module TD.Query.GetSavedMessagesTopicHistory
  (GetSavedMessagesTopicHistory(..)
  , defaultGetSavedMessagesTopicHistory
  ) where

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

-- | Returns messages in a Saved Messages topic. The messages are returned in reverse chronological order (i.e., in order of decreasing message_id). Returns 'TD.Data.Messages.Messages'
data GetSavedMessagesTopicHistory
  = GetSavedMessagesTopicHistory
    { GetSavedMessagesTopicHistory -> Maybe Int
saved_messages_topic_id :: Maybe Int -- ^ Identifier of Saved Messages topic which messages will be fetched
    , GetSavedMessagesTopicHistory -> Maybe Int
from_message_id         :: Maybe Int -- ^ Identifier of the message starting from which messages must be fetched; use 0 to get results from the last message
    , GetSavedMessagesTopicHistory -> Maybe Int
offset                  :: Maybe Int -- ^ Specify 0 to get results from exactly the message from_message_id or a negative offset up to 99 to get additionally some newer messages
    , GetSavedMessagesTopicHistory -> Maybe Int
limit                   :: Maybe Int -- ^ The maximum number of messages to be returned; must be positive and can't be greater than 100. If the offset is negative, the limit must be greater than or equal to -offset. For optimal performance, the number of returned messages is chosen by TDLib and can be smaller than the specified limit
    }
  deriving (GetSavedMessagesTopicHistory
-> GetSavedMessagesTopicHistory -> Bool
(GetSavedMessagesTopicHistory
 -> GetSavedMessagesTopicHistory -> Bool)
-> (GetSavedMessagesTopicHistory
    -> GetSavedMessagesTopicHistory -> Bool)
-> Eq GetSavedMessagesTopicHistory
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
$c== :: GetSavedMessagesTopicHistory
-> GetSavedMessagesTopicHistory -> Bool
== :: GetSavedMessagesTopicHistory
-> GetSavedMessagesTopicHistory -> Bool
$c/= :: GetSavedMessagesTopicHistory
-> GetSavedMessagesTopicHistory -> Bool
/= :: GetSavedMessagesTopicHistory
-> GetSavedMessagesTopicHistory -> Bool
Eq, Int -> GetSavedMessagesTopicHistory -> ShowS
[GetSavedMessagesTopicHistory] -> ShowS
GetSavedMessagesTopicHistory -> String
(Int -> GetSavedMessagesTopicHistory -> ShowS)
-> (GetSavedMessagesTopicHistory -> String)
-> ([GetSavedMessagesTopicHistory] -> ShowS)
-> Show GetSavedMessagesTopicHistory
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
$cshowsPrec :: Int -> GetSavedMessagesTopicHistory -> ShowS
showsPrec :: Int -> GetSavedMessagesTopicHistory -> ShowS
$cshow :: GetSavedMessagesTopicHistory -> String
show :: GetSavedMessagesTopicHistory -> String
$cshowList :: [GetSavedMessagesTopicHistory] -> ShowS
showList :: [GetSavedMessagesTopicHistory] -> ShowS
Show)

instance I.ShortShow GetSavedMessagesTopicHistory where
  shortShow :: GetSavedMessagesTopicHistory -> String
shortShow
    GetSavedMessagesTopicHistory
      { saved_messages_topic_id :: GetSavedMessagesTopicHistory -> Maybe Int
saved_messages_topic_id = Maybe Int
saved_messages_topic_id_
      , from_message_id :: GetSavedMessagesTopicHistory -> Maybe Int
from_message_id         = Maybe Int
from_message_id_
      , offset :: GetSavedMessagesTopicHistory -> Maybe Int
offset                  = Maybe Int
offset_
      , limit :: GetSavedMessagesTopicHistory -> Maybe Int
limit                   = Maybe Int
limit_
      }
        = String
"GetSavedMessagesTopicHistory"
          String -> ShowS
forall a. [a] -> [a] -> [a]
++ [String] -> String
I.cc
          [ String
"saved_messages_topic_id" String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
saved_messages_topic_id_
          , String
"from_message_id"         String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
from_message_id_
          , String
"offset"                  String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
offset_
          , String
"limit"                   String -> Maybe Int -> String
forall a. ShortShow a => String -> Maybe a -> String
`I.p` Maybe Int
limit_
          ]

instance AT.ToJSON GetSavedMessagesTopicHistory where
  toJSON :: GetSavedMessagesTopicHistory -> Value
toJSON
    GetSavedMessagesTopicHistory
      { saved_messages_topic_id :: GetSavedMessagesTopicHistory -> Maybe Int
saved_messages_topic_id = Maybe Int
saved_messages_topic_id_
      , from_message_id :: GetSavedMessagesTopicHistory -> Maybe Int
from_message_id         = Maybe Int
from_message_id_
      , offset :: GetSavedMessagesTopicHistory -> Maybe Int
offset                  = Maybe Int
offset_
      , limit :: GetSavedMessagesTopicHistory -> Maybe Int
limit                   = Maybe Int
limit_
      }
        = [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
"getSavedMessagesTopicHistory"
          , Key
"saved_messages_topic_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
saved_messages_topic_id_
          , Key
"from_message_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
from_message_id_
          , Key
"offset"                  Key -> Maybe Int -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Int
offset_
          , Key
"limit"                   Key -> Maybe Int -> Pair
forall kv v. (KeyValue kv, ToJSON v) => Key -> v -> kv
forall v. ToJSON v => Key -> v -> Pair
A..= Maybe Int
limit_
          ]

defaultGetSavedMessagesTopicHistory :: GetSavedMessagesTopicHistory
defaultGetSavedMessagesTopicHistory :: GetSavedMessagesTopicHistory
defaultGetSavedMessagesTopicHistory =
  GetSavedMessagesTopicHistory
    { saved_messages_topic_id :: Maybe Int
saved_messages_topic_id = Maybe Int
forall a. Maybe a
Nothing
    , from_message_id :: Maybe Int
from_message_id         = Maybe Int
forall a. Maybe a
Nothing
    , offset :: Maybe Int
offset                  = Maybe Int
forall a. Maybe a
Nothing
    , limit :: Maybe Int
limit                   = Maybe Int
forall a. Maybe a
Nothing
    }