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-rw-r--r--src/Erebos/Conversation/Class.hs8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/Erebos/Conversation/Class.hs b/src/Erebos/Conversation/Class.hs
index d7bac5d..7c3652d 100644
--- a/src/Erebos/Conversation/Class.hs
+++ b/src/Erebos/Conversation/Class.hs
@@ -1,5 +1,6 @@
module Erebos.Conversation.Class (
ConversationType(..),
+ MessageExtra(..),
RefDigest,
) where
@@ -15,10 +16,17 @@ import Erebos.Object
import Erebos.State
+data MessageExtra
+ = UserJoined
+ | UserLeft
+
+
class (Typeable conv, Typeable msg) => ConversationType conv msg | conv -> msg, msg -> conv where
convMessageFrom :: msg -> ComposedIdentity
convMessageTime :: msg -> ZonedTime
convMessageText :: msg -> Maybe Text
+ convMessageExtra :: msg -> [ MessageExtra ]
+ convMessageExtra _ = []
convReference :: conv -> RefDigest
convMessageListSince