feat: Authenticate by SSO tokens (#1439)

Co-authored-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

lib/redis/redis_keys.rb

@@ -1,7 +1,17 @@
 module Redis::RedisKeys
+  ## Inbox Keys
+  # Array storing the ordered ids for agent round robin assignment
   ROUND_ROBIN_AGENTS = 'ROUND_ROBIN_AGENTS:%<inbox_id>d'.freeze
 
+  ## Conversation keys
+  # Detect whether to send an email reply to the conversation
   CONVERSATION_MAILER_KEY = 'CONVERSATION::%<conversation_id>d'.freeze
+  # Whether a conversation is muted ?
+  CONVERSATION_MUTE_KEY = 'CONVERSATION::%<id>d::MUTED'.freeze
+
+  ## User Keys
+  # SSO Auth Tokens
+  USER_SSO_AUTH_TOKEN = 'USER_SSO_AUTH_TOKEN::%<user_id>d::%<token>s'.freeze
 
   ## Online Status Keys
   # hash containing user_id key and status as value
@@ -12,6 +22,7 @@ module Redis::RedisKeys
   ONLINE_PRESENCE_USERS = 'ONLINE_PRESENCE::%<account_id>d::USERS'.freeze
 
   ## Authorization Status Keys
+  # Used to track token expiry and such issues for facebook slack integrations etc
   AUTHORIZATION_ERROR_COUNT = 'AUTHORIZATION_ERROR_COUNT:%<obj_type>s:%<obj_id>d'.freeze
   REAUTHORIZATION_REQUIRED =  'REAUTHORIZATION_REQUIRED:%<obj_type>s:%<obj_id>d'.freeze
 end