content: -- This file is part of the Wire Server implementation.
  --
  -- Copyright (C) 2022 Wire Swiss GmbH <opensource@wire.com>
  --
  -- This program is free software: you can redistribute it and/or modify it under
  -- the terms of the GNU Affero General Public License as published by the Free
  -- Software Foundation, either version 3 of the License, or (at your option) any
  -- later version.
  --
  -- This program is distributed in the hope that it will be useful, but WITHOUT
  -- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  -- FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
  -- details.
  --
  -- You should have received a copy of the GNU Affero General Public License along
  -- with this program. If not, see <https://www.gnu.org/licenses/>.
  {-# LANGUAGE GeneralizedNewtypeDeriving #-}
  
  module Wire.API.MLS.Lifetime where
  
  import Data.Time.Clock.POSIX
  import Imports
  import Test.QuickCheck
  import Wire.API.MLS.Serialisation
  import Wire.Arbitrary
  
  -- | Seconds since the UNIX epoch.
  newtype Timestamp = Timestamp {timestampSeconds :: Word64}
    deriving newtype (Eq, Show, Arbitrary, ParseMLS, SerialiseMLS)
  
  tsPOSIX :: Timestamp -> POSIXTime
  tsPOSIX = fromIntegral . timestampSeconds
  
  -- | https://messaginglayersecurity.rocks/mls-protocol/draft-ietf-mls-protocol-20/draft-ietf-mls-protocol.html#section-7.2-2
  data Lifetime = Lifetime
    { ltNotBefore :: Timestamp,
      ltNotAfter :: Timestamp
    }
    deriving stock (Eq, Show, Generic)
    deriving (Arbitrary) via GenericUniform Lifetime
  
  instance ParseMLS Lifetime where
    parseMLS = Lifetime <$> parseMLS <*> parseMLS
  
  instance SerialiseMLS Lifetime where
    serialiseMLS lt = do
      serialiseMLS lt.ltNotBefore
      serialiseMLS lt.ltNotAfter
  