{-# OPTIONS -fno-warn-orphans #-}
module Data.Torrent.MagnetSpec (spec) where

import Control.Applicative
import Data.Maybe
import Data.Monoid
import Test.Hspec
import Test.QuickCheck
import Test.QuickCheck.Instances ()
import Network.URI

import Data.Torrent.InfoHash
import Data.Torrent.Magnet
import Data.Torrent.InfoHashSpec ()


instance Arbitrary URIAuth where
  arbitrary = URIAuth <$> arbitrary <*> arbitrary <*> arbitrary

instance Arbitrary URI where
  arbitrary
    = pure $ fromJust $ parseURI "http://ietf.org/1737.txt?a=1&b=h#123"

instance Arbitrary Magnet where
  arbitrary = Magnet <$> arbitrary <*> arbitrary
    <*> arbitrary <*> arbitrary <*> arbitrary <*> arbitrary
    <*> arbitrary <*> arbitrary <*> pure mempty

magnetEncoding :: Magnet -> Bool
magnetEncoding m = parseMagnet (renderMagnet m) == Just m

spec :: Spec
spec = do
  describe "Magnet" $ do
    it "properly encoded" $ property $ magnetEncoding

    it "parse base32" $ do
      let magnet = "magnet:?xt=urn:btih:CT76LXJDDCH5LS2TUHKH6EUJ3NYKX4Y6"
      let ih = InfoHash "\DC4\255\229\221#\CAN\143\213\203S\161\212\DEL\DC2\137\219p\171\243\RS"
      parseMagnet magnet `shouldBe` Just (nullMagnet ih)

    it "parse base16" $ do
      let magnet = "magnet:?xt=urn:btih:0123456789abcdef0123456789abcdef01234567"
      let ih     = InfoHash "\SOH#Eg\137\171\205\239\SOH#Eg\137\171\205\239\SOH#Eg"
      parseMagnet magnet `shouldBe` Just (nullMagnet ih)