConn queryEpochDates
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    initRatingData <- (Map.fromList . map fromDBrating) `fmap` query_ dbConn queryPreviousRatings
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    gameData <- map fromGameResult `fmap` query_ dbConn queryGameResults
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    let mData = map getNewRating . Map.toList $ mergeRatingData initRatingData gameData
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    executeMany dbConn insertNewRatings $ map (toInsert epochNum) mData
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    execute dbConn insertNewEpoch (epochNum + 1, toDate)
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    return ()
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    where
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        toInsert e (i, (g, RatingData r rd v)) = (i, e + 1, r, rd, v, g)
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        getNewRating (a, d) = (a, uncurry calcNewRating d)
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        convPlace :: Int -> Double
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        convPlace 0 = 0.5
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        convPlace 1 = 1.0
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        convPlace 2 = 0.0
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        convPlace _ = error "Incorrect place value"
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        fromDBrating (a, b, c, d) = (a, (RatingData b c d, []))
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        fromGameResult (pid, place, prating, pRD, pvol, orating, oRD, ovol) =
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            (pid,
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                (RatingData prating pRD pvol
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                , [GameData (RatingData orating oRD ovol) $ convPlace place]))
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data DBConnectInfo = DBConnectInfo {
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    dbHost
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    , dbName
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    , dbLogin
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    , dbPassword :: B.ByteString
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    }
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cfgFileName :: String
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cfgFileName = "hedgewars-server.ini"
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readServerConfig :: ConnectInfo -> IO ConnectInfo
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readServerConfig ci = do
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    cfg <- readConfig cfgFileName
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    return $ ci{
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        connectHost = value "dbHost" cfg
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        , connectDatabase = value "dbName" cfg
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        , connectUser = value "dbLogin" cfg
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        , connectPassword = value "dbPassword" cfg
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    }
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    where
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        value n c = fromJust2 n $ getValue n c
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        fromJust2 n Nothing = error $ "Missing config entry " ++ n
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        fromJust2 _ (Just a) = a
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dbConnectionLoop mySQLConnectionInfo =
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    Control.Exception.handle (\(e :: SomeException) -> hPutStrLn stderr $ show e) $
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        bracket
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            (connect mySQLConnectionInfo)
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            close
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            calculateRatings
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main = readServerConfig defaultConnectInfo >>= dbConnectionLoop