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/>.
  
  module Galley.API.MLS
    ( isMLSEnabled,
      assertMLSEnabled,
      postMLSMessage,
      postMLSCommitBundleFromLocalUser,
      postMLSMessageFromLocalUser,
      getMLSPublicKeys,
      formatPublicKeys,
    )
  where
  
  import Data.Default
  import Galley.API.Error
  import Galley.API.MLS.Enabled
  import Galley.API.MLS.Message
  import Galley.Env
  import Imports
  import Polysemy
  import Polysemy.Error
  import Polysemy.Input
  import Wire.API.Error
  import Wire.API.Error.Galley
  import Wire.API.MLS.Keys
  
  getMLSPublicKeys ::
    ( Member (Input Env) r,
      Member (ErrorS 'MLSNotEnabled) r,
      Member (Error InternalError) r
    ) =>
    Maybe MLSPublicKeyFormat ->
    Sem r (MLSKeysByPurpose (MLSKeys SomeKey))
  getMLSPublicKeys fmt = do
    publicKeys <- mlsKeysToPublic <$$> getMLSPrivateKeys
    formatPublicKeys fmt publicKeys
  
  formatPublicKeys ::
    (Member (Error InternalError) r) =>
    Maybe MLSPublicKeyFormat ->
    MLSKeysByPurpose MLSPublicKeys ->
    Sem r (MLSKeysByPurpose (MLSKeys SomeKey))
  formatPublicKeys fmt publicKeys =
    case fromMaybe def fmt of
      MLSPublicKeyFormatRaw -> pure (fmap (fmap mkSomeKey) publicKeys)
      MLSPublicKeyFormatJWK -> do
        jwks <-
          traverse
            ( note (InternalErrorWithDescription "malformed MLS removal keys")
                . mlsPublicKeysToJWK
            )
            publicKeys
        pure $ fmap (fmap mkSomeKey) jwks
  