@startuml
actor requestor
actor sock_cli

== Get Authen Info ==
requestor o-> fcgi : fetch authorize info and acc_addr
activate fcgi
fcgi --> room_factory : build all rooms
activate room_factory
room_factory -> room_svr : invite until build room
activate room_svr
room_svr -> room_factory
deactivate room_svr
room_factory --> fcgi
deactivate room_factory
fcgi -->o requestor : resp authorize info
deactivate fcgi

== Get Rooms ==
requestor o-> fcgi : list_rooms
activate fcgi
fcgi ->o requestor : rooms
deactivate fcgi

== Get Unreaded Messages ==
requestor o-> fcgi : unread msgs,roomid
activate fcgi
fcgi ->o requestor : unread msgs
deactivate fcgi

== invite ==
fcgi o-> room_factory : invite(roomid,inviter,invitee)
activate room_factory
room_factory -> room_svr : invite(roomid,inviter,invitee)
activate room_svr
room_svr -> room_svr : check inviter
room_svr -> room_svr : add invitee
room_svr -> room_factory : resp invite result
deactivate room_svr
room_factory -> room_factory : gen token(userid,roomid)
room_factory ->o fcgi : resp token
deactivate room_factory

== Login ==
collections access
sock_cli o-> access : login with authorize
activate access
access -> access : decode author info

access ->o sock_cli : author success
deactivate access

@enduml