Files
fluxer/fluxer_gateway/src/session/session_monitor.erl
Hampus Kraft 2f557eda8c initial commit
2026-01-01 21:05:54 +00:00

107 lines
3.7 KiB
Erlang

%% Copyright (C) 2026 Fluxer Contributors
%%
%% This file is part of Fluxer.
%%
%% Fluxer is free software: you can redistribute it and/or modify
%% it under the terms of the GNU Affero General Public License as published by
%% the Free Software Foundation, either version 3 of the License, or
%% (at your option) any later version.
%%
%% Fluxer is distributed in the hope that it will be useful,
%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%% GNU Affero General Public License for more details.
%%
%% You should have received a copy of the GNU Affero General Public License
%% along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
-module(session_monitor).
-export([
handle_process_down/3,
find_guild_by_ref/2,
find_call_by_ref/2
]).
handle_process_down(Ref, _Reason, State) ->
SocketRef = maps:get(socket_mref, State, undefined),
PresenceRef = maps:get(presence_mref, State, undefined),
Guilds = maps:get(guilds, State),
Calls = maps:get(calls, State, #{}),
case Ref of
SocketRef when Ref =:= SocketRef ->
self() ! {presence_update, #{status => offline}},
erlang:send_after(10000, self(), resume_timeout),
{noreply, maps:merge(State, #{socket_pid => undefined, socket_mref => undefined})};
PresenceRef when Ref =:= PresenceRef ->
self() ! {presence_connect, 0},
{noreply, maps:put(presence_pid, undefined, State)};
_ ->
case find_guild_by_ref(Ref, Guilds) of
{ok, GuildId} ->
handle_guild_down(GuildId, _Reason, State, Guilds);
not_found ->
case find_call_by_ref(Ref, Calls) of
{ok, ChannelId} ->
handle_call_down(ChannelId, _Reason, State, Calls);
not_found ->
{noreply, State}
end
end
end.
handle_guild_down(GuildId, Reason, State, Guilds) ->
case Reason of
killed ->
gen_server:cast(self(), {guild_leave, GuildId}),
{noreply, State};
_ ->
GuildDeleteData = #{
<<"id">> => integer_to_binary(GuildId),
<<"unavailable">> => true
},
{noreply, UpdatedState} = session_dispatch:handle_dispatch(
guild_delete, GuildDeleteData, State
),
NewGuilds = maps:put(GuildId, undefined, Guilds),
erlang:send_after(1000, self(), {guild_connect, GuildId, 0}),
{noreply, maps:put(guilds, NewGuilds, UpdatedState)}
end.
handle_call_down(ChannelId, Reason, State, Calls) ->
case Reason of
killed ->
NewCalls = maps:remove(ChannelId, Calls),
{noreply, maps:put(calls, NewCalls, State)};
_ ->
CallDeleteData = #{
<<"channel_id">> => integer_to_binary(ChannelId),
<<"unavailable">> => true
},
{noreply, UpdatedState} = session_dispatch:handle_dispatch(
call_delete, CallDeleteData, State
),
NewCalls = maps:put(ChannelId, undefined, Calls),
erlang:send_after(1000, self(), {call_reconnect, ChannelId, 0}),
{noreply, maps:put(calls, NewCalls, UpdatedState)}
end.
find_guild_by_ref(Ref, Guilds) ->
find_by_ref(Ref, Guilds).
find_call_by_ref(Ref, Calls) ->
find_by_ref(Ref, Calls).
find_by_ref(Ref, Map) ->
maps:fold(
fun
(Id, {_Pid, R}, _) when R =:= Ref -> {ok, Id};
(_, _, Acc) -> Acc
end,
not_found,
Map
).