-- |
-- SAML Versioning
--
-- <https://docs.oasis-open.org/security/saml/v2.0/saml-core-2.0-os.pdf saml-core-2.0-os> §4
module SAML2.Core.Versioning
  ( SAMLVersion(..)
  , samlVersion
  ) where

import Data.Version (Version, makeVersion)

import qualified Text.XML.HXT.Arrow.Pickle.Xml.Invertible as XP

data SAMLVersion
  = SAML10
  | SAML11
  | SAML20
  deriving (SAMLVersion -> SAMLVersion -> Bool
(SAMLVersion -> SAMLVersion -> Bool)
-> (SAMLVersion -> SAMLVersion -> Bool) -> Eq SAMLVersion
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samlVersion :: SAMLVersion -> Version
samlVersion :: SAMLVersion -> Version
samlVersion SAMLVersion
SAML10 = [Int] -> Version
makeVersion [Int
1,Int
0]
samlVersion SAMLVersion
SAML11 = [Int] -> Version
makeVersion [Int
1,Int
1]
samlVersion SAMLVersion
SAML20 = [Int] -> Version
makeVersion [Int
2,Int
0]

instance Show SAMLVersion where
  show :: SAMLVersion -> String
show SAMLVersion
SAML10 = String
"1.0"
  show SAMLVersion
SAML11 = String
"1.1"
  show SAMLVersion
SAML20 = String
"2.0"

instance Read SAMLVersion where
  readsPrec :: Int -> ReadS SAMLVersion
readsPrec Int
_ (Char
'1':Char
'.':Char
'0':String
s) = [(SAMLVersion
SAML10, String
s)]
  readsPrec Int
_ (Char
'1':Char
'.':Char
'1':String
s) = [(SAMLVersion
SAML11, String
s)]
  readsPrec Int
_ (Char
'2':Char
'.':Char
'0':String
s) = [(SAMLVersion
SAML20, String
s)]
  readsPrec Int
_ String
_ = []

instance XP.XmlPickler SAMLVersion where
  xpickle :: PU SAMLVersion
xpickle = PU SAMLVersion
forall a. (Read a, Show a) => PU a
XP.xpPrim