module TD.Data.MessageSender
  (MessageSender(..)) where

import qualified Data.Aeson as A
import qualified Data.Aeson.Types as AT
import qualified TD.Lib.Internal as I

-- | Contains information about the sender of a message
data MessageSender
  = MessageSenderUser -- ^ The message was sent by a known user
    { MessageSender -> Maybe Int
user_id :: Maybe Int -- ^ Identifier of the user that sent the message
    }
  | MessageSenderChat -- ^ The message was sent on behalf of a chat
    { MessageSender -> Maybe Int
chat_id :: Maybe Int -- ^ Identifier of the chat that sent the message
    }
  deriving (MessageSender -> MessageSender -> Bool
(MessageSender -> MessageSender -> Bool)
-> (MessageSender -> MessageSender -> Bool) -> Eq MessageSender
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: MessageSender -> MessageSender -> Bool
== :: MessageSender -> MessageSender -> Bool
$c/= :: MessageSender -> MessageSender -> Bool
/= :: MessageSender -> MessageSender -> Bool
Eq, Int -> MessageSender -> ShowS
[MessageSender] -> ShowS
MessageSender -> String
(Int -> MessageSender -> ShowS)
-> (MessageSender -> String)
-> ([MessageSender] -> ShowS)
-> Show MessageSender
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> MessageSender -> ShowS
showsPrec :: Int -> MessageSender -> ShowS
$cshow :: MessageSender -> String
show :: MessageSender -> String
$cshowList :: [MessageSender] -> ShowS
showList :: [MessageSender] -> ShowS
Show)

instance I.ShortShow MessageSender where
  shortShow :: MessageSender -> String
shortShow MessageSenderUser
    { user_id :: MessageSender -> Maybe Int
user_id = Maybe Int
user_id_
    }
      = String
"MessageSenderUser"
        String -> ShowS
forall a. [a] -> [a] -> [a]
++ [String] -> String
I.cc
        [ String
"user_id" String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
user_id_
        ]
  shortShow MessageSenderChat
    { chat_id :: MessageSender -> Maybe Int
chat_id = Maybe Int
chat_id_
    }
      = String
"MessageSenderChat"
        String -> ShowS
forall a. [a] -> [a] -> [a]
++ [String] -> String
I.cc
        [ String
"chat_id" String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
chat_id_
        ]

instance AT.FromJSON MessageSender where
  parseJSON :: Value -> Parser MessageSender
parseJSON v :: Value
v@(AT.Object Object
obj) = do
    String
t <- Object
obj Object -> Key -> Parser String
forall a. FromJSON a => Object -> Key -> Parser a
A..: Key
"@type" :: AT.Parser String

    case String
t of
      String
"messageSenderUser" -> Value -> Parser MessageSender
parseMessageSenderUser Value
v
      String
"messageSenderChat" -> Value -> Parser MessageSender
parseMessageSenderChat Value
v
      String
_                   -> Parser MessageSender
forall a. Monoid a => a
mempty
    
    where
      parseMessageSenderUser :: A.Value -> AT.Parser MessageSender
      parseMessageSenderUser :: Value -> Parser MessageSender
parseMessageSenderUser = String
-> (Object -> Parser MessageSender)
-> Value
-> Parser MessageSender
forall a. String -> (Object -> Parser a) -> Value -> Parser a
A.withObject String
"MessageSenderUser" ((Object -> Parser MessageSender) -> Value -> Parser MessageSender)
-> (Object -> Parser MessageSender)
-> Value
-> Parser MessageSender
forall a b. (a -> b) -> a -> b
$ \Object
o -> do
        Maybe Int
user_id_ <- Object
o Object -> Key -> Parser (Maybe Int)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"user_id"
        MessageSender -> Parser MessageSender
forall a. a -> Parser a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (MessageSender -> Parser MessageSender)
-> MessageSender -> Parser MessageSender
forall a b. (a -> b) -> a -> b
$ MessageSenderUser
          { user_id :: Maybe Int
user_id = Maybe Int
user_id_
          }
      parseMessageSenderChat :: A.Value -> AT.Parser MessageSender
      parseMessageSenderChat :: Value -> Parser MessageSender
parseMessageSenderChat = String
-> (Object -> Parser MessageSender)
-> Value
-> Parser MessageSender
forall a. String -> (Object -> Parser a) -> Value -> Parser a
A.withObject String
"MessageSenderChat" ((Object -> Parser MessageSender) -> Value -> Parser MessageSender)
-> (Object -> Parser MessageSender)
-> Value
-> Parser MessageSender
forall a b. (a -> b) -> a -> b
$ \Object
o -> do
        Maybe Int
chat_id_ <- Object
o Object -> Key -> Parser (Maybe Int)
forall a. FromJSON a => Object -> Key -> Parser (Maybe a)
A..:?  Key
"chat_id"
        MessageSender -> Parser MessageSender
forall a. a -> Parser a
forall (f :: * -> *) a. Applicative f => a -> f a
pure (MessageSender -> Parser MessageSender)
-> MessageSender -> Parser MessageSender
forall a b. (a -> b) -> a -> b
$ MessageSenderChat
          { chat_id :: Maybe Int
chat_id = Maybe Int
chat_id_
          }
  parseJSON Value
_ = Parser MessageSender
forall a. Monoid a => a
mempty

instance AT.ToJSON MessageSender where
  toJSON :: MessageSender -> Value
toJSON MessageSenderUser
    { user_id :: MessageSender -> Maybe Int
user_id = Maybe Int
user_id_
    }
      = [Pair] -> Value
A.object
        [ Key
"@type"   Key -> Value -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Text -> Value
AT.String Text
"messageSenderUser"
        , Key
"user_id" Key -> Maybe Int -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Int
user_id_
        ]
  toJSON MessageSenderChat
    { chat_id :: MessageSender -> Maybe Int
chat_id = Maybe Int
chat_id_
    }
      = [Pair] -> Value
A.object
        [ Key
"@type"   Key -> Value -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Text -> Value
AT.String Text
"messageSenderChat"
        , Key
"chat_id" Key -> Maybe Int -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Int
chat_id_
        ]