content: {-# LANGUAGE GeneralizedNewtypeDeriving #-}
  
  -- 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 Wire.API.UserMap where
  
  import Control.Lens ((?~), (^.))
  import Data.Aeson (FromJSON, ToJSON (toJSON))
  import Data.Domain (Domain)
  import Data.Id (UserId)
  import Data.Map qualified as Map
  import Data.OpenApi (HasDescription (description), HasExample (example), NamedSchema (..), ToSchema (..), declareSchema, toSchema)
  import Data.Proxy (Proxy (..))
  import Data.Set qualified as Set
  import Data.Text qualified as Text
  import Data.Typeable (typeRep)
  import Imports
  import Test.QuickCheck (Arbitrary (..))
  import Wire.API.Wrapped (Wrapped)
  import Wire.Arbitrary (generateExample, mapOf')
  
  newtype UserMap a = UserMap {userMap :: Map UserId a}
    deriving stock (Eq, Show)
    deriving newtype (Semigroup, Monoid, ToJSON, FromJSON, Functor)
  
  instance (Arbitrary a) => Arbitrary (UserMap a) where
    arbitrary = UserMap <$> mapOf' arbitrary arbitrary
  
  type WrappedQualifiedUserMap a = Wrapped "qualified_user_map" (QualifiedUserMap a)
  
  newtype QualifiedUserMap a = QualifiedUserMap
    { qualifiedUserMap :: Map Domain (UserMap a)
    }
    deriving stock (Eq, Show)
    deriving newtype (Semigroup, Monoid, ToJSON, FromJSON)
  
  instance Functor QualifiedUserMap where
    fmap f (QualifiedUserMap qMap) =
      QualifiedUserMap $ f <$$> qMap
  
  instance (Arbitrary a) => Arbitrary (QualifiedUserMap a) where
    arbitrary = QualifiedUserMap <$> mapOf' arbitrary arbitrary
  
  instance (ToSchema a, ToJSON a, Arbitrary a) => ToSchema (UserMap (Set a)) where
    declareNamedSchema _ = do
      mapSch <- declareSchema (Proxy @(Map UserId (Set a)))
      let valueTypeName = Text.pack $ show $ typeRep $ Proxy @a
      pure $
        NamedSchema (Just $ "UserMap_Set_" <> valueTypeName) $
          mapSch
            & description ?~ "Map of UserId to (Set " <> valueTypeName <> ")"
            & example ?~ toJSON (Map.singleton (generateExample @UserId) (Set.singleton (generateExample @a)))
  
  instance (Typeable a, ToSchema (UserMap a)) => ToSchema (QualifiedUserMap a) where
    declareNamedSchema _ = do
      mapSch <- declareSchema (Proxy @(Map Domain (UserMap a)))
      let userMapSchema = toSchema (Proxy @(UserMap a))
      let valueTypeName = Text.replace " " "_" . Text.pack $ show $ typeRep $ Proxy @a
      pure $
        NamedSchema (Just $ "QualifiedUserMap_" <> valueTypeName) $
          mapSch
            & description ?~ "Map of Domain to (UserMap (" <> valueTypeName <> "))."
            & example
              ?~ toJSON
                (Map.singleton ("domain1.example.com" :: Text) (userMapSchema ^. example))
  