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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE TemplateHaskell #-}
module Main where
import Data.Aeson
import GHC.Generics
import Network.Wai
import Network.Wai.Handler.Warp
import Servant
import HFlags
import System.Exit
import Control.Monad
import Data
import PhotoStore
import Control.Monad.IO.Class
import Control.Monad.Trans.Either
defineFlag "port" (8081 :: Int) "Port to serve on"
defineFlag "host" ("*6" :: String) "Host to serve on (*6 for ipv6 mode)"
defineFlag "pending_path" ("" :: String) "Path to pending albums"
defineFlag "photos_path" ("" :: String) "Path to permanent albums"
$(return [])
instance ToJSON Album
instance FromJSON Album
data RenameRequest = RenameRequest
{ from :: Album
, to :: Album
} deriving (Eq, Show, Generic)
instance FromJSON RenameRequest
instance ToJSON RenameError
type PhotoApi =
"albums" :> Get '[JSON] [Album]
:<|> "rename" :> ReqBody '[JSON] RenameRequest :> Post '[JSON] (Either RenameError ())
config = Config
{ pendingPath = flags_pending_path
, photosPath = flags_photos_path
}
server :: Server PhotoApi
server = albums
:<|> rename
where albums = liftIO (getAlbums config)
rename :: RenameRequest -> EitherT ServantErr IO (Either RenameError ())
rename (RenameRequest from to) = liftIO $
runEitherT (renameAlbum config from to)
photoApi :: Proxy PhotoApi
photoApi = Proxy
app :: Application
app = serve photoApi server
port = 8081
settings :: Settings
settings = setHost "*6" . setPort 8081 $ defaultSettings
main :: IO ()
main = do
$initHFlags "photos"
when (flags_pending_path == "") (die "--pending_path must be specified")
when (flags_photos_path == "") (die "--photos_path must be specified")
putStrLn $ "Starting server on port: " ++ (show port)
runSettings settings app
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