96 lines
2.4 KiB
Haskell
96 lines
2.4 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE TypeApplications #-}
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module Main where
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import Soostone
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import Control.Monad
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import Data.Version (showVersion)
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import Database.SQLite.Simple
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import Network.Wai.Handler.Warp ( run )
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import Options.Applicative
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import Paths_soostone ( version )
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import Prometheus
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import Prometheus.Metric.GHC
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import Prometheus.Metric.Proc
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import Text.Read ( readEither )
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versioner :: Parser (a -> a)
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versioner = infoOption (showVersion version) (long "version" <> help "Show version" <> hidden)
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data Command = Run ServerConfig
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| Create ServerConfig
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data Config = Config {
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serverCommand :: Command
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}
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parseConfig :: Parser Config
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parseConfig = Config <$> parseCommands
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data ServerConfig = ServerConfig {
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serverPort :: Int
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, sqliteDB :: FilePath
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}
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parseServerConf :: Parser ServerConfig
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parseServerConf = ServerConfig
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<$> option
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(eitherReader (readEither @Int))
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(long "server-port" <> metavar "SERVER_PORT" <> help
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"Port to use for the REST server"
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<> showDefault
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<> value 9000
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)
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<*> strOption
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( long "sqlite-db"
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<> metavar "SQLITE_DB"
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<> help "SQLite relation/database"
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<> showDefault
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<> value "soostone.sqlite3"
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)
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parseCommands :: Parser Command
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parseCommands = subparser $
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command
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"run"
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(info
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(Run <$> parseServerConf <**> helper)
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( progDesc "Run the REST API webserver"
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)
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)
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<>
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command
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"create-tables"
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(info
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(Create <$> parseServerConf <**> helper)
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( progDesc "Create the database"
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)
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)
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main :: IO ()
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main = do
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Config{ .. } <-
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execParser (info (parseConfig <**> helper <**> versioner) (fullDesc <> progDesc "Soostone"))
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case serverCommand of
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Run ServerConfig{..} -> do
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when (sqliteDB == ":memory:") $ fail "In-memory DB is not supported!"
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let appState = AppState { sqliteFile = sqliteDB }
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void $ register ghcMetrics
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void $ register procMetrics
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run serverPort (middleWare $ app appState)
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Create ServerConfig{..} -> do
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when (sqliteDB == ":memory:") $ fail "In-memory DB is not supported!"
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con <- open sqliteDB
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createTables con
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where
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createTables :: Connection -> IO ()
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createTables con = do
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execute_ con "CREATE TABLE IF NOT EXISTS keys (id INTEGER PRIMARY KEY, key TEXT, count INTEGER)"
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